Really low-quality, terrible video, but hopefully illustrating what is working so far:
Anvl-board generates video signal:
- Converted to CSYNC (composite sync) + RGB digital, goes to GBS8200 board towards VGA
- Raw (HSYNC+CSYNC+V2+V1) goes to Mercury board
- Scroll up/down is supported like real TIM
- Test signal mode has been added, it displays a 4 color box pattern
Mercury board captures the video signal:
- Incoming video signal is converted to memory bytes and stored in 32kB onboard RAM
- VGA controller reads the same RAM, applies a 4-color palette and outputs as 640*480, 60Hz
- Display outside TIM-011 512*256 window is filled with hard-coded ASCII characters (text display in the future)
- TIM window can be moved on VGA screen (it is centered initially)
Upcoming project logs will describe these in more details.
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