ThinkChat2.0新版上线,更智能更精彩,支持会话、画图、视频、阅读、搜索等,送10W Token,即刻开启你的AI之旅 广告
* Reading and writing the S3F series MCU using RT809F need to purchase the ICSP port board used by PIC series or DIY a port board to cooperate with RT809H.It need to connect 5 lines,which respectively is VPP program voltage(12.5V),VDD power supply 5V,GND,SDA data signal and SCL clock signal. * The users need to check the pin definition of MCU of certain version,and connect them with ICSP port board correspondingly one by one.If there are online read&write port on the target board,currently it can be connected directly and read or write on line. **Please remove the MCU and fly 5 lines to ICSP port board to read and write in the following situation:** * There is no reserved online read&write port on the board and VPP/RESET pin is used as common IO,connected with other circuit; * After connecting on line with ICSP,VPP voltage is lowered to be less than 12V; * When reading or writing on line goes wrong with ICSP(Because S3F series programming timing sequence require that VDD and VPP must both be controlled,but on some board card this 2 pins’ capacitance is too big,which makes the timing sequence unqualified,removing MCU,using socket or flying lines to read and write will avoid this problem)