244 lines
7.1 KiB
C
244 lines
7.1 KiB
C
/*
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*********************************************************************************************************
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* IAR Development Kits
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* on the
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*
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* Nano130
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*
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* Filename : spi_flash.c
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* Version : V1.00
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* Programmer(s) : Qian Xianghong
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*********************************************************************************************************
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*/
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#include "includes.h"
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// 片选
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#define LIS2DH12_CS_LOW() LL_GPIO_ResetOutputPin(GPIOB, LL_GPIO_PIN_12)
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#define LIS2DH12_CS_HIGH() LL_GPIO_SetOutputPin(GPIOB, LL_GPIO_PIN_12)
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// 加速度计ID
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uint8_t Accelero_ID = 0;
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// 运动状态（默认为1，万一加速度计有问题）
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volatile uint8_t Motion_Status = 1;
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// 运动检测：第一次需要定位
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volatile uint8_t Motion_Detected = 1;
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typedef unsigned char uchar;
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typedef unsigned short ushort;
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typedef unsigned int uint;
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//****************************************
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// 定义LIS2DH12内部地址
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//****************************************
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#define CTRL_REG1 0x20
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#define CTRL_REG2 0x21
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#define CTRL_REG3 0x22
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#define CTRL_REG4 0x23
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#define CTRL_REG5 0x24
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#define CTRL_REG6 0x25
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#define ACT_THS 0x3E
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#define ACT_DUR 0x3F
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#define WHO_AM_I 0x0F //地址寄存器(默认数值0x33，只读)
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uchar Single_WriteSPI(uchar REG_Address,uchar REG_data)
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{
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LIS2DH12_CS_LOW();
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// Write Address
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*(__IO uint8_t *)&SPI2->DR = (REG_Address & 0x3F);
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while(!(SPI2->SR & SPI_SR_RXNE));
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*(__IO uint8_t *)&SPI2->DR;
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// Write data
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*(__IO uint8_t *)&SPI2->DR = REG_data;
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while(!(SPI2->SR & SPI_SR_RXNE));
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*(__IO uint8_t *)&SPI2->DR;
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LIS2DH12_CS_HIGH();
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return 1;
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}
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uchar Single_ReadSPI(uchar REG_Address, uchar *REG_data)
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{
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LIS2DH12_CS_LOW();
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// Read Address
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*(__IO uint8_t *)&SPI2->DR = ((REG_Address & 0x3F) | 0x80);
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while(!(SPI2->SR & SPI_SR_RXNE));
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*(__IO uint8_t *)&SPI2->DR;
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// 提供Clock
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*(__IO uint8_t *)&SPI2->DR = 0;
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while(!(SPI2->SR & SPI_SR_RXNE));
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*REG_data = *(__IO uint8_t *)&SPI2->DR;
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LIS2DH12_CS_HIGH();
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return 1;
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}
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// 读取运动状态
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void Accelero_ReadStatus(uint8_t int2_pin)
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{
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// 当前运动状态
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Motion_Status = !int2_pin; // Active low
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PRINTF("\r\nHard Motion status = %d\r\n", Motion_Status);
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// 检测到了运动（需要重新定位）
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if(Motion_Status)
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Motion_Detected = 1;
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}
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/**
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* @brief EXTI line detection callback.
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* @param GPIO_Pin: Specifies the port pin connected to corresponding EXTI line.
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* @retval None
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*/
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void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin)
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{
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if(GPIO_Pin == LL_EXTI_LINE_10)
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{
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if(Wakeup_Sleeping)
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{
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SysTick->CTRL |= (SysTick_CTRL_ENABLE_Msk | SysTick_CTRL_TICKINT_Msk);
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delay_ms(10);
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Vcc_Enable();
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delay_ms(40);
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Wakeup_Sleeping = 0;
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printf("\nWakeup by Accelero ...\n");
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}
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// 读取运动状态
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Accelero_ReadStatus(LL_GPIO_IsInputPinSet(GPIOD, LL_GPIO_PIN_10));
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}
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}
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// 加速度中断处理，本函数被【key.c】模块中【GPDEF_IRQHandler】函数调用
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void Accelero_Init()
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{
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LL_EXTI_InitTypeDef EXTI_InitStruct = {0};
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LL_GPIO_InitTypeDef GPIO_InitStruct = {0};
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LL_AHB2_GRP1_EnableClock(LL_AHB2_GRP1_PERIPH_GPIOB);
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/**SPI2 GPIO Configuration
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PB13 ------> SPI2_SCK
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PB14 ------> SPI2_MISO
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PB15 ------> SPI2_MOSI
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*/
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GPIO_InitStruct.Pin = LL_GPIO_PIN_13|LL_GPIO_PIN_14|LL_GPIO_PIN_15;
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GPIO_InitStruct.Mode = LL_GPIO_MODE_ALTERNATE;
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GPIO_InitStruct.Speed = LL_GPIO_SPEED_FREQ_MEDIUM;
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GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_PUSHPULL;
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GPIO_InitStruct.Pull = LL_GPIO_PULL_NO;
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GPIO_InitStruct.Alternate = LL_GPIO_AF_5;
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LL_GPIO_Init(GPIOB, &GPIO_InitStruct);
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/**/
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LL_GPIO_SetOutputPin(GPIOB, LL_GPIO_PIN_12);
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/**/
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GPIO_InitStruct.Pin = LL_GPIO_PIN_12;
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GPIO_InitStruct.Mode = LL_GPIO_MODE_OUTPUT;
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GPIO_InitStruct.Speed = LL_GPIO_SPEED_FREQ_LOW;
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GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_PUSHPULL;
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GPIO_InitStruct.Pull = LL_GPIO_PULL_NO;
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LL_GPIO_Init(GPIOB, &GPIO_InitStruct);
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LL_AHB2_GRP1_EnableClock(LL_AHB2_GRP1_PERIPH_GPIOD);
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/**/
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LL_SYSCFG_SetEXTISource(LL_SYSCFG_EXTI_PORTD, LL_SYSCFG_EXTI_LINE10);
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/**/
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EXTI_InitStruct.Line_0_31 = LL_EXTI_LINE_10;
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EXTI_InitStruct.Line_32_63 = LL_EXTI_LINE_NONE;
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EXTI_InitStruct.LineCommand = ENABLE;
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EXTI_InitStruct.Mode = LL_EXTI_MODE_IT;
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EXTI_InitStruct.Trigger = LL_EXTI_TRIGGER_RISING_FALLING;
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LL_EXTI_Init(&EXTI_InitStruct);
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/**/
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LL_GPIO_SetPinPull(GPIOD, LL_GPIO_PIN_10, LL_GPIO_PULL_UP);
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/**/
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LL_GPIO_SetPinMode(GPIOD, LL_GPIO_PIN_10, LL_GPIO_MODE_INPUT);
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}
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// 初始化LIS2DH12
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void Accelero_Open()
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{
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LL_SPI_InitTypeDef SPI_InitStruct = {0};
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LL_EXTI_InitTypeDef EXTI_InitStruct = {0};
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/* Peripheral clock enable */
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LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_SPI2);
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/* SPI2 parameter configuration*/
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SPI_InitStruct.TransferDirection = LL_SPI_FULL_DUPLEX;
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SPI_InitStruct.Mode = LL_SPI_MODE_MASTER;
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SPI_InitStruct.DataWidth = LL_SPI_DATAWIDTH_8BIT;
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SPI_InitStruct.ClockPolarity = LL_SPI_POLARITY_LOW;
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SPI_InitStruct.ClockPhase = LL_SPI_PHASE_1EDGE;
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SPI_InitStruct.NSS = LL_SPI_NSS_SOFT;
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SPI_InitStruct.BaudRate = LL_SPI_BAUDRATEPRESCALER_DIV2;
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SPI_InitStruct.BitOrder = LL_SPI_MSB_FIRST;
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SPI_InitStruct.CRCCalculation = LL_SPI_CRCCALCULATION_DISABLE;
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SPI_InitStruct.CRCPoly = 7;
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LL_SPI_Init(SPI2, &SPI_InitStruct);
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LL_SPI_SetStandard(SPI2, LL_SPI_PROTOCOL_MOTOROLA);
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LL_SPI_DisableNSSPulseMgt(SPI2);
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LL_SPI_SetRxFIFOThreshold(SPI2, LL_SPI_RX_FIFO_TH_QUARTER);
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LL_SPI_Enable(SPI2);
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Single_WriteSPI(CTRL_REG1, 0x5F); //控制寄存器，（100Hz， Low-power mode，Enable XYZ）
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Single_WriteSPI(CTRL_REG2, 0x00); //控制寄存器，（High-pass filter disabled）
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Single_WriteSPI(CTRL_REG3, 0x00); //控制寄存器
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Single_WriteSPI(CTRL_REG4, 0x00); //控制寄存器，（4-wire SPI，Self-test disabled, HR=0, FS= ±2g）
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Single_WriteSPI(CTRL_REG5, 0x00); //控制寄存器，（FIFO disabled）
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Single_WriteSPI(CTRL_REG6, 0x08); //控制寄存器，（Enable activity interrupt on INT2 pin）
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// Activate/Inactivate: 门限寄存器，（x 4g/250 mg）
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if(dcBuff.configDisplay.op_SEND_GPS_DATA) // 槽车最灵敏，只在行驶过程中判断
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Single_WriteSPI(ACT_THS, 4);
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else if(dcBuff.configDisplay.op_USE_CAPACITY_SENSOR) // 杜瓦瓶最不灵敏（电池容量低）
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Single_WriteSPI(ACT_THS, 40);
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else // 罐箱
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Single_WriteSPI(ACT_THS, 20);
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// Activate/Inactivate: 持续时间寄存器
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Single_WriteSPI(ACT_DUR, 40);
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// 读出ID：测试通信是否正常
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Accelero_CheckID();
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// 非罐箱或槽车版，禁止加速度中断
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if(!(dcBuff.configDisplay.op_BOX_VER || dcBuff.configDisplay.op_SEND_GPS_DATA))
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{
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EXTI_InitStruct.Line_0_31 = LL_EXTI_LINE_10;
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EXTI_InitStruct.Line_32_63 = LL_EXTI_LINE_NONE;
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EXTI_InitStruct.LineCommand = DISABLE;
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EXTI_InitStruct.Mode = LL_EXTI_MODE_IT;
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EXTI_InitStruct.Trigger = LL_EXTI_TRIGGER_RISING_FALLING;
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LL_EXTI_Init(&EXTI_InitStruct);
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}
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NVIC_SetPriority(EXTI15_10_IRQn, NVIC_EncodePriority(NVIC_GetPriorityGrouping(),5, 0));
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NVIC_EnableIRQ(EXTI15_10_IRQn);
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}
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// 读出ID放在Accelero_ID(检查加速度计是否正常）
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void Accelero_CheckID()
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{
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// 读出ID：测试通信是否正常
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Single_ReadSPI(WHO_AM_I, &Accelero_ID);
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PRINTF("\r\nAccelero ID = 0x%02X\r\n", Accelero_ID);
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if(Accelero_ID == ACCELERO_ID)
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{
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Motion_Status = !LL_GPIO_IsInputPinSet(GPIOD, LL_GPIO_PIN_10);
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PRINTF("\r\nInit Motion status = %d\r\n", Motion_Status);
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}
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}
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