dsp_exp_note.txt

使用ST7920做液晶控制芯片（如RT12864-3）的C++类实现

这是D12在枚举时请求的过程
Device  Phase  Data                                                Description       Cmd.Phase.Ofs(rep)
------  -----  --------------------------------------------------  ----------------  ------------------
  26.0  CTL    80 06 00 01  00 00 12 00                            GET DESCRIPTOR           1.1.0        
  26.0  DI     12 01 10 01  00 00 00 10  71 04 66 06  00 01 00 00  ........q.f.....         1.2.0        
               00 01                                               ..                       1.2.16       
  26.0  CTL    80 06 00 02  00 00 09 00                            GET DESCRIPTOR           2.1.0        
  26.0  DI     09 02 2e 00  01 01 00 80  01                        .........                2.2.0        
  26.0  CTL    80 06 00 02  00 00 2e 00                            GET DESCRIPTOR           3.1.0        
  26.0  DI     09 02 2e 00  01 01 00 80  01 09 04 00  00 04 dc a0  ................         3.2.0        
               b0 00 07 05  81 03 10 00  0a 07 05 01  03 10 00 0a  ................         3.2.16       
  26.0  CTL    00 09 01 00  00 00 00 00                            SET CONFIG               4.1.0