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Add Arduino compatibility layer

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We can now directly compile arduino sketches (.pde) files.
Arduino compatible analogWrite works now.
But there is still a long way to go, serial I/O and timer stuff (delay,
millis etc) currently don't work (not tested but I don't expect this to
work).
It can be used in an arduino sketch or in a normal contiki program.
We get a PWM frequency of 490.2 Hz (a period of 2.040 ms), that's
Arduino compatible. If you need different frequencies see native timer
usage in examples/osd/pwm-example
In a contiki program you have to call arduino_pwm_timer_init to
initialize the timer before pwm works. The arduino sketch wrapper
already does this.
For running a sketch, see examples/osd/arduino-sketch
This commit is contained in:
Ralf Schlatterbeck 2014-06-26 11:00:01 +02:00
parent b17934c491
commit b6be226e69
22 changed files with 999 additions and 361 deletions
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42
platform/osd-merkur/dev/pins_arduino.h
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@ -215,48 +215,6 @@ const uint8_t PROGMEM digital_pin_to_bit_mask_PGM[] = {
// _BV( 7 ) , // PB 7 ** 35 ** D35 / LED2 / PWM
};
// !!!
const uint8_t PROGMEM digital_pin_to_timer_PGM[] = {
// TIMERS
// -------------------------------------------
NOT_ON_TIMER , // PE 1 ** 0 ** USART0_TX
NOT_ON_TIMER , // PE 0 ** 1 ** USART0_RX
TIMER3A , // PE 3 ** 2 ** D3 / PWM
TIMER3B , // PE 4 ** 3 ** D4 / PWM
TIMER3C , // PE 5 ** 4 ** D5 / PWM
NOT_ON_TIMER , // PE 6 ** 5 ** D6
NOT_ON_TIMER , // PD 3 ** 6 ** D21 / USART1_TX
NOT_ON_TIMER , // PD 2 ** 7 ** D20 / USART1_RX
NOT_ON_TIMER , // PD 0 ** 8 ** D15 / I2C_SCL
NOT_ON_TIMER , // PD 1 ** 9 ** D14 / I2C_SDA
NOT_ON_TIMER , // PB 0 ** 10 ** D10 / SPI_SSN
NOT_ON_TIMER , // PB 2 ** 11 ** D11 / SPI_MOSI
NOT_ON_TIMER , // PB 1 ** 12 ** D13 / SPI_SCK
NOT_ON_TIMER , // PB 3 ** 13 ** D12 / SPI_MISO
TIMER2A , // PB 4 ** 14 ** D9 / PWM
NOT_ON_TIMER , // PF 7 ** 15 ** A0 / D33
NOT_ON_TIMER , // PF 6 ** 16 ** A1 / D32
NOT_ON_TIMER , // PF 5 ** 17 ** A2 / D31
NOT_ON_TIMER , // PF 4 ** 18 ** A3 / D30
NOT_ON_TIMER , // PF 0 ** 19 ** A4 / D26
NOT_ON_TIMER , // PF 1 ** 20 ** A5 / D27
// NOT_ON_TIMER , // PF 2 ** 28 ** A6 / D28
// NOT_ON_TIMER , // PF 3 ** 29 ** A7 / D29
// NOT_ON_TIMER , // PE 2 ** 2 ** D2
// NOT_ON_TIMER , // PE 7 ** 7 ** D7
// TIMER1A , // PB 5 ** 8 ** D8 / PWM
// NOT_ON_TIMER , // PG 0 ** 16 ** D16
// NOT_ON_TIMER , // PG 1 ** 17 ** D17
// NOT_ON_TIMER , // PG 2 ** 18 ** D18
// TIMER0B , // PG 5 ** 19 ** D19 / PWM
// NOT_ON_TIMER , // PD 4 ** 22 ** D22
// NOT_ON_TIMER , // PD 5 ** 23 ** D23
// NOT_ON_TIMER , // PD 6 ** 24 ** D24
// NOT_ON_TIMER , // PD 7 ** 25 ** D25
// TIMER1B , // PB 6 ** 34 ** D34/ PWM
// TIMER1C , // PB 7 ** 35 ** D35 / PWM
};
#endif
#endif