Hi all.
I recently gutted a Fischer-price Laughtop and I was thinking if
I could use its keyboard (a 5x6 scan matrix keyboard without diodes)
instead of hardwiring a DIN module input to each key.
Is there some information regarding the use of such scan matrix
keyboards where I could read how to take advantage of the
build in keyboard?
Photos follow..
If you’ve luck, it will work with the DEFAULT_SRM_* feature, which is described in the setup_*.asm file
You have to assign a free DIN and DOUT register, buttons will be available with SR=16+1..16+8 in CS_MENU_DIN_TABLE thereafter.
If this doesn’t work, you will have to do some experiments with the sm_example1 application which is available at the MIOS download page (programming knowledge required). Once you found out, how to scan the buttons correctly, we could try to integrate the required changes into the MBSID firmware.
Best Regards, Thorsten.
