Other Parts Discussed in Thread: BQSTUDIO, , BQ40Z80
Hello everyone,
i have a big issue with my BQ40Z80EVM-020 and I hope someone can help me. At the beginning the board got automaticly detected from BQStudio and I was able to refresh the register, but in some cases the error message "No acknowledge from device" appeared. So I updated the firmware like it is recommended in the User's Guide. Unfortunately the update was abborted and an error message appeared. Since then nothing worked anymore. The device won't be detected automaticly, showing "0_0_0" as detected device. When I try to refresh the register it says "No acknowledge from device" and for a very short time it says "Packet checksum mismatch". When I try to load the new firmware again it says "Program Srec: Data flash checksum calculated from srec does not match checksum returned from device after programming". A binary comparison of the file from the device and the file from the firmware update shows that they have nothing in common and if I read the word "0D" in the Advanced Comm SMB screen it response with "0x9201".
In the ZIP-File there is the SREC-File exported from the Device (FromDevice.srec) and the firmware downloaded from TI (bq40z80_v0_04_build_5.srec).
Any ideas to solve my problem or is the BQ40Z80 not recoverable?
Kind regards
Benedikt