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Mike Frysinger wrote: |
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> On Sunday 14 October 2007, Jason wrote: |
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>> So what kind of wiring error would cause CTRL-C (0x03) and <CR> 0x0d to |
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>> not get passed correctly, but [a-zA-Z0-9] to go through okay? |
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> |
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> i dont think they are getting passed through ... i think your device is |
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> operating in loop back ... but i'm not an ee guy at all, i'm just posting |
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> some of my experience ... |
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> -mike |
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|
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I think I found the problem. I enabled debug in the ftdi_sio driver and |
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saw that it is echoing back what I type. It's status flags seems to be |
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jive with what I found on the net as being okay. But this guy [1] |
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mentions that the exact problem I'm having (subset: CTRL-C not making it |
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to RedBoot) is caused by flow control being enabled and the gw2348-4 |
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doesn't use it. |
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|
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So it looks like the FTDI cable either doesn't support disabling flow |
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control, or ftdi_sio isn't setting the flow control to none properly... |
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|
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However, this is mostly academic since I found a neat hack [2] to probe |
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for the board's ip, then telnet into Redboot and send CTRL-C within a 2 |
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second window. Between this and tftp, I should be able to do everything |
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I need to do. |
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|
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Jason |
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|
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[1] - http://www.me2000.net/wiki/index.php/Gateworks_Notes |
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[2] - http://www.nslu2-linux.org/wiki/HowTo/TelnetIntoRedBoot |
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"C program using Berkeley Sockets" |
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-- |
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