X-Git-Url: https://hackdaworld.org/gitweb/?p=my-code%2Farm.git;a=blobdiff_plain;f=betty%2Fbetty.c;h=3a3e7a51313d9f398055ad43ce54508b5abffd0a;hp=3b29d2e2207c5a2e2659ea68771c6384a5f0889f;hb=HEAD;hpb=9f1a71389dff6cddd11c4b9975a0d1b91806ee2d

diff --git a/betty/betty.c b/betty/betty.c
index 3b29d2e..3a3e7a5 100644
--- a/betty/betty.c
+++ b/betty/betty.c
@@ -38,14 +38,31 @@ void display_string_page(u8 x,u8 p,u8 *s,u8 f,u8 o,u8 sp) {
 	}
 }
 
+void audio_mute_toggle(void) {
+
+	if(IOPIN0&(1<<11))
+		IOCLR0=(1<<11);
+	else
+		IOSET0=(1<<11);
+}
+
+#define AUDIO_TONE_C	(7500000/(262*256))
+#define AUDIO_TONE_D	(7500000/(294*256))
+#define AUDIO_TONE_E	(7500000/(330*256))
+#define AUDIO_TONE_F	(7500000/(349*256))
+#define AUDIO_TONE_G	(7500000/(392*256))
+//#define AUDIO_TONE_A	(7500000/(440*256))
+#define AUDIO_TONE_A	120
+#define AUDIO_TONE_H	(7500000/(494*256))
+
 void __attribute__ ((interrupt("IRQ"))) set_sample(void) {
 
-	uart0_send_byte('S');
+	//uart0_send_byte('S');
 	pwm_update_match(PWM_CHAN2,PWM_SINGLE_EDGE,sinus[sample_count++],0);
 	if(sample_count==0xff)
 		sample_count=0;
 	interrupt_ack();
-	interrupt_tc_ir_set(INTERRUPT_TC0,INTERRUPT_M0);
+	interrupt_tc_ir_set(INTERRUPT_TC0,INTERRUPT_MATCH0);
 }
 
 void __attribute__ ((interrupt("IRQ"))) input_event(void) {
@@ -117,6 +134,9 @@ void __attribute__ ((interrupt("IRQ"))) input_event(void) {
 				display_string_page(10,8,(u8 *)d2_txt,
 				                    DISPLAY_FILL_B,0,8);
 				break;
+			case BUTTON_MUTE:
+				audio_mute_toggle();
+				break;
 			default:
 				display_clear_screen();
 				break;
@@ -191,16 +211,19 @@ int main() {
 
 	// timer interrupt
 	interrupt_tc_config(INTERRUPT_TC0,INTERRUPT_TC_MODE_T,0,0);
-	interrupt_tc_match_config(INTERRUPT_TC0,INTERRUPT_M0,120,
-	                          INTERRUPT_TC_MATCH_IR|INTERRUPT_TC_MATCH_RESET);
-	interrupt_tc_ir_set(INTERRUPT_TC0,INTERRUPT_M0);
-	interrupt_enable(INTERRUPT_PWM,INTERRUPT_MODE_VIRQ,1,(u32)&set_sample);
+	interrupt_tc_match_config(INTERRUPT_TC0,INTERRUPT_M0,AUDIO_TONE_A,
+	                          INTERRUPT_TC_MATCH_IR|
+	                          INTERRUPT_TC_MATCH_RESET);
+	interrupt_tc_ir_set(INTERRUPT_TC0,INTERRUPT_MATCH0);
+	interrupt_enable(INTERRUPT_TIMER0,INTERRUPT_MODE_VIRQ,
+	                 1,(u32)&set_sample);
+	interrupt_tc_enable(INTERRUPT_TC0);
 
 	/* pwm init */
+	pwm_reset;
 	pwm_set_rate_and_prescaler(0xff,0);
 	pwm_config(PWM_CHAN2,PWM_SINGLE_EDGE,0,0);
-	pwm_match_ctrl_config(PWM_CHAN2,0);
-	interrupt_pwm_ir_set(PWM_CHAN2);
+	pwm_match_ctrl_config(PWM_CHAN2,PWM_MATCH_RESET);
 	pwm_enable;