arduino-esp32/cores/esp32/esp32-hal-dac.c
Me No Dev 5502879a5b
v2.0.0 Add support for ESP32S2 and update ESP-IDF to 4.4 (#4996)
This is very much still work in progress and much more will change before the final 2.0.0

Some APIs have changed. New libraries have been added. LittleFS included.

Co-authored-by: Seon Rozenblum <seonr@3sprockets.com>
Co-authored-by: Me No Dev <me-no-dev@users.noreply.github.com>
Co-authored-by: geeksville <kevinh@geeksville.com>
Co-authored-by: Mike Dunston <m_dunston@comcast.net>
Co-authored-by: Unexpected Maker <seon@unexpectedmaker.com>
Co-authored-by: Seon Rozenblum <seonr@3sprockets.com>
Co-authored-by: microDev <70126934+microDev1@users.noreply.github.com>
Co-authored-by: tobozo <tobozo@users.noreply.github.com>
Co-authored-by: bobobo1618 <bobobo1618@users.noreply.github.com>
Co-authored-by: lorol <lorolouis@gmail.com>
Co-authored-by: geeksville <kevinh@geeksville.com>
Co-authored-by: Limor "Ladyada" Fried <limor@ladyada.net>
Co-authored-by: Sweety <switi.mhaiske@espressif.com>
Co-authored-by: Loick MAHIEUX <loick111@gmail.com>
Co-authored-by: Larry Bernstone <lbernstone@gmail.com>
Co-authored-by: Valerii Koval <valeros@users.noreply.github.com>
Co-authored-by: 快乐的我531 <2302004040@qq.com>
Co-authored-by: chegewara <imperiaonline4@gmail.com>
Co-authored-by: Clemens Kirchgatterer <clemens@1541.org>
Co-authored-by: Aron Rubin <aronrubin@gmail.com>
Co-authored-by: Pete Lewis <601236+lewispg228@users.noreply.github.com>
2021-04-05 14:23:58 +03:00

57 lines
1.7 KiB
C

// Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "esp32-hal.h"
#include "esp_attr.h"
#include "soc/rtc_io_reg.h"
#include "soc/rtc_cntl_reg.h"
#include "soc/rtc_io_periph.h"
#include "soc/sens_reg.h"
#include "soc/sens_struct.h"
#include "driver/dac.h"
#if CONFIG_IDF_TARGET_ESP32
#define DAC1 25
#define DAC2 26
#elif CONFIG_IDF_TARGET_ESP32S2
#define DAC1 17
#define DAC2 18
#else
#error Target CONFIG_IDF_TARGET is not supported
#endif
void ARDUINO_ISR_ATTR __dacWrite(uint8_t pin, uint8_t value)
{
if(pin < DAC1 || pin > DAC2){
return;//not dac pin
}
pinMode(pin, ANALOG);
uint8_t channel = pin - DAC1;
#if CONFIG_IDF_TARGET_ESP32
CLEAR_PERI_REG_MASK(SENS_SAR_DAC_CTRL1_REG, SENS_SW_TONE_EN);
#elif CONFIG_IDF_TARGET_ESP32S2
SENS.sar_dac_ctrl1.dac_clkgate_en = 1;
#endif
RTCIO.pad_dac[channel].dac_xpd_force = 1;
RTCIO.pad_dac[channel].xpd_dac = 1;
if (channel == 0) {
SENS.sar_dac_ctrl2.dac_cw_en1 = 0;
} else if (channel == 1) {
SENS.sar_dac_ctrl2.dac_cw_en2 = 0;
}
RTCIO.pad_dac[channel].dac = value;
}
extern void dacWrite(uint8_t pin, uint8_t value) __attribute__ ((weak, alias("__dacWrite")));