217 lines
6.2 KiB
C
217 lines
6.2 KiB
C
/**
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*******************************************************************************
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* Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
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* All rights reserved.
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*
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* This software component is licensed by WCH under BSD 3-Clause license,
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* the "License"; You may not use this file except in compliance with the
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* License. You may obtain a copy of the License at:
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* opensource.org/licenses/BSD-3-Clause
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*
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*******************************************************************************
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*/
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#include "pins_arduino.h"
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#include "mik32_hal_adc.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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void ErrorMsgHandler(const char * msg);
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#ifdef __cplusplus
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}
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#endif
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bool spiNssPinIsBlocked = false;
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// list of pin numbers from both ports with pins inside the port
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const HAL_PinsTypeDef digitalPinToGpioPinArray[] =
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{
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GPIO_PIN_5, // D0
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GPIO_PIN_6, // D1
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GPIO_PIN_10,// D2
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GPIO_PIN_0, // D3
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GPIO_PIN_8, // D4
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GPIO_PIN_1, // D5
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GPIO_PIN_2, // D6
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GPIO_PIN_8, // D7
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GPIO_PIN_9, // D8
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GPIO_PIN_3, // D9
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GPIO_PIN_3, // D10
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GPIO_PIN_1, // D11
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GPIO_PIN_0, // D12
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GPIO_PIN_2, // D13
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GPIO_PIN_5, // D14/A0
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GPIO_PIN_7, // D15/A1
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GPIO_PIN_4, // D16/A2
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GPIO_PIN_7, // D17/A3
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GPIO_PIN_12,// D18
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GPIO_PIN_13,// D19
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GPIO_PIN_9, // A4 (board pin 20)
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GPIO_PIN_9, // A5 (board pin 21)
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GPIO_PIN_7, // LED(pin 22)
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GPIO_PIN_6 // BTN(pin 23)
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};
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// etermines the address of the port by the board pin number to which this pin belongs on the MCU
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GPIO_TypeDef* digitalPinToPort(uint32_t digPinNumber)
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{
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GPIO_TypeDef* gpioNum = 0;
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// port 0 - board pins 0...6, 9, 16(A2), 17(A3), 20(A4), 21(A5)
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if ((digPinNumber >= 0 && digPinNumber <= 6) || digPinNumber == 9 || digPinNumber == 16
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|| digPinNumber == 17 || digPinNumber == 20 || digPinNumber == 21) // 12 pieces
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gpioNum = GPIO_0;
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// port 1 - board pins 7, 8, 10...13, 14(А0), 15(А1), 18,19
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else if (digPinNumber == 7 || digPinNumber == 8 || (digPinNumber >= 10 && digPinNumber <= 15)
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|| digPinNumber == 18 || digPinNumber == 19) // 10 pieces
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gpioNum = GPIO_1;
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// port 2 - led and button
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else if (digPinNumber == LED_BUILTIN || digPinNumber == BTN_BUILTIN)
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gpioNum = GPIO_2;
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return gpioNum;
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}
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// determines the pin address inside the port by the board pin number
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HAL_PinsTypeDef digitalPinToBitMask(uint32_t digPinNumber)
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{
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if (digPinNumber < pinCommonQty())
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{
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HAL_PinsTypeDef mask;
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// if spi is on default pin 1.3 is needed for spi, D10 is replaced to pin 1.4
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if (spiNssPinIsBlocked && (digPinNumber == 10))
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mask = GPIO_PIN_4;
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else
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mask = digitalPinToGpioPinArray[digPinNumber];
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return mask;
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}
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else
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return NC;
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}
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uint16_t pinCommonQty(void)
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{
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return (uint16_t)(sizeof(digitalPinToGpioPinArray)/sizeof(digitalPinToGpioPinArray[0]));
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}
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// the function returns a reference to the OUTPUT address of the GPIO register
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uint32_t* portOutputRegister(GPIO_TypeDef* GPIO_x)
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{
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return &GPIO_x->OUTPUT_;
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}
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// ---------------------- АЦП ---------------------- //
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// determines the ADC channel number by the board pin number
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uint32_t analogInputToChannelNumber(uint32_t PinNumber)
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{
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uint32_t adcChannel = 0;
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switch (PinNumber)
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{
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case PIN_A0:
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adcChannel = ADC_CHANNEL0;
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break;
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case PIN_A1:
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adcChannel = ADC_CHANNEL1;
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break;
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case PIN_A2:
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adcChannel = ADC_CHANNEL3;
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break;
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case PIN_A3:
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adcChannel = ADC_CHANNEL4;
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break;
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case PIN_A4:
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case PIN_A5:
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adcChannel = ADC_CHANNEL5;
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break;
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default:
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adcChannel = NC;
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}
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return adcChannel;
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}
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// ---------------------- PWM ---------------------- //
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bool digitalPinHasPWM(uint8_t p)
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{
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bool ret = false;
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// if spi is in use D10 cannot work as pwm
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if (spiNssPinIsBlocked && (p == 10))
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ret = false;
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else if ((p) == 3 || (p) == 5 || (p) == 6 || (p) == 9 || (p) == 10 || (p) == 11)
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ret = true;
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return ret;
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}
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// function is used only if digitalPinHasPWM() is true
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TIMER32_TypeDef* pwmPinToTimer(uint32_t digPinNumber)
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{
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TIMER32_TypeDef* timerNum = NULL;
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// timer 1
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if (digPinNumber == 3 || digPinNumber == 5 || digPinNumber == 6 || digPinNumber == 9)
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timerNum = TIMER32_1;
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// timer 2
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else if (digPinNumber == 10 || digPinNumber == 11)
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timerNum = TIMER32_2;
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return timerNum;
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}
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// function is used only if digitalPinHasPWM() is true
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HAL_TIMER32_CHANNEL_IndexTypeDef pwmPinToTimerChannel(uint32_t digPinNumber)
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{
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HAL_TIMER32_CHANNEL_IndexTypeDef channel = 0;
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if (digPinNumber == 3) channel = TIMER32_CHANNEL_0;
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else if (digPinNumber == 5 || digPinNumber == 11) channel = TIMER32_CHANNEL_1;
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else if (digPinNumber == 6) channel = TIMER32_CHANNEL_2;
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else if (digPinNumber == 9 || digPinNumber == 10) channel = TIMER32_CHANNEL_3;
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return channel;
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}
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// ---------------------- interrupts ---------------------- //
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// interrupt table
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// index = interrupt number. In each row {digitalPinNumber, IntLineValue, IntMuxValue}
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const uint8_t interruptInfo[EXTERNAL_NUM_INTERRUPTS][3] =
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{
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{ 2, GPIO_LINE_2, GPIO_MUX_LINE_2_PORT0_10}, // INT0
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{ 3, GPIO_LINE_0, GPIO_MUX_LINE_0_PORT0_0}, // INT1
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{ 4, GPIO_LINE_4, GPIO_MUX_LINE_4_PORT0_8}, // INT2
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{ 5, GPIO_LINE_1, GPIO_MUX_LINE_1_PORT0_1}, // INT3
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{ 8, GPIO_LINE_5, GPIO_MUX_LINE_5_PORT1_9}, // INT4
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{ 9, GPIO_LINE_3, GPIO_MUX_LINE_3_PORT0_3}, // INT5
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{BTN_BUILTIN, GPIO_LINE_6, GPIO_MUX_LINE_6_PORT2_6}, // INT6 (button)
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};
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uint32_t interruptToDigitalPin(uint8_t interruptNum)
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{
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return interruptInfo[interruptNum][0];
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}
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uint32_t interruptToGpioIntLine(uint8_t interruptNum)
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{
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return (uint32_t)interruptInfo[interruptNum][1];
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}
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uint32_t interruptToGpioIntMux(uint8_t interruptNum)
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{
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return (uint32_t)interruptInfo[interruptNum][2];
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}
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int8_t gpioIntLineToInterrupt(uint32_t gpioIntLine)
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{
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for (uint8_t i = 0; i < EXTERNAL_NUM_INTERRUPTS; i++)
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{
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if (interruptInfo[i][1] == gpioIntLine)
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return i;
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}
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return NOT_AN_INTERRUPT;
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}
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int8_t digitalPinToInterrupt(uint32_t digPinNumber)
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{
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for (uint8_t i = 0; i < EXTERNAL_NUM_INTERRUPTS; i++)
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{
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if (interruptInfo[i][0] == digPinNumber)
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return i;
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}
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return NOT_AN_INTERRUPT;
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} |