VDI-RODERICO

[kroman01]

videos from glcd_test6

https://www.youtube.com/watch?v=QLMmKUjkD9c

https://www.youtube.com/watch?v=fGAlLQJNO98

https://www.youtube.com/watch?v=zvXeRCAJ0VM

movie from P16F886_beta1

https://www.youtube.com/watch?v=P7uYgdptTQw

[roderico]

I removed the labels -180/180 and -90/90 to see how it looks and estimated the +/- 600 mV for channel Y for testing...

[roderico]

if you have the datasheet of your lcd and if it is not very different than ks0108 I might have some time to have a look...
could you estimate the saturation voltage of channel Y in your vdi? a quick way to see it would be with the scope view and turning off the axis autoscale, the strength at vdi=0 and 90 would give you the voltages of X and Y, respectively, e.g. with a small piece of foil y~0 and with a silver coin (or with your stones) x~0. For X is about 2.50V and for Y I found ~1.96V when calibrated, or if possible with a direct measurement. As it depends on the RT value it might be necessary to set it manually instead of using an approximate value...

[kroman01]

you do not have to change anything, the range 180,180 is to remain, the typical RT2 setting is 1/4 1/5 scale
will there be a problem to compile the versions under the RA8808 controller

[roderico]

ok very good, the mcu sees the voltage drop through RT2 and then two different saturation levels for X and Y channels. A possible way to implement this would be to estimate the new value for Y and use two different saturation levels to indicate the saturation due to channel Y. It might be good to remove -180/180 and use -90/90 instead but it might be better to leave the vertical lines for -45/45 since they help to find easily what the values of the bars are...

[kroman01]

minor visual corrections in the histogram view -90/90 marked for deletion -180/180 none -90 90 I see that adding -90 will result in lack of space
these corrections are not necessary


i found the reasons for trimming negative indications, in the twist setting RT2 affects this effect, U1 works properly and enters saturation with the same levels for positive and negative waveforms, RT2 should be on the X Y input

[kroman01]

glcd_test5 movies

https://www.youtube.com/watch?v=kKYZVew4zlk

https://www.youtube.com/watch?v=SZkUXlaUO0k

https://www.youtube.com/watch?v=jfJZYxu6rFM

[roderico]

try this one instead, it should fix the problem...

[kroman01]

glcd_test5 works but I see SW1 swapped SW3 when I choose views

[roderico]

maybe you could use this updated version for the tests, you can change between the three views on the fly by pressing SW2 without going through the menus...

[kroman01]

in Fortuna M3 it is necessary to initialize the appropriate driver during the start of the firmware

[roderico]

ok no problem, I'm afraid that RA8808 needs a different driver, so it is very likely that it won't work...

[kroman01]

I threw the test4 and it works, the histogram is set to -90/90, as I wanted, I have a night in Poland, tomorrow I will do field tests and films, 12 hours wait
greetings

[roderico]

doesn't version test4 work with the vdi shown in your video?

[kroman01]

I have glcd with RA8808 controller, it should be compatible with KS0108, but I do not want to work or would not be able to do something about it
Fortuna M3 operates with RA8808 and with KS0108