Hi David, Looks like an INH32 format file. Quite a few of the 'older' programming tools only support INHX8M format. You can change the format in MPLAB by going to 'Edit Project' and selecting the properties for the .hex file. Cheers, Dave David Murphy wrote: > Greetings... I'm using the hardware and software here: > > http://www.jdm.homepage.dk/newpics.htm > > When I try to run picprog using a relatively simple program generated > by MPLAB, it complains of a checksum error. I did a little research to > find the checksum method for hex files, and manually verified that > every line of the file checks out. I know I've used this hardware and > at least a version of this software successfully before. Is anyone > perhaps familiar with this software? Any guesses on what could be > causing the error? The author unfortunately stated that he is no > longer responding to emails. > > The contents of the hex file are as follows: > ----- > :020000040000FA > :1000000083160130850083160030860083128C0130 > :100010008D018E0105088C000C1C14280D18142865 > :0E0020008E0A0E080F3986000C088D000A2883 > :02400E00F33F7E > :00000001FF > ----- > > -David Murphy > glibdud@hotmail.com > > -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist