From 24cd5dd33ccf65c1b277911c460a89ec2b52e421 Mon Sep 17 00:00:00 2001 From: Keith Packard Date: Sun, 9 Apr 2017 12:53:34 -0700 Subject: [PATCH] altos: Drive row low instead of high in matrix driver Driving it high won't work all that well as we're looking for zero bits. Signed-off-by: Keith Packard --- src/drivers/ao_matrix.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/drivers/ao_matrix.c b/src/drivers/ao_matrix.c index e0f8ba75..fa2d0c57 100644 --- a/src/drivers/ao_matrix.c +++ b/src/drivers/ao_matrix.c @@ -89,9 +89,9 @@ _ao_matrix_read_cols(void) static uint8_t _ao_matrix_read(uint8_t row) { uint8_t state; - _ao_matrix_drive_row(row, 1); - state = _ao_matrix_read_cols(); _ao_matrix_drive_row(row, 0); + state = _ao_matrix_read_cols(); + _ao_matrix_drive_row(row, 1); return state; } -- 2.30.2