Razvalyaev
5cc733f4d2
можно выбрать дефолтную периферию, передав в фукнию NULL, а можно и свою кастомную, типа Dallas_BusFirstInit(&hdallas, GPIOA, GPIO_PIN_2); надо теперь расписать все в ридми
122 lines
3.3 KiB
C
122 lines
3.3 KiB
C
/**
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******************************************************************************
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* @file ow_port.c
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* @brief This file includes the driver for port for OneWire purposes
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******************************************************************************
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*/
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#include "ow_port.h"
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#include "onewire.h"
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#include "tim.h"
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/**
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* @brief The internal function is used as gpio pin mode
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* @param OW OneWire HandleTypedef
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* @param Mode Input or Output
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*/
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void OneWire_Pin_Mode(OneWire_t* OW, PinMode Mode)
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{
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#if defined(UART_Driver)
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#elif defined(CMSIS_Driver)
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volatile uint32_t *config_reg = (OW->DataPinNumb < 8) ? &(OW->DataPort->CRL) : &(OW->DataPort->CRH);
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uint32_t pin_pos = (OW->DataPinNumb < 8) ? (OW->DataPinNumb * 4) : ((OW->DataPinNumb - 8) * 4);
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// —брос текущих 4 бит (CNF + MODE)
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*config_reg &= ~(0xF << pin_pos);
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if (Mode == Input)
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{
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// ¬ход с подт¤жкой или без Ц например, CNF = 0b01, MODE = 0b00
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// «десь устанавливаем вход с подт¤жкой:
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*config_reg |= (0x8 << pin_pos); // CNF=10, MODE=00 (вход с подт¤жкой)
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OW->DataPort->ODR |= (1 << OW->DataPinNumb); // ¬ключить подт¤жку вверх
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}
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else
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{
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// ¬ыход push-pull, 2 ћ√ц Ц MODE = 0b10, CNF = 0b00
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*config_reg |= (0x2 << pin_pos);
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}
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#elif defined(LL_Driver)
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if(Mode == Input)
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{
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LL_GPIO_SetPinMode(OW->DataPort, OW->DataPin, LL_GPIO_MODE_INPUT);
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}else{
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LL_GPIO_SetPinMode(OW->DataPort, OW->DataPin, LL_GPIO_MODE_OUTPUT);
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}
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#else
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GPIO_InitTypeDef GPIO_InitStruct = {0};
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GPIO_InitStruct.Pin = OW->DataPin;
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if(Mode == Input)
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{
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GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
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}else{
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GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
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GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
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}
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HAL_GPIO_Init(OW->DataPort, &GPIO_InitStruct);
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#endif
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}
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/**
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* @brief The internal function is used as gpio pin level
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* @param OW OneWire HandleTypedef
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* @param Mode Level: Set/High = 1, Reset/Low = 0
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*/
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void OneWire_Pin_Level(OneWire_t* OW, uint8_t Level)
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{
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#if defined(UART_Driver)
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#elif defined(CMSIS_Driver)
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if (Level != GPIO_PIN_RESET)
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{
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OW->DataPort->BSRR = OW->DataPin;
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}
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else
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{
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OW->DataPort->BSRR = (uint32_t)OW->DataPin << 16u;
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}
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#elif defined(LL_Driver)
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if(Level == 1)
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{
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LL_GPIO_SetOutputPin(OW->DataPort, OW->DataPin);
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}else{
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LL_GPIO_ResetOutputPin(OW->DataPort, OW->DataPin);
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}
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#else
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HAL_GPIO_WritePin(OW->DataPort, OW->DataPin, Level);
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#endif
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}
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/**
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* @brief The internal function is used to read data pin
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* @retval Pin level status
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* @param OW OneWire HandleTypedef
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*/
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uint8_t OneWire_Pin_Read(OneWire_t* OW)
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{
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#if defined(UART_Driver)
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return 0;
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#elif defined(CMSIS_Driver)
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return ((OW->DataPort->IDR & OW->DataPin) != 0x00U) ? 1 : 0;
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#elif defined(LL_Driver)
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return ((OW->DataPort->IDR & OW->DataPin) != 0x00U) ? 1 : 0;
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#else
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return HAL_GPIO_ReadPin(OW->DataPort, OW->DataPin);
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#endif
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}
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uint32_t tim_1us_period = OW_TIM_1US_PERIOD;
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void OneWire_Delay_us(uint32_t us)
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{
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uint32_t ticks = us * tim_1us_period;
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uint16_t start = OW_TIM->CNT;
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uint32_t elapsed = 0;
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uint16_t prev = start;
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while (elapsed < ticks)
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{
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uint16_t curr = OW_TIM->CNT;
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uint16_t delta = (uint16_t)(curr - prev); // учЄт переполнени¤
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elapsed += delta;
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prev = curr;
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}
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}
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