Ask questions, find answers, and share insights on STM32 products and their technical features.
Hello, I am working on SDMMC ReadBlock function using DMA with peripheral flow control enabled. When I try to transfer 512 Bytes block from the SD Card, I have last 3 DWORDs "mising" (CNDTR is 0xFF82 instead of expected 0xFF00). These DWORDs are tra...
Hi, I have several boards with same issue. After weeks of tests when flashing boards using STLink suddenly the micro is not running except in SWD debug mode. Flash is properly programmed but the micro is not running. A complete flash erase (all sec...
In a project I need to use an eeprom, I download st-s eeprom library for stm32f0xx ( AN4061 ). The provided example in keil mdk v4 had no errors however after I imported the eeprom.h and .c file in my own project in keil mdk v5 I started having probl...
First I thouht that problem in code generation from Cube, rewrote all in CMSIS, but nothing changed. I2C using only as a "slave", but after generation "start" and sending addres (0x70) + write no interrupt flags is set. Where my mistake?Initialisatio...
I am using stm32l432kc nucleo Board.Is there any option for data retain when power is turned OFF ( Non-volatile memory Type).If yes can you please share the details and sample codes
Hello Everyone,I am currently using STM32F7XXX eval board.I wanted to interface a external battery, which can power up the board.Can anyone suggest on How to proceed on this? As I am new learner.Thanks in Advance.
I have a requirement to generate two PWM signals on an STMF030 MCUPWM1: 3-5kHz, 40-60% duty cyclePWM2: >40kHz, 1-100% duty cycleI need to combine these two PWM signals, using logic AND, into one (modulated) PWM output, like so:The signals could be co...
I have tried using the HAL_I2C_Master_Transmit_DMA and HAL_I2C_Master_Receive_DMA functions to access an external I2C slave but I find that this takes a fair amount of processing time. I am using a STM32L476R M4 core device. Using a GPIO I measure th...
