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Messages - Ralf_Brandt

#1
LPC9xx/LPC9xxx / Re: Read Flash Memory?
October 13, 2010, 02:20:00 PM
Sorry I haven't been around for a whlie.
The Bootloader code I was refferencing to is at:
http://www.nxp.com/documents/other/an10337.zip
and
http://www.nxp.com/documents/other/Adding_ISP_in_source_code.zip
#2
LPC9xx/LPC9xxx / Re: Read Flash Memory?
May 11, 2010, 10:39:02 AM
ISP FN 9 read user memory will use IAP FN 7

"      mov   DP0H, R4   ; Data Pointer High Byte
      mov   DP0L, R5   ; Data Pointer Low Byte
      clr   A
      movc   A, @A+DPTR
      mov   R7, A
      ret
"
And IAP FN 7 will use movc, so Bit 1 will work
#3
LPC9xx/LPC9xxx / Re: Read Flash Memory?
May 06, 2010, 09:48:09 PM
no it isn't.
Use the security bits, thats what they are for.
#4
LPC9xx/LPC9xxx / Re: Read Flash Memory?
May 03, 2010, 12:45:54 PM
Strange!
Maybe you need to get an updated Doc from NXP.

The Bootlodercode supplyied by NXP does contain a
Function 09 -Read User

And if I open a Terminal and type in:
:0500000900000fff00e4
I will get a perfect Memory Dump.
Tested with a brand new 89LPC921.

So at least the current 921 do support memory read.

Regards
Ralf