Pickit3 trouble reading pic18

[Bullenb]

new to the forum but been having a nosey round and trying to read up. I have a kymco mobility scooter that needs the mileage correcting on as had a new head display.

I have a pickit3 and tried to read the chip (PIC18F87k90) but can’t get a good reading. I have attached a pic of the board. Can anyone point me in the correct direction of where the mclr is I have tried it in the 5 pin slot at the top.

MPLAB says it’s read it but when converting hex to bin it doesn’t show anything or says error. Does the board need an external power supply or is the pickit enough to power it?

Any help appreciated. Many thanks

[anawfulhoore]

that header on the pcb does look like the icsp port.. you will have to verify which pin is which with a multimeter and the datasheet.. if the ICSP port is present then the pickit should be enough to power it.. however you should use the standalone programming tool rather than mplab.. it will tell you whether the supply voltage is correct, whether it has identified the PIC correctly and you can choose which memory to read. It is very likely the flash and eeprom are protected - pickit and the config bits will tell you this..

Owen.