Bootloader for 16f87/88 that doesn't use UART

[bcd]

After a weekend in the shed I have learned more about the memory layout and programming requirements of the 16f87/88 then I think I ever wanted to know.

Darrel Taylor - Excellent piece of advice re the ERASE / Write cycle. I am investigating the best way to do this, as well as making sure we don't overwrite the bootloader at the high end.

dhouston - Thank you for the link to the thread on the 18F bootloader. There is some great info on reorganising the libary to get round some jumps to 0 that I had been seeing in some hex code I created.

There is so much to learn and so much more playing to do. Stand by everyone - its coming ! We are at 650 words, but I am trying some tricks to squish that down as there are other things I would like to add.

bill.

[dhouston]

There is so much to learn and so much more playing to do. Stand by everyone - its coming ! We are at 650 words, but I am trying some tricks to squish that down as there are other things I would like to add.

Once you post what you have, Darrel Taylor and Bruce Reynolds likely to suggest further improvements.

[Darrel Taylor]

Clarification ....

You make it WORK.
We can All add to the "squish" part.

Useful project, I promise to do my share.
<br>

[skimask]

We can All add to the "squish" part.

Shooting for a 12 byte bootloader are ya?

[mister_e]

i know 35words is doable... but 12

[dhouston]

You make it WORK.
We can All add to the "squish" part.

Useful project, I promise to do my share.
<br>

I'd offer to help squish but fear I'd squash. Once squished, I'll provide PureBasic source for Windows/Linux/Mac interfaces. I can test Windows & Linux but don't have a Mac. PB code is fairly easy to convert to VB.

[skimask]

I'd offer to help squish but fear I'd squash. Once squished, I'll provide PureBasic source for Windows/Linux/Mac interfaces. I can test Windows & Linux but don't have a Mac. PB code is fairly easy to convert to VB.

Generic question about bootloaders...since I haven't had the need to use them.
Do the bulk of the bootloaders out there do HEX files or straight binary data (assuming you're not ever changing the config registers, IDLOCs, etc.)...

[dhouston]

I think most, if not all, handle hex files.

[mister_e]

i'll second the .HEX. Anyways.. what's the point of .BIN file while none of the assembler i know generate it anyway