DMA ERROR HELP PLEASE

[CentryRise]

Hi ive recently bought a dma card from ducks services and keep receiving the error
ERROR - DEVICE: FPGA: ERROR: Unable to connect to USB/FT601 device [0,v0.0,0000]

as well as this error when trying to flash firmware

Open On-Chip Debugger 0.11.0+dev-00706-g822097a35-dirty (2022-09-29-16:46)
Licensed under GNU GPL v2
For bug reports, read

Info : only one transport option; autoselect 'jtag'
adapter speed: 10000 kHz

xc7_program
jtagspi_program
Info : clock speed 10000 kHz
Error: JTAG scan chain interrogation failed: all ones
Error: Check JTAG interface, timings, target power, etc.
Error: Trying to use configured scan chain anyway...
Error: xc7.tap: IR capture error; saw 0x3f not 0x01
Warn : Bypassing JTAG setup events due to errors
Error: JTAG scan chain interrogation failed: all ones
Error: Check JTAG interface, timings, target power, etc.
Error: Trying to use configured scan chain anyway...
Error: xc7.tap: IR capture error; saw 0x3f not 0x01
Warn : Bypassing JTAG setup events due to errors
Error: Unknown flash device (ID 0xffffff)

Info : Close the CH347.

ive checked usb connection and tried different slots and cables
all virtulization etc is disabled
ive changed power plans
ive changed pcie slots
ive done cold reboots
ive factory reset windows on both pcs

[bagelnewt]

Did u install ur CH347 and FT601 drivers? Is the cable plugged in to the right port on the dma card?

[CentryRise]

Originally Posted by bagelnewt

Did u install ur CH347 and FT601 drivers? Is the cable plugged in to the right port on the dma card?

yes and yes

[NexusShop]

I can help you solve the problem. I need to know what brand of DMA you purchased, and I also need pictures.

[Neraz1m]

You can flash it on Ubuntu with open source tools. ChatGPT will help you.

[cold303]

if you find a fix please update I don't know what to do

[AimHelpers]

Originally Posted by cold303

if you find a fix please update I don't know what to do

Whod you buy your card from?

[cold303]

captaindma

Originally Posted by GamerTools

Whod you buy your card from?

it works fine when i speedtest in data port but jtag is just dead

[Ducks Services]

Which DMA card do you have? My support team is probably able to fix this if you wanna reach out . If the card isn't DOA they will get you up operational

[t4co]

Originally Posted by cold303

captaindma




it works fine when i speedtest in data port but jtag is just dead

Just contact captaindma
They should be able to fix your issue

[ixxxchel]

I have the same problem with my ZDMA. Any solution?
I installed all the drivers. I believe.

DEVICE: FPGA: ERROR: Unable to connect to FPGA device [0,v0.0,0000]
MemProcFS: Failed to connect to memory acquisition device.
10/10/2025 03:03:53 [ Infor ] -> ?????
????,?????

[timwithxim]

Originally Posted by CentryRise

Hi ive recently bought a dma card from ducks services and keep receiving the error
ERROR - DEVICE: FPGA: ERROR: Unable to connect to USB/FT601 device [0,v0.0,0000]

as well as this error when trying to flash firmware

Open On-Chip Debugger 0.11.0+dev-00706-g822097a35-dirty (2022-09-29-16:46)
Licensed under GNU GPL v2
For bug reports, read

Info : only one transport option; autoselect 'jtag'
adapter speed: 10000 kHz

xc7_program
jtagspi_program
Info : clock speed 10000 kHz
Error: JTAG scan chain interrogation failed: all ones
Error: Check JTAG interface, timings, target power, etc.
Error: Trying to use configured scan chain anyway...
Error: xc7.tap: IR capture error; saw 0x3f not 0x01
Warn : Bypassing JTAG setup events due to errors
Error: JTAG scan chain interrogation failed: all ones
Error: Check JTAG interface, timings, target power, etc.
Error: Trying to use configured scan chain anyway...
Error: xc7.tap: IR capture error; saw 0x3f not 0x01
Warn : Bypassing JTAG setup events due to errors
Error: Unknown flash device (ID 0xffffff)

Info : Close the CH347.

ive checked usb connection and tried different slots and cables
all virtulization etc is disabled
ive changed power plans
ive changed pcie slots
ive done cold reboots
ive factory reset windows on both pcs

did you ever figure out what the issue was?

[AntTheAntster]

There are several YouTube videos about fixing these kinds of issues. ChatGPT can also help, Ducks Services have excellent support for all the products sold on their website as well.

My best thoughts on the issue though is that if it isn't a bios issue (JTAG error so mainly Bios settings on second pc) or a cable issue then it Sounds like a bad card. Specifically bad JTAG port.