How to Flash a 75T or 100T DMA Card

Use the card’s service JTAG port and only the driver, tool, model setting, and BIN file intended for its exact FPGA family. A file selected by guesswork can leave the card unusable.

Preparation

1. 1
   Download and fully extract the DATA DISTRICT DMA archive. Do not run tools from inside the compressed file.
2. 2
   Connect the cable to the card’s JTAG / Update port and directly to the secondary PC.
3. 3
   Install JtagDrivers.exe or the driver included for the card interface, then restart the tool as administrator.

Connect over JTAG

1. 1
   Keep the firmware BIN file in a simple local folder and confirm that it belongs to the exact card and FPGA family.
2. 2
   Do not rename or substitute files unless the supplied instructions explicitly require it.
3. 3
   Close other applications that may access the USB device and prevent Windows from sleeping during the write.

75T and 100T settings

1. 1
   Run CH347FpgaDownloadTool.exe as administrator.
2. 2
   For a 75T card choose xc7a75t; for a 100T card choose xc7a100t.
3. 3
   Set File Type to BIN and Hardware Clock to 10000000.

Write the firmware

1. 1
   Select the correct firmware BIN file and start the download/write operation.
2. 2
   Do not disconnect USB, power off either PC, close the tool, or allow sleep while the progress indicator is active.
3. 3
   Wait for a successful completion message, close the tool, shut both computers down completely, and disconnect the service cable.
4. 4
   Reconnect the normal DATA port, cold-boot the systems, reinstall the FTDI driver if required, and run the full DMA Test.

Verify the result