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/** ************************************************************************** * @file readme.txt * @brief readme ************************************************************************** */ this demo is based on the at-start board, in this demo, provides a basic communication between usart2 and usart3 using interrupt capability. if received data right, the three leds will blink. set-up - connect usart2 tx pin (pa2) to usart3 rx pin (pb11) - connect usart2 rx pin (pa3) to usart3 tx pin (pb10) for more detailed information. please refer to the application note document AN0099.