I am using ULINK to debug the LPC2132 board. They work well for some days. But now a problem appeared. Everytime I want to download code to FLASH, always get"Could not stop ARM device, please check your JTAG cable?" But JTAG can be detect on Option for device. I do not know what is wrong? Thanks in advance for any idea.
I just changed to another LPC2132 board, it works well. So it means something worong with trouble board instead of ULINK. The 2132 can be programmed by ISP and can run program when power on. IS the 2132 JTAG port damaged? I donot have idea what action cause it damage. Anyone has experience about it? thanks
have no experience with "your board" but have blown a JTAG or two by 1) hotplugging (takes many 'tries' to blow it that way) 2) missing ground between the two 'ends' Erik
And I probe every JTAG pin signal.Only RCLK has nothing happen. RCLK is necessary? thanks