From: Chris E. <roo...@gm...> - 2006-11-09 09:27:16
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Hey Dave, I managed to get everything booting without a tweener, and SCL is still being held low. Try doing this: > > modprobe proc_gpio > echo "GPIO out set" > /proc/gpio/GPIO81 > > and then press the spacebar while i2c-test is running. Do you see any > changes? GPIO 81 is the NSSP_CLK pin, which is immediately adjacent to > SCL on the hirose connector (SDA is next to it on the other side). > > Next thing to try is to take the SCL pin on the UARTS connector (pin > 16) and verify that there is no connection with ground (using a > multimeter). If it's not shorted to ground then you can try connecting > it to pin 14, which is +5. Press the space bar while the i2c-test > program is running. DO you see any change? > I tried setting GPIO 81, but I still get the same output from i2c-test. I don't have a multimeter readily available, so I'll post the rest of my results tomorrow evening. |