QG8 on USBSPYDER Problem

[Amey]

Hello All,

I am working on  a Universal infrared receiver using QG8.

As VCC i have dropped 5V to 3.6V using 2 diodes in series. The output pin PTAD1 drives  a relay through a transistor.

The transistor turns on when the code is run through USBSPYDER and subsequently turns OFF also, as intended. But when i connect my circuit to independent 3.6V(which i generate from 5V), the transistor turns ON but it never responds after that. Is this something related to RESET? i have disabled COP.

Kindly help me as always.

Thanks and Regards,
Ameya

[Problem99]

You should try to use a voltage regulator instead of series diodes (e.g. fixed 3.6 volt output, low drop, like LP2981).

Please write again, if problem persists.

Klaus