[avrdude-dev] [patch] FT245R correct reset (was Re: ftdi_syncbb (FT232R): won't erase the (m88p) chip)

[Ing. Daniel Rozsnyó]

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 Mode Delay Size  Indx Paged  Size   Size #Pages
> MinW  MaxW   ReadBack
>             ----------- ---- ----- ----- ---- ------ ------ ---- ------
> ----- ----- ---------
>             eeprom        65    20     4    0 no        512 4      0
> 3600  3600 0xff 0xff
>                                    Block Poll Page Polled
>             Memory Type Mode Delay Size  Indx Paged  Size   Size #Pages
> MinW  MaxW   ReadBack
>             ----------- ---- ----- ----- ---- ------ ------ ---- ------
> ----- ----- ---------
>             flash         65     6    64    0 yes      8192   64 128
> 4500  4500 0xff 0xff
>                                    Block Poll Page Polled
>             Memory Type Mode Delay Size  Indx Paged  Size   Size #Pages
> MinW  MaxW   ReadBack
>             ----------- ---- ----- ----- ---- ------ ------ ---- ------
> ----- ----- ---------
>             lfuse          0     0     0    0 no          1 0      0
> 4500  4500 0x00 0x00
>                                    Block Poll Page Polled
>             Memory Type Mode Delay Size  Indx Paged  Size   Size #Pages
> MinW  MaxW   ReadBack
>             ----------- ---- ----- ----- ---- ------ ------ ---- ------
> ----- ----- ---------
>             hfuse          0     0     0    0 no          1 0      0
> 4500  4500 0x00 0x00
>                                    Block Poll Page Polled
>             Memory Type Mode Delay Size  Indx Paged  Size   Size #Pages
> MinW  MaxW   ReadBack
>             ----------- ---- ----- ----- ---- ------ ------ ---- ------
> ----- ----- ---------
>             efuse          0     0     0    0 no          1 0      0
> 4500  4500 0x00 0x00
>                                    Block Poll Page Polled
>             Memory Type Mode Delay Size  Indx Paged  Size   Size #Pages
> MinW  MaxW   ReadBack
>             ----------- ---- ----- ----- ---- ------ ------ ---- ------
> ----- ----- ---------
>             lock           0     0     0    0 no          1 0      0
> 4500  4500 0x00 0x00
>                                    Block Poll Page Polled
>             Memory Type Mode Delay Size  Indx Paged  Size   Size #Pages
> MinW  MaxW   ReadBack
>             ----------- ---- ----- ----- ---- ------ ------ ---- ------
> ----- ----- ---------
>             calibration    0     0     0    0 no          1 0      0
> 0     0 0x00 0x00
>                                    Block Poll Page Polled
>             Memory Type Mode Delay Size  Indx Paged  Size   Size #Pages
> MinW  MaxW   ReadBack
>             ----------- ---- ----- ----- ---- ------ ------ ---- ------
> ----- ----- ---------
>             signature      0     0     0    0 no          3 0      0
> 0     0 0x00 0x00
>
>           Programmer Type : ftdi_syncbb
>           Description     : Arduino: FT232R connected to ISP
>           Pin assignment  : 0..7 = DBUS0..7
>             VCC     =  (not used)
>             BUFF    =  (not used)
>             RESET   =  7
>             SCK     =  5
>             MOSI    =  6
>             MISO    =  3
>             ERR LED =  (not used)
>             RDY LED =  (not used)
>             PGM LED =  (not used)
>             VFY LED =  (not used)
>
> avrdude: AVR device initialized and ready to accept instructions
>
> Reading | ################################################## | 100% 0.01s
>
> avrdude: Device signature = 0x1e930f
> avrdude: safemode read 1, lfuse value: e7
> avrdude: safemode read 2, lfuse value: e7
> avrdude: safemode read 3, lfuse value: e7
> avrdude: safemode: lfuse reads as E7
> avrdude: safemode read 1, hfuse value: dc
> avrdude: safemode read 2, hfuse value: dc
> avrdude: safemode read 3, hfuse value: dc
> avrdude: safemode: hfuse reads as DC
> avrdude: safemode read 1, efuse value: 1
> avrdude: safemode read 2, efuse value: 1
> avrdude: safemode read 3, efuse value: 1
> avrdude: safemode: efuse reads as 1
> avrdude: erasing chip
> avrdude: Program enable command not successful. Retrying.
> avrdude: Program enable command not successful. Retrying.
> avrdude: Program enable command not successful. Retrying.
> avrdude: Program enable command not successful. Retrying.
> avrdude: Device is not responding to program enable. Check connection.
>
>
> Thanks,
>
> Daniel
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avrdude-ft245r-reset.patch
Description: Text Data