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-rw-r--r--arch/attiny1616.c6
-rw-r--r--arch/attiny1616.h2
-rw-r--r--arch/attiny1634.c6
-rw-r--r--arch/attiny1634.h2
-rw-r--r--arch/attiny85.c21
-rw-r--r--arch/attiny85.h2
6 files changed, 39 insertions, 0 deletions
diff --git a/arch/attiny1616.c b/arch/attiny1616.c
index 3b170bb..a3ead7e 100644
--- a/arch/attiny1616.c
+++ b/arch/attiny1616.c
@@ -145,3 +145,9 @@ void reboot() {
while (1) {}
}
+inline void prevent_reboot_loop() {
+ // prevent WDT from rebooting MCU again
+ RSTCTRL.RSTFR &= ~(RSTCTRL_WDRF_bm); // reset status flag
+ wdt_disable();
+}
+
diff --git a/arch/attiny1616.h b/arch/attiny1616.h
index 5989785..b4e17fc 100644
--- a/arch/attiny1616.h
+++ b/arch/attiny1616.h
@@ -94,3 +94,5 @@ inline void mcu_pcint_off();
void reboot();
+inline void prevent_reboot_loop();
+
diff --git a/arch/attiny1634.c b/arch/attiny1634.c
index d4b3767..0737a81 100644
--- a/arch/attiny1634.c
+++ b/arch/attiny1634.c
@@ -123,3 +123,9 @@ void reboot() {
while (1) {}
}
+inline void prevent_reboot_loop() {
+ // prevent WDT from rebooting MCU again
+ MCUSR &= ~(1<<WDRF); // reset status flag
+ wdt_disable();
+}
+
diff --git a/arch/attiny1634.h b/arch/attiny1634.h
index e01abad..fb89fa8 100644
--- a/arch/attiny1634.h
+++ b/arch/attiny1634.h
@@ -96,3 +96,5 @@ inline void mcu_pcint_off();
void reboot();
+inline void prevent_reboot_loop();
+
diff --git a/arch/attiny85.c b/arch/attiny85.c
index 40cbcfe..0d2d7fe 100644
--- a/arch/attiny85.c
+++ b/arch/attiny85.c
@@ -165,3 +165,24 @@ void reboot() {
while (1) {}
}
+inline void prevent_reboot_loop() {
+ // prevent WDT from rebooting MCU again
+ MCUSR &= ~(1<<WDRF); // reset status flag
+ wdt_disable();
+}
+
+
+#if 0 // example for one way of creating a 4th PWM channel
+// 4th PWM channel requires manually turning the pin on/off via interrupt :(
+ISR(TIMER1_OVF_vect) {
+ //bitClear(PORTB, 3);
+ PORTB &= 0b11110111;
+ //PORTB |= 0b00001000;
+}
+ISR(TIMER1_COMPA_vect) {
+ //if (!bitRead(TIFR,TOV1)) bitSet(PORTB, 3);
+ if (! (TIFR & (1<<TOV1))) PORTB |= 0b00001000;
+ //if (! (TIFR & (1<<TOV1))) PORTB &= 0b11110111;
+}
+#endif
+
diff --git a/arch/attiny85.h b/arch/attiny85.h
index 840079c..2753fd7 100644
--- a/arch/attiny85.h
+++ b/arch/attiny85.h
@@ -89,3 +89,5 @@ inline void mcu_pcint_off();
void reboot();
+inline void prevent_reboot_loop();
+