Date: Thu, 21 Apr 2022 19:05:19 +0200 From: Axel Rau <Axel.Rau@Chaos1.DE> To: hardware@freebsd.org, "hps@selasky.org tomek"@cedro.info Subject: [RESOLVED] Re: timeouts on USB ISP programmer Message-ID: <77ae0110-0b36-8c00-c40e-efd110843f60@Chaos1.DE> In-Reply-To: <3A781DFA-1E2C-41A5-8053-C90A806244DC@Chaos1.DE> References: <3A781DFA-1E2C-41A5-8053-C90A806244DC@Chaos1.DE>
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Hi Hans, Tomek, all
Am 07.04.22 um 13:33 schrieb Axel Rau:
> my DIAMEX-AVR-USB gets timeouts while talking to the target:
> - - -
With the trace, recorded by Joerg Wunsch (author of avrdude),
Hans found the implementation bug in the device.
He wrote to Joerg:
=3D=3D=3D=3D
I see from the Ellisys .png's what is wrong. The device doesn't support
resetting the data-toogle (CLEAR ENDPOINT HALT) which is a mandatory USB
control endpoint command. So the USB stack tries a couple of times and =
then
gives up and resets the device!
The device is not USB.org class compliant! :-(
Probably setting:
sysctl hw.usb.no_cs_fail=3D1
may help.
=3D=3D=3D=3D
Indeed with this setting the device works perfectly:
- - -
root@home2l:/usr/local/home2l/share/brownies # avrdude -c stk500v2 \
-p t85 -P /dev/cuaU0 \
-U hfuse:w:init.t85.elf \
-U efuse:w:init.t85.elf \
-U eeprom:w:init.t85.elf \
-U flash:w:init.t85.elf
avrdude: AVR device initialized and ready to accept instructions
Reading | ################################################## | 100% 0.00s
avrdude: Device signature =3D 0x1e930b (probably t85)
avrdude: NOTE: "flash" memory has been specified, an erase cycle will be=20
performed
To disable this feature, specify the -D option.
avrdude: erasing chip
avrdude: reading input file "init.t85.elf"
avrdude: input file init.t85.elf auto detected as ELF
avrdude: writing hfuse (1 bytes):
Writing | ################################################## | 100% 0.01s
avrdude: 1 bytes of hfuse written
avrdude: verifying hfuse memory against init.t85.elf:
avrdude: load data hfuse data from input file init.t85.elf:
avrdude: input file init.t85.elf auto detected as ELF
avrdude: input file init.t85.elf contains 1 bytes
avrdude: reading on-chip hfuse data:
Reading | ################################################## | 100% 0.00s
avrdude: verifying ...
avrdude: 1 bytes of hfuse verified
avrdude: reading input file "init.t85.elf"
avrdude: input file init.t85.elf auto detected as ELF
avrdude: writing efuse (1 bytes):
Writing | ################################################## | 100% 0.01s
avrdude: 1 bytes of efuse written
avrdude: verifying efuse memory against init.t85.elf:
avrdude: load data efuse data from input file init.t85.elf:
avrdude: input file init.t85.elf auto detected as ELF
avrdude: input file init.t85.elf contains 1 bytes
avrdude: reading on-chip efuse data:
Reading | ################################################## | 100% 0.00s
avrdude: verifying ...
avrdude: 1 bytes of efuse verified
avrdude: reading input file "init.t85.elf"
avrdude: input file init.t85.elf auto detected as ELF
avrdude: writing eeprom (50 bytes):
Writing | ################################################## | 100% 0.07s
avrdude: 50 bytes of eeprom written
avrdude: verifying eeprom memory against init.t85.elf:
avrdude: load data eeprom data from input file init.t85.elf:
avrdude: input file init.t85.elf auto detected as ELF
avrdude: input file init.t85.elf contains 50 bytes
avrdude: reading on-chip eeprom data:
Reading | ################################################## | 100% 0.02s
avrdude: verifying ...
avrdude: 50 bytes of eeprom verified
avrdude: reading input file "init.t85.elf"
avrdude: input file init.t85.elf auto detected as ELF
avrdude: writing flash (1976 bytes):
Writing | ################################################## | 100% 0.86s
avrdude: 1976 bytes of flash written
avrdude: verifying flash memory against init.t85.elf:
avrdude: load data flash data from input file init.t85.elf:
avrdude: input file init.t85.elf auto detected as ELF
avrdude: input file init.t85.elf contains 1976 bytes
avrdude: reading on-chip flash data:
Reading | ################################################## | 100% 0.71s
avrdude: verifying ...
avrdude: 1976 bytes of flash verified
avrdude: safemode: Fuses OK (E:FE, H:D7, L:62)
avrdude done. Thank you.
- - -
diamex.de has been notified about the bug.
Man thanks to all, who responded, especially Hans and Tomek,
Axel
=2D-=20
PGP-Key: CDE74120 =E2=98=80 computing @ chaos claudius
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