I am using an STM32L4 MCU and IAR Embedded Workbench. I noted that when I start a debug session in the register window the "write-only" bits of a certain register are field with the letter "w" (for example in GPIOx_BSRR). I was wondering if this is t...
Hello,I have an interrupt driven I2C which is working fine. I know that this is not very clean design but I need to execute few I2C transactions from a button interrupt handler (EXTI9_5_IRQn). I have set the priority of the EXTI9_5_IRQn 1 and the pri...
Hello developers, I have three custom pcbs. The heart of all pcbs is the STM32L151CCT6 µC in LQFP48 Package. I connected all supply pins (VLCD, VDDA, VDD_x to 3.3V; VSS_x to ground). The BOOT0 pin is connect to gnd with an 20k pull-down resistor. The...
I am working with the STM32F769 microcontroller and I need several timers. I think it's too risky to use the hardware timers extensively so I decided to use ONE hardware timer in its simplest form and then do more processing in software. However, the...
Dear community,I have setup a can-bus system between two devices where: the first transmits a message on button press using HAL_CAN_AddTxMessage, the other one receives the message using a callback interrupt. However, the following problem arises: on...
HiI'm using a STM32H753 with external SDRAM connected to FMC.I'm working with Keil and the compiler is armclang.This is my MPU configuration for the SDRAM (base address is 0xC0000000) :MPU_InitStruct.Enable = MPU_REGION_ENABLE; MPU_InitStruct.BaseAdd...
Hello,I want to trig the ADC using the PWM timer,The ADC would be triggered in the first event of the PWM "counter start".How to wait for the ending conversion using a while loop in the PWM isr.Could I read the ADC without using the DMA bus?I am usin...
Dear All,Am converting one code from HAL Library to SPL Library.In same am using SPI BUS , for it one of function is used which is as mentioned below:-" HAL_SPI_Transmit(&_W25QXX_SPI,pBuffer,NumByteToWrite_up_to_PageSize,100); "Same i wanted to conve...
Hello,I'm trying to get multi-buffer DMA on ADC working. I modified `HAL_ADC_Start_DMA` function to use `HAL_DMAEx_MultiBufferStart_IT`instead of `HAL_DMA_Start_IT.But for some reason, M0 Completion Callback is executed multiple times before switchin...
Rev. 5 of those RMs introduced dual-bank devices. According to "3.3.1 FLASH memory organization" the page numbers in bank 2 start at 256, which seems to be very odd as the PNB field in FLASH_CR has 10 bits, so one would expect 1024 instead.
