| ??? 02/24/06 20:14 Read: times |
#110721 - That's exactly my question Responding to: ???'s previous message |
Jon Ledbetter said:
From the code you posted earlier.
MOV FMCON,#68H; "ERASE" COMMAND FOR 89LPC952
MOV R7,FMCON ; TO READ STATUS MOV A,R7
ANL A,#0FH; CHECK THE STATUS OF FMCON
Which is correct in your most recent post. What is different between these two pieces of code?
first part:
LOAD_PAGE:
MOV FMDAT,@R0 ;write data to
INC R0 ;point to next
DJNZ R3,LOAD_PAGE ;do until count
MOV FMCON,#EP ;else erase &
second_part:
LOAD_PAGE1:
MOV FMDAT,#32H ;write data to FMDATA
DJNZ R3,LOAD_PAGE ;do until count
RET ;and return
Hi Jon, Thanks for responding.My question is also the same thing.There should not be any difference between the pieces of code other than the 'first part' is loading 00 to the addresses 440h to 480h and 'second part' s loading "32h" to addresses 440h to 480h. But when I try to read the bytes or rather see the memory window(code window)I do not see the bytes being written as "32h" from 440h to 480h. |
| Topic | Author | Date |
| 89LPC952 FLASH PROGRAMMING | 01/01/70 00:00 | |
| Notes on posting code | 01/01/70 00:00 | |
| rewrritten code 89LPC952 IAP code | 01/01/70 00:00 | |
| what more do you need | 01/01/70 00:00 | |
| Not sufficient!!! | 01/01/70 00:00 | |
| how did you not "see" that? | 01/01/70 00:00 | |
| I have written the code.... | 01/01/70 00:00 | |
| Looks to me like | 01/01/70 00:00 | |
| I have written the code | 01/01/70 00:00 | |
| How can writing a constant be "the next" | 01/01/70 00:00 | |
| Oh I see... | 01/01/70 00:00 | |
| Disreguard previous post | 01/01/70 00:00 | |
| a hint | 01/01/70 00:00 | |
| updated code for 89LPC952 IAP | 01/01/70 00:00 | |
| The above correction ('ONE' should be '1 | 01/01/70 00:00 | |
| Ok... | 01/01/70 00:00 | |
| That's exactly my question | 01/01/70 00:00 | |
| How about.... | 01/01/70 00:00 | |
| Thanks it worked!! | 01/01/70 00:00 | |
You're welcome | 01/01/70 00:00 | |
| Neat | 01/01/70 00:00 | |
| If we go there, then | 01/01/70 00:00 |