Damn, I wish our h/w designers had told us about these aic23 (who he?) on the board - to think of all those weeks and months we wasted developing DSP software to drive the modem codec through McBSP1 when there was a far easier solution sitting there on the board unused. It must be a VERY small chip though as it's managing to hide in both the schematics and a visual observation of the actual board!
Cliff
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--- Cliff Lawson clawson@amstrad.com wrote:
I'm just reporting what the I2C adapter told me, it's not my fault it's broken ;). Being serious, I'm surprised that it reported that the got an ack from the address of the aic23 code chip if there isnt one there, are there any I2C devices on the E3? If there was no device at the address I would expect either a nack which would mean that the aic23 codec driver would fail it's attach, or the bus operation would time out (if there was no pull-ups on the I2C bus).
Also please correct me if I'm wrong, I'm new to OMAP's, but isn't the DSP public peripheral bus available to the MPU via the MPUI and both MsBSP1 & 3 are on the DSP public peripheral bus so you don't need the DSP to use them.
Mark
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Cliff Lawson -
Mark Underwood