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I have programmed an LPC1768 to be nearly always in deep power down mode. It is waken periodically by an RTC alarm
Since I did this, I cannot reprogram the processor using the programmer included in Keil's microcontroller development tool kit.
What is the solution ?
Best regards
No, The pin is connected to its neighbour VddIO. So it is quite difficult to cut the connection temporarily. It is nearly as difficult as changing the micro.
Pb solved. After disoldering the NMI pin to add a pull up to Vdd and force it to Gnd at reset, I have been able to reprogram the uc.
Thanks for your help