dbowden

Ha - found it. There's a file "PIC16F616.TDF" in C:\Program Files\SourceBoost\config which contains the memory specs for the chip. If you change line 19 from: AddressRange = 0000h -> 03FFh; to AddressRange = 0000h -> 06FFh; it now works properly. David

Microchip says the 16F616 ROM (program space) is 3.5Kbytes, but BoostC Optimizing C Compiler Version 6.87 (for PIC16 architecture) will only compile a program up to 1024 words (2Kbytes). It gives the following output at the end of build: Memory Usage Report =================== RAM available:128 bytes, used:75 bytes (58.6%), free:53 bytes (41.4%), Heap size:53 bytes, Heap max single alloc:20 bytes ROM available:1024 words, used:759 words (74.2%), free:265 words (25.8%) I'm using MPLAB, but get the same results from SourceBoost IDE. I also get the same results for 16F610