Resolved! Calculate ARR value for Timer TIM2, TIM3 in STM32F407
HiCan you tell me how I can calculate a value for ARR for timer 2(32bit timer) and timer3(16bit timer)I am using STM32F407 APB1 timer clock is 12MHz prescaler is 6
Forum Posts
Reset product state to open by firmware with mass erase
Hello.Is it possible to reset the product state from closed to openinternaly by the firmware on a STM32H563?Can i do this easy by rewriting the ProductState to 0xED, or do i need additional provision information or the provisioning password to do thi...
Resolved! How to properly handle FDCAN TX FIFO
Hello,I have a STM32G431KB on a custom PCB and got the CAN bus to work. The only problem I have is that the TX FIFO is always filling up and the bus stops after 127 errors.The workaround I have is to abort the TX request./* Add message to Tx FIFO */ ...
I need to format the memory before fx_media_open will work
I'm developing a custom board with an STM32U5 MCU and a MX25UM51245 NOR flash memory. I'm building upon this example, which works flawlessly, but I don't want to format the memory every time the code runs. To achieve this, I disabled the Driver calls...
Resolved! I2C spuriously not working after NRST reset on STM32L4 requires reprogramming
Hello everbody,I'm using the STM32L4KC Nucleo board. Accidentially I discovered something that I cannot understand so far.I have a small application that is reading sensor data on I2C. So far everything works. When I cause by purpose some interrupts ...
STM32 and IAP
Hello, I have been trying to implement IAP in my device. But my code gets stuck in "UART_WaitOnFlagUntilTimeout". For once I was able to transfer the binary file of the new user application but later whenever I am trying to send the binary file it is...
SPI Miso data out of sync
I have an optimized SPI Slave DMA setup which is driven by the chip select interrupt. It looks something like: int main(void) { // Initialize SPI SLAVE, SPI_DATASIZE_8BIT, SPI_DIRECTION_2LINES HAL_SPI_TransmitReceive_DMA(hspi, (uint8_t *)&spi...
STM32H743 i2c TC status not consistent with the reference documentation
hi allI have a weird operation on the I2C2 in STM32H743ZI cpui am sending 2 bytes to a I2c slave PCA9536DP, address= 0x41the operation works and the slave IC did toggle the outputs BUTat the end of the I2C2 transfer, the TC bit did not set even thou...
STM32L010R8 Interrupt Vector Mapping from Boot Area to App area
We need support with the interrupt vector mapping for the STM32L010R8 SoC, specifically from the Boot area to the Application area (Flash/SRAM). We are currently developing a custom boot loader for the STM32L010R8 series and are not using the ROM-bas...
SPI DMA on STM32L562
Hi everyone,I'm working with the STM32L562 microcontroller and need to set up communication with the ADS8684 using SPI DMA. I am using SPI2, with the following pin configuration:PC1 for MOSIPC2 for MISOPA9 for SCLKPB12 for NSSCould anyone guide me on...
