| Author |
Message |
fabrizio
Guest
|
 Posted:
Sun Dec 12, 2004 5:21 am Post subject:
Reading EEPROM data, ATMEGA16, with imagecraft c-compiler |
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Hei all,
The intension is to read out a table located in EEPROM using the imagecraft
C-compiler version 6.31A
Definition in C
---------------
#pragma data:eeprom
char Output_Ports_Table[] = { 0x38, 0x02};
#pragma data:data
...
...
In the program i write following code
....
....
unsigned char Table_Contents;
EEPROM_READ((int)&Output_Ports_Table[0], Table_Contents);
Table_Contents should get the value 0x38, however it keeps getting the value
FFFF ?
After compiling the c-file i get a file with extension eep and hex.
Both files are downloaded to the ATMEGA16 using the Ponyprog tool. When
reading the EEPROM data with Ponyprog, i can see the values 0x38 and 0x02.
The EEPROM should be programmed correctly.
Can you help me out with this please.
Regards,
Fabrizio, |
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Gary Kato
Guest
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| Posted:
Sun Dec 12, 2004 6:51 am Post subject:
Re: Reading EEPROM data, ATMEGA16, with imagecraft c-compile |
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| Quote: | EEPROM_READ((int)&Output_Ports_Table[0], Table_Contents);
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I don't have a C compiler for AVR. What does EPROM_READ take as parameters?
That second paramter should probably be:
&Table_Contents
You want to pass the address of the variable, not the value. |
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Richard M.
Guest
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| Posted:
Sun Dec 12, 2004 12:59 pm Post subject:
Re: Reading EEPROM data, ATMEGA16, with imagecraft c-compile |
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fabrizio wrote:
| Quote: | Hei all,
The intension is to read out a table located in EEPROM using the imagecraft
C-compiler version 6.31A
Definition in C
---------------
#pragma data:eeprom
char Output_Ports_Table[] = { 0x38, 0x02};
#pragma data:data
That ought to work. Email me directly with the question and I will help |
you out.
--
// richard
http://www.imagecraft.com |
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