hello, ADUC7026 on my custom designed board doesn't respond to JTAG rendering the whole board useless. The board worked for number of days before breaking and I could download the firmware as I wished.
The Keil IDE reports no JTAG Device found. Has any one seen this sort of behaviour before ?
Any one any ideas ? I would be very grateful. Thanks a lot...
Hi, I found the cure so thought just post it out so some other soul could benefit from it. the MCU can be recovered by using serial download utility provided by analog devices however the trick is Sin and Sout are configured by default on P1.0 and P1.1 so if you are using any other config in your system it wont work(which happened with me initially). I am surprised that this serial download port I/O config is never mentioned in datasheet or else where on ADI website. Thanks