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USCI的UART模式,写入程序通信,时而正常时而乱码



将程序代码写入开发板中,使用超级终端通信,开始时,键入字母乱码。重新写入再通信,正常。第二天再次写入通信,又没有任何反应。
硬件:MSP430G2开发板(g2553芯片) 软件:CCS v5.5 程序代码和超级终端在附件中,超级终端设置为默认