Write the VID / PID to 0x04B4 / 0x1004 in the EEPROM of the USB development board.

dengsheng

The firmware program has been prepared and the host computer program has been prepared. The last step in the development of the EZ-loader device driver is to write the PID / VID to the serial EEPROM of the USB development board, and then plug the development board again. Prompt to find new hardware? The heroes lend a helping hand, thank you first.

pandorasyl

The device will first check what data is in front of the EEPROM, and if it is different, it will perform different operations. Have you set it up yet?

dengsheng

I write the VID/PID value of C0 B4 04 04 10 01 00 into the serial EEPROM of the USB development board, using Vend_Ax.hex of the EZUSB control panel; VID/PID 0x04B4/0x1004 corresponds to the one before the firmware download Device driver. Please think about it for me, thank you.

pandorasyl

If the EEPROM starts with C0, the program will be read from RAM for execution (the PC just downloaded it), if it is C2, the program will be read from the EEPROM and executed, and the program needs to be burned into the EEPROM first.
If the PC can't find the hardware now, it may be that things in the EEPROM are messed up. First, unplug the EEPROM, then plug in the PC, the PC can be found, then plug in the EEPROM with power, and download an EEPROM content recovery The program is just fine.

撒哈拉蚂蚁

Make sure your PID VID is two bytes? All I encountered are 4 bytes