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STM32L4+ : SRAM3 is powered off in Stop 2 mode 

By default, SRAM3 content is then lost.
pull/13558/head
jeromecoutant 2020-09-04 17:07:01 +02:00
parent 54f0f56eff
commit e650470206
2 changed files with 7 additions and 10 deletions
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4
targets/TARGET_STM/sleep.c
View File

@ -192,6 +192,10 @@ __WEAK void hal_deepsleep(void)
HAL_PWREx_DisableLowPowerRunMode();
}
#if defined(PWR_CR1_RRSTP)
HAL_PWREx_EnableSRAM3ContentRetention();
#endif
HAL_PWREx_EnterSTOP2Mode(PWR_STOPENTRY_WFI);
if (lowPowerModeEnabled) {

13
targets/targets.json
View File

@ -3287,11 +3287,7 @@
"device_has_add": [
"USBDEVICE"
],
"device_name": "STM32L4R5ZI",
"mbed_rom_start": "0x08000000",
"mbed_rom_size": "0x200000",
"mbed_ram_start": "0x20000000",
"mbed_ram_size": "0x40000"
"device_name": "STM32L4R5ZITx"
},
"NUCLEO_L4R5ZI_P": {
"inherits": [
@ -3305,6 +3301,7 @@
"inherits": [
"MCU_STM32L4"
],
"device_name": "STM32L4R9AIIx",
"supported_form_factors": [
"ARDUINO",
"STMOD",
@ -3327,11 +3324,7 @@
"device_has_add": [
"QSPI",
"USBDEVICE"
],
"mbed_rom_start": "0x08000000",
"mbed_rom_size": "0x200000",
"mbed_ram_start": "0x20000000",
"mbed_ram_size": "0x40000"
]
},
"MCU_STM32L5": {
"inherits": [