24LC16B Hex dump with picaxe

[vk6kci]

Hi all,

Is it easy to dump the contents of an Intel Hex file onto an 24LC16B serial eeprom? and if so, can anyone point me in the right direction.

I need to program an 24LC16B but don't own a suitable serial programmer other than the picaxe USB programming cable with all the associated picaxe devices.

It seem entirely possible to me..... being simply a case of using an I2C compatible picaxe and then serially loading it with the data out of the hex file. But..... without a lot of research, I don't know how to go about it!

Does anyone know and/or are ther routines already written to do that?

Looking forward to your replies.

Kind regards
Maarten
vk6kci

 

[westaust55]

I have written code to write to external 24LCxxx series EEROMs. See:
http://www.picaxeforum.co.uk/showthread.php?p=74067

You need to have the hex file in a format and location the the PICAXE can read/access.

what form/media do you have the hex file in/on at present?

I am more familiar with other hex listing formats (Motorola/MOS Technology).
A google search finds plenty of information on the Intel Hex file format.

 

[vk6kci]

The Hex file I am using is really a text file in Intel hex format

i.e.

:10000000FF1C0102000000FFFFFFFFFFFFFFFFFFDB

Comprising of:
:
Record length
Address
Record type
Data
Checksum

This file works for most programming software like ICprog etc.

Regards
M.

 

[westaust55]

I feel it is unlikely someone has written a program to do EXACTLY what you want.

I have not tried transferring data from a PC to a PICAXE but think you will need to use the SERRXD command in a PICAXE program to read the data.
See PICAXE manual 2 page 157.

Then you need to write a program (in VB?) for the PC to read the file and send the data to the PICAXE.

Since you are only looking at a maximum of 2 kbytes, it my be worth just typing that data into a PICAXE program as I have done to write to the external EEPROM. You could spend as long developing a program unless your programming skills are good.