According to the data sheet, sec 3.13.3 says the VBAT voltage is measure by the ADC as VBAT/3, or one third Vbat.using : uint64_t volt = (uint64_t)(((uint64_t)3300U*adc_result)/(uint64_t)4095U);I get 2/3 VbatChanging to uint64_t volt = (uint64_t)(((...
I wrote a simple LED blink program using STM32F767zi board. It works properly when I use STLink debugger. but the problem is when I remove the STLink and connect the board directly to an external power source, the code does not execute until I manua...
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...
