Dear All, Thank you!!!
I have too many boards that has the lpc2103. but problem is that, out of 100 boards 52 boards has the problem of programming failure. I am using ULINK2 20 wire JTAG programmer for programming LPC2103. I am using voltage supply from board which is 3.3 Volt. 48 boards programmed and tested. please give me the suggestions.
My Check points: 1. Measured Vcc = 3.3 V DC. 2. Crystal Frequency: 12 Mhz 3. Pin no 27(DBGSEL) of LPC2103 is bounded to 3.3 volt by using jumper. 4. TRST, TMS,TDI,TDO pulled high through 10K resistors. 5. TCK, RTCK pulled low through 10k resistors.