Actually, the SCK has to be set before powerup, so the new line goes
before power setting :)
Sorry,
D.
On 09/22/2013 08:13 PM, Ing. Daniel Rozsnyó wrote:
I was quite impatient so I started debugging with adding printf() to the
ft245 code... and found out that the reset is done wrong.
So I fixed it:
- main issue: after some instruction (presumably chip erase) the SCK
is H, so in that case, the consequent enter programming mode was of no
success
- the timing does not reflect the datasheet of the cpu (20ms!)
Patch attached. I'll also try to solve the last annoying bit - lockup
after the command is done.
Daniel
On 09/22/2013 05:47 PM, Ing. Daniel Rozsnyó wrote:
Hello,
is the fuse reading and programming too different from a chip erase ?
I am having trouble flashing a ATmega88PA chip - lowering the bitrate
does not help (anyway at 250400 it behaves realtime, at 9600 reading
the fuses takes 10-15sec! And it still wont exit correctly):
*$ avrdude -c arduino-ft232r -P usb -p atmega88p -b 250400 -e*
avrdude: AVR device initialized and ready to accept instructions
Reading | ## | 100% 0.01s
avrdude: Device signature = 0x1e930f
avrdude: erasing chip
avrdude: Device is not responding to program enable. Check connection.
^C
*$ avrdude -c arduino-ft232r -P usb -p atmega88p -b 9600 -e*
avrdude: AVR device initialized and ready to accept instructions
Reading | ## | 100% 9.51s
avrdude: Device signature = 0x1e930f
avrdude: erasing chip
avrdude: Device is not responding to program enable. Check connection.
^C
This works:
*$ avrdude -c arduino-ft232r -P usb -p atmega88p -b 250400 -U
efuse:w:0x00:m**
*
avrdude: AVR device initialized and ready to accept instructions
Reading | ## | 100% 0.01s
avrdude: Device signature = 0x1e930f
avrdude: reading input file 0x00
avrdude: writing efuse (1 bytes):
Writing | ## | 100% 0.01s
avrdude: 1 bytes of efuse written
avrdude: verifying efuse memory against 0x00:
avrdude: load data efuse data from input file 0x00:
avrdude: input file 0x00 contains 1 bytes
avrdude: reading on-chip efuse data:
Reading | ## | 100% 0.00s
avrdude: verifying ...
avrdude: 1 bytes of efuse verified
avrdude: safemode: Fuses OK (E:00, H:DC, L:E7)
^C
*$ avrdude -c arduino-ft232r -P usb -p atmega88p -b 250400 -U
efuse:w:0x01:m*
avrdude: AVR device initialized and ready to accept instructions
Reading | ## | 100% 0.01s
avrdude: Device signature = 0x1e930f
avrdude: reading input file 0x01
avrdude: writing efuse (1 bytes):
Writing | ## | 100% 0.01s
avrdude: 1 bytes of efuse written
avrdude: verifying efuse memory against 0x01:
avrdude: load data efuse data from input file 0x01:
avrdude: input file 0x01 contains 1 bytes
avrdude: reading on-chip efuse data:
Reading | ## | 100% 0.00s
avrdude: verifying ...
avrdude: 1 bytes of efuse verified
avrdude: safemode: Fuses OK (E:01, H:DC, L:E7)
^C
FULL VERBOSE REPORT:
*$ avrdude -c arduino-ft232r -P usb -p atmega88p -b 250400 -e -vvv*
avrdude: Version 6.1-svn-20130917, compiled on Sep 22 2013 at 17:32:10
Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
Copyright (c) 2007-2009 Joerg Wunsch
System wide configuration file is /usr/local/etc/avrdude.conf
User configuration file is /home/daniel/.avrduderc
Using Port: usb
Using Programmer : arduino-ft232r
Overriding Baud Rate : 250400
avrdude: unknown: Pin is ok.
avrdude: VCC: Pin is ok.
avrdude: BUFF: Pin is ok.
avrdude: RESET: Pin is ok.
avrdude: SCK: Pin is ok.
avrdude: MOSI: Pin is ok.
avrdude: MISO: Pin is ok.
avrdude: ERRLED: Pin is ok.
avrdude: RDYLED: Pin is ok.
avrdude: PGMLED: Pin is ok.
avrdude: VFYLED: Pin is ok.
ft245r: spi bitclk 250400 - ft baudrate 500800
AVR Part : ATmega88P
Chip Erase delay : 9000 us
PAGEL : PD7
BS2 : PC2
RESET disposition : dedicated
RETRY pulse : SCK
serial program mode : yes
parallel program mode : yes
Timeout : 200
StabDelay : 100
CmdexeDelay : 25
SyncLoops : 32
ByteDelay : 0
PollIndex : 3
PollValue : 0x53
Memory Detail :
Block Poll Page Polled
Memory Type
