libftdi Archives

Subject: RE: Could anyone spare a clue?

From: "Michael Plante" <michael.plante@xxxxxxxxx>
To: <libftdi@xxxxxxxxxxxxxxxxxxxxxxx>
Date: Mon, 23 Aug 2010 15:47:37 -0500
John Oyler wrote:
>> The schematic has two LEDs hooked up to B on BDBUS6 & 7. Would it
>> be difficult to make those blink?
>>
>> BDBUS0 & 1 are apparently IRQs, those are probably more important to me.
>>
>> A few other things are hooked up as well, though if I read the SX1211
data sheet correctly, those don't really interest me at all.

Maybe?  See if one of the bit-bang modes on interface B helps you; you'll
probably just have to try, as I've only used UART and MPSSE modes before.
You previously wrote:


>> To anyone that's curious, the schematic for the device in question is
>> located at
>> http://www.semtech.com/images/datasheet/sx1211mesh-868-915-semesh-um.pdf

...however, I did not see a schematic in there.  I only saw a block diagram.
Where is the schematic you're looking at?


>> So far, I have this: http://pastebin.com/FsRsDaXB
>>
>> It compiles without error. It runs without segfaulting. But the value I
read back from the register does not seem to be the value I put into it. In
>> fact, reading it twice, I get back a different value each time, usually
0x00, 0xfa and 0x8a.
>>
>> That's better than I was doing yesterday though.

Sorry, at present, I don't have time to look over the code, though someone
else here might.

Michael


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