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« on: July 27, 2010, 05:31:29 AM » |
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I didn't pay for the overpriced JTAG box that Globalscales sells as an option with the GuruPlug. Now I'm trying to get serial console access to the 4-pin 3.3V UART connector. Has any one been successful in finding a male connector for this port (e.g. on Digikey)? If anyone has a hi-res photo of the actual UART connector that comes on the official JTAG breakout box, that would be very helpful!
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« Last Edit: July 27, 2010, 06:13:12 AM by nocnokneo »
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two9er
Jr. Member
Karma: 10
Posts: 51
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« Reply #1 on: July 27, 2010, 07:51:30 AM » |
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Resolution to 1/100 inch:
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« Last Edit: July 27, 2010, 08:15:06 AM by two9er »
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Just plugging away! GuruPlug Server Plus, 1TB esata hd, 8GB microSD (rfs)
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« Reply #2 on: August 01, 2010, 08:05:09 PM » |
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« Reply #3 on: August 12, 2010, 03:33:09 AM » |
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Did this work for you? From the pictures it looks to me like the pitch is 1.0 mm not 1.25 mm.
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« Reply #4 on: September 09, 2010, 06:16:40 AM » |
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Yep, this connector worked for me and UART connection is up and running!
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« Reply #7 on: October 30, 2010, 12:37:39 PM » |
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Thank you. But my question is: what JTAG adapter did you use to connect it to the PC? There are hundreds of JTAG boards out there, even with the same chip as the one sold Globalscale Technologies, Inc. overpriced. Do you use a cheaper model? Can you share the connection schematic?
Million thanks in advance.
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« Reply #8 on: October 30, 2010, 12:40:50 PM » |
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It sounds like we have different goals. I just wanted access to the TTL-level UART signals TX, RX, and GND. If you want access to the JTAG signals you will have to go to a lot of hassle to *maybe* save $10 over the official JTAG connector that Global Scale offers.
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« Reply #9 on: October 30, 2010, 12:50:23 PM » |
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What did you use for the TTL-level UART signals, and how? Did you connect it to a serial port?
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« Reply #10 on: October 30, 2010, 12:55:52 PM » |
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*maybe* save $10 over
Unfortunately it's not a 'maybe'. Shipping doubles the price. |
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« Reply #11 on: October 30, 2010, 01:15:57 PM » |
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We used a FTDI USB-Serial chip (like what you find at sparkfun.com). It accepts 3.3-level UART so there was nothing else needed.
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« Reply #12 on: December 11, 2010, 04:57:48 PM » |
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