DIY prototype RPN/TENKEY programmable calc with printer <:3)--
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02-20-2021, 07:46 PM
Post: #14
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RE: DIY prototype RPN/TENKEY programmable calc with printer <:3)--
Here is FPGA VGA implementation, along with some other features.
That includes: -3 modes of operation for VGA screen(NORMAL, MEMORY and printer emulation), those modes are fully independent of alphanumeric LCD display modes. -External SPI flash (W25Q64) for permanent program storage. -Programs can have 16 character alphanumeric names (to make them easy to find on external SPI flash). -Conditional jumps are now a thing, better late than never ;-) -Same with subroutines. -PRINT display mode, it shows 2 most recently printed lines on left LCD screen and 4 lower levels of RPN stack on right screen. That mode works even with external printer disabled. -Backspace function added, you can backspace numerical and alphanumerical input. |
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