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.
外接键盘通过SPI传输数据实现向dsp中写入数据，同时读取dsp中的数据显示在键盘的数码管上，请问有没有这方面的参考资料？下图是键盘外观图以及部分原理图
