HEX file in LPC2000 Flash Utility

What does your .hex file look like ? It should look something like this:

The frequency in the flash utility screen should match the crystal frequency on your device. It has nothing to do with windows.

Hi When I was searching this group I have seen this format. I checked it that time and again. I think the format of the HEX file is correct but I have copied the 3 first and the last line of it: :020000040000FA :1000000018F09FE

Is it any thing wrong? By the way the person who has sent me the manual says he can upgrade the Flash by the same HEX file. Thanks for your reply.

If what showed up in the quote above is what's really in the hex file then yes, something is wrong. For comparison, here's the first three lines from a simple "blink the LED" ARM project's hex file:

:020000040000FA :1000000018F09FE508F04FE208F04FE208F04FE2E9 :1000100008F04FE208F04FE2F0FF1FE508F04FE272

By "can" does he mean that he is capable of or that he has?

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Yes. That is an impossible content for an Intel format HEX file. There is an entire chapter in ppmanual, available as ppmanual.zip, on hex format and rbm format files. You can find this at:

I have just made a mistake about the file I am using. I just create a page break in it. The file I can't upload to the Flash looks like this: :020000040000FA :1000000018F09FE518F09FE518F09FE518F09FE5C0 :1000100018F09FE5805F20B9F0FF1FE518F09FE51D :10002000980000004000000044000000480000006C . . . :10C430004CC4000000400040000000004CC400005C :0CC4400000000000000000402C3A00004A :00000001FF I have collected some information about the HEX file format and now I am more familiar with it. But there is a problem. While I am opening this file with Notepad, the format of the file does not look like this.But when I open it with softwares that can read HEX files like Tiny HEX, the format is like above. So I decided to make the HEX file again. I copied the information that was shown in Tiny Hexer software in a Notepad and arranged the page breaks same as above. But again I could not upload the file. What is starange is that when I use the below HEX file, I can upload ut to the Flash: :10001300AC12AD13AE10AF1112002F8E0E8F0F2244 :10000300E50B250DF509E50A350CF5081200132259 :03000000020023D8 :0C002300787FE4F6D8FD7581130200031D :10002F00EFF88DF0A4FFEDC5F0CEA42EFEEC88F016 :04003F00A42EFE22CB :00000001FF I am confused!!!

Microsoft, in its great wisdom, often believes that it knows better what you want than you do.

Don't do that. If you want or need to check the file format, do not use Notepad. Go to

Never, ever use Notepad. It's usless. Wordpad is far less broken than Notepad, but still vastly inferior to something like PFE or emacs, or vim, or several dozen other (free) real editors.

Or for simple editing just use 'ed' under cygwin (you only need 'ed.exe' and 'cygwin1.dll' -- be sure to use the correct version of the dll for the executable; if you get unresolved sym references, get a newer cygwin1.dll).

Michael

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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ which are here ^^___ Data length is 10 hex, i.e. 16 bytes ^^^^____ and load at address 0013 (hex) ^^____ this is a type 0 (data) record. and has a checksum of 44 hex ____ ^^ and anything following, up to the colon, is to be ignored.

The above are all type 00, i.e. data, records.

but this ^^ is a zero data length type 1 record. The 0000 address says transfer control to the byte loaded at address 0, or don't transfer.

Look up the reference I gave you yesterday, which explains it all.

If you want to post a followup via groups.google.com, ensure you quote enough for the article to make sense. Google is only an interface to Usenet; it's not Usenet itself. Don't assume your readers can, or ever will, see any previous articles. More details at:

Watching an experienced "ed" user is pretty amazing.

Watching an inexperienced "ed" users is pretty amusing.

I am (and always will be) in the latter categeory. I doubt that there have been any new entrants in the former for a long time...