142 lines
3.3 KiB
C
142 lines
3.3 KiB
C
#include "bsp_wf5803.h"
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#include "CONFIG.h"
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static uint8_t Peripheral_TaskID = 0xff;
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void SPICs_Start(void)
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{
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GPIOA_ResetBits(GPIO_Pin_6);
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}
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void SPICs_Stop(void)
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{
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GPIOA_SetBits(GPIO_Pin_6);
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}
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uint8_t WF5803_SendByte(uint8_t data)
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{
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R8_SPI1_BUFFER = data;
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while (!(R8_SPI1_INT_FLAG & RB_SPI_FREE))
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;
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return (R8_SPI1_BUFFER);
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}
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void WF5803_WriteReg(uint8_t Address, uint8_t value)
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{
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SPICs_Start();
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WF5803_SendByte(0x00);
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WF5803_SendByte(Address);
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WF5803_SendByte(value);
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SPICs_Stop();
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}
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uint8_t WF5803_ReadReg(uint8_t addr)
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{
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uint8_t value;
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SPICs_Start();
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WF5803_SendByte(0x80);
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WF5803_SendByte(addr);
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value = WF5803_SendByte(0xFF);
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SPICs_Stop();
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return value;
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}
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void WF5803_Init(void)
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{
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/**
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* CSB: PA6
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* SCL: PA0
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* SDA: PA1
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* SDO: PA2
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*/
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// spi初始化，模式0
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GPIOA_ModeCfg(GPIO_Pin_0 | GPIO_Pin_1 | GPIO_Pin_6 | GPIO_Pin_3, GPIO_ModeOut_PP_5mA);
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GPIOA_ModeCfg(GPIO_Pin_2, GPIO_ModeIN_Floating);
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SPI1_MasterDefInit();
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SPICs_Stop();
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WF5803_WriteReg(0x00, 0x81); // 配置spi为四线模式
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}
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long reading = 0;
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float press = 0;
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float temp = 0;
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float fDat = 0;
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float press_air = 101.0f;
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int a = 1;
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uint8_t RawData[5];
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uint8_t *GetSensorData(void)
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{
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memset(RawData, 0, sizeof(uint8_t) * 5);
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WF5803_WriteReg(0x30, 0x0a);
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DelayMs(50);
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// 气压数据
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RawData[0] = WF5803_ReadReg(0x06);
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RawData[1] = WF5803_ReadReg(0x07);
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RawData[2] = WF5803_ReadReg(0x08);
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// 温度数据
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RawData[3] = WF5803_ReadReg(0x09);
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RawData[4] = WF5803_ReadReg(0x0a);
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// for(int i=0; i<5; i++)
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// {
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// PRINT("RawData[%d] = %x\r\n", i,RawData[i]);
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// }
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return RawData;
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}
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void SensorData_Process(void)
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{
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uint8_t *p1 = GetSensorData();
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reading = p1[0];
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reading = reading << 8;
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reading |= p1[1];
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reading = reading << 8;
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reading |= p1[2];
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if (reading >= 8388608)
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{
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fDat = (int32_t)(reading - 16777216) / 8388608.0f;
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}
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else
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{
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fDat = reading / 8388608.0f;
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}
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press = fDat * 125 + 17.5; // WF5803_1BAR 如果是使用10m级别的深传就使用这个
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// if (a) {press_air = press ; a = 0;}
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// press = press_air > press ? press_air : press;
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//
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// int deep_100 = (int)(100*((press - press_air)/0.098f));
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// //printf("P=%d.%d pa\r\n",(int)press,((int)(press*10000.0f)%10000));`
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// printf("D=%d.%d cm\r\n",deep_100/100,deep_100%100);
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reading = p1[3];
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reading = reading << 8;
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reading |= p1[4];
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if (reading > 32768)
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{
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temp = (reading - 65844) / 256.0f;
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}
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else
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{
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temp = (reading - 308) / 256.0f;
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}
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// PRINT("--s-1--\r\n");
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PRINT("P=%d.%d pa\r\n", (int)(press * 1000), ((int)(press * 10000000.0f) % 10000));
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// PRINT("T=%d.%d \r\n", (int)temp, ((int)(temp * 100.0f) % 100));
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}
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uint16_t wf5803_ProcessEvent(uint8_t task_id, uint16_t events)
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{
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if (events & WF5803_EVT)
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{
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SensorData_Process();
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tmos_start_task(Peripheral_TaskID, WF5803_EVT, MS1_TO_SYSTEM_TIME(100));
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return (events ^ WF5803_EVT);
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}
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return 0;
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}
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void BSPWF5803_Init(void)
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{
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WF5803_Init();
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Peripheral_TaskID = TMOS_ProcessEventRegister(wf5803_ProcessEvent);
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tmos_set_event(Peripheral_TaskID, WF5803_EVT);
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}
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