Products > Test Equipment

JunTek PSG9080 Programmable Signal Generator (80 MHz - 300 MSa/s - 14-bit)

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fjalvingh:
I am wondering if anyone has any idea what this chip is in the picture, and what those connectors might be?

radiolistener:

--- Quote from: fjalvingh on June 26, 2021, 08:50:23 am ---I was sent firmware by the shop that differs from the JOY-IT firmware, and it does end in 5678. So the hope would be that this is the MCU software for this device. It is hard to say because there is no recognisable data in the file; it looks to be either compressed or encrypted. I've added in the attachment, perhaps you might find it of use.

--- End quote ---

hm... your firmware file is really marked as MCU update v1.20.

But I never seen this firmware update on Juntek site... What seller said about it?

I think it may be correct firmware, but it may needs also FPGA update file.
Probably your current FPGA firmware is not compatible with this MCU firmware.



fjalvingh:

--- Quote ---But I never seen this firmware update on Juntek site... What seller said about it?
--- End quote ---
Well, the seller tells me he is in communication with Juntek about the issue, and after sending me the same (FPGA) update a few times I was able to make him understand that that update really did not work. So then he came with this one a few days after.

So, by itself I seem to have both an FPGA update file AND a MCU update file. I just do not have any way to get them where they belong..

You told me you traced the mcu jtag pins; do you happen to remember the pinout? I did trace it to the pins on the unmarked chip but I cannot make much sense of it; I see most of the pins go to pins on the chip that seem to be unrelated to jtag..

radiolistener:

--- Quote from: fjalvingh on June 29, 2021, 08:33:50 pm ---So, by itself I seem to have both an FPGA update file AND a MCU update file. I just do not have any way to get them where they belong..
--- End quote ---

can you share all firmware files provided by seller?


--- Quote from: fjalvingh on June 29, 2021, 08:33:50 pm ---You told me you traced the mcu jtag pins; do you happen to remember the pinout? I did trace it to the pins on the unmarked chip but I cannot make much sense of it; I see most of the pins go to pins on the chip that seem to be unrelated to jtag..

--- End quote ---

I traced JTAG connector for a front panel board with STM32 controller (with display and buttons).

The connector on FPGA board looks like XILINX JTAG, but I'm not familiar with XILINX FPGA, I'm working with Altera/Intel chips. So I know nothing about XILINX... I think unmarked IC may be some buffer to protect FPGA pins, because they are very gentle

fjalvingh:

--- Quote from: radiolistener on June 30, 2021, 03:12:31 am ---can you share all firmware files provided by seller?

--- End quote ---
Well, the other one is the one widely available, with the 0-256okh.bin file.


--- Quote from: radiolistener on June 30, 2021, 03:12:31 am ---I traced JTAG connector for a front panel board with STM32 controller (with display and buttons).

--- End quote ---
Can you tell me what you found? Because I could not really connect the pinout with the assumed stm32f103rct6. The pins I traced do not seem to go to jtag pins.

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