I am another one with CSPPC scsi problems. The scsi chain is correctly terminated and there is good termination power available. Have tried other cables, drives etc with the same result.
Something is obviously wrong and I accept that, however, by looking at the kernel.debug output, it looks like it will always set the interface speed to 20MHz/50ns synchronous:
cybppc.device: target 0 now synchronous, period=50ns, offset=14
As there obviously is an issue with something, it would be great if there was a way to turn down the scsi settings from 11. Being able to lower the speed to say 10MHz, setting it to asynchronous or setting the width to narrow etc could very likely make the interface useable.
I have tried changing the CSPPC boot menu settings (didn't really expect that to make a difference as this is a completely different driver) and unsetting the RDB synch flag on the drive (actually did expect that to work), but nothing have made any difference. Was thrilled when I found SYS:Kickstart/cybppc.config, but confusingly it has nothing to do with the actual hardware and only lets you change buffer settings?
So would be thrilled if anyone knows anything more about changing the scsi settings.
patrik wrote:The SCSI works running 20MHz wide in both in OS3.x and MorphOS 1.4.5, so apparently the phase5 driver is much more resilient and/or does something in another way which makes it better at coping with variations in hardware.
The driver in OS4.x usually locks up very early during the boot for me, so the level of how well it works is another dimension.
Just to clarify it again: I know something is wrong with my hardware, but it is nothing obvious and it works with the phase5 driver. Nothing obvious as in I have tried several different harddrive, cable and termination combinations and variations.
As the OS4.x driver seems to be rather picky, wouldn't it be a reasonable thing to be able to configure what speed it attempts to operate at to increase the percentage of CSPPC-equipped machines that can actually boot OS4.x?
Users browsing this forum: No registered users and 2 guests