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stm32/modmachine: Support basic H7 MCU features.

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This commit is contained in:
iabdalkader 2018-02-23 18:54:09 +02:00 committed by Damien George
parent 0989e0cdff
commit d151adb791
1 changed files with 36 additions and 6 deletions
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42
ports/stm32/modmachine.c
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@ -59,6 +59,24 @@
#define RCC_CSR_PORRSTF RCC_CSR_BORRSTF
#endif
#if defined(STM32H7)
#define RCC_SR RSR
#define RCC_SR_IWDGRSTF RCC_RSR_IWDG1RSTF
#define RCC_SR_WWDGRSTF RCC_RSR_WWDG1RSTF
#define RCC_SR_PORRSTF RCC_RSR_PORRSTF
#define RCC_SR_BORRSTF RCC_RSR_BORRSTF
#define RCC_SR_PINRSTF RCC_RSR_PINRSTF
#define RCC_SR_RMVF RCC_RSR_RMVF
#else
#define RCC_SR CSR
#define RCC_SR_IWDGRSTF RCC_CSR_IWDGRSTF
#define RCC_SR_WWDGRSTF RCC_CSR_WWDGRSTF
#define RCC_SR_PORRSTF RCC_CSR_PORRSTF
#define RCC_SR_BORRSTF RCC_CSR_BORRSTF
#define RCC_SR_PINRSTF RCC_CSR_PINRSTF
#define RCC_SR_RMVF RCC_CSR_RMVF
#endif
#define PYB_RESET_SOFT (0)
#define PYB_RESET_POWER_ON (1)
#define PYB_RESET_HARD (2)
@ -80,15 +98,21 @@ void machine_init(void) {
reset_cause = PYB_RESET_DEEPSLEEP;
PWR->CR1 |= PWR_CR1_CSBF;
} else
#elif defined(STM32H7)
if (PWR->CPUCR & PWR_CPUCR_SBF || PWR->CPUCR & PWR_CPUCR_STOPF) {
// came out of standby or stop mode
reset_cause = PYB_RESET_DEEPSLEEP;
PWR->CPUCR |= PWR_CPUCR_CSSF;
} else
#endif
{
// get reset cause from RCC flags
uint32_t state = RCC->CSR;
if (state & RCC_CSR_IWDGRSTF || state & RCC_CSR_WWDGRSTF) {
uint32_t state = RCC->RCC_SR;
if (state & RCC_SR_IWDGRSTF || state & RCC_SR_WWDGRSTF) {
reset_cause = PYB_RESET_WDT;
} else if (state & RCC_CSR_PORRSTF || state & RCC_CSR_BORRSTF) {
} else if (state & RCC_SR_PORRSTF || state & RCC_SR_BORRSTF) {
reset_cause = PYB_RESET_POWER_ON;
} else if (state & RCC_CSR_PINRSTF) {
} else if (state & RCC_SR_PINRSTF) {
reset_cause = PYB_RESET_HARD;
} else {
// default is soft reset
@ -96,7 +120,7 @@ void machine_init(void) {
}
}
// clear RCC reset flags
RCC->CSR |= RCC_CSR_RMVF;
RCC->RCC_SR |= RCC_SR_RMVF;
}
void machine_deinit(void) {
@ -217,7 +241,7 @@ STATIC NORETURN mp_obj_t machine_bootloader(void) {
HAL_MPU_Disable();
#endif
#if defined(MCU_SERIES_F7)
#if defined(MCU_SERIES_F7) || defined(STM32H7)
// arm-none-eabi-gcc 4.9.0 does not correctly inline this
// MSP function, so we write it out explicitly here.
//__set_MSP(*((uint32_t*) 0x1FF00000));
@ -487,7 +511,11 @@ STATIC mp_obj_t machine_sleep(void) {
// select PLL as system clock source
MODIFY_REG(RCC->CFGR, RCC_CFGR_SW, RCC_SYSCLKSOURCE_PLLCLK);
#if defined(STM32H7)
while (__HAL_RCC_GET_SYSCLK_SOURCE() != RCC_CFGR_SWS_PLL1) {
#else
while (__HAL_RCC_GET_SYSCLK_SOURCE() != RCC_CFGR_SWS_PLL) {
#endif
}
#endif
@ -526,6 +554,8 @@ STATIC mp_obj_t machine_deepsleep(void) {
PWR->CSR2 &= ~(PWR_CSR2_EWUP6 | PWR_CSR2_EWUP5 | PWR_CSR2_EWUP4 | PWR_CSR2_EWUP3 | PWR_CSR2_EWUP2 | PWR_CSR2_EWUP1);
// clear global wake-up flag
PWR->CR2 |= PWR_CR2_CWUPF6 | PWR_CR2_CWUPF5 | PWR_CR2_CWUPF4 | PWR_CR2_CWUPF3 | PWR_CR2_CWUPF2 | PWR_CR2_CWUPF1;
#elif defined(STM32H7)
// TODO
#else
// clear global wake-up flag
PWR->CR |= PWR_CR_CWUF;