how to program an st62t25c

brancaleg · ‎2004-06-30

Posted on July 01, 2004 at 04:43

brancaleg · ‎2004-03-02

Posted on March 02, 2004 at 11:07

I'm trying to program the st62t25c but never success , I mean that when i use it in the circuit it does not work. Of course i have tried the st62e25c for all the test and with this device every think works properly. Where I make a mistake?

GeB

marco32 · ‎2004-03-14

Posted on March 15, 2004 at 06:16

I've had also the same problem.

The reset vector is'nt correct.

Look at the generated hex code at the last line!

If there is'nt a reset vector, the assembler generated $FFh

The stupid thing is, that the eprom version will works OK, but an OTP not!?

How to solve the problem:

Check your endline of your asm code.

The END command must be followed by an ENTER command.

I guess your reset vector is the last uC command

So if there's no ENTER command after the END command, the assembler ignor the last uC command.

Succes

nlangford · ‎2004-06-30

Posted on July 01, 2004 at 04:43

Hi , as suggested there may be a difference in the reset vector but this is not the root cause of your problem.

If you are using the linker ensure that section P1 is assigned correctly eg

-P0:80-07ff