Service manual

4. Use ISP to program MCU
4.1 elect MTV type first, load the binary or Intel hex file that you want to program into the MCU, and select
Auto item, then press RUN button, see Fig 4.1.
4.2 f user changes the MTV type, it must load file again, or the buffer of load file will be cleared.
4.3 RC (cyclic redundancy check): the host can check CRC registers result instead of reading every byte in flash.
The message of Check MCU CRC OK means that the Host verify ok for the progress of program.
Fig 4.1
ViewSonic Corporation
27
VG2021m-1 Confidential - Do Not Copy