Reading register in "Production Signature Row"

[DragosP]

I think the subject is concludent.
How do we read any register from "Production Signature Row" for a XMega128A1 using mikroPascal PRO for AVR?

[DragosP]

The answer is quite simple, but needs some extra documentation. In my humble opinion, the original Atmel datasheet is poor.

Code: Select all

  asm
    ldi zl, 0x20                        ;adress 0x20, ADCACAL0
    clr zh
    ldi  R27, 2                         ;command, read "Production signature row"
    sts  NVM_CMD+0, R27
    lpm r27, z                         ;read in r27
    sts  _temp_lo+0, R27        ;store from r27
  end;

[corado]

Hi,
this doesn'T work for me
It says _temp_lo isn't declared.....if I do this in VAR section it doesn't work too..

[dejan.odabasic]

Hello,

Have you tried declaring a global variable temp_lo variable (without first underscore)?

Code: Select all

program MyProject;
var temp_lo : byte;
begin
  asm
    ldi zl, 0x20                        ;adress 0x20, ADCACAL0
    clr zh
    ldi  R27, 2                         ;command, read "Production signature row"
    sts  NVM_CMD+0, R27
    lpm r27, z                         ;read in r27
    sts  _temp_lo+0, R27        ;store from r27
  end;
end.

Best regards.

[corado]

ah,, ok, no, I try this again later.
But can you help me, and say, how this in Pascal looks like?

[corado]

it doesn't work..
If I do this, the System hangs up