I can't get this simple program to program or work. Configuration: PIC16F88-I/P on an Olimex PG4-D board, 20 MHz crystal (http://olimex.com/dev) Serial port cable from IBM Thinkpad T30 (on a dock/port replicator) running Windows 2000. ICPROG 1.05C, configured for Windows API (as per directions for Windows NT --> 2000) and for 16F84A (there was no 16F88 line). MPLAB 6.60 Config lines in the .asm file: __CONFIG _CONFIG1, _CP_OFF & _CCP1_RB3 & _DEBUG_OFF & _CPD_OFF & _LVP_OFF & _BODEN_ON & _MCLR_OFF & _PWRTE_ON & _WDT_OFF & _HS_OSC __CONFIG _CONFIG2, _IESO_OFF & _FCMEN_OFF Firstly, a number of constants don't seem to be defined (_WRT_ENABLE_OFF is not defined, so I removed it from the _config line) in the include file. When I used ICPROG to write it, it failed on the readback/compare. Anybody have a reasonable config value or list for this MCU? Anybody have a working program and/or MPLAB project to blink the LED (connected to RA2 on the Olimex PG4-D board) for the 16F88-I/P? Set of sample programs for the 16F88? 16F877A (which I'm going to stick on an Olimex P40-B)? Thanks. -Ralph _______________________________________________ http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist