BASCOM 2083 EEPROM Programming fails

Carlos · Joined: 16 Mar 2006 Posts: 19

Hello,
I have now noticed an error when programming the EEPROM with BASCOM 2083:
the programming of the EEPROM is wrong. I use the "MYSMARTUSB LIGHT" programmer.
The programming of EEPROM (Mega8, Mega 644, Mega 1228) works correctly under
BASCOM 8081/8082, but no longer under BASCOM 8083.

Have any of you had similar problems?
Best regards

(BASCOM-AVR version : 2083 , Latest : 2.0.8.3 )

MWS · Joined: 22 Aug 2009 Posts: 1903

From the titel:

Dibor · Joined: 04 Dec 2004 Posts: 126 Location: ISRAEL

Looks like he is means versions: 2081/2082/2083

Carlos · Joined: 16 Mar 2006 Posts: 19

Hello,
here is the excerpt of the result after the
EPROM programming from BASCOm 2083:

and here is the excerpt of the result after the
EPROM programming from BASCOm 2082:

the difference is clearly visible.
Flash memory and fuses are ok

best greatings

albertsm · Joined: 09 Apr 2004 Posts: 5157 Location: Holland

i had a look. indeed this is a bug.
the myavr programmer uses the stk500v2 protocol. but they do not proper support the load address function. this will reset the address some how. normally you only load the address when you skip empty blocks. but the myavr programmer seems to use auto increase. so in a previous version where programming was speeded up by skipping empty blocks, this broke the myavr programmer. that was corrected in 2083 but this broke the eeprom programming. so now i made separate code for the stk500 and the myavr.
i will make a patch available later after some more testing.

Carlos · Joined: 16 Mar 2006 Posts: 19

Thanks Mark,
that you looked at this.
it was again a very quick answer from you!