STM32 MCUs Products
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USART DMA Problem
I' using USART1 to send and receive DMA with a module. When I configure DMA for one of TX or RX, it works fine. but when I configure it for both TX and RX, in RX-Buffer I have '\0' character in second position. for example the receive buffer is so:"...
I am using B-L475E-IOT01A1. I'm using B-L475E-IOT01A1 now. I want to do DAC. When I only operate DAC, it works well. However, when using DAC with TIMER and DMA, it does not work. Board itself doesn't work?
I want to generate sine wave using DAC, TIMER, DMA.When TIMER do update event, Board makes DAC output.Please Help me.
I want to use CCMRAM in 407. Is there a possibility of getting malloc to allocate CCMRAM instead of regular RAM? I changed the linker script to put stack and heap in CCMRAM but the issue is CCMRAM clock has to be enabled before any call takes place.
To overcome this problem I modified the start up assembly file by enabling the clock (AHB1ENR bit 20) at the very beginning. The program which was freezing before enabling the clock started working but stops/freezes after executing a few C statements...
Resolved! How can I debug TIM1 triggering a DMA from ETR2 if it isn't working?
On an L412KB Nucleo, I configured TIM1 to use ETR2 as a clock source and set the counter period to 1 so that every time a rising edge occurs on the TIM1_ETR pin occurs, it should trigger a DMA. I set up DMA1/Ch6 to respond to TIM_UP for a byte sized ...
how to write in external flash memory with stm32l4?
HII am using stm32l496 and want to use external flash memory MX25R6435F .Although this memory has 64 MB of memory, I set it to 8 MB in the ioc file and mx25r6435f library, but when I write in that string or character, it is not written correctly and ...
Since the PIN of STSPIN32F0 is not enough, it is implemented to view log messages using PA14 (SWD_CLK) as UART.
Since the PIN of STSPIN32F0 is not enough, it is implemented to view log messages using PA14 (SWD_CLK) as UART.But after that, I can't download it, so please inquire.1. Could you explain that re-download the MCU in this state?2. I don't have any PI...
Resolved! STM32H7 cache and DMA transfer error rate.
Hi.It seems, that sometimes data in cached memory is corrupted.DMA transfer data from SPI to SRAM2 (0x30000000). I use ping-pong buffer in SRAM2 (two similar buffers). Data processing performing for first part of the buffer in thread, while second it...
Resolved! QSPI from Dual to Single flash mode
Hello, I tried to start QSPI working on a Single flash mode but have a problem with non readable part config registers (NonVolatile, Volatile and Enhanced Volatile). As I understand when working in Dual Flash mode this registers should write and read...
