From 7c5e58a7c49e43c06d704c0ef7e7dad6c0dbf960 Mon Sep 17 00:00:00 2001 From: midopple Date: Fri, 24 Feb 2012 14:00:51 +0100 Subject: Changhe PWM Value from INT to unsigned char, is faster for interrupt --- Sprinter/heater.cpp | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'Sprinter/heater.cpp') diff --git a/Sprinter/heater.cpp b/Sprinter/heater.cpp index 65f52e4..9d494b2 100644 --- a/Sprinter/heater.cpp +++ b/Sprinter/heater.cpp @@ -48,7 +48,7 @@ int current_bed_raw = 0; unsigned long previous_millis_heater, previous_millis_bed_heater, previous_millis_monitor; #ifdef PIDTEMP - int g_heater_pwm_val = 0; + volatile unsigned char g_heater_pwm_val = 0; unsigned char PWM_off_time = 0; unsigned char PWM_out_on = 0; @@ -402,7 +402,7 @@ int read_max6675() heater_duty = constrain(heater_duty, 0, HEATER_CURRENT); #ifdef PID_SOFT_PWM - g_heater_pwm_val = heater_duty; + g_heater_pwm_val = (unsigned char)heater_duty; #else analogWrite(HEATER_0_PIN, heater_duty); -- cgit v1.2.1