digic8:registers
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digic8:registers [2022/02/20 16:01] – [LV peaking (Highlights / zebra)] kitor | digic8:registers [2022/02/21 23:03] (current) – [LV peaking (Highlights / zebra)] kitor | ||
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Registers used by '' | Registers used by '' | ||
- | Directly poking HDMI registers doesn' | + | Different addresses and slightly different values than Digic 6/7, but capabilities are very similar. |
- | On EOS R it was possible to display independently configured | + | __It is possible to have independent |
+ | |||
+ | ===Note on directly writing the registers=== | ||
+ | Directly writing some registers doesn' | ||
+ | |||
+ | TL;DR is that you need to find (via xrefs / static code analysis) where reg value is stored, and update that memory address instead. | ||
===Enable register=== | ===Enable register=== | ||
Line 49: | Line 54: | ||
Value written should be masked '' | Value written should be masked '' | ||
+ | |||
+ | This register lies in **Display registers** range and most likely has more meanings. | ||
===Threshold / style register=== | ===Threshold / style register=== | ||
Line 65: | Line 72: | ||
Value written should be masked '' | Value written should be masked '' | ||
- | ^ Field ^ Range ^ Description ^ | + | ^ Field ^ Range ^ Description ^ |
| visibility | | visibility | ||
| speed | 0-3 | lines/dots are moving slower -> faster | | speed | 0-3 | lines/dots are moving slower -> faster | ||
Line 73: | Line 80: | ||
| underexpo_th | 0-255 | Threshold on undexexpo register, ignored on overexpo | | underexpo_th | 0-255 | Threshold on undexexpo register, ignored on overexpo | ||
| overexpo_th | | overexpo_th | ||
+ | |||
+ | **Note: On HDMI max threshold is 0xE8** Values above that are not displayed! | ||
===Color register=== | ===Color register=== | ||
Line 82: | Line 91: | ||
Code suggests there are more registers: | Code suggests there are more registers: | ||
- | ^ Output | + | ^ Output ^ Reg ^ Addresses |
- | | HDMI(?) | Enable | + | | HDMI |
- | | LCD(? | + | | LCD | Enable |
- | | HDMI(?) | Threshold | '' | + | | HDMI |
- | | HDMI(?) | Color | '' | + | | HDMI |
- | | LCD(? | + | | LCD | Threshold | '' |
- | | LCD(? | + | | LCD | Color | '' |
n values above 0 and m values above 1 are not understood. There' | n values above 0 and m values above 1 are not understood. There' |
digic8/registers.1645369274.txt.gz · Last modified: 2022/02/20 16:01 by kitor