Ajout FishPeper
This commit is contained in:
210
OpenSky/arch/stm32f1/device/startup_stm32f10x.c
Normal file
210
OpenSky/arch/stm32f1/device/startup_stm32f10x.c
Normal file
@@ -0,0 +1,210 @@
|
||||
/* Generated by startup_generator */
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||||
#include "stm32f10x.h"
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#include <core_cm3.h>
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#include "led.h"
|
||||
|
||||
extern void _estack(void); // to force type checking
|
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void Reset_Handler(void);
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|
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void default_handler (void) {
|
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uint64_t i;
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led_red_on();
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while (1) {
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for (i=0; i<0x00FFFFF; i++) {}
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led_green_off();
|
||||
for (i=0; i<0x00FFFFF; i++) {}
|
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led_green_on();
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}
|
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while (1);
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}
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||||
|
||||
void __attribute__ ((weak)) __libc_init_array (void) {}
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||||
|
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// Linker supplied pointers
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||||
|
||||
extern unsigned long _sidata;
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extern unsigned long _sdata;
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extern unsigned long _edata;
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extern unsigned long _sbss;
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extern unsigned long _ebss;
|
||||
|
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extern int main(void);
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|
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void Reset_Handler(void) {
|
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|
||||
unsigned long *src, *dst;
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||||
|
||||
src = &_sidata;
|
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dst = &_sdata;
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||||
|
||||
// Copy data initializers
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||||
|
||||
while (dst < &_edata)
|
||||
*(dst++) = *(src++);
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||||
|
||||
// Zero bss
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||||
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dst = &_sbss;
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||||
while (dst < &_ebss)
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*(dst++) = 0;
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||||
|
||||
SystemInit();
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__libc_init_array();
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main();
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while (1) {}
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||||
}
|
||||
|
||||
/* Vector Table */
|
||||
|
||||
void NMI_Handler (void) __attribute__ ((weak, alias ("default_handler")));
|
||||
void HardFault_Handler (void) __attribute__ ((weak, alias ("default_handler")));
|
||||
void MemMange_Handler (void) __attribute__ ((weak, alias ("default_handler")));
|
||||
void BusFault_Handler (void) __attribute__ ((weak, alias ("default_handler")));
|
||||
void UsageFault_Handler (void) __attribute__ ((weak, alias ("default_handler")));
|
||||
void SVC_Handler (void) __attribute__ ((weak, alias ("default_handler")));
|
||||
void DebugMon_Handler (void) __attribute__ ((weak, alias ("default_handler")));
|
||||
void PendSV_Handler (void) __attribute__ ((weak, alias ("default_handler")));
|
||||
void SysTick_Handler (void) __attribute__ ((weak, alias ("default_handler")));
|
||||
void WWDG_IRQHandler (void) __attribute__ ((weak, alias ("default_handler")));
|
||||
void PVD_IRQHandler (void) __attribute__ ((weak, alias ("default_handler")));
|
||||
void TAMPER_STAMP_IRQHandler (void) __attribute__ ((weak, alias ("default_handler")));
|
||||
void RTC_WKUP_IRQHandler (void) __attribute__ ((weak, alias ("default_handler")));
|
||||
void FLASH_IRQHandler (void) __attribute__ ((weak, alias ("default_handler")));
|
||||
void RCC_IRQHandler (void) __attribute__ ((weak, alias ("default_handler")));
|
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void EXTI0_IRQHandler (void) __attribute__ ((weak, alias ("default_handler")));
|
||||
void EXTI1_IRQHandler (void) __attribute__ ((weak, alias ("default_handler")));
|
||||
void EXTI2_IRQHandler (void) __attribute__ ((weak, alias ("default_handler")));
|
||||
void EXTI3_IRQHandler (void) __attribute__ ((weak, alias ("default_handler")));
|
||||
void EXTI4_IRQHandler (void) __attribute__ ((weak, alias ("default_handler")));
|
||||
void DMA1_Channel1_IRQHandler (void) __attribute__ ((weak, alias ("default_handler")));
|
||||
void DMA1_Channel2_IRQHandler (void) __attribute__ ((weak, alias ("default_handler")));
|
||||
void DMA1_Channel3_IRQHandler (void) __attribute__ ((weak, alias ("default_handler")));
|
||||
void DMA1_Channel4_IRQHandler (void) __attribute__ ((weak, alias ("default_handler")));
|
||||
void DMA1_Channel5_IRQHandler (void) __attribute__ ((weak, alias ("default_handler")));
|
||||
void DMA1_Channel6_IRQHandler (void) __attribute__ ((weak, alias ("default_handler")));
|
||||
void DMA1_Channel7_IRQHandler (void) __attribute__ ((weak, alias ("default_handler")));
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||||
void ADC1_IRQHandler (void) __attribute__ ((weak, alias ("default_handler")));
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||||
void EXTI9_5_IRQHandler (void) __attribute__ ((weak, alias ("default_handler")));
|
||||
void TIM1_BRK_TIM15_IRQHandler (void) __attribute__ ((weak, alias ("default_handler")));
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||||
void TIM1_UP_TIM16_IRQHandler (void) __attribute__ ((weak, alias ("default_handler")));
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||||
void TIM1_TRG_COM_TIM17_IRQHandler (void) __attribute__ ((weak, alias ("default_handler")));
|
||||
void TIM1_CC_IRQHandler (void) __attribute__ ((weak, alias ("default_handler")));
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||||
void TIM2_IRQHandler (void) __attribute__ ((weak, alias ("default_handler")));
|
||||
void TIM3_IRQHandler (void) __attribute__ ((weak, alias ("default_handler")));
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||||
void TIM4_IRQHandler (void) __attribute__ ((weak, alias ("default_handler")));
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||||
void I2C1_EV_IRQHandler (void) __attribute__ ((weak, alias ("default_handler")));
|
||||
void I2C1_ER_IRQHandler (void) __attribute__ ((weak, alias ("default_handler")));
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||||
void I2C2_EV_IRQHandler (void) __attribute__ ((weak, alias ("default_handler")));
|
||||
void I2C2_ER_IRQHandler (void) __attribute__ ((weak, alias ("default_handler")));
|
||||
void SPI1_IRQHandler (void) __attribute__ ((weak, alias ("default_handler")));
|
||||
void SPI2_IRQHandler (void) __attribute__ ((weak, alias ("default_handler")));
|
||||
void USART1_IRQHandler (void) __attribute__ ((weak, alias ("default_handler")));
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||||
void USART2_IRQHandler (void) __attribute__ ((weak, alias ("default_handler")));
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||||
void USART3_IRQHandler (void) __attribute__ ((weak, alias ("default_handler")));
|
||||
void EXTI15_10_IRQHandler (void) __attribute__ ((weak, alias ("default_handler")));
|
||||
void RTCAlarm_IRQHandler (void) __attribute__ ((weak, alias ("default_handler")));
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||||
void CEC_IRQHandler (void) __attribute__ ((weak, alias ("default_handler")));
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||||
void TIM12_IRQHandler (void) __attribute__ ((weak, alias ("default_handler")));
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||||
void TIM13_IRQHandler (void) __attribute__ ((weak, alias ("default_handler")));
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||||
void TIM14_IRQHandler (void) __attribute__ ((weak, alias ("default_handler")));
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||||
void ADC3_IRQHandler (void) __attribute__ ((weak, alias ("default_handler")));
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||||
void FSMC_IRQHandler (void) __attribute__ ((weak, alias ("default_handler")));
|
||||
void TIM5_IRQHandler (void) __attribute__ ((weak, alias ("default_handler")));
|
||||
void SPI3_IRQHandler (void) __attribute__ ((weak, alias ("default_handler")));
|
||||
void UART4_IRQHandler (void) __attribute__ ((weak, alias ("default_handler")));
|
||||
void UART5_IRQHandler (void) __attribute__ ((weak, alias ("default_handler")));
|
||||
void TIM6_DAC_IRQHandler (void) __attribute__ ((weak, alias ("default_handler")));
|
||||
void TIM7_IRQHandler (void) __attribute__ ((weak, alias ("default_handler")));
|
||||
void DMA2_Channel1_IRQHandler (void) __attribute__ ((weak, alias ("default_handler")));
|
||||
void DMA2_Channel2_IRQHandler (void) __attribute__ ((weak, alias ("default_handler")));
|
||||
void DMA2_Channel3_IRQHandler (void) __attribute__ ((weak, alias ("default_handler")));
|
||||
void DMA2_Channel4_5_IRQHandler (void) __attribute__ ((weak, alias ("default_handler")));
|
||||
void DMA2_Channel5_IRQHandler (void) __attribute__ ((weak, alias ("default_handler")));
|
||||
|
||||
|
||||
|
||||
__attribute__ ((section(".isr_vector")))
|
||||
|
||||
void (* const g_pfnVectors[])(void) = {
|
||||
|
||||
_estack,
|
||||
Reset_Handler,
|
||||
NMI_Handler,
|
||||
HardFault_Handler,
|
||||
MemMange_Handler,
|
||||
BusFault_Handler,
|
||||
UsageFault_Handler,
|
||||
0, 0, 0, 0,
|
||||
SVC_Handler,
|
||||
DebugMon_Handler,
|
||||
0,
|
||||
PendSV_Handler,
|
||||
SysTick_Handler,
|
||||
WWDG_IRQHandler,
|
||||
PVD_IRQHandler,
|
||||
TAMPER_STAMP_IRQHandler,
|
||||
RTC_WKUP_IRQHandler,
|
||||
FLASH_IRQHandler,
|
||||
RCC_IRQHandler,
|
||||
EXTI0_IRQHandler,
|
||||
EXTI1_IRQHandler,
|
||||
EXTI2_IRQHandler,
|
||||
EXTI3_IRQHandler,
|
||||
EXTI4_IRQHandler,
|
||||
DMA1_Channel1_IRQHandler,
|
||||
DMA1_Channel2_IRQHandler,
|
||||
DMA1_Channel3_IRQHandler,
|
||||
DMA1_Channel4_IRQHandler,
|
||||
DMA1_Channel5_IRQHandler,
|
||||
DMA1_Channel6_IRQHandler,
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||||
DMA1_Channel7_IRQHandler,
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||||
ADC1_IRQHandler,
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0, 0, 0, 0,
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EXTI9_5_IRQHandler,
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||||
TIM1_BRK_TIM15_IRQHandler,
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||||
TIM1_UP_TIM16_IRQHandler,
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||||
TIM1_TRG_COM_TIM17_IRQHandler,
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||||
TIM1_CC_IRQHandler,
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||||
TIM2_IRQHandler,
|
||||
TIM3_IRQHandler,
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||||
TIM4_IRQHandler,
|
||||
I2C1_EV_IRQHandler,
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||||
I2C1_ER_IRQHandler,
|
||||
I2C2_EV_IRQHandler,
|
||||
I2C2_ER_IRQHandler,
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||||
SPI1_IRQHandler,
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||||
SPI2_IRQHandler,
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||||
USART1_IRQHandler,
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||||
USART2_IRQHandler,
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||||
USART3_IRQHandler,
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||||
EXTI15_10_IRQHandler,
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||||
RTCAlarm_IRQHandler,
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||||
CEC_IRQHandler,
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||||
TIM12_IRQHandler,
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||||
TIM13_IRQHandler,
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||||
TIM14_IRQHandler,
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||||
0,
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||||
ADC3_IRQHandler,
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||||
FSMC_IRQHandler,
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||||
0,
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||||
TIM5_IRQHandler,
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||||
SPI3_IRQHandler,
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||||
UART4_IRQHandler,
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||||
UART5_IRQHandler,
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||||
TIM6_DAC_IRQHandler,
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||||
TIM7_IRQHandler,
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||||
DMA2_Channel1_IRQHandler,
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||||
DMA2_Channel2_IRQHandler,
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||||
DMA2_Channel3_IRQHandler,
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||||
DMA2_Channel4_5_IRQHandler,
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||||
DMA2_Channel5_IRQHandler,
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||||
0, 0, 0, 0, 0, 0, 0, 0,
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||||
0,
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||||
#if defined (STM32F10X_LD_VL) || (defined STM32F10X_MD_VL)
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[0x1CC/4] = 0xF108F85F
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||||
#elif defined (STM32F10X_HD_VL)
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[0x1E0/4] = 0xF108F85F
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#endif
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};
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8336
OpenSky/arch/stm32f1/device/stm32f10x.h
Normal file
8336
OpenSky/arch/stm32f1/device/stm32f10x.h
Normal file
File diff suppressed because it is too large
Load Diff
23
OpenSky/arch/stm32f1/device/stm32f10x_conf.h
Normal file
23
OpenSky/arch/stm32f1/device/stm32f10x_conf.h
Normal file
@@ -0,0 +1,23 @@
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||||
#ifndef __STM32F10x_CONF_H
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#define __STM32F10x_CONF_H
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|
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#ifdef USE_FULL_ASSERT
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||||
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||||
/**
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||||
* @brief The assert_param macro is used for function's parameters check.
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* @param expr: If expr is false, it calls assert_failed function
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* which reports the name of the source file and the source
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||||
* line number of the call that failed.
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* If expr is true, it returns no value.
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||||
* @retval None
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||||
*/
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||||
#define assert_param(expr) ((expr) ? (void)0 : assert_failed((uint8_t *)__FILE__, __LINE__))
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||||
/* Exported functions ------------------------------------------------------- */
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||||
void assert_failed(uint8_t* file, uint32_t line);
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||||
#else
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||||
#define assert_param(expr) ((void)0)
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#endif /* USE_FULL_ASSERT */
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||||
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||||
#endif /* __STM32F10x_CONF_H */
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/******************* (C) COPYRIGHT 2010 STMicroelectronics *****END OF FILE****/
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992
OpenSky/arch/stm32f1/device/system_stm32f10x.c
Normal file
992
OpenSky/arch/stm32f1/device/system_stm32f10x.c
Normal file
@@ -0,0 +1,992 @@
|
||||
/**
|
||||
******************************************************************************
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||||
* @file USART/Printf/system_stm32f10x.c
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||||
* @author MCD Application Team
|
||||
* @version V3.5.0
|
||||
* @date 08-April-2011
|
||||
* @brief CMSIS Cortex-M3 Device Peripheral Access Layer System Source File.
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||||
*
|
||||
* 1. This file provides two functions and one global variable to be called from
|
||||
* user application:
|
||||
* - SystemInit(): Setups the system clock (System clock source, PLL Multiplier
|
||||
* factors, AHB/APBx prescalers and Flash settings).
|
||||
* This function is called at startup just after reset and
|
||||
* before branch to main program. This call is made inside
|
||||
* the "startup_stm32f10x_xx.s" file.
|
||||
*
|
||||
* - SystemCoreClock variable: Contains the core clock (HCLK), it can be used
|
||||
* by the user application to setup the SysTick
|
||||
* timer or configure other parameters.
|
||||
*
|
||||
* - SystemCoreClockUpdate(): Updates the variable SystemCoreClock and must
|
||||
* be called whenever the core clock is changed
|
||||
* during program execution.
|
||||
*
|
||||
* 2. After each device reset the HSI (8 MHz) is used as system clock source.
|
||||
* Then SystemInit() function is called, in "startup_stm32f10x_xx.s" file, to
|
||||
* configure the system clock before to branch to main program.
|
||||
*
|
||||
* 3. If the system clock source selected by user fails to startup, the SystemInit()
|
||||
* function will do nothing and HSI still used as system clock source. User can
|
||||
* add some code to deal with this issue inside the SetSysClock() function.
|
||||
*
|
||||
* 4. The default value of HSE crystal is set to 8 MHz (or 25 MHz, depedning on
|
||||
* the product used), refer to "HSE_VALUE" define in "stm32f10x.h" file.
|
||||
* When HSE is used as system clock source, directly or through PLL, and you
|
||||
* are using different crystal you have to adapt the HSE value to your own
|
||||
* configuration.
|
||||
*
|
||||
******************************************************************************
|
||||
* @attention
|
||||
*
|
||||
* THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
|
||||
* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
|
||||
* TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
|
||||
* DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
|
||||
* FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
|
||||
* CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
|
||||
*
|
||||
* <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2>
|
||||
******************************************************************************
|
||||
*/
|
||||
|
||||
/** @addtogroup CMSIS
|
||||
* @{
|
||||
*/
|
||||
|
||||
/** @addtogroup stm32f10x_system
|
||||
* @{
|
||||
*/
|
||||
|
||||
/** @addtogroup STM32F10x_System_Private_Includes
|
||||
* @{
|
||||
*/
|
||||
|
||||
#include "stm32f10x.h"
|
||||
|
||||
/**
|
||||
* @}
|
||||
*/
|
||||
|
||||
/** @addtogroup STM32F10x_System_Private_TypesDefinitions
|
||||
* @{
|
||||
*/
|
||||
|
||||
/**
|
||||
* @}
|
||||
*/
|
||||
|
||||
/** @addtogroup STM32F10x_System_Private_Defines
|
||||
* @{
|
||||
*/
|
||||
|
||||
/*!< Uncomment the line corresponding to the desired System clock (SYSCLK)
|
||||
frequency (after reset the HSI is used as SYSCLK source)
|
||||
|
||||
IMPORTANT NOTE:
|
||||
==============
|
||||
1. After each device reset the HSI is used as System clock source.
|
||||
|
||||
2. Please make sure that the selected System clock doesn't exceed your device's
|
||||
maximum frequency.
|
||||
|
||||
3. If none of the define below is enabled, the HSI is used as System clock
|
||||
source.
|
||||
|
||||
4. The System clock configuration functions provided within this file assume that:
|
||||
- For Low, Medium and High density Value line devices an external 8MHz
|
||||
crystal is used to drive the System clock.
|
||||
- For Low, Medium and High density devices an external 8MHz crystal is
|
||||
used to drive the System clock.
|
||||
- For Connectivity line devices an external 25MHz crystal is used to drive
|
||||
the System clock.
|
||||
If you are using different crystal you have to adapt those functions accordingly.
|
||||
*/
|
||||
|
||||
#define SYSCLK_FREQ_24MHz 24000000
|
||||
|
||||
/*!< Uncomment the following line if you need to use external SRAM mounted
|
||||
on STM3210E-EVAL board (STM32 High density and XL-density devices) or on
|
||||
STM32100E-EVAL board (STM32 High-density value line devices) as data memory */
|
||||
#if defined (STM32F10X_HD) || (defined STM32F10X_XL) || (defined STM32F10X_HD_VL)
|
||||
/* #define DATA_IN_ExtSRAM */
|
||||
#endif
|
||||
|
||||
/*!< Uncomment the following line if you need to relocate your vector Table in
|
||||
Internal SRAM. */
|
||||
/* #define VECT_TAB_SRAM */
|
||||
#define VECT_TAB_OFFSET 0x0 /*!< Vector Table base offset field.
|
||||
This value must be a multiple of 0x200. */
|
||||
|
||||
|
||||
/**
|
||||
* @}
|
||||
*/
|
||||
|
||||
/** @addtogroup STM32F10x_System_Private_Macros
|
||||
* @{
|
||||
*/
|
||||
|
||||
/**
|
||||
* @}
|
||||
*/
|
||||
|
||||
/** @addtogroup STM32F10x_System_Private_Variables
|
||||
* @{
|
||||
*/
|
||||
|
||||
/*******************************************************************************
|
||||
* Clock Definitions
|
||||
*******************************************************************************/
|
||||
uint32_t SystemCoreClock = SYSCLK_FREQ_24MHz; /*!< System Clock Frequency (Core Clock) */
|
||||
|
||||
__I uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9};
|
||||
/**
|
||||
* @}
|
||||
*/
|
||||
|
||||
/** @addtogroup STM32F10x_System_Private_FunctionPrototypes
|
||||
* @{
|
||||
*/
|
||||
|
||||
static void SetSysClock(void);
|
||||
static void SetSysClockTo24(void);
|
||||
|
||||
/**
|
||||
* @}
|
||||
*/
|
||||
|
||||
/** @addtogroup STM32F10x_System_Private_Functions
|
||||
* @{
|
||||
*/
|
||||
|
||||
/**
|
||||
* @brief Setup the microcontroller system
|
||||
* Initialize the Embedded Flash Interface, the PLL and update the
|
||||
* SystemCoreClock variable.
|
||||
* @note This function should be used only after reset.
|
||||
* @param None
|
||||
* @retval None
|
||||
*/
|
||||
void SystemInit (void) {
|
||||
/* Reset the RCC clock configuration to the default reset state(for debug purpose) */
|
||||
/* Set HSION bit */
|
||||
RCC->CR |= (uint32_t)0x00000001;
|
||||
|
||||
/* Reset SW, HPRE, PPRE1, PPRE2, ADCPRE and MCO bits */
|
||||
#ifndef STM32F10X_CL
|
||||
RCC->CFGR &= (uint32_t)0xF8FF0000;
|
||||
#else
|
||||
RCC->CFGR &= (uint32_t)0xF0FF0000;
|
||||
#endif /* STM32F10X_CL */
|
||||
|
||||
/* Reset HSEON, CSSON and PLLON bits */
|
||||
RCC->CR &= (uint32_t)0xFEF6FFFF;
|
||||
|
||||
/* Reset HSEBYP bit */
|
||||
RCC->CR &= (uint32_t)0xFFFBFFFF;
|
||||
|
||||
/* Reset PLLSRC, PLLXTPRE, PLLMUL and USBPRE/OTGFSPRE bits */
|
||||
RCC->CFGR &= (uint32_t)0xFF80FFFF;
|
||||
|
||||
#ifdef STM32F10X_CL
|
||||
/* Reset PLL2ON and PLL3ON bits */
|
||||
RCC->CR &= (uint32_t)0xEBFFFFFF;
|
||||
|
||||
/* Disable all interrupts and clear pending bits */
|
||||
RCC->CIR = 0x00FF0000;
|
||||
|
||||
/* Reset CFGR2 register */
|
||||
RCC->CFGR2 = 0x00000000;
|
||||
#elif defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || (defined STM32F10X_HD_VL)
|
||||
/* Disable all interrupts and clear pending bits */
|
||||
RCC->CIR = 0x009F0000;
|
||||
|
||||
/* Reset CFGR2 register */
|
||||
RCC->CFGR2 = 0x00000000;
|
||||
#else
|
||||
/* Disable all interrupts and clear pending bits */
|
||||
RCC->CIR = 0x009F0000;
|
||||
#endif /* STM32F10X_CL */
|
||||
|
||||
/* Configure the System clock frequency, HCLK, PCLK2 and PCLK1 prescalers */
|
||||
/* Configure the Flash Latency cycles and enable prefetch buffer */
|
||||
SetSysClock();
|
||||
|
||||
#ifdef VECT_TAB_SRAM
|
||||
SCB->VTOR = SRAM_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal SRAM. */
|
||||
#else
|
||||
SCB->VTOR = FLASH_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal FLASH. */
|
||||
#endif
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Update SystemCoreClock variable according to Clock Register Values.
|
||||
* The SystemCoreClock variable contains the core clock (HCLK), it can
|
||||
* be used by the user application to setup the SysTick timer or configure
|
||||
* other parameters.
|
||||
*
|
||||
* @note Each time the core clock (HCLK) changes, this function must be called
|
||||
* to update SystemCoreClock variable value. Otherwise, any configuration
|
||||
* based on this variable will be incorrect.
|
||||
*
|
||||
* @note - The system frequency computed by this function is not the real
|
||||
* frequency in the chip. It is calculated based on the predefined
|
||||
* constant and the selected clock source:
|
||||
*
|
||||
* - If SYSCLK source is HSI, SystemCoreClock will contain the HSI_VALUE(*)
|
||||
*
|
||||
* - If SYSCLK source is HSE, SystemCoreClock will contain the HSE_VALUE(**)
|
||||
*
|
||||
* - If SYSCLK source is PLL, SystemCoreClock will contain the HSE_VALUE(**)
|
||||
* or HSI_VALUE(*) multiplied by the PLL factors.
|
||||
*
|
||||
* (*) HSI_VALUE is a constant defined in stm32f1xx.h file (default value
|
||||
* 8 MHz) but the real value may vary depending on the variations
|
||||
* in voltage and temperature.
|
||||
*
|
||||
* (**) HSE_VALUE is a constant defined in stm32f1xx.h file (default value
|
||||
* 8 MHz or 25 MHz, depedning on the product used), user has to ensure
|
||||
* that HSE_VALUE is same as the real frequency of the crystal used.
|
||||
* Otherwise, this function may have wrong result.
|
||||
*
|
||||
* - The result of this function could be not correct when using fractional
|
||||
* value for HSE crystal.
|
||||
* @param None
|
||||
* @retval None
|
||||
*/
|
||||
void SystemCoreClockUpdate (void)
|
||||
{
|
||||
uint32_t tmp = 0, pllmull = 0, pllsource = 0;
|
||||
|
||||
#ifdef STM32F10X_CL
|
||||
uint32_t prediv1source = 0, prediv1factor = 0, prediv2factor = 0, pll2mull = 0;
|
||||
#endif /* STM32F10X_CL */
|
||||
|
||||
#if defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || (defined STM32F10X_HD_VL)
|
||||
uint32_t prediv1factor = 0;
|
||||
#endif /* STM32F10X_LD_VL or STM32F10X_MD_VL or STM32F10X_HD_VL */
|
||||
|
||||
/* Get SYSCLK source -------------------------------------------------------*/
|
||||
tmp = RCC->CFGR & RCC_CFGR_SWS;
|
||||
|
||||
switch (tmp)
|
||||
{
|
||||
case 0x00: /* HSI used as system clock */
|
||||
SystemCoreClock = HSI_VALUE;
|
||||
break;
|
||||
case 0x04: /* HSE used as system clock */
|
||||
SystemCoreClock = HSE_VALUE;
|
||||
break;
|
||||
case 0x08: /* PLL used as system clock */
|
||||
|
||||
/* Get PLL clock source and multiplication factor ----------------------*/
|
||||
pllmull = RCC->CFGR & RCC_CFGR_PLLMULL;
|
||||
pllsource = RCC->CFGR & RCC_CFGR_PLLSRC;
|
||||
|
||||
#ifndef STM32F10X_CL
|
||||
pllmull = ( pllmull >> 18) + 2;
|
||||
|
||||
if (pllsource == 0x00)
|
||||
{
|
||||
/* HSI oscillator clock divided by 2 selected as PLL clock entry */
|
||||
SystemCoreClock = (HSI_VALUE >> 1) * pllmull;
|
||||
}
|
||||
else
|
||||
{
|
||||
#if defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || (defined STM32F10X_HD_VL)
|
||||
prediv1factor = (RCC->CFGR2 & RCC_CFGR2_PREDIV1) + 1;
|
||||
/* HSE oscillator clock selected as PREDIV1 clock entry */
|
||||
SystemCoreClock = (HSE_VALUE / prediv1factor) * pllmull;
|
||||
#else
|
||||
/* HSE selected as PLL clock entry */
|
||||
if ((RCC->CFGR & RCC_CFGR_PLLXTPRE) != (uint32_t)RESET)
|
||||
{/* HSE oscillator clock divided by 2 */
|
||||
SystemCoreClock = (HSE_VALUE >> 1) * pllmull;
|
||||
}
|
||||
else
|
||||
{
|
||||
SystemCoreClock = HSE_VALUE * pllmull;
|
||||
}
|
||||
#endif
|
||||
}
|
||||
#else
|
||||
pllmull = pllmull >> 18;
|
||||
|
||||
if (pllmull != 0x0D)
|
||||
{
|
||||
pllmull += 2;
|
||||
}
|
||||
else
|
||||
{ /* PLL multiplication factor = PLL input clock * 6.5 */
|
||||
pllmull = 13 / 2;
|
||||
}
|
||||
|
||||
if (pllsource == 0x00)
|
||||
{
|
||||
/* HSI oscillator clock divided by 2 selected as PLL clock entry */
|
||||
SystemCoreClock = (HSI_VALUE >> 1) * pllmull;
|
||||
}
|
||||
else
|
||||
{/* PREDIV1 selected as PLL clock entry */
|
||||
|
||||
/* Get PREDIV1 clock source and division factor */
|
||||
prediv1source = RCC->CFGR2 & RCC_CFGR2_PREDIV1SRC;
|
||||
prediv1factor = (RCC->CFGR2 & RCC_CFGR2_PREDIV1) + 1;
|
||||
|
||||
if (prediv1source == 0)
|
||||
{
|
||||
/* HSE oscillator clock selected as PREDIV1 clock entry */
|
||||
SystemCoreClock = (HSE_VALUE / prediv1factor) * pllmull;
|
||||
}
|
||||
else
|
||||
{/* PLL2 clock selected as PREDIV1 clock entry */
|
||||
|
||||
/* Get PREDIV2 division factor and PLL2 multiplication factor */
|
||||
prediv2factor = ((RCC->CFGR2 & RCC_CFGR2_PREDIV2) >> 4) + 1;
|
||||
pll2mull = ((RCC->CFGR2 & RCC_CFGR2_PLL2MUL) >> 8 ) + 2;
|
||||
SystemCoreClock = (((HSE_VALUE / prediv2factor) * pll2mull) / prediv1factor) * pllmull;
|
||||
}
|
||||
}
|
||||
#endif /* STM32F10X_CL */
|
||||
break;
|
||||
|
||||
default:
|
||||
SystemCoreClock = HSI_VALUE;
|
||||
break;
|
||||
}
|
||||
|
||||
/* Compute HCLK clock frequency ----------------*/
|
||||
/* Get HCLK prescaler */
|
||||
tmp = AHBPrescTable[((RCC->CFGR & RCC_CFGR_HPRE) >> 4)];
|
||||
/* HCLK clock frequency */
|
||||
SystemCoreClock >>= tmp;
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Configures the System clock frequency, HCLK, PCLK2 and PCLK1 prescalers.
|
||||
* @param None
|
||||
* @retval None
|
||||
*/
|
||||
static void SetSysClock(void)
|
||||
{
|
||||
SetSysClockTo24();
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Setup the external memory controller. Called in startup_stm32f10x.s
|
||||
* before jump to __main
|
||||
* @param None
|
||||
* @retval None
|
||||
*/
|
||||
#ifdef DATA_IN_ExtSRAM
|
||||
/**
|
||||
* @brief Setup the external memory controller.
|
||||
* Called in startup_stm32f10x_xx.s/.c before jump to main.
|
||||
* This function configures the external SRAM mounted on STM3210E-EVAL
|
||||
* board (STM32 High density devices). This SRAM will be used as program
|
||||
* data memory (including heap and stack).
|
||||
* @param None
|
||||
* @retval None
|
||||
*/
|
||||
void SystemInit_ExtMemCtl(void)
|
||||
{
|
||||
/*!< FSMC Bank1 NOR/SRAM3 is used for the STM3210E-EVAL, if another Bank is
|
||||
required, then adjust the Register Addresses */
|
||||
|
||||
/* Enable FSMC clock */
|
||||
RCC->AHBENR = 0x00000114;
|
||||
|
||||
/* Enable GPIOD, GPIOE, GPIOF and GPIOG clocks */
|
||||
RCC->APB2ENR = 0x000001E0;
|
||||
|
||||
/* --------------- SRAM Data lines, NOE and NWE configuration ---------------*/
|
||||
/*---------------- SRAM Address lines configuration -------------------------*/
|
||||
/*---------------- NOE and NWE configuration --------------------------------*/
|
||||
/*---------------- NE3 configuration ----------------------------------------*/
|
||||
/*---------------- NBL0, NBL1 configuration ---------------------------------*/
|
||||
|
||||
GPIOD->CRL = 0x44BB44BB;
|
||||
GPIOD->CRH = 0xBBBBBBBB;
|
||||
|
||||
GPIOE->CRL = 0xB44444BB;
|
||||
GPIOE->CRH = 0xBBBBBBBB;
|
||||
|
||||
GPIOF->CRL = 0x44BBBBBB;
|
||||
GPIOF->CRH = 0xBBBB4444;
|
||||
|
||||
GPIOG->CRL = 0x44BBBBBB;
|
||||
GPIOG->CRH = 0x44444B44;
|
||||
|
||||
/*---------------- FSMC Configuration ---------------------------------------*/
|
||||
/*---------------- Enable FSMC Bank1_SRAM Bank ------------------------------*/
|
||||
|
||||
FSMC_Bank1->BTCR[4] = 0x00001011;
|
||||
FSMC_Bank1->BTCR[5] = 0x00000200;
|
||||
}
|
||||
#endif /* DATA_IN_ExtSRAM */
|
||||
|
||||
#ifdef SYSCLK_FREQ_HSE
|
||||
/**
|
||||
* @brief Selects HSE as System clock source and configure HCLK, PCLK2
|
||||
* and PCLK1 prescalers.
|
||||
* @note This function should be used only after reset.
|
||||
* @param None
|
||||
* @retval None
|
||||
*/
|
||||
static void SetSysClockToHSE(void)
|
||||
{
|
||||
__IO uint32_t StartUpCounter = 0, HSEStatus = 0;
|
||||
|
||||
/* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/
|
||||
/* Enable HSE */
|
||||
RCC->CR |= ((uint32_t)RCC_CR_HSEON);
|
||||
|
||||
/* Wait till HSE is ready and if Time out is reached exit */
|
||||
do
|
||||
{
|
||||
HSEStatus = RCC->CR & RCC_CR_HSERDY;
|
||||
StartUpCounter++;
|
||||
} while ((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT));
|
||||
|
||||
if ((RCC->CR & RCC_CR_HSERDY) != RESET)
|
||||
{
|
||||
HSEStatus = (uint32_t)0x01;
|
||||
}
|
||||
else
|
||||
{
|
||||
HSEStatus = (uint32_t)0x00;
|
||||
}
|
||||
|
||||
if (HSEStatus == (uint32_t)0x01)
|
||||
{
|
||||
|
||||
#if !defined STM32F10X_LD_VL && !defined STM32F10X_MD_VL && !defined STM32F10X_HD_VL
|
||||
/* Enable Prefetch Buffer */
|
||||
FLASH->ACR |= FLASH_ACR_PRFTBE;
|
||||
|
||||
/* Flash 0 wait state */
|
||||
FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY);
|
||||
|
||||
#ifndef STM32F10X_CL
|
||||
FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_0;
|
||||
#else
|
||||
if (HSE_VALUE <= 24000000)
|
||||
{
|
||||
FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_0;
|
||||
}
|
||||
else
|
||||
{
|
||||
FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_1;
|
||||
}
|
||||
#endif /* STM32F10X_CL */
|
||||
#endif
|
||||
|
||||
/* HCLK = SYSCLK */
|
||||
RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1;
|
||||
|
||||
/* PCLK2 = HCLK */
|
||||
RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1;
|
||||
|
||||
/* PCLK1 = HCLK */
|
||||
RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV1;
|
||||
|
||||
/* Select HSE as system clock source */
|
||||
RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW));
|
||||
RCC->CFGR |= (uint32_t)RCC_CFGR_SW_HSE;
|
||||
|
||||
/* Wait till HSE is used as system clock source */
|
||||
while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x04)
|
||||
{
|
||||
}
|
||||
}
|
||||
else
|
||||
{ /* If HSE fails to start-up, the application will have wrong clock
|
||||
configuration. User can add here some code to deal with this error */
|
||||
}
|
||||
}
|
||||
#elif defined SYSCLK_FREQ_24MHz
|
||||
/**
|
||||
* @brief Sets System clock frequency to 24MHz and configure HCLK, PCLK2
|
||||
* and PCLK1 prescalers.
|
||||
* @note This function should be used only after reset.
|
||||
* @param None
|
||||
* @retval None
|
||||
*/
|
||||
static void SetSysClockTo24(void)
|
||||
{
|
||||
__IO uint32_t StartUpCounter = 0, HSEStatus = 0;
|
||||
|
||||
/* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/
|
||||
/* Enable HSE */
|
||||
RCC->CR |= ((uint32_t)RCC_CR_HSEON);
|
||||
|
||||
/* Wait till HSE is ready and if Time out is reached exit */
|
||||
do{
|
||||
HSEStatus = RCC->CR & RCC_CR_HSERDY;
|
||||
StartUpCounter++;
|
||||
} while ((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT));
|
||||
|
||||
if ((RCC->CR & RCC_CR_HSERDY) != RESET) {
|
||||
HSEStatus = (uint32_t)0x01;
|
||||
} else {
|
||||
HSEStatus = (uint32_t)0x00;
|
||||
}
|
||||
|
||||
if (HSEStatus == (uint32_t)0x01) {
|
||||
|
||||
/* HCLK = SYSCLK */
|
||||
RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1;
|
||||
|
||||
/* PCLK2 = HCLK */
|
||||
RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1;
|
||||
|
||||
/* PCLK1 = HCLK */
|
||||
RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV1;
|
||||
|
||||
/* PLL configuration: = (HSE / 1) * 2 = 24 MHz */
|
||||
RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL));
|
||||
// RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_PREDIV1 | RCC_CFGR_PLLXTPRE_PREDIV1_Div2 | RCC_CFGR_PLLMULL6);
|
||||
// RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_PREDIV1 | RCC_CFGR_PLLMULL2);
|
||||
RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLMULL2);
|
||||
|
||||
/* Enable PLL */
|
||||
RCC->CR |= RCC_CR_PLLON;
|
||||
|
||||
/* Wait till PLL is ready */
|
||||
while ((RCC->CR & RCC_CR_PLLRDY) == 0) { }
|
||||
|
||||
/* Select PLL as system clock source */
|
||||
RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW));
|
||||
RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL;
|
||||
|
||||
/* Wait till PLL is used as system clock source */
|
||||
while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08)
|
||||
{
|
||||
}
|
||||
}
|
||||
else
|
||||
{ /* If HSE fails to start-up, the application will have wrong clock
|
||||
configuration. User can add here some code to deal with this error */
|
||||
}
|
||||
}
|
||||
#elif defined SYSCLK_FREQ_36MHz
|
||||
/**
|
||||
* @brief Sets System clock frequency to 36MHz and configure HCLK, PCLK2
|
||||
* and PCLK1 prescalers.
|
||||
* @note This function should be used only after reset.
|
||||
* @param None
|
||||
* @retval None
|
||||
*/
|
||||
static void SetSysClockTo36(void)
|
||||
{
|
||||
__IO uint32_t StartUpCounter = 0, HSEStatus = 0;
|
||||
|
||||
/* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/
|
||||
/* Enable HSE */
|
||||
RCC->CR |= ((uint32_t)RCC_CR_HSEON);
|
||||
|
||||
/* Wait till HSE is ready and if Time out is reached exit */
|
||||
do
|
||||
{
|
||||
HSEStatus = RCC->CR & RCC_CR_HSERDY;
|
||||
StartUpCounter++;
|
||||
} while ((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT));
|
||||
|
||||
if ((RCC->CR & RCC_CR_HSERDY) != RESET)
|
||||
{
|
||||
HSEStatus = (uint32_t)0x01;
|
||||
}
|
||||
else
|
||||
{
|
||||
HSEStatus = (uint32_t)0x00;
|
||||
}
|
||||
|
||||
if (HSEStatus == (uint32_t)0x01)
|
||||
{
|
||||
/* Enable Prefetch Buffer */
|
||||
FLASH->ACR |= FLASH_ACR_PRFTBE;
|
||||
|
||||
/* Flash 1 wait state */
|
||||
FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY);
|
||||
FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_1;
|
||||
|
||||
/* HCLK = SYSCLK */
|
||||
RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1;
|
||||
|
||||
/* PCLK2 = HCLK */
|
||||
RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1;
|
||||
|
||||
/* PCLK1 = HCLK */
|
||||
RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV1;
|
||||
|
||||
#ifdef STM32F10X_CL
|
||||
/* Configure PLLs ------------------------------------------------------*/
|
||||
|
||||
/* PLL configuration: PLLCLK = PREDIV1 * 9 = 36 MHz */
|
||||
RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL);
|
||||
RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 |
|
||||
RCC_CFGR_PLLMULL9);
|
||||
|
||||
/*!< PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */
|
||||
/* PREDIV1 configuration: PREDIV1CLK = PLL2 / 10 = 4 MHz */
|
||||
|
||||
RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL |
|
||||
RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC);
|
||||
RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 |
|
||||
RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV10);
|
||||
|
||||
/* Enable PLL2 */
|
||||
RCC->CR |= RCC_CR_PLL2ON;
|
||||
/* Wait till PLL2 is ready */
|
||||
while ((RCC->CR & RCC_CR_PLL2RDY) == 0)
|
||||
{
|
||||
}
|
||||
|
||||
#else
|
||||
/* PLL configuration: PLLCLK = (HSE / 2) * 9 = 36 MHz */
|
||||
RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL));
|
||||
RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLXTPRE_HSE_Div2 | RCC_CFGR_PLLMULL9);
|
||||
#endif /* STM32F10X_CL */
|
||||
|
||||
/* Enable PLL */
|
||||
RCC->CR |= RCC_CR_PLLON;
|
||||
|
||||
/* Wait till PLL is ready */
|
||||
while ((RCC->CR & RCC_CR_PLLRDY) == 0)
|
||||
{
|
||||
}
|
||||
|
||||
/* Select PLL as system clock source */
|
||||
RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW));
|
||||
RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL;
|
||||
|
||||
/* Wait till PLL is used as system clock source */
|
||||
while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08)
|
||||
{
|
||||
}
|
||||
}
|
||||
else
|
||||
{ /* If HSE fails to start-up, the application will have wrong clock
|
||||
configuration. User can add here some code to deal with this error */
|
||||
}
|
||||
}
|
||||
#elif defined SYSCLK_FREQ_48MHz
|
||||
/**
|
||||
* @brief Sets System clock frequency to 48MHz and configure HCLK, PCLK2
|
||||
* and PCLK1 prescalers.
|
||||
* @note This function should be used only after reset.
|
||||
* @param None
|
||||
* @retval None
|
||||
*/
|
||||
static void SetSysClockTo48(void)
|
||||
{
|
||||
__IO uint32_t StartUpCounter = 0, HSEStatus = 0;
|
||||
|
||||
/* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/
|
||||
/* Enable HSE */
|
||||
RCC->CR |= ((uint32_t)RCC_CR_HSEON);
|
||||
|
||||
/* Wait till HSE is ready and if Time out is reached exit */
|
||||
do
|
||||
{
|
||||
HSEStatus = RCC->CR & RCC_CR_HSERDY;
|
||||
StartUpCounter++;
|
||||
} while ((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT));
|
||||
|
||||
if ((RCC->CR & RCC_CR_HSERDY) != RESET)
|
||||
{
|
||||
HSEStatus = (uint32_t)0x01;
|
||||
}
|
||||
else
|
||||
{
|
||||
HSEStatus = (uint32_t)0x00;
|
||||
}
|
||||
|
||||
if (HSEStatus == (uint32_t)0x01)
|
||||
{
|
||||
/* Enable Prefetch Buffer */
|
||||
FLASH->ACR |= FLASH_ACR_PRFTBE;
|
||||
|
||||
/* Flash 1 wait state */
|
||||
FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY);
|
||||
FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_1;
|
||||
|
||||
/* HCLK = SYSCLK */
|
||||
RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1;
|
||||
|
||||
/* PCLK2 = HCLK */
|
||||
RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1;
|
||||
|
||||
/* PCLK1 = HCLK */
|
||||
RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV2;
|
||||
|
||||
#ifdef STM32F10X_CL
|
||||
/* Configure PLLs ------------------------------------------------------*/
|
||||
/* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */
|
||||
/* PREDIV1 configuration: PREDIV1CLK = PLL2 / 5 = 8 MHz */
|
||||
|
||||
RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL |
|
||||
RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC);
|
||||
RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 |
|
||||
RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV5);
|
||||
|
||||
/* Enable PLL2 */
|
||||
RCC->CR |= RCC_CR_PLL2ON;
|
||||
/* Wait till PLL2 is ready */
|
||||
while ((RCC->CR & RCC_CR_PLL2RDY) == 0)
|
||||
{
|
||||
}
|
||||
|
||||
|
||||
/* PLL configuration: PLLCLK = PREDIV1 * 6 = 48 MHz */
|
||||
RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL);
|
||||
RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 |
|
||||
RCC_CFGR_PLLMULL6);
|
||||
#else
|
||||
/* PLL configuration: PLLCLK = HSE * 6 = 48 MHz */
|
||||
RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL));
|
||||
RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLMULL6);
|
||||
#endif /* STM32F10X_CL */
|
||||
|
||||
/* Enable PLL */
|
||||
RCC->CR |= RCC_CR_PLLON;
|
||||
|
||||
/* Wait till PLL is ready */
|
||||
while ((RCC->CR & RCC_CR_PLLRDY) == 0)
|
||||
{
|
||||
}
|
||||
|
||||
/* Select PLL as system clock source */
|
||||
RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW));
|
||||
RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL;
|
||||
|
||||
/* Wait till PLL is used as system clock source */
|
||||
while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08)
|
||||
{
|
||||
}
|
||||
}
|
||||
else
|
||||
{ /* If HSE fails to start-up, the application will have wrong clock
|
||||
configuration. User can add here some code to deal with this error */
|
||||
}
|
||||
}
|
||||
|
||||
#elif defined SYSCLK_FREQ_56MHz
|
||||
/**
|
||||
* @brief Sets System clock frequency to 56MHz and configure HCLK, PCLK2
|
||||
* and PCLK1 prescalers.
|
||||
* @note This function should be used only after reset.
|
||||
* @param None
|
||||
* @retval None
|
||||
*/
|
||||
static void SetSysClockTo56(void)
|
||||
{
|
||||
__IO uint32_t StartUpCounter = 0, HSEStatus = 0;
|
||||
|
||||
/* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/
|
||||
/* Enable HSE */
|
||||
RCC->CR |= ((uint32_t)RCC_CR_HSEON);
|
||||
|
||||
/* Wait till HSE is ready and if Time out is reached exit */
|
||||
do
|
||||
{
|
||||
HSEStatus = RCC->CR & RCC_CR_HSERDY;
|
||||
StartUpCounter++;
|
||||
} while ((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT));
|
||||
|
||||
if ((RCC->CR & RCC_CR_HSERDY) != RESET)
|
||||
{
|
||||
HSEStatus = (uint32_t)0x01;
|
||||
}
|
||||
else
|
||||
{
|
||||
HSEStatus = (uint32_t)0x00;
|
||||
}
|
||||
|
||||
if (HSEStatus == (uint32_t)0x01)
|
||||
{
|
||||
/* Enable Prefetch Buffer */
|
||||
FLASH->ACR |= FLASH_ACR_PRFTBE;
|
||||
|
||||
/* Flash 2 wait state */
|
||||
FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY);
|
||||
FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_2;
|
||||
|
||||
/* HCLK = SYSCLK */
|
||||
RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1;
|
||||
|
||||
/* PCLK2 = HCLK */
|
||||
RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1;
|
||||
|
||||
/* PCLK1 = HCLK */
|
||||
RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV2;
|
||||
|
||||
#ifdef STM32F10X_CL
|
||||
/* Configure PLLs ------------------------------------------------------*/
|
||||
/* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */
|
||||
/* PREDIV1 configuration: PREDIV1CLK = PLL2 / 5 = 8 MHz */
|
||||
|
||||
RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL |
|
||||
RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC);
|
||||
RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 |
|
||||
RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV5);
|
||||
|
||||
/* Enable PLL2 */
|
||||
RCC->CR |= RCC_CR_PLL2ON;
|
||||
/* Wait till PLL2 is ready */
|
||||
while ((RCC->CR & RCC_CR_PLL2RDY) == 0)
|
||||
{
|
||||
}
|
||||
|
||||
|
||||
/* PLL configuration: PLLCLK = PREDIV1 * 7 = 56 MHz */
|
||||
RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL);
|
||||
RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 |
|
||||
RCC_CFGR_PLLMULL7);
|
||||
#else
|
||||
/* PLL configuration: PLLCLK = HSE * 7 = 56 MHz */
|
||||
RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL));
|
||||
RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLMULL7);
|
||||
|
||||
#endif /* STM32F10X_CL */
|
||||
|
||||
/* Enable PLL */
|
||||
RCC->CR |= RCC_CR_PLLON;
|
||||
|
||||
/* Wait till PLL is ready */
|
||||
while ((RCC->CR & RCC_CR_PLLRDY) == 0)
|
||||
{
|
||||
}
|
||||
|
||||
/* Select PLL as system clock source */
|
||||
RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW));
|
||||
RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL;
|
||||
|
||||
/* Wait till PLL is used as system clock source */
|
||||
while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08)
|
||||
{
|
||||
}
|
||||
}
|
||||
else
|
||||
{ /* If HSE fails to start-up, the application will have wrong clock
|
||||
configuration. User can add here some code to deal with this error */
|
||||
}
|
||||
}
|
||||
|
||||
#elif defined SYSCLK_FREQ_72MHz
|
||||
/**
|
||||
* @brief Sets System clock frequency to 72MHz and configure HCLK, PCLK2
|
||||
* and PCLK1 prescalers.
|
||||
* @note This function should be used only after reset.
|
||||
* @param None
|
||||
* @retval None
|
||||
*/
|
||||
static void SetSysClockTo72(void)
|
||||
{
|
||||
__IO uint32_t StartUpCounter = 0, HSEStatus = 0;
|
||||
|
||||
/* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/
|
||||
/* Enable HSE */
|
||||
RCC->CR |= ((uint32_t)RCC_CR_HSEON);
|
||||
|
||||
/* Wait till HSE is ready and if Time out is reached exit */
|
||||
do
|
||||
{
|
||||
HSEStatus = RCC->CR & RCC_CR_HSERDY;
|
||||
StartUpCounter++;
|
||||
} while ((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT));
|
||||
|
||||
if ((RCC->CR & RCC_CR_HSERDY) != RESET)
|
||||
{
|
||||
HSEStatus = (uint32_t)0x01;
|
||||
}
|
||||
else
|
||||
{
|
||||
HSEStatus = (uint32_t)0x00;
|
||||
}
|
||||
|
||||
if (HSEStatus == (uint32_t)0x01)
|
||||
{
|
||||
/* Enable Prefetch Buffer */
|
||||
FLASH->ACR |= FLASH_ACR_PRFTBE;
|
||||
|
||||
/* Flash 2 wait state */
|
||||
FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY);
|
||||
FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_2;
|
||||
|
||||
|
||||
/* HCLK = SYSCLK */
|
||||
RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1;
|
||||
|
||||
/* PCLK2 = HCLK */
|
||||
RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1;
|
||||
|
||||
/* PCLK1 = HCLK */
|
||||
RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV2;
|
||||
|
||||
#ifdef STM32F10X_CL
|
||||
/* Configure PLLs ------------------------------------------------------*/
|
||||
/* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */
|
||||
/* PREDIV1 configuration: PREDIV1CLK = PLL2 / 5 = 8 MHz */
|
||||
|
||||
RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL |
|
||||
RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC);
|
||||
RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 |
|
||||
RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV5);
|
||||
|
||||
/* Enable PLL2 */
|
||||
RCC->CR |= RCC_CR_PLL2ON;
|
||||
/* Wait till PLL2 is ready */
|
||||
while ((RCC->CR & RCC_CR_PLL2RDY) == 0)
|
||||
{
|
||||
}
|
||||
|
||||
|
||||
/* PLL configuration: PLLCLK = PREDIV1 * 9 = 72 MHz */
|
||||
RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL);
|
||||
RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 |
|
||||
RCC_CFGR_PLLMULL9);
|
||||
#else
|
||||
/* PLL configuration: PLLCLK = HSE * 9 = 72 MHz */
|
||||
RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE |
|
||||
RCC_CFGR_PLLMULL));
|
||||
RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLMULL9);
|
||||
#endif /* STM32F10X_CL */
|
||||
|
||||
/* Enable PLL */
|
||||
RCC->CR |= RCC_CR_PLLON;
|
||||
|
||||
/* Wait till PLL is ready */
|
||||
while ((RCC->CR & RCC_CR_PLLRDY) == 0)
|
||||
{
|
||||
}
|
||||
|
||||
/* Select PLL as system clock source */
|
||||
RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW));
|
||||
RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL;
|
||||
|
||||
/* Wait till PLL is used as system clock source */
|
||||
while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08)
|
||||
{
|
||||
}
|
||||
}
|
||||
else
|
||||
{ /* If HSE fails to start-up, the application will have wrong clock
|
||||
configuration. User can add here some code to deal with this error */
|
||||
}
|
||||
}
|
||||
#endif
|
||||
|
||||
/**
|
||||
* @}
|
||||
*/
|
||||
|
||||
/**
|
||||
* @}
|
||||
*/
|
||||
|
||||
/**
|
||||
* @}
|
||||
*/
|
||||
/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/
|
||||
98
OpenSky/arch/stm32f1/device/system_stm32f10x.h
Normal file
98
OpenSky/arch/stm32f1/device/system_stm32f10x.h
Normal file
@@ -0,0 +1,98 @@
|
||||
/**
|
||||
******************************************************************************
|
||||
* @file system_stm32f10x.h
|
||||
* @author MCD Application Team
|
||||
* @version V3.5.0
|
||||
* @date 11-March-2011
|
||||
* @brief CMSIS Cortex-M3 Device Peripheral Access Layer System Header File.
|
||||
******************************************************************************
|
||||
* @attention
|
||||
*
|
||||
* THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
|
||||
* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
|
||||
* TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
|
||||
* DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
|
||||
* FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
|
||||
* CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
|
||||
*
|
||||
* <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2>
|
||||
******************************************************************************
|
||||
*/
|
||||
|
||||
/** @addtogroup CMSIS
|
||||
* @{
|
||||
*/
|
||||
|
||||
/** @addtogroup stm32f10x_system
|
||||
* @{
|
||||
*/
|
||||
|
||||
/**
|
||||
* @brief Define to prevent recursive inclusion
|
||||
*/
|
||||
#ifndef __SYSTEM_STM32F10X_H
|
||||
#define __SYSTEM_STM32F10X_H
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
/** @addtogroup STM32F10x_System_Includes
|
||||
* @{
|
||||
*/
|
||||
|
||||
/**
|
||||
* @}
|
||||
*/
|
||||
|
||||
|
||||
/** @addtogroup STM32F10x_System_Exported_types
|
||||
* @{
|
||||
*/
|
||||
|
||||
extern uint32_t SystemCoreClock; /*!< System Clock Frequency (Core Clock) */
|
||||
|
||||
/**
|
||||
* @}
|
||||
*/
|
||||
|
||||
/** @addtogroup STM32F10x_System_Exported_Constants
|
||||
* @{
|
||||
*/
|
||||
|
||||
/**
|
||||
* @}
|
||||
*/
|
||||
|
||||
/** @addtogroup STM32F10x_System_Exported_Macros
|
||||
* @{
|
||||
*/
|
||||
|
||||
/**
|
||||
* @}
|
||||
*/
|
||||
|
||||
/** @addtogroup STM32F10x_System_Exported_Functions
|
||||
* @{
|
||||
*/
|
||||
|
||||
extern void SystemInit(void);
|
||||
extern void SystemCoreClockUpdate(void);
|
||||
/**
|
||||
* @}
|
||||
*/
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif /*__SYSTEM_STM32F10X_H */
|
||||
|
||||
/**
|
||||
* @}
|
||||
*/
|
||||
|
||||
/**
|
||||
* @}
|
||||
*/
|
||||
/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/
|
||||
Reference in New Issue
Block a user