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osd-contiki/examples/osd/arduino-sketch/led_pwm.h

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Add Arduino compatibility layer 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
2014-06-26 11:00:01 +02:00
/**
* \defgroup Arduino LED PWM example
*
* Resource definition for Arduino LED PWM module
*
* @{
*/
/**
* \file
* Resource definitions for the Arduino LED PWM module
*
* \author
* Ralf Schlatterbeck <rsc@tux.runtux.com>
*/
#ifndef led_pwm_h
#define led_pwm_h
#include "contiki.h"
#include "contiki-net.h"
#include "erbium.h"
#include "er-coap-13.h"
Refactor A/D conversion in adc.c Now the necessary settings are in adc.h. Refactored to allow repeated ADC reads without reinitialization. Arduino allows setting analogReference, this is now also implemented. ADC is now initialized to sane values in apps/arduino/arduino-process.c dev/arduino/arduino-compat.h now has all hardware independent settings for arduino (some moved from platform/osd-merkur/dev/hw-arduino.h). turnOffPWM re-implemented with hw_timer, removed from wiring_digital.c ADC-specific arduino stuff moved to arduino-compat.h Arduinos wiring_analog no longer necessary. arduino-sketch example now reads analog inputs 1 and 5 using analogRead.
2014-06-29 17:26:15 +02:00
extern uint8_t pwm;
extern uint8_t period_100ms;
Fix A0-A5 ADC constants, use in example sketch
2014-06-30 10:24:49 +02:00
extern uint16_t analog2_voltage;
Refactor A/D conversion in adc.c Now the necessary settings are in adc.h. Refactored to allow repeated ADC reads without reinitialization. Arduino allows setting analogReference, this is now also implemented. ADC is now initialized to sane values in apps/arduino/arduino-process.c dev/arduino/arduino-compat.h now has all hardware independent settings for arduino (some moved from platform/osd-merkur/dev/hw-arduino.h). turnOffPWM re-implemented with hw_timer, removed from wiring_digital.c ADC-specific arduino stuff moved to arduino-compat.h Arduinos wiring_analog no longer necessary. arduino-sketch example now reads analog inputs 1 and 5 using analogRead.
2014-06-29 17:26:15 +02:00
extern uint16_t analog5_voltage;
Add Arduino compatibility layer 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
2014-06-26 11:00:01 +02:00
extern resource_t resource_led_pwm;
extern resource_t resource_led_period;
Fix A0-A5 ADC constants, use in example sketch
2014-06-30 10:24:49 +02:00
extern resource_t resource_analog2_voltage;
Refactor A/D conversion in adc.c Now the necessary settings are in adc.h. Refactored to allow repeated ADC reads without reinitialization. Arduino allows setting analogReference, this is now also implemented. ADC is now initialized to sane values in apps/arduino/arduino-process.c dev/arduino/arduino-compat.h now has all hardware independent settings for arduino (some moved from platform/osd-merkur/dev/hw-arduino.h). turnOffPWM re-implemented with hw_timer, removed from wiring_digital.c ADC-specific arduino stuff moved to arduino-compat.h Arduinos wiring_analog no longer necessary. arduino-sketch example now reads analog inputs 1 and 5 using analogRead.
2014-06-29 17:26:15 +02:00
extern resource_t resource_analog5_voltage;
Add Arduino compatibility layer 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
2014-06-26 11:00:01 +02:00
#endif // led_pwm_h
/** @} */
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