From c06e2486abda43205a490fc6b233f72f34667857 Mon Sep 17 00:00:00 2001 From: Fred Sundvik Date: Sat, 5 Nov 2016 22:45:21 +0200 Subject: [PATCH] Increase the infinity60 system tick frequency --- keyboards/infinity60/chconf.h | 2 +- keyboards/infinity60/matrix.c | 7 ++++++- 2 files changed, 7 insertions(+), 2 deletions(-) diff --git a/keyboards/infinity60/chconf.h b/keyboards/infinity60/chconf.h index 43c84573..d9114ec8 100644 --- a/keyboards/infinity60/chconf.h +++ b/keyboards/infinity60/chconf.h @@ -48,7 +48,7 @@ * @details Frequency of the system timer that drives the system ticks. This * setting also defines the system tick time unit. */ -#define CH_CFG_ST_FREQUENCY 1000 +#define CH_CFG_ST_FREQUENCY 100000 /** * @brief Time delta constant for the tick-less mode. diff --git a/keyboards/infinity60/matrix.c b/keyboards/infinity60/matrix.c index 62c165aa..d2f18528 100644 --- a/keyboards/infinity60/matrix.c +++ b/keyboards/infinity60/matrix.c @@ -96,7 +96,12 @@ uint8_t matrix_scan(void) } #endif - wait_us(1); // need wait to settle pin state + // need wait to settle pin state + // if you wait too short, or have a too high update rate + // the keyboard might freeze, or there might not be enough + // processing power to update the LCD screen properly. + // 20us, or two ticks at 100000Hz seems to be OK + wait_us(20); // read col data data = (palReadPort(GPIOD)>>1);