Code Startup

"Saurabh" <[email protected]>
Newsgroups gmane.comp.hardware.microcontrollers.tini
Message-ID <[email protected]>
Hi,

I have a typical problem in code execution from flash at power on. I
have 2 boards with DS80C400 with 2MBytes of flash and 512Kbytes of
SRAM.Application loaded in the flash is PPPClient at 0x470100 and TINIOS at
0x400000.

One board has a DS80C400 0336B1 026DC FNY, which at power on, executes the
PPPClient of its own...No problem with this board...

while other board has DS80C400 0336B1 0261A FNY, which at power on,  doesn't
execute the PPPClient..I have to invoke the bootloader, select respective
bank (B 40) and then issue execute command (X) through boot loader...Then
only TINIOS starts and application starts runining...After invoking boot
loader (by default Bank selected is C0), if exit command (E) is issued, code
halts and gives error message no User application found..

What could be the problem ??? Both the boards are identical in all
respeect... Is there any problem with the DS80C400 chip revision...

Saurabh

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