$f101 may be related to imager
For $f101, In 27_6410 firmware we find code that sets bits 1,2,3; bit 0 immediately after bit 5; bit 6 In 2B_6550, 2B_6600, 2F_6520, 28_6510, 28_6520, FF2, FF3 firmware also has code that separately sets bit 1, bit 2, and bit 3 The bits appear to never be cleared and are read only for the purpose of doing an OR with a value to set bits. I suspect it has something to do with initializing the imager. I'd really like to have the equipment to connect to the imager lines to verify which registers do what. Anyone have a logic analyzer or digital storage oscilloscope?
For $f101, In 27_6410 firmware we find code that sets bits 1,2,3; bit 0 immediately after bit 5; bit 6 In 2B_6550, 2B_6600, 2F_6520, 28_6510, 28_6520, FF2, FF3 firmware also has code that separately sets bit 1, bit 2, and bit 3 The bits appear to never be cleared and are read only for the purpose of doing an OR with a value to set bits. I suspect it has something to do with initializing the imager. I'd really like to have the equipment to connect to the imager lines to verify which registers do what. Anyone have a logic analyzer or digital storage oscilloscope?