15 May
2008
15 May
'08
11 a.m.
At Thu, 15 May 2008 09:21:02 +0200, Clemens Ladisch wrote:
Pavel Hofman wrote:
Actually, when does the MPU_TX interrupt get thrown? Upon exhausting some output buffer?
According to the datasheet, when the number of bytes in the TX FIFO goes below the watermark value (for some unspecified value of "below").
Is there a reason why the watermarks are set to 1 and not to 0?
We got TX IRQ storm when it was 0, according to Pavel.
Anyway, this hardware is not compatible with the MPU-401, so we should not try to twist the MPU-401 code into working with it.
Agreed. I thought it's enough similar to the real MPU401, but it's getting nastier.
thanks,
Takashi