hi Guys,
I have a question. I designed a JDM programmer from OLIMEX website for PIC microcontrollers. However, It is not in working conditin. I used ICProg and PICpgm to program the PIC16F877A but unfortunatly none of these software detect the PIC. I thought that poor soldering could be a reason. However I checked all my connections and my soldering was good. I also cheked by Vdd and it shows 5Volts on it. my PGM and Vss pins are both at 0Volts. and my LED is glowing as well when programmingg. I also checked clock and data pins and both these pins show around 2.5V on digital multimeter. my MCLR pin has also 13Volts on it. It seems that all my circuitry is done well. But still boht programs ICProg and PICpgm gives error on programming hte device. Can som one please help me with this, I am completly stuck and dont know what to do.
thanks
Sumair
I have a question. I designed a JDM programmer from OLIMEX website for PIC microcontrollers. However, It is not in working conditin. I used ICProg and PICpgm to program the PIC16F877A but unfortunatly none of these software detect the PIC. I thought that poor soldering could be a reason. However I checked all my connections and my soldering was good. I also cheked by Vdd and it shows 5Volts on it. my PGM and Vss pins are both at 0Volts. and my LED is glowing as well when programmingg. I also checked clock and data pins and both these pins show around 2.5V on digital multimeter. my MCLR pin has also 13Volts on it. It seems that all my circuitry is done well. But still boht programs ICProg and PICpgm gives error on programming hte device. Can som one please help me with this, I am completly stuck and dont know what to do.
thanks
Sumair