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ZYubi · 2019-03-11

/* Enable write access to Backup domain */ PWR->CR1 |= PWR_CR1_DBP; while((PWR->CR1 & PWR_CR1_DBP) == RESET) { } /*Enable BKPRAM clock*/ __HAL_RCC_BKPRAM_CLK_ENABLE(); *(__IO uint32_t*)(0x38800000+36) = 12345678;run to here, DATA 12345678 is writt...

ZYubi · 2019-02-21

void ADC3_config(void){ AdcHandle.Instance = ADC3; if (HAL_ADC_DeInit(&AdcHandle) != HAL_OK) { /* ADC de-initialization Error */ //Error_Handler(); } AdcHandle.Init.ClockPrescaler = ADC_CLOCK_SYNC_PCLK_DIV4; /* Synchronous clock mode,...

ZYubi · 2019-02-15

I can't the way in Demo samples.

ZYubi · 2019-02-01

Used to make source code for USB FS Virtual Com, the computer can't connect the device。Same way on STM32F407 chip, it is OK.Is there somebody can help me? Thanks!

ZYubi · 2020-02-18

struct { dma_rx[128]; dma_tx[128];} nochache __attribute__ ((aligned (256))); MPU->RBAR = ((uint32_t)&nocache) | MPU_RBAR_VALID_Msk; // using region slot 0 MPU->RASR = MPU_RASR_XN_Msk | // 1: Instruction fetches disabled (3u << MPU_...

ZYubi · 2020-02-18

If change the size of dma_rx & tx to 128, How do it?

ZYubi · 2019-03-11

/* Enable write access to Backup domain */ PWR->CR1 |= PWR_CR1_DBP; while((PWR->CR1 & PWR_CR1_DBP) == RESET) { } /*Enable BKPRAM clock*/ __HAL_RCC_BKPRAM_CLK_ENABLE(); *(__IO uint32_t*)(0x38800000+36) = 12345678;12345678 can be written in BACKUP RA...

ZYubi · 2019-03-11

I met a problem,The Backup SRAM can read and write,but can't keep DATA when reset the MCU.

ZYubi · 2019-03-11

VBAT is OK. I used the ADC3 to measure the voltage of VBAT, the value is about 3V.

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Re: I can not use backup RAM for STM32H743BI. Is there any application note or source code for backup RAM.

Re: I can not use backup RAM for STM32H743BI. Is there any application note or source code for backup RAM.

Re: H750VBT6 BKPSRAM can't keep DATA