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EasyNet · 2022-01-05

Hi,I'm trying to build a software to retrieve data from an solar inverter.After I success to send data, it was the time to receive the data. I choose the method with DMA IDLE to receive data in a circular buffer.In this mode, after a lot of debugging...

EasyNet · 2022-01-07

Hi TDK,Thanks for the answer. I read the code and I applied.Because I'm using RTOS I'm chaning the code for the hard IRQ to add the chunks received in DMA ring buffers (for each USART I have a pair of 2 or more swapped buffers) that I will add them i...

EasyNet · 2022-01-05

Hi,For example if you have a DMA buffer of 16 bytes (giving a small amount of circular buffer, intentionally of course) the events are like this:Sending 10 charsAfter finishing the transmission an UART/USART IRQ is fired up and HAL_UARTEx_RxEventCall...

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UART/USART DMA IDLE Receive with unknow data

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