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Got timer and pwm functions working with the ATmega168 (including pwm on pin 3); no longer relying on timer.c or timer.h from avrlib.

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This commit is contained in:
David A. Mellis
2006-08-26 09:56:40 +00:00
parent 8b6864f3b8
commit 2f97a4b146
6 changed files with 133 additions and 836 deletions
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31
targets/arduino/pins_arduino.c
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@@ -105,6 +105,35 @@ pin_t digital_pin_to_port_array[NUM_DIGITAL_PINS] = {
pin_t *digital_pin_to_port = digital_pin_to_port_array;
int analog_out_pin_to_timer_array[NUM_DIGITAL_PINS] = {
NOT_ON_TIMER,
NOT_ON_TIMER,
NOT_ON_TIMER,
// on the ATmega168, digital pin 3 has pwm
#if defined(__AVR_ATmega168__)
TIMER2B,
#else
NOT_ON_TIMER,
#endif
NOT_ON_TIMER,
NOT_ON_TIMER,
NOT_ON_TIMER,
NOT_ON_TIMER,
NOT_ON_TIMER,
TIMER1A,
TIMER1B,
#if defined(__AVR_ATmega168__)
TIMER2A,
#else
TIMER2,
#endif
NOT_ON_TIMER,
NOT_ON_TIMER,
};
int *analog_out_pin_to_timer = analog_out_pin_to_timer_array;
/*
// Some of the digital pins also support hardware PWM (analog output).
pin_t analog_out_pin_to_port_array[NUM_DIGITAL_PINS] = {
{ NOT_A_PIN, NOT_A_PIN },
@@ -124,7 +153,7 @@ pin_t analog_out_pin_to_port_array[NUM_DIGITAL_PINS] = {
};
pin_t *analog_out_pin_to_port = analog_out_pin_to_port_array;
*/
pin_t analog_in_pin_to_port_array[NUM_ANALOG_IN_PINS] = {
{ PC, 0 },
{ PC, 1 },