Products > Test Equipment
New bench scope - Fnirsi 1014D, 7", 1GSa/s
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pcprogrammer:
Hi konst-72,

Welcome to the forum.

The clock generator chip is I2C programmable and the two clock outputs are used for different tasks in the FPGA. There is a channel that is used for the main clock and that is fixed at, if not mistaken, 50MHz, and the other channel is used for the sampling clock of the arbitrary waveform generator. It is set by the software up to a maximum of 200MHz.

Just replace the chip with a new one and the configuration is taken care of by the firmware.

The FPGA can be replaced and will get its configuration from the second FLASH chip that can be found in the 1014D. No need to use the JTAG interface. Best to make sure the FLASH chips are also good and the data within them is still valid. As there possibly are versions that use a different FPGA then the one I have, it is best to post the type tag of it here and ask if any one has the proper FLASH content for it.

Mine has the Anlogic AL3-10 in it, and the FLASH contents is attached below. (Remove the .txt extension)
konst-72:
Thank you for your prompt reply. Now I understand how the FPGA is clocked. The MS5351M chip has already been ordered and is on its way to me. I looked carefully at your 1014D schematic diagram and saw that the FPGA clock generator is programmed from the microcontroller. I hope one problem has been solved.
Now I will order the FPGA chip. I hope this one will work. I think the FPGA FLASH is intact, because the signals on the screen are generally displayed correctly, but there is a problem with the clocking.
Once again, thank you very much for the valuable information on the oscilloscope here and on GitHub.
pcprogrammer:
The board with the FPGA will do the trick. I have used that same board for testing while I was experimenting with the 1013D FPGA reversal. The 1013D uses the same FPGA as the 1014D I have, and yours looks the same.

Good luck with soldering and check out the thread on the reverse engineering of the 1014D. It provides new open source firmware, but it is not finished and I don't know if and when it will be. Lots of other projects to do that take up a lot of time.
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