Which MC68HC908XK8 (Now PC Errors)

[brentp]

Both chips are the same, but if you have a V2.X board and a V3.x board, the MJLJ firmware is different.

If you didn't keep track of which processor came with which board, the safest thing is to re-program the 2.x firmware onto the 2.x board, and re-program the 3.x firmware onto the 3.x board.

Brent Picasso
MJLJ project & site admin

[MartinM]

---content deleted---

I posted, I got in the car, I drove home, I thought about what I posted, I realised it was completely misleading, I got home, I deleted it!

[tedzbug]

Ok....Now i get an error:

C:\MJ>hc08sprg COM1 mjlJunior_3.0.0.s19
Waiting for HC08 reset ACK...received 0xfc (good).
Can't read MCU info (forgot to set single wire mode?)

[tedzbug]

I have both chips because i originally bought the earlier board, then bought the late board and processor........ Now i am assembling and dont know how to tell them apart. One has an obvious
motorola logo on it.

the numbers on both chips are:

Motorola chip
MC68HC908
KX8CP 2L09H
CPAH0403

Other chip
MC68HC908
KX8CP 2L09H
CPAA0552

[brentp]

Troubleshooting the above:

Are you interrupting power after it sees the chip?
Have you tried a different serial cable?
Does it happen with the 2.x board and 3.x board?

[tedzbug]

the power was cut possibly while programming....... it sat forever (counting up) after it seemed to work uploading firmware. so i unplugged it

did i mess up the chip? do i need a new one? it worked before that.

[brentp]

Cutting the power during programming does not matter- the bootloader code is not touched during this process. I would just try again. If you still have problems, try the other suggestions-

Regards,
Brent

[tedzbug]

finally...... I plugged into my old laptop (the one i will program in-car with) and it had no problems with communication.

Flashed my chip. Ready to install in the car now.

Thanks for the help