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6a18cbc5dd
2. added README_flash.txt to folder target/esp32 3. added README_flash.txt to zip file created in $(ESP_ZIP):.... in Makefile 4. added header and source file for PWM. ESP32 does not support a general PWM driver(yet). Therefore driver/ledc is used. 5 channel can be used for simple DAC, using default frequency of 5000Hz 3 more channel are available for different frequency 5. connect jshardwarePWM functions to standard calls in jshardware 6. implemented jshSetOutputValue in jshardware 7. moved targets/esp32/rtosutil.c from RTOS to standard part of ESP32 targets/esp32/jswrap_rtos.c is added only if var RTOS is defined
34 lines
1.2 KiB
C
34 lines
1.2 KiB
C
/*
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* This file is designed to support PWM functions in Espruino for ESP32,
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* a JavaScript interpreter for Microcontrollers designed by Gordon Williams
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*
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* Copyright (C) 2016 by Juergen Marsch
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*
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* This Source Code Form is subject to the terms of the Mozilla Publici
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* ----------------------------------------------------------------------------
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* This file is designed to be parsed during the build process
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*
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* Contains ESP32 board specific functions.
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* ----------------------------------------------------------------------------
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*/
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#include "jspininfo.h"
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#define PWMMax 5 //maximum PWM channel for Analog output (freq = 50000)
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#define PWMFreqMax 3 //maximum PWM channel with free frequency
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#define PWMTimerBit 10 //10 bit for value
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#define PWMTimerRange 1024
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struct PWMChannel{Pin pin;}; //will be extended once we know more about PWM for Espruino on ESP32
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struct PWMChannel PWMChannels[PWMMax];
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struct PWMFreqChannel{Pin pin; int freq};
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struct PWMFreqChannel PWMFreqChannels[PWMFreqMax];
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void PWMInit();
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void writePWM(Pin pin, uint16_t value,int freq);
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void setPWM(Pin pin,uint16_t value);
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