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Topic: USART with PDC (DMA). (Read 177 times) previous topic - next topic


I have a project, where  I need an array of bytes send repeatedly over BT. For now I'm using Serial_1 , and it takes ~10 milliseconds to transmit 500 bytes at 460.800 ksps. 
So, idea to switch serial in  PDC mode  looks only an option if I need send more in less time.
I couldn't find a library, probably it doesn't exist yet,  so I tried to do some experiments, and all works well except one things, USART0_Hanler().  Compiler reports dublicate in variant.cpp

Here is a question:
Code: [Select]
void USART0_Handler(void)
I commented out this function, is there a better, clean way to "loose" one of the serial in arduino environment?

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