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gjs_rsdi
Joined: 06 Feb 2006
Posts: 468
Location: Bali
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| Programming verification error |
 Posted: Mon Jan 20, 2020 7:36 pm |
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Hi
I am using ICDU64 to program the PIC.
The microcontroller is PIC18F26K22.
CCS PCH C Compiler, Version 5.062.
In the past I was saving some data in the internal EEPROM while programming the chip as bellow:
| Code: | #rom getenv("EEPROM_ADDRESS")={0}
#rom 0xF000F0 = { 0x02 }
#rom 0xF000F1 = { 0x02 }
#rom 0xF000F2 = { 0x02 }
#rom 0xF000F3 = { 0x02 }
#rom 0xF000F4 = { 0x02 }
#rom 0xF000F5 = { 0x02 }
#rom 0xF000F6 = { 0x02 }
#rom 0xF000F7 = { 0x02 }
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I presume that I am saving the data in the locations F0 and up.
I changed the software to:
| Code: | #rom getenv("EEPROM_ADDRESS")={0}
#rom 0xF00000 = { 0x02 }
#rom 0xF00001 = { 0x02 }
#rom 0xF00002 = { 0x02 }
#rom 0xF00003 = { 0x02 }
#rom 0xF00004 = { 0x02 }
#rom 0xF00005 = { 0x02 }
#rom 0xF00006 = { 0x02 }
#rom 0xF00007 = { 0x02 }
#rom 0xF00008 = { 0x02 }
#rom 0xF00009 = { 0x02 } |
I was thinking that now I will save the data from 00.
When trying to program the chip I am getting:
"Programming error of the data storage:
Address 0000; Actual 02; Expected 00;
Please be kind and explain me what I am doing wrong
Best wishes
Joe |
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Ttelmah
Joined: 11 Mar 2010
Posts: 19520
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| Posted: Mon Jan 20, 2020 11:05 pm |
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Problem is you are trying to write both 0, and 2 to the same address....
Your original format was a little dangerous. Better to load
the EEPROM_ADDRESS, and do all the writes _relative_ to this. So:
| Code: |
#rom getenv("EEPROM_ADDRESS")={0}
#rom int8 getenv("EEPROM_ADDRESS")+0xF0 = { 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02 }
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Now you can use the same approach for your new version, just remember
the first line is writing 0 to the first byte of the EEPROM, so if you want to
store '2' here this will need to change.... |
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gjs_rsdi
Joined: 06 Feb 2006
Posts: 468
Location: Bali
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| Posted: Tue Jan 21, 2020 12:29 am |
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Thank you for your post Ttelmah 
I understand what you wrote and will do as you advised.
Best wishes
Joe |
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