avr/avrdude
2
0
Fork 0
mirror of https://github.com/mariusgreuel/avrdude.git synced 2025-09-27 22:45:27 +00:00
Code Issues Projects Releases Wiki Activity

Document the JTAG ICE mkI support.

Browse Source 
git-svn-id: svn://svn.savannah.nongnu.org/avrdude/trunk/avrdude@559 81a1dc3b-b13d-400b-aceb-764788c761c2
This commit is contained in:
Joerg Wunsch
2005-11-29 22:58:04 +00:00
parent 05f3e8b038
commit 9000815867
4 changed files with 41 additions and 9 deletions
Download Patch File Download Diff File Expand all files Collapse all files

25
doc/avrdude.texi
View File

@@ -136,7 +136,7 @@ exploring memory contents, modifing individual bytes of eeprom,
programming fuse/lock bits, etc.
AVRDUDE supports six basic programmer types: Atmel's STK500,
Atmel's JTAG ICE mkII, appnote
Atmel's JTAG ICE (both mkI and mkII), appnote
avr910, appnote avr109 (including the AVR Butterfly),
serial bit-bang adapters,
and the PPI (parallel port interface). PPI represents a class
@@ -172,7 +172,7 @@ The JTAG ICE also uses a serial communication protocol which is similar
to the STK500 firmware version 2 one. However, as the JTAG ICE is
intented to allow on-chip debugging as well as memory programming, the
protocol is more sophisticated.
(This protocol can also be run on top of USB.)
(The JTAG ICE mkII protocol can also be run on top of USB.)
Only the memory programming functionality of the JTAG ICE is supported
by AVRDUDE.
@@ -444,6 +444,13 @@ Atmel Butterfly Development Board
@itemx dt006
Dontronics DT006
@item jtagmkI
@itemx jtag1
Atmel JTAG ICE mkI, running at 115200 Bd
@itemx jtag1slow
Atmel JTAG ICE mkI, running at 19200 Bd
@item jtagmkII
@itemx jtag2slow
Atmel JTAG ICE mkII (default speed 19200 Bd)
@@ -1842,11 +1849,21 @@ Use the -F option to force AVRDUDE to continue anyway.
@item
Problem: Updating the flash ROM from terminal mode does not work with the
JTAG ICE mkII.
JTAG ICEs.
Solution: None at this time. Currently, the JTAG ICE mkII code cannot
Solution: None at this time. Currently, the JTAG ICE code cannot
write to the flash ROM one byte at a time.
@item
Problem: Page-mode programming the EEPROM (using the -U option) does
not erase EEPROM cells before writing, and thus cannot overwrite any
previous value != 0xff.
Solution: None. This is an inherent feature of the way JTAG EEPROM
programming works, and is documented that way in the Atmel AVR
datasheets.
In order to successfully program the EEPROM that way, a prior chip
erase (with the EESAVE fuse unprogrammed) is required.
@end itemize