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authorMichael Stapelberg <stapelberg@users.noreply.github.com>2021-05-19 22:43:36 +0200
committerGitHub <noreply@github.com>2021-05-20 06:43:36 +1000
commit82aa9ad4a567695d1f7d0b1e36bf8563d2967813 (patch)
tree4f27b34928fb3ddbfaf0af8cde0ce701721bd624 /quantum/split_common/post_config.h
parent068af97b7aac1fc787b5e9fb76d9250d48638e58 (diff)
matrix: wait for row signal to go HIGH for every row (#12945)
I noticed this discrepancy (last row of the matrix treated differently than the others) when optimizing the input latency of my keyboard controller, see also https://michael.stapelberg.ch/posts/2021-05-08-keyboard-input-latency-qmk-kinesis/ Before this commit, when tuning the delays I noticed ghost key presses when pressing the F2 key, which is on the last row of the keyboard matrix: the dead_grave key, which is on the first row of the keyboard matrix, would be incorrectly detected as pressed. After this commit, all keyboard matrix rows are interpreted correctly. I suspect that my setup is more susceptible to this nuance than others because I use GPIO_INPUT_PIN_DELAY=0 and hence don’t have another delay that might mask the problem.
Diffstat (limited to 'quantum/split_common/post_config.h')
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