Wednesday, 19 August 2009

Troubleshooting: Day 1

Last night I noticed that the NBEK IC did not have a decoupling capacitor right next to it. Whilst there is one on the Vcc rail, it really is located too far away to be effective at controlling ripple. It was a long shot, but I thought this might actually cure the problem. It didn't.

We've also taken the null modem cable out of the equation as well as the RS232 to TTL converter on the transmitter side.

More kit allowing diagnostics turns up tomorrow.

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