IoT_SCV_CH584M/APP/bsp_wf5803.c

#include "bsp_wf5803.h"
#include "CONFIG.h"

static uint8_t Peripheral_TaskID = 0xff;

void SPICs_Start(void)
{
    GPIOA_ResetBits(GPIO_Pin_6);
}
void SPICs_Stop(void)
{
    GPIOA_SetBits(GPIO_Pin_6);
}
uint8_t WF5803_SendByte(uint8_t data)
{
    R8_SPI1_BUFFER = data;
    while (!(R8_SPI1_INT_FLAG & RB_SPI_FREE))
        ;
    return (R8_SPI1_BUFFER);
}
void WF5803_WriteReg(uint8_t Address, uint8_t value)
{
    SPICs_Start();
    WF5803_SendByte(0x00);
    WF5803_SendByte(Address);
    WF5803_SendByte(value);
    SPICs_Stop();
}
uint8_t WF5803_ReadReg(uint8_t addr)
{
    uint8_t value;
    SPICs_Start();
    WF5803_SendByte(0x80);
    WF5803_SendByte(addr);
    value = WF5803_SendByte(0xFF);
    SPICs_Stop();
    return value;
}
void WF5803_Init(void)
{
    /**
     * CSB: PA6
     * SCL: PA0
     * SDA: PA1
     * SDO: PA2
     */
    // spi<70><69>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD>ģʽ0
    GPIOA_ModeCfg(GPIO_Pin_0 | GPIO_Pin_1 | GPIO_Pin_6 | GPIO_Pin_3, GPIO_ModeOut_PP_5mA);
    GPIOA_ModeCfg(GPIO_Pin_2, GPIO_ModeIN_Floating);
    SPI1_MasterDefInit();

    SPICs_Stop();
    WF5803_WriteReg(0x00, 0x81); // <20><><EFBFBD><EFBFBD>spiΪ<69><CEAA><EFBFBD><EFBFBD>ģʽ
}

long reading = 0;
float press = 0;
float temp = 0;
float fDat = 0;
float press_air = 101.0f;
int a = 1;
uint8_t RawData[5];

uint8_t *GetSensorData(void)
{
    memset(RawData, 0, sizeof(uint8_t) * 5);
    WF5803_WriteReg(0x30, 0x0a);
    DelayMs(50);
    // <20><>ѹ<EFBFBD><D1B9><EFBFBD><EFBFBD>
    RawData[0] = WF5803_ReadReg(0x06);
    RawData[1] = WF5803_ReadReg(0x07);
    RawData[2] = WF5803_ReadReg(0x08);
    // <20>¶<EFBFBD><C2B6><EFBFBD><EFBFBD><EFBFBD>
    RawData[3] = WF5803_ReadReg(0x09);
    RawData[4] = WF5803_ReadReg(0x0a);

    //    for(int i=0; i<5; i++)
    //    {
    //        PRINT("RawData[%d] = %x\r\n", i,RawData[i]);
    //    }
    return RawData;
}
void SensorData_Process(void)
{
    uint8_t *p1 = GetSensorData();
    reading = p1[0];
    reading = reading << 8;
    reading |= p1[1];
    reading = reading << 8;
    reading |= p1[2];
    if (reading >= 8388608)
    {
        fDat = (int32_t)(reading - 16777216) / 8388608.0f;
    }
    else
    {
        fDat = reading / 8388608.0f;
    }

    press = fDat * 125 + 17.5; // WF5803_1BAR    <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><CAB9>10m<30><6D><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EEB4AB>ʹ<EFBFBD><CAB9><EFBFBD><EFBFBD><EFBFBD><EFBFBD>

    //    if (a) {press_air = press ; a = 0;}
    //    press = press_air > press ? press_air : press;
    //
    //    int deep_100 = (int)(100*((press - press_air)/0.098f));
    //    //printf("P=%d.%d pa\r\n",(int)press,((int)(press*10000.0f)%10000));`
    //    printf("D=%d.%d cm\r\n",deep_100/100,deep_100%100);

    reading = p1[3];
    reading = reading << 8;
    reading |= p1[4];
    if (reading > 32768)
    {
        temp = (reading - 65844) / 256.0f;
    }
    else
    {
        temp = (reading - 308) / 256.0f;
    }
    // PRINT("--s-1--\r\n");
    PRINT("P=%d.%d pa\r\n", (int)(press * 1000), ((int)(press * 10000000.0f) % 10000));
    // PRINT("T=%d.%d \r\n", (int)temp, ((int)(temp * 100.0f) % 100));
}

uint16_t wf5803_ProcessEvent(uint8_t task_id, uint16_t events)
{
    if (events & WF5803_EVT)
    {
        SensorData_Process();
        tmos_start_task(Peripheral_TaskID, WF5803_EVT, MS1_TO_SYSTEM_TIME(100));
        return (events ^ WF5803_EVT);
    }
    return 0;
}

void BSPWF5803_Init(void)
{
    WF5803_Init();
    Peripheral_TaskID = TMOS_ProcessEventRegister(wf5803_ProcessEvent);
    tmos_set_event(Peripheral_TaskID, WF5803_EVT);
}