JTAG
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Revision as of 23:52, 27 March 2009 by SSinyagin (Talk | contribs) (New page: I'm trying to get use of JTAG for U-Boot debugging and probably FPGA debugging in the future. This page is not yet finished, and the work is in progress. == Building a JTAG connector for ...)
I'm trying to get use of JTAG for U-Boot debugging and probably FPGA debugging in the future. This page is not yet finished, and the work is in progress.
Building a JTAG connector for apf27Dev board
List of material and part numbers at Conrad:
- 2x20-pin header, 2.54mm pitch (Conrad: 741973)
- ATA/IDE cable (Conrad: 971742)
- 2x10-pin IDC low profile header, 2.54mm pitch (Conrad: 743534)
- 20-way flat cable, 1.27mm pitch (Conrad: 609463)
- Solder the 40-in header onto the J19 connector on the apf27dev board
- Cut off a ~10cm piece from the ATA cable with the 40pin plug at the end.
- Cut off ~10cm from 20-way flat cable
- Carefully attach the 20-pin header to the flat cable. The thing is easy to break and it requires some forcing. Better buy a spare piece in advance.
- Use a knife and a cutting pad and dissect the cable endings, ~3cm long. Disssect the whole 20-way cable and pins 40 to 31 on the 40-way ATA cable.
- Strip the cable endings
- Solder the two cables together, as specified below
