STM32 MCUs Products
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Proper standby mode enter and exit
Hello,I am trying to properly implement the standby mode entry routine on an STM32L0 MCU. I have this exemplary minimum working example that does not work as expected:/* USER CODE BEGIN 2 */ HAL_GPIO_WritePin(LD2_GPIO_Port, LD2_Pin, GPIO_PIN_SET)...
On STM32H7, can DMA access generate an ECC error ?
Hello,I am currently working with stm32H743 processor.I wanted to know if DMA access can trigger an ECC error or only the core can generate these errors.For example if there is a ram data protected by ECC with a double bit error, would a DMA access t...
Resolved! STM32H745: shared memory with different content on different cores
In debug mode, I see the following on CM7: At the same time I see the following on CM4: How is this possible if I have turned cacheability off?MPU_Region_InitTypeDef MPU_InitStruct; /* Disable MPU */ HAL_MPU_Disable(); // Configure SRAM2 as non-c...
HAL_UART_Receive_IT() returns BUSY and no longer receiving any interrupts
I am continuously calling HAL_UART_Receive_IT(), until i get some specified value in receiver buffer. But after some time HAL_UART_Receive_IT() return BUSY and after that it is not receiving any further interrupts and seems like the code is dead. H...
Resolved! STM32F411CEU chip Revision Codes ?
Hi, What are the revisions of the STM32F411CEU6 chip?The ERRATA doc from STM mentions only revision "A" . Are there other revisions?I received board with revision "1" .
Resolved! schematics for microSd on SDMMC
Hello,Do you have schematics suggestion for using a microSD on the SDMMC interface of the STM32L476? The reference manuel only shows data with 8 lines while the microSD has only 4 lines with data3 share with card detect.Do I only need to ignore the c...
documentation
hello dear. I opened the documentation for stm32H7xx and am trying to calculate the address. I don't understand what it means?Address offset: 0x3DCh-0x3EChwhat should I add to the base address?0x40017400how to understand and read it?Address offset: 0...
How to install "valgrind" tool in rootfs of uclinux of stm32?
Hi Team,I have tried using kmenuconfig and bmenuconfig, didn't find the tool. And other way i tried to install using github, but didn't succeed. Can you please guide me.Waiting for your response.Thanks in advance.
I2C blocking function fails to output the expected outputs
I'm currently trying to learn about how the HAL blocking functions of I2C works on the STM32H7B3I-DK. However, the master device fails to receive any data unless HAL_I2C_Master_Transmit() is called before it.For example, the following code doesn't pr...
