64 lines
1.8 KiB
C
64 lines
1.8 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"
|
|
|
|
#if CONFIG_IDF_TARGET_ESP32
|
|
#include "soc/rtc_io_reg.h"
|
|
#define DAC1 25
|
|
#define DAC2 26
|
|
#elif CONFIG_IDF_TARGET_ESP32S2
|
|
#include "soc/rtc_io_reg.h"
|
|
#define DAC1 17
|
|
#define DAC2 18
|
|
#elif CONFIG_IDF_TARGET_ESP32C3
|
|
#define NODAC
|
|
#else
|
|
#error Target CONFIG_IDF_TARGET is not supported
|
|
#endif
|
|
|
|
#ifndef NODAC
|
|
#include "esp_attr.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"
|
|
|
|
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")));
|
|
|
|
#endif
|