Output hex file and Microchip direct

[enigma]

Hi All!

I suppose slightly off topic but for want of a better place to post I`ll put it here. Microchip direct are offering a reasonable priced bulk programing service for PIC's when ordered off their site. Since I need to program 1.5K in a batch shortly and don`t have a gang programmer or time I like the idea of this. Now the question, The device is programed from an uploaded hex file. The site requires a check sum for the hex file, I know MPLAB can generate this thanks to MCtechnical but is there another way to generate the checksum without having to run MPLab?. Second question is does the hex file generated by PBP contain the fuse settings (Int osc etc) and contents for the EEPROM area assuming that these are already declared in the PBP program?. I`ve always programmed my own PIC's via a Warp or MeLabs programmer so this bits new to me!.

Cheers Pete

[BigWumpus]

PBP generates a .hex-file with the fuses and EEPROM. This informtions are placed on special adresses (which are known for each device).

In an Intel-Hex-file, each line has it own checksum.

Browsing the MC-site I can't find any hint of a checksum for your upload...

[enigma]

Hi Try

https://www.microchipdirect.com/Prog...g/Default.aspx

thats reached from www.microchipdirect.com. You will have to register first bit when you follow the project set up through the last question asked is checsum for your uploaded hex file.

Cheers Pete

[BigWumpus]

OK,
I give up !

It is to complicate for me to reach the site. Please use this tools or copy the text...

ftp://ftp.bigwumpus.de/CHKSUM.EXE
ftp://ftp.bigwumpus.de/crc.exe
ftp://ftp.bigwumpus.de/crc.doc
ftp://ftp.bigwumpus.de/FILECRC.COM

This are old utils out of my fundus.

[enigma]

Many thanks, I`ll give these a try

Cheers Pete

[ErnieM]

MPLAB can be your friend here!

First, set Configure | Set Device to the PIC you use.

Next, load your hex file into it via File | Import.

Now, you get the hex checksum top left corner. To insure the "fuse bits" are correct, drill down Configure | Configuration Bits and have a look at them.

I've used Digi-Keys programming service a few times, they also require the config bits to be sent, I screen-shot them right from MPLAB.