Good morning, I have created a PCB for ECG measuring using ADAS1000 and a dsPIC30F3013 as microcontroller. I use the same lines for programming the micro and to communicate through serial interface.
Is PGD/SDI (In-Circuit Serial Programming™ data input/output) and PGC/SDO (In-Circuit Serial Programming™ clock).
In a first phase I have programmed the micro without adding ADAS and It worked well, then the programming failed.
I have added a pull up resistor to CS to ensure that the device didn't interfere in the programming phase but this doesn' t seems to be the solution because I m not able to program the micro yet.
I can' t stand what could be the matter.
In the micro is running the previous version of the code correctly but obvioously I cannot update It.
Thanks in advance!