/**
**************************************************************************
* @file readme.txt
* @brief readme
**************************************************************************
*/
this demo is based on the at-start board, in this demo, provides a description
of how to use a dmamux genertor channel send dma request to transfer a halfword
data buffer memory to another halfword data buffer in embedded sram. dma2 channel4
is configured to transfer the contents of a 16-halfword data buffer stored in
embedded sram memory.pa1 is input trigger signal for dmamux genertor channel1,
genertor channel1 will send four dma request when the rising edge of pa0.when
all data transfered, the three leds will turn on.
for more detailed information. please refer to the application note document AN0103.
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