Programming Failed!

 Programming Failed!

I am using STR750/Keil development kit. The JTAG programmer I am using is ULINK2. uVision3 Ver. 3.0.
Today I have problem to download program to the starter kit. It said "Erase Done, Programming Failed!".
I've tried two starter kits and same thing happened. Howerever, when I downloaded the program to my custom board, everything is okay. So ULINK2 should work fine.

I don't know what happened to the Keil Board. I checked the voltage, it was 3.3V. Anybody here has the clue. Thanks.

By the way, I tried to operate the UART, but I could not see the signal out from the port. I wonder whether Keil can provide some example codes.

Thanks again.
Fei

 RE: Programming Failed!

Can you try to recover your device.

See: http://www.keil.com/support/docs/3255.htm

 RE: Programming Failed!

The problem is still there.

When I click "Flash" manu then click "Erase", it got "Full Chip Erase Failed".
When I click "Flash" manu then click "Download", it got "Erase Done" and "Programming Failed".

Actually, I have two STR750/Keil evaluation boards. The second one gave me errors of "Programming Failed with too many differences".

I wonder what happened to the boards. Keil provides such unreliable board or ST's chip is so vulnerable?

 RE: Programming Failed!

The manufacturer of a board can not affect how many times you can write to the flash memory of a chip. All the board manufactorer can do is make sure all signals and voltages are within specifications.