[sdcc-devel] [ sdcc-Bugs-733119 ] SDCC does not work on other ATMEL microcontrollers

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Bugs item #733119, was opened at 2003-05-06 00:29
Message generated for change (Comment added) made by pjs
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=100599&aid=733119&group_id=599

Category: msc51(8051) target
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: Shahzad Aslam (shahzad73)
Assigned to: Nobody/Anonymous (nobody)
Summary: SDCC does not work on other ATMEL microcontrollers

Initial Comment:
Hello there

I am getting a problem with SDCC. I am using ATMEL 
8051 architecture chips. Here is what is happening with 
me

- I have a AT89c2051 chip from Atmel which is a 8051 
architecture chip. OKey i run and burn a program in 
SDCC C and its working absolutely fine. No problem

- Now i change my chip to AT89c51(4KB Flash) and 
then AT89c52 (8KB Flash) chips from Atmel. Now the 
problme starts. i build and compile and burn a program 
in SDCC, try to run it on it... program does not work. 

THen i build a program in a Assembler (that comes with 
my programmer hardware) i burn it and run it, it works.


So the situation is that program writted in SDCC does 
not work on atmel AT89c51 and 52 chips. but program 
writted in Assembly is working fine. 

Please give me suggestions on this as soon as possible 
as i need to use SDCC and also program AT89c52 and 
later AT87LV55 chips. Its very importand. actually i am 
handling my first hardware project.



Shahzad Aslam

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>Comment By: Paul Stoffregen (pjs)
Date: 2003-05-06 13:50

Message:
Logged In: YES 
user_id=104682

Perhaps the C code you wrote has a bug, which is not present
in your assembly language version?  Since you did not attach
the code for either one, I can only speculate.

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Comment By: Nobody/Anonymous (nobody)
Date: 2003-05-06 10:56

Message:
Logged In: NO 

The at89c2051 and the at89c51 are softwarecompatible.
Try to find the problem in the programmer or the
translater of your hexfile.
Compare the content of the hextobin -output
to the romcontent.

g....@gm...








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