On Fri, Mar 06, 2020 at 07:00:44PM +0000, Michael Hanselmann wrote:
> HL340 devices, a subset of all CH340 devices, do not work correctly when
> the highest prescaler bit (0b100) is set. Limit these to the lower
> prescaler values at the cost of timing precision.
When we discussed this off list, you said that your device could handle
the highest prescaler bit being set for some rates. You specifically
confirmed that the 576000 and 921600 rates worked, while 110, 134 and
200 did not.
Could you reconfirm which, if any, of the following rates work with the
current driver?
1152000
921600
576000
200
134
110
Perhaps we can still continue supporting the higher rates, which are way
off unless using the factor-2 prescaler.
Johan
