Hi all, i am using MCB 2140 board for ARM7. Although driver is installed for ULINK,when i start debugging the program it will show JTAG communication failure? cam someboady help me on this problem?
Same problem with my uncle's board MCB2140 using ULINK2. Communication with ULINK2 debuger is seems to be working. I get info about debuger when it is disconnected from board. I couldn't even use LPC2000 flash utility. Just after i've cleared flash with Hyper Terminal as described here I've finnaly got communication with LPC2000 Utility. But i still can't use Ulink2. Please Help. My current jumper layout is: All jumpers are closed except J1 and J8. Is this correct?
try at JTAG frequency less than 200KHz.....
Does this help?
http://www.keil.com/support/docs/2993.htm
You should be able to recover a mis-programmed device (even when it is from your uncle).