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STM32F205 USART2 Long zero level in tx transmitting

I use USART2 for connect whith gsm module.When trafic is big enough some byte in transmitting from cpu to modem can be corrupted.It may be happen one time in few minutes.I see corrupted byte by signal analisator. And the same corruption i see on the ...

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extra byte in front of USART buffer received with DMA

I have inherited code that received 1400 bytes over a 2mbps serial link. I've increased that to 1892 bytes and on occasion (not always, but frequently enough to be annoying) I receive my buffer "shifted" by one byte and a garbage byte for byte 0 in t...

RPhil by Associate
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DMA stop working after a sucessful receiving data USART.

In a noisy media, I need to receive 10bytes with DMA (about 1Mb). I have set the DMA and its interrupt as shown below:void DMA_Configuration(void) { DMA_InitTypeDef DMA_InitStructure;   RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE);      ...

parisa by Senior
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  • 9 replies
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IoTA2+F413H

Hi everyone!i have an issue with communication! As shown below, when I press the green button I want to toggle led on the IoT board & when it’s the red I want to toggle WiFi ble led( I didn’t find an other user led)if i press the red button it works ...

idrissmc by Associate III
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