Configurable SDIO Clocking #197
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These changes are designed to try and mitigate the effects of using BlueSCSI in a high-EMI environment. High-noise environments are causing disruption of the SDIO bus, which usually manifests as disk image write issues and log entries such as the following:
SDIO card reports write CRC error, status 0x000000EBThis mitigation does result in an overall read/write speed decrease. On my PowerMac 7300, max read speeds usually run around 8000k and max write speeds around 4800k. With mitigation level 2 in place this drops to 7000k read and 3800k write.
To configure this mitigation, place these lines in your bluescsi.ini file. Only
1and2are valid for this configuration, with increasing slowdown when 2 is specified.