TF CD32 Riser Revision 2 Design Complete

[arkadiusz.makarenko]

Ok. I have setup to carry on working on firmware.
It is not my CD32. I am not sure if my CD32 is flaky, or Riser actually messes up with my CD32. As sync is lost ocasionally and keyboard just sometimes work. Every 3rd or something keyboard press. (On diagrom)

I hooked up Riser to my Amiga 500 keyboard port, and responsivness is perfect. Clock pulse tolerance is enormous as well.

[arkadiusz.makarenko]

Wow. Current ST usb library implementation for keyboard is very very buggy, if I press more than 4 buttons, they change value to 1 .... This messes up with depressing buttons.
I will revert library to f105 version and see if this helps.

[arkadiusz.makarenko]

I did find some issues with keybaord behaviour. Issue is that if multiple buttons (more than 4 or 5) are pressed then weird values appear on reading report. It may be overflow, but each time values are the same.
I will poke this more, I just hope I will not have to implement keyboard report parser, and still will be allowed to use keyboard in boot mode.

I pushed changes to repository. Current implementation may not be ideal, but should be pretty much usable.

[terriblefire]

I did find some issues with keybaord behaviour. Issue is that if multiple buttons (more than 4 or 5) are pressed then weird values appear on reading report. It may be overflow, but each time values are the same.
I will poke this more, I just hope I will not have to implement keyboard report parser, and still will be allowed to use keyboard in boot mode.

I pushed changes to repository. Current implementation may not be ideal, but should be pretty much usable.

Thanks i'll try that out tomorrow along with a TF330 rev 3 that @supaduper sent me.

[arkadiusz.makarenko]

I spent some time trying to understand how usb keyboards send data. Hid report is 8 bytes, and it seems that it can record up to 4 main keys at the same time (I assume special keys like shift, alt etc are recorded separately). Above this report records all keys as 01.

Now I have a bug which doesn't register depressed buttons correctly. It may be simple as not clearing one of variables correctly. And I need to think how to handle "overflow" of keys pressed on usb keyboard.

[terriblefire]

I spent some time trying to understand how usb keyboards send data. Hid report is 8 bytes, and it seems that it can record up to 4 main keys at the same time (I assume special keys like shift, alt etc are recorded separately). Above this report records all keys as 01.

Now I have a bug which doesn't register depressed buttons correctly. It may be simple as not clearing one of variables correctly. And I need to think how to handle "overflow" of keys pressed on usb keyboard.

Apologies.. ive not had a chance to test. Couple of things i've found..

My ATX PSU is low voltaging out at 4.2v ... annoying.

I've been debugging the CD32 ITX Clone.

[arkadiusz.makarenko]

I spent some time trying to understand how usb keyboards send data. Hid report is 8 bytes, and it seems that it can record up to 4 main keys at the same time (I assume special keys like shift, alt etc are recorded separately). Above this report records all keys as 01.

Now I have a bug which doesn't register depressed buttons correctly. It may be simple as not clearing one of variables correctly. And I need to think how to handle "overflow" of keys pressed on usb keyboard.

Apologies.. ive not had a chance to test. Couple of things i've found..

My ATX PSU is low voltaging out at 4.2v ... annoying.

I've been debugging the CD32 ITX Clone.

I don't think it is worth testing yet. Need to solve this missed depressed buttons issue first.

[Homer79]

I knew I was an article about this a while ago, I was sure it was 6 buttons for usb keyboards

http://xahlee.info/kbd/keyboard_n-key_r ... sting.html

[arkadiusz.makarenko]

I knew I was an article about this a while ago, I was sure it was 6 buttons for usb keyboards

http://xahlee.info/kbd/keyboard_n-key_r ... sting.html

I will have a look at this. Thank you.

Question is if it is any key. I will need to desypher HID report itself (it is painful). It may be 4 allocated for general keys and additional 2 for special keys like shift, ale enter etc?
Report has 8 bytes, which first byte is most likekly ReportID.

[terriblefire]

I knew I was an article about this a while ago, I was sure it was 6 buttons for usb keyboards

http://xahlee.info/kbd/keyboard_n-key_r ... sting.html

I will have a look at this. Thank you.

Question is if it is any key. I will need to desypher HID report itself (it is painful). It may be 4 allocated for general keys and additional 2 for special keys like shift, ale enter etc?
Report has 8 bytes, which first byte is most likekly ReportID.

Honestly cant think of any situation where more than 4 keys are needed at the same time.

S