hemanteda
Member level 1
Hi everyone,
I've been trying to build a USB connected board which uses a PIC18F2550 (I-SO) to capture IR (using a TSOP1738). The prototype that I built and tested worked fine (both software and hardware). I then designed the PCB and its not working! The device doesnt get properly detected, I get an "unknown device" or no device at all. Its a simple circuit and I've been going over it again an again failing to find the error. Could someone help me spot the problem? I am able to connect and program using PICkit2 (ICSP connector). The board doesn't work even when remove the MAX232 and TSOP.
I've been trying to build a USB connected board which uses a PIC18F2550 (I-SO) to capture IR (using a TSOP1738). The prototype that I built and tested worked fine (both software and hardware). I then designed the PCB and its not working! The device doesnt get properly detected, I get an "unknown device" or no device at all. Its a simple circuit and I've been going over it again an again failing to find the error. Could someone help me spot the problem? I am able to connect and program using PICkit2 (ICSP connector). The board doesn't work even when remove the MAX232 and TSOP.
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