From d50d2a22f0252f564fdbc0a58cbb9041f67ba357 Mon Sep 17 00:00:00 2001
From: Dennis Brentjes <d.brentjes@gmail.com>
Date: Tue, 31 Mar 2020 16:05:29 +0200
Subject: Tries to trace the OCOA and OCOB pins but no output?

---
 picl-firmware/fan_control.c | 34 ++++++++++++++++++++++++++--------
 1 file changed, 26 insertions(+), 8 deletions(-)

(limited to 'picl-firmware/fan_control.c')

diff --git a/picl-firmware/fan_control.c b/picl-firmware/fan_control.c
index 6b0bd99..3cebd7e 100644
--- a/picl-firmware/fan_control.c
+++ b/picl-firmware/fan_control.c
@@ -2,6 +2,18 @@
 #include <avr/interrupt.h>
 #include <avr/sleep.h>
 
+#include <avr/avr_mcu_section.h>
+
+AVR_MCU(8000000, "attiny24");
+AVR_MCU_VOLTAGES(5000, 5000, 5000);
+
+const struct avr_mmcu_vcd_trace_t my_trace[] _MMCU_ = {
+    { AVR_MCU_VCD_SYMBOL("PORTA"), .what = (void*)&PORTA },
+    { AVR_MCU_VCD_SYMBOL("PORTB"), .what = (void*)&PORTB },
+    { AVR_MCU_VCD_SYMBOL("PINA"), .what = (void*)&PINA },
+    { AVR_MCU_VCD_SYMBOL("PINB"), .what = (void*)&PINB }
+};
+
 void setup_clock() {
 	CLKPR |= (1UL << CLKPCE); //enable setting of prescaler.
 	CLKPR &= ~(15 << CLKPS0); //set prescaler to 1, system clock 8MHz.
@@ -20,11 +32,11 @@ void setup_adc() {
 }
 
 void setup_timers() {
-	//Set channel A to inverted mode
+	//Set channel A to non inverted mode
 	TCCR0A &= ~(3UL << COM0A0);
 	TCCR0A |= (2UL << COM0A0);
 	
-	//Set channel B to inverted mode
+	//Set channel B to non inverted mode
 	TCCR0A &= ~(3UL << COM0B0);
 	TCCR0A |= (2UL << COM0B0);
 	
@@ -40,8 +52,8 @@ void setup_timers() {
 	TCCR0B &= ~(7UL << CS00);
 	TCCR0B |= (1UL << CS00);
 	
-	DDRA |= (1UL << PA7);
-	DDRB |= (1UL << PB2);
+	DDRA |= (1UL << DDA7);
+	DDRB |= (1UL << DDB2);
 }
 
 void enable_ADC() {
@@ -96,9 +108,11 @@ ISR(ADC_vect) {
     }
 }
 
-volatile int b = 0;
+AVR_MCU_SIMAVR_COMMAND (& GPIOR0 ) ;
 
 int main() {
+    GPIOR0 = SIMAVR_CMD_VCD_START_TRACE;
+
 	setup_clock();
     setup_adc();
     setup_timers();
@@ -106,8 +120,12 @@ int main() {
 	OCR0A = 0x80;
 	OCR0B = 0xB0;
 
-    while(1) {
+    //run for however long this takes...
+    uint16_t t = 0xffff;
+    while (t > 0) {
+        t--;
+    }
 
-		b+=1;
-	}
+    GPIOR0 = SIMAVR_CMD_VCD_STOP_TRACE;
 }
+
-- 
cgit v1.2.3-70-g09d2