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stm32/main: Use defined constants to enable N6 clocks during low power.

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Use constants from the HAL instead of literal numbers to select which
peripheral clocks are enabled during low power mode.

Signed-off-by: Damien George <damien@micropython.org>
This commit is contained in:
Damien George
2025-09-17 11:41:59 +10:00
parent 8d04f5da7d
commit ec1bfcfbb7
1 changed files with 8 additions and 6 deletions
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14
ports/stm32/main.c
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@@ -400,19 +400,21 @@ void stm32_main(uint32_t reset_mode) {
#if defined(STM32N6)
// SRAM, XSPI needs to remain awake during sleep, eg so DMA from flash works.
LL_MEM_EnableClockLowPower(0xffffffff);
LL_MEM_EnableClockLowPower(LL_MEM_AXISRAM1 | LL_MEM_AXISRAM2 | LL_MEM_AXISRAM3
| LL_MEM_AXISRAM4 | LL_MEM_AXISRAM5 | LL_MEM_AXISRAM6 | LL_MEM_AHBSRAM1 | LL_MEM_AHBSRAM2
| LL_MEM_BKPSRAM | LL_MEM_FLEXRAM | LL_MEM_CACHEAXIRAM | LL_MEM_VENCRAM | LL_MEM_BOOTROM);
LL_AHB5_GRP1_EnableClockLowPower(LL_AHB5_GRP1_PERIPH_XSPI2 | LL_AHB5_GRP1_PERIPH_XSPIM);
LL_APB4_GRP1_EnableClock(LL_APB4_GRP1_PERIPH_RTC | LL_APB4_GRP1_PERIPH_RTCAPB);
LL_APB4_GRP1_EnableClockLowPower(LL_APB4_GRP1_PERIPH_RTC | LL_APB4_GRP1_PERIPH_RTCAPB);
// Enable some AHB peripherals during sleep.
LL_AHB1_GRP1_EnableClockLowPower(0xffffffff); // GPDMA1, ADC12
LL_AHB4_GRP1_EnableClockLowPower(0xffffffff); // GPIOA-Q, PWR, CRC
LL_AHB1_GRP1_EnableClockLowPower(LL_AHB1_GRP1_PERIPH_ALL); // GPDMA1, ADC12
LL_AHB4_GRP1_EnableClockLowPower(LL_AHB4_GRP1_PERIPH_ALL); // GPIOA-Q, PWR, CRC
// Enable some APB peripherals during sleep.
LL_APB1_GRP1_EnableClockLowPower(0xffffffff); // I2C, I3C, LPTIM, SPI, TIM, UART, WWDG
LL_APB2_GRP1_EnableClockLowPower(0xffffffff); // SAI, SPI, TIM, UART
LL_APB4_GRP1_EnableClockLowPower(0xffffffff); // I2C, LPTIM, LPUART, RTC, SPI
LL_APB1_GRP1_EnableClockLowPower(LL_APB1_GRP1_PERIPH_ALL); // I2C, I3C, LPTIM, SPI, TIM, UART, WWDG
LL_APB2_GRP1_EnableClockLowPower(LL_APB2_GRP1_PERIPH_ALL); // SAI, SPI, TIM, UART
LL_APB4_GRP1_EnableClockLowPower(LL_APB4_GRP1_PERIPH_ALL); // I2C, LPTIM, LPUART, RTC, SPI
#endif
mpu_init();