Ask questions, find answers, and share insights on STM32 products and their technical features.
Hello All,I recent implemented a DMA transfer for SD card data to RAM (technically an external SDRAM) on the STM32F765VI. Previously we had been using an IT transfer. In other words, we are now using SDCard_WriteBlocks_DMA rather than SDCard_WriteBlo...
why is it equivalent to the use of global variables, the address will not change.
Hi community,I am trying to get timer3 to trigger on a rising edge, run for one 10ms pulse and then stop until it is next triggered. Application is AC phase control for a simple SCR circuit with 2 optos. I nearly have it working, but essentially, it ...
I had a board that I was debugging, and all was going swimmingly. Then I started getting an 'unable to connect' message while debugging. I didn't touch the hardware, nothing had changed. So I thought.To make a long story short, I had enabled the f...
Hi, I want to send a sequence of data on a 16 GPIO bus with a linked-node MDMA setup. How do I set the transfer frequency? I have set up LPTIM1 to have the required clock, but I can't find a way to force the MDMA to have this clock control the output...
All,I am getting an issue when attempting to write to the SD card using a DMA burst transfer. I am transferring bytes to words in burst sizes of 16 beats to 4 beats respectively. I am using the full FIFO and direct mode is disabled. Memory is increm...
Hello,I am having issues with using the DMA to transfer SD card data to RAM. This may have to do with my configuration settings, because the FIFO error register is automatically set when I configure the SD card DPSM (not when I enable the DMA configu...
Hello:Previously using CMSIS, I was able to read or read/write this accelerometer device. Using HAL, I am having some problems. To start, I am trying to read the ID register. I am writing in the address and a dummy byte. The address for the ID regist...
I am currently working on a project for a Battery Management System. For this I need to communicate with the rest of a car via CAN. However, my CAN has strange behaviour when sending messages. When I try to send a message at 4Hz (so not fast at all),...
Good morning,I have a problem with the adc converter of the microcontroller stm32L053. I am in the prototype state and am using the Discovery Board.I only have the analog AN0 pin connected to ground. When I execute the reading the converter does not ...
