This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TMS320F28377D: TMS320F28377D SCI更新程序

Part Number: TMS320F28377D

使用28377D的SCI boot0更新程序功能,这样会使用GPIO84(发送)和GPIO85(接收)引脚,上电时需要GPIO72为低电平,GPIO84为高电平,测试时发现上位机正常连接,DSP返回的数据不对,怀疑是DSP发送时需要操作GPIO84引脚,该引脚又同时是启动选择位,DSP重新启动了原来下载好的程序,造成失败。