Hi! I'm trying to get I2C and/or SPI running on a 857 board. Register settings and BDs look good. But when the start command is issued nearly nothing happens as if there would be no clock. TxBDs have ready bit set. Both ports initialize the internal BD pointer. SPI is changing the clock line to inactive level (once). But that's all. Couldn't find an errata that fits. Only the stuff with Parameter RAM relocation but I can live with the default location...
Is there anyone who has an idea? Thanks, Stephan P.S.: Are the BD offsets counted from IMMR base, DPRam base or ...? ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
