How to transmit/receive a bitstream?

Hi,

My ST32F103ZE needs to send and receive a serial bitstream to control some led display. I wrote a driver that simply controls a single GPIO port.

My question is: can I use the DMA controller in the ARM uC combined with some peripheral that will do the job for me?

(For example: I allready managed to use a USART with DMA).

Thanks

Henk

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