c3algebra: Added ortho matrices

[simavr] / tests / atmega88_timer16.c

diff --git a/tests/atmega88_timer16.c b/tests/atmega88_timer16.c
index e587ba4..31e5327 100644 (file)
--- a/tests/atmega88_timer16.c
+++ b/tests/atmega88_timer16.c
@@ -25,9 +25,9 @@
 #include <avr/sleep.h>
 
 /*
- * This demonstrate how to use the avr_mcu_section.h file
+ * This demonstrates how to use the avr_mcu_section.h file.
  * The macro adds a section to the ELF file with useful
- * information for the simulator
+ * information for the simulator.
  */
 #include "avr_mcu_section.h"
 AVR_MCU(F_CPU, "atmega88");
@@ -47,6 +47,7 @@ const struct avr_mmcu_vcd_trace_t _mytrace[]  _MMCU_ = {
        { AVR_MCU_VCD_SYMBOL("TCNT1H"), .what = (void*)&TCNT1H, },      
        { AVR_MCU_VCD_SYMBOL("tick"), .mask = (1 << 0), .what = (void*)&PORTB, },       
        { AVR_MCU_VCD_SYMBOL("reset_timer"), .mask = (1 << 1), .what = (void*)&PORTB, },        
+       { AVR_MCU_VCD_SYMBOL("OC2A"), .mask = (1 << 3), .what = (void*)&PORTB, },
 };
 
 volatile uint16_t tcnt;
@@ -68,28 +69,30 @@ int main()
        // timer prescaler to 64
        TCCR1B |= (0<<CS12 | 1<<CS11 | 1<<CS10);
 
-       DDRB = 3;
+       DDRB = 0x0B;
        
        //
        // now enable a tick counter
        // using an asynchronous mode
        //
        ASSR |= (1 << AS2);             // use "external" 32.7k crystal source
-       TCCR2A = (1 << WGM21); // use CLK/8 prescale value, clear timer/counter on compareA match
-    TCCR2B = (2 << CS20); // prescaler
-    OCR2A = 63;        // 64 hz
-    TIMSK2  |= (1 << OCIE2A);
+       // use CLK/8 prescale value, clear timer/counter on compareA match
+       // toggle OC2A pin too
+       TCCR2A = (1 << WGM21) | (1 << COM2A0);
+       TCCR2B = (2 << CS20); // prescaler
+       OCR2A = 63;     // 64 hz
+       TIMSK2  |= (1 << OCIE2A);
 
        sei();
        
        int count = 0;
-    while (count++ < 100) {
-       // we read TCNT1, which should contain some sort of incrementing value
-       tcnt = TCNT1;           // read it
-       if (tcnt > 10000) {
-               TCNT1 = 500;    // reset it arbitrarily
-               PORTB ^= 2;             // mark it in the waveform file
-       }
+       while (count++ < 100) {
+               // we read TCNT1, which should contain some sort of incrementing value
+               tcnt = TCNT1;           // read it
+               if (tcnt > 10000) {
+                       TCNT1 = 500;    // reset it arbitrarily
+                       PORTB ^= 2;             // mark it in the waveform file
+               }
                sleep_cpu();            // this will sleep until a new timer2 tick interrupt occurs
        }
        // sleeping with interrupt off is interpreted by simavr as "exit please"