77c02d58f8
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.
108 lines
2 KiB
C
108 lines
2 KiB
C
/**
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* \file
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* Resource for Arduino PWM
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* \author
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* Ralf Schlatterbeck <rsc@runtux.com>
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*
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* \brief get/put pwm and period for LED pin
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*
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "contiki.h"
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#include "jsonparse.h"
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/* Only coap 13 for now */
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#include "er-coap-13.h"
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#include "generic_resource.h"
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#include "led_pwm.h"
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void pwm_from_string (const char *name, const char *s)
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{
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uint32_t tmp = strtoul (s, NULL, 10);
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if (tmp > 255) {
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tmp = 255;
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}
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pwm = tmp;
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}
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size_t
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pwm_to_string (const char *name, uint8_t is_json, char *buf, size_t bufsize)
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{
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return snprintf (buf, bufsize, "%d", pwm);
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}
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GENERIC_RESOURCE \
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( led_pwm, METHOD_GET | METHOD_PUT
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, "led/pwm"
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, LED PWM
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, duty-cycle
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, pwm_from_string
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, pwm_to_string
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);
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void period_from_string (const char *name, const char *s)
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{
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uint32_t tmp = (strtoul (s, NULL, 10) + 50) / 100;
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if (tmp > 10) {
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tmp = 10;
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}
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if (tmp == 0) {
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tmp = 1;
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}
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period_100ms = tmp;
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}
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size_t
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period_to_string (const char *name, uint8_t is_json, char *buf, size_t bufsize)
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{
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return snprintf (buf, bufsize, "%d", period_100ms * 100);
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}
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GENERIC_RESOURCE \
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( led_period, METHOD_GET | METHOD_PUT
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, "led/period"
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, LED Period
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, ms
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, period_from_string
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, period_to_string
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);
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size_t
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analog1_v (const char *name, uint8_t is_json, char *buf, size_t bufsize)
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{
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return snprintf
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(buf, bufsize, "%d.%03d", analog1_voltage / 1000, analog1_voltage % 1000);
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}
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GENERIC_RESOURCE \
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( analog1_voltage, METHOD_GET
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, "analog/1"
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, Analog 1 voltage
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, V
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, NULL
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, analog1_v
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);
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size_t
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analog5_v (const char *name, uint8_t is_json, char *buf, size_t bufsize)
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{
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return snprintf
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(buf, bufsize, "%d.%03d", analog5_voltage / 1000, analog5_voltage % 1000);
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}
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GENERIC_RESOURCE \
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( analog5_voltage, METHOD_GET
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, "analog/5"
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, Analog 5 voltage
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, V
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, NULL
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, analog5_v
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);
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/*
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* VI settings, see coding style
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* ex:ts=8:et:sw=2
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*/
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