Microchip CURIOSITY LPC development board DM164137 ：What should I do if the PKOB fails to program the MCU?
The on-board PICkit (PKOB) of the Curiosity LPC development board uses Low-Voltage Programming (LVP). MPLAB X IDE and MPLAB Xpress automatically set the LVP bit in the configuration word to “1” to support low-voltage programming.
Key Issues and Solutions:
Requirements for Using Custom Firmware
The LVP bit in the configuration word must be set to ‘1’. If this bit is not correctly configured, MPLAB X IDE cannot program via PKOB.
Handling PIC Microcontrollers Programmed via High Voltage
If a PIC microcontroller (not standard with the development board) has been programmed via high voltage and the LVP bit is cleared (LVP = OFF or ‘0’), PKOB will fail to recognize the device, leading to programming errors. In this case, reprogramming can be achieved through two methods:
a) Using a PICkit™ 3 Programmer
- Connect the PICkit 3 to the PIC device’s dual-row expansion header, ensuring correct connections for ICSP™, GND, and VDD.
- Configure MPLAB IDE to use the PICkit 3 as the programming tool, ensure the LVP bit in the configuration word is set to ‘1’, then reprogram the device.
b) Using an Unprogrammed (Blank) Device
- Use an unprogrammed (blank) device and ensure the LVP bit in the configuration word is set to ‘1’.
More content:
More information related to Microchip CURIOSITY development boards:
- Microchip CURIOSITY Development Boards: Selection Guide
- Microchip CURIOSITY LPC development board : What hardware does it have?
- Microchip CURIOSITY LPC development board : How to quickly get started ?
- Microchip CURIOSITY ：What should I do if the PKOB fails to program the MCU?
- What should I do if the MPLAB PICkit 4 On-Board Tool (PKOB4) is not working properly?