mirror of
https://github.com/opentx/opentx.git
synced 2025-07-13 11:29:51 +03:00
285 lines
11 KiB
C++
285 lines
11 KiB
C++
/*
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* Copyright (C) OpenTX
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*
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* Based on code named
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* th9x - http://code.google.com/p/th9x
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* er9x - http://code.google.com/p/er9x
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* gruvin9x - http://code.google.com/p/gruvin9x
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*
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* License GPLv2: http://www.gnu.org/licenses/gpl-2.0.html
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include "opentx.h"
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#if defined(SIMU)
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// not needed
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#elif defined(RADIO_T16)
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const int8_t adcDirection[NUM_ANALOGS] = {1,-1,1,-1, 1,1,1, -1,1, -1,1};
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#elif defined(RADIO_T18)
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const int8_t adcDirection[NUM_ANALOGS] = { 1,-1,1,-1, -1,1,-1, -1,1, -1,1 };
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#elif defined(RADIO_TX16S)
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const int8_t adcDirection[NUM_ANALOGS] = {1,-1,1,-1, 1,1,1, -1,1, -1,1};
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#elif defined(PCBX10)
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const int8_t adcDirection[NUM_ANALOGS] = {1,-1,1,-1, -1,1,-1, 1,1, 1, -1};
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#elif defined(PCBX9E)
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#if defined(HORUS_STICKS)
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const int8_t adcDirection[NUM_ANALOGS] = {1,-1,1,-1, -1,-1,-1,1, -1,1,1, -1,-1,-1};
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#else
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const int8_t adcDirection[NUM_ANALOGS] = {1,1,-1,-1, -1,-1,-1,1, -1,1,1, -1,-1,-1};
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#endif
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const uint8_t adcMapping[NUM_ANALOGS] = { 0 /*STICK1*/, 1 /*STICK2*/, 2 /*STICK3*/, 3 /*STICK4*/,
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11 /*POT1*/, 4 /*POT2*/, 5 /*POT3*/, 6 /*POT4*/,
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12 /*SLIDER1*/, 13 /*SLIDER2*/, 7 /*SLIDER3*/, 8 /*SLIDER4*/,
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9 /*TX_VOLTAGE*/, 10 /*TX_VBAT*/ };
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#elif defined(PCBX9DP)
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const int8_t adcDirection[NUM_ANALOGS] = {1,-1,1,-1, 1,1,-1, 1,1, 1, 1};
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#elif defined(PCBX9D)
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const int8_t adcDirection[NUM_ANALOGS] = {1,-1,1,-1, 1,1,0, 1,1, 1, 1};
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#elif defined(RADIO_TX12)
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const int8_t adcDirection[NUM_ANALOGS] = {-1,1,-1,1, -1,-1, 1, 1};
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#elif defined(PCBX7)
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const int8_t adcDirection[NUM_ANALOGS] = {-1,1,-1,1, 1,1, 1, 1};
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#elif defined(PCBX9LITE)
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const int8_t adcDirection[NUM_ANALOGS] = {-1,1,-1,1, 1,1, 1};
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#elif defined(PCBXLITE)
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const int8_t adcDirection[NUM_ANALOGS] = {1,-1,-1,1, -1,1, 1, 1};
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#endif
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#if NUM_PWMSTICKS > 0
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#define FIRST_ANALOG_ADC (STICKS_PWM_ENABLED() ? NUM_PWMSTICKS : 0)
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#define NUM_ANALOGS_ADC (STICKS_PWM_ENABLED() ? (NUM_ANALOGS - NUM_PWMSTICKS) : NUM_ANALOGS)
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#elif defined(PCBX9E)
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#define FIRST_ANALOG_ADC 0
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#define NUM_ANALOGS_ADC 11
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#define NUM_ANALOGS_ADC_EXT (NUM_ANALOGS - NUM_ANALOGS_ADC)
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#else
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#define FIRST_ANALOG_ADC 0
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#define NUM_ANALOGS_ADC NUM_ANALOGS
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#endif
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uint16_t adcValues[NUM_ANALOGS] __DMA;
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#if defined(PCBX10)
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uint16_t rtcBatteryVoltage;
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#endif
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void adcInit()
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{
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GPIO_InitTypeDef GPIO_InitStructure;
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AN;
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GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz;
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GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
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GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
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#if defined(ADC_GPIOA_PINS)
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GPIO_InitStructure.GPIO_Pin = ADC_GPIOA_PINS;
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GPIO_Init(GPIOA, &GPIO_InitStructure);
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#endif
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#if defined(ADC_GPIOB_PINS)
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GPIO_InitStructure.GPIO_Pin = ADC_GPIOB_PINS;
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GPIO_Init(GPIOB, &GPIO_InitStructure);
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#endif
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#if defined(ADC_GPIOC_PINS)
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GPIO_InitStructure.GPIO_Pin = ADC_GPIOC_PINS;
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GPIO_Init(GPIOC, &GPIO_InitStructure);
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#endif
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#if defined(ADC_GPIOF_PINS)
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GPIO_InitStructure.GPIO_Pin = ADC_GPIOF_PINS;
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GPIO_Init(GPIOF, &GPIO_InitStructure);
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#endif
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ADC_MAIN->CR1 = ADC_CR1_SCAN;
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ADC_MAIN->CR2 = ADC_CR2_ADON | ADC_CR2_DMA | ADC_CR2_DDS;
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ADC_MAIN->SQR1 = (NUM_ANALOGS_ADC - 1) << 20; // bits 23:20 = number of conversions
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#if defined(PCBX10)
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if (STICKS_PWM_ENABLED()) {
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ADC_MAIN->SQR2 = (ADC_CHANNEL_SLIDER2 << 0) + (ADC_CHANNEL_BATT << 5);
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ADC_MAIN->SQR3 = (ADC_CHANNEL_POT1 << 0) + (ADC_CHANNEL_POT2 << 5) + (ADC_CHANNEL_POT3 << 10) + (ADC_CHANNEL_EXT1 << 15) + (ADC_CHANNEL_EXT2 << 20) + (ADC_CHANNEL_SLIDER1 << 25);
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}
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else {
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ADC_MAIN->SQR2 = (ADC_CHANNEL_POT3 << 0) + (ADC_CHANNEL_EXT1 << 5) + (ADC_CHANNEL_EXT2 << 10) + (ADC_CHANNEL_SLIDER1 << 15) + (ADC_CHANNEL_SLIDER2 << 20) + (ADC_CHANNEL_BATT << 25);
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ADC_MAIN->SQR3 = (ADC_CHANNEL_STICK_LH << 0) + (ADC_CHANNEL_STICK_LV << 5) + (ADC_CHANNEL_STICK_RV << 10) + (ADC_CHANNEL_STICK_RH << 15) + (ADC_CHANNEL_POT1 << 20) + (ADC_CHANNEL_POT2 << 25);
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}
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#elif defined(PCBX9E)
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ADC_MAIN->SQR2 = (ADC_CHANNEL_POT4 << 0) + (ADC_CHANNEL_SLIDER3 << 5) + (ADC_CHANNEL_SLIDER4 << 10) + (ADC_CHANNEL_BATT << 15) + (ADC_Channel_Vbat << 20);
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ADC_MAIN->SQR3 = (ADC_CHANNEL_STICK_LH << 0) + (ADC_CHANNEL_STICK_LV << 5) + (ADC_CHANNEL_STICK_RV << 10) + (ADC_CHANNEL_STICK_RH << 15) + (ADC_CHANNEL_POT2 << 20) + (ADC_CHANNEL_POT3 << 25);
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#elif defined(PCBXLITE)
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if (STICKS_PWM_ENABLED()) {
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ADC_MAIN->SQR2 = 0;
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ADC_MAIN->SQR3 = (ADC_CHANNEL_POT1 << 0) + (ADC_CHANNEL_POT2 << 5) + (ADC_CHANNEL_BATT << 10) + (ADC_Channel_Vbat << 15);
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}
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else {
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ADC_MAIN->SQR2 = (ADC_CHANNEL_BATT << 0) + (ADC_Channel_Vbat << 5);
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ADC_MAIN->SQR3 = (ADC_CHANNEL_STICK_LH << 0) + (ADC_CHANNEL_STICK_LV << 5) + (ADC_CHANNEL_STICK_RV << 10) + (ADC_CHANNEL_STICK_RH << 15) + (ADC_CHANNEL_POT1 << 20) + (ADC_CHANNEL_POT2 << 25);
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}
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#elif defined(PCBX7)
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ADC_MAIN->SQR2 = (ADC_CHANNEL_BATT << 0) + (ADC_Channel_Vbat << 5);
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ADC_MAIN->SQR3 = (ADC_CHANNEL_STICK_LH << 0) + (ADC_CHANNEL_STICK_LV << 5) + (ADC_CHANNEL_STICK_RV << 10) + (ADC_CHANNEL_STICK_RH << 15) + (ADC_CHANNEL_POT1 << 20) + (ADC_CHANNEL_POT2 << 25);
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#elif defined(PCBX9LITE)
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ADC_MAIN->SQR2 = (ADC_Channel_Vbat << 0);
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ADC_MAIN->SQR3 = (ADC_CHANNEL_STICK_LH << 0) + (ADC_CHANNEL_STICK_LV << 5) + (ADC_CHANNEL_STICK_RV << 10) + (ADC_CHANNEL_STICK_RH << 15) + (ADC_CHANNEL_POT1 << 20) + (ADC_CHANNEL_BATT << 25);
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#elif defined(PCBX9D) || defined(PCBX9DP)
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ADC_MAIN->SQR2 = (ADC_CHANNEL_POT3 << 0) + (ADC_CHANNEL_SLIDER1 << 5) + (ADC_CHANNEL_SLIDER2 << 10) + (ADC_CHANNEL_BATT << 15) + (ADC_Channel_Vbat << 20);
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ADC_MAIN->SQR3 = (ADC_CHANNEL_STICK_LH << 0) + (ADC_CHANNEL_STICK_LV << 5) + (ADC_CHANNEL_STICK_RV << 10) + (ADC_CHANNEL_STICK_RH << 15) + (ADC_CHANNEL_POT1 << 20) + (ADC_CHANNEL_POT2 << 25);
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#endif
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ADC_MAIN->SMPR1 = (ADC_SAMPTIME << 0) + (ADC_SAMPTIME << 3) + (ADC_SAMPTIME << 6) + (ADC_SAMPTIME << 9) + (ADC_SAMPTIME << 12) + (ADC_SAMPTIME << 15) + (ADC_SAMPTIME << 18) + (ADC_SAMPTIME << 21) + (ADC_SAMPTIME << 24);
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ADC_MAIN->SMPR2 = (ADC_SAMPTIME << 0) + (ADC_SAMPTIME << 3) + (ADC_SAMPTIME << 6) + (ADC_SAMPTIME << 9) + (ADC_SAMPTIME << 12) + (ADC_SAMPTIME << 15) + (ADC_SAMPTIME << 18) + (ADC_SAMPTIME << 21) + (ADC_SAMPTIME << 24) + (ADC_SAMPTIME << 27);
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ADC->CCR = ADC_CCR_VBATE; // Enable vbat sensor
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ADC_DMA_Stream->CR = DMA_SxCR_PL | ADC_DMA_SxCR_CHSEL | DMA_SxCR_MSIZE_0 | DMA_SxCR_PSIZE_0 | DMA_SxCR_MINC;
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ADC_DMA_Stream->PAR = CONVERT_PTR_UINT(&ADC_MAIN->DR);
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ADC_DMA_Stream->M0AR = CONVERT_PTR_UINT(&adcValues[FIRST_ANALOG_ADC]);
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ADC_DMA_Stream->NDTR = NUM_ANALOGS_ADC;
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ADC_DMA_Stream->FCR = DMA_SxFCR_DMDIS | DMA_SxFCR_FTH_0;
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#if defined(PCBX10)
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ADC1->CR1 = ADC_CR1_SCAN;
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ADC1->CR2 = ADC_CR2_ADON | ADC_CR2_DMA | ADC_CR2_DDS;
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ADC1->SQR1 = (1 - 1) << 20;
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ADC1->SQR2 = 0;
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ADC1->SQR3 = (ADC_Channel_Vbat << 0);
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ADC1->SMPR1 = (ADC_SAMPTIME << 0) + (ADC_SAMPTIME << 3) + (ADC_SAMPTIME << 6) + (ADC_SAMPTIME << 9) + (ADC_SAMPTIME << 12) + (ADC_SAMPTIME << 15) + (ADC_SAMPTIME << 18) + (ADC_SAMPTIME << 21) + (ADC_SAMPTIME << 24);
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ADC1->SMPR2 = (ADC_SAMPTIME << 0) + (ADC_SAMPTIME << 3) + (ADC_SAMPTIME << 6) + (ADC_SAMPTIME << 9) + (ADC_SAMPTIME << 12) + (ADC_SAMPTIME << 15) + (ADC_SAMPTIME << 18) + (ADC_SAMPTIME << 21) + (ADC_SAMPTIME << 24) + (ADC_SAMPTIME << 27);
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#endif
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#if defined(PCBX9E)
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ADC_EXT->CR1 = ADC_CR1_SCAN;
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ADC_EXT->CR2 = ADC_CR2_ADON | ADC_CR2_DMA | ADC_CR2_DDS;
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ADC_EXT->SQR1 = (NUM_ANALOGS_ADC_EXT - 1) << 20;
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ADC_EXT->SQR2 = 0;
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ADC_EXT->SQR3 = (ADC_CHANNEL_POT1 << 0) + (ADC_CHANNEL_SLIDER1 << 5) + (ADC_CHANNEL_SLIDER2 << 10); // conversions 1 to 3
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ADC_EXT->SMPR1 = (ADC_SAMPTIME << 0) + (ADC_SAMPTIME << 3) + (ADC_SAMPTIME << 6) + (ADC_SAMPTIME << 9) + (ADC_SAMPTIME << 12) + (ADC_SAMPTIME << 15) + (ADC_SAMPTIME << 18) + (ADC_SAMPTIME << 21) + (ADC_SAMPTIME << 24);
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ADC_EXT->SMPR2 = (ADC_SAMPTIME << 0) + (ADC_SAMPTIME << 3) + (ADC_SAMPTIME << 6) + (ADC_SAMPTIME << 9) + (ADC_SAMPTIME << 12) + (ADC_SAMPTIME << 15) + (ADC_SAMPTIME << 18) + (ADC_SAMPTIME << 21) + (ADC_SAMPTIME << 24) + (ADC_SAMPTIME << 27);
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ADC_EXT_DMA_Stream->CR = DMA_SxCR_PL | DMA_SxCR_CHSEL_1 | DMA_SxCR_MSIZE_0 | DMA_SxCR_PSIZE_0 | DMA_SxCR_MINC;
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ADC_EXT_DMA_Stream->PAR = CONVERT_PTR_UINT(&ADC_EXT->DR);
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ADC_EXT_DMA_Stream->M0AR = CONVERT_PTR_UINT(adcValues + NUM_ANALOGS_ADC);
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ADC_EXT_DMA_Stream->NDTR = NUM_ANALOGS_ADC_EXT;
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ADC_EXT_DMA_Stream->FCR = DMA_SxFCR_DMDIS | DMA_SxFCR_FTH_0;
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#endif
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#if NUM_PWMSTICKS > 0
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if (STICKS_PWM_ENABLED()) {
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sticksPwmInit();
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}
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#endif
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}
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void adcSingleRead()
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{
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ADC_DMA_Stream->CR &= ~DMA_SxCR_EN; // Disable DMA
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ADC_MAIN->SR &= ~(uint32_t)(ADC_SR_EOC | ADC_SR_STRT | ADC_SR_OVR);
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ADC_SET_DMA_FLAGS();
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ADC_DMA_Stream->CR |= DMA_SxCR_EN; // Enable DMA
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ADC_MAIN->CR2 |= (uint32_t)ADC_CR2_SWSTART;
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#if defined(PCBX10)
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ADC1->SR &= ~(uint32_t)(ADC_SR_EOC | ADC_SR_STRT | ADC_SR_OVR);
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ADC1->CR2 |= (uint32_t)ADC_CR2_SWSTART;
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#endif
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#if defined(PCBX9E)
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ADC_EXT_DMA_Stream->CR &= ~DMA_SxCR_EN; // Disable DMA
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ADC_EXT->SR &= ~(uint32_t)(ADC_SR_EOC | ADC_SR_STRT | ADC_SR_OVR);
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ADC_EXT_SET_DMA_FLAGS();
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ADC_EXT_DMA_Stream->CR |= DMA_SxCR_EN; // Enable DMA
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ADC_EXT->CR2 |= (uint32_t)ADC_CR2_SWSTART;
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#endif
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#if defined(PCBX9E)
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for (unsigned int i=0; i<10000; i++) {
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if (ADC_TRANSFER_COMPLETE() && ADC_EXT_TRANSFER_COMPLETE()) {
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break;
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}
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}
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ADC_DMA_Stream->CR &= ~DMA_SxCR_EN; // Disable DMA
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ADC_EXT_DMA_Stream->CR &= ~DMA_SxCR_EN; // Disable DMA
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#else
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for (unsigned int i = 0; i < 10000; i++) {
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if (ADC_TRANSFER_COMPLETE()) {
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break;
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}
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}
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ADC_DMA_Stream->CR &= ~DMA_SxCR_EN; // Disable DMA
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#endif
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#if defined(PCBX10)
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if (isVBatBridgeEnabled()) {
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rtcBatteryVoltage = ADC1->DR;
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}
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#endif
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}
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void adcRead()
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{
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uint16_t temp[NUM_ANALOGS] = { 0 };
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for (int i=0; i<4; i++) {
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adcSingleRead();
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for (uint8_t x=FIRST_ANALOG_ADC; x<NUM_ANALOGS; x++) {
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uint16_t val = adcValues[x];
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#if defined(JITTER_MEASURE)
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if (JITTER_MEASURE_ACTIVE()) {
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rawJitter[x].measure(val);
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}
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#endif
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temp[x] += val;
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}
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}
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for (uint8_t x=FIRST_ANALOG_ADC; x<NUM_ANALOGS; x++) {
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adcValues[x] = temp[x] >> 2;
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}
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#if NUM_PWMSTICKS > 0
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if (STICKS_PWM_ENABLED()) {
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sticksPwmRead(adcValues);
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}
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#endif
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}
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#if defined(PCBX10)
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uint16_t getRTCBatteryVoltage()
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{
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return (rtcBatteryVoltage * 2 * ADC_VREF_PREC2) / 2048;
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}
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#else
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uint16_t getRTCBatteryVoltage()
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{
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return (getAnalogValue(TX_RTC_VOLTAGE) * ADC_VREF_PREC2) / 2048;
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}
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#endif
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#if !defined(SIMU)
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uint16_t getAnalogValue(uint8_t index)
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{
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if (IS_POT(index) && !IS_POT_SLIDER_AVAILABLE(index)) {
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// Use fixed analog value for non-existing and/or non-connected pots.
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// Non-connected analog inputs will slightly follow the adjacent connected analog inputs,
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// which produces ghost readings on these inputs.
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return 0;
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}
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#if defined(PCBX9E)
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index = adcMapping[index];
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#endif
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if (adcDirection[index] < 0)
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return 4095 - adcValues[index];
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else
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return adcValues[index];
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}
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#endif // #if !defined(SIMU)
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