353 lines
7.5 KiB
C++
353 lines
7.5 KiB
C++
#include "BM8563.h"
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BM8563::BM8563()
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{
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}
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void BM8563::begin(void)
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{
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WriteReg(0x00,0x00);
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WriteReg(0x01,0x00);
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WriteReg(0x0D,0x00);
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}
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void BM8563::WriteReg(uint8_t reg, uint8_t data)
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{
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myWire->beginTransmission(BM8563_ADRESS);
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myWire->write(reg);
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myWire->write(data);
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myWire->endTransmission();
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}
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uint8_t BM8563::ReadReg(uint8_t reg)
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{
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myWire->beginTransmission(BM8563_ADRESS);
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myWire->write(reg);
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myWire->endTransmission();
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myWire->requestFrom(BM8563_ADRESS, 1);
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return myWire->read();
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}
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void BM8563::GetBm8563Time(void)
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{
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myWire->beginTransmission(BM8563_ADRESS);
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myWire->write(0x02);
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myWire->endTransmission();
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myWire->requestFrom(BM8563_ADRESS, 7);
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while (myWire->available())
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{
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trdata[0] = myWire->read();
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trdata[1] = myWire->read();
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trdata[2] = myWire->read();
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trdata[3] = myWire->read();
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trdata[4] = myWire->read();
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trdata[5] = myWire->read();
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trdata[6] = myWire->read();
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}
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DataMask();
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Bcd2asc();
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Str2Time();
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}
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void BM8563::Str2Time(void)
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{
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Second = (asc[0] - 0x30) * 10 + asc[1] - 0x30;
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Minute = (asc[2] - 0x30) * 10 + asc[3] - 0x30;
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Hour = (asc[4] - 0x30) * 10 + asc[5] - 0x30;
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/*
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uint8_t Hour;
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uint8_t Week;
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uint8_t Day;
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uint8_t Month;
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uint8_t Year;
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*/
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}
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void BM8563::DataMask()
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{
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trdata[0] = trdata[0] & 0x7f; //秒
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trdata[1] = trdata[1] & 0x7f; //分
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trdata[2] = trdata[2] & 0x3f; //时
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trdata[3] = trdata[3] & 0x3f; //日
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trdata[4] = trdata[4] & 0x07; //星期
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trdata[5] = trdata[5] & 0x1f; //月
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trdata[6] = trdata[6] & 0xff; //年
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}
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/********************************************************************
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函 数 名： void Bcd2asc(void)
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功 能： bcd 码转换成 asc 码，供Lcd显示用
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说 明：
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调 用：
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入口参数：
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返 回 值：无
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***********************************************************************/
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void BM8563::Bcd2asc(void)
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{
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uint8_t i, j;
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for (j = 0, i = 0; i < 7; i++)
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{
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asc[j++] = (trdata[i] & 0xf0) >> 4 | 0x30; /*格式为: 秒 分 时 日 月 星期 年 */
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asc[j++] = (trdata[i] & 0x0f) | 0x30;
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}
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}
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uint8_t BM8563::Bcd2ToByte(uint8_t Value)
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{
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uint8_t tmp = 0;
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tmp = ((uint8_t)(Value & (uint8_t)0xF0) >> (uint8_t)0x4) * 10;
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return (tmp + (Value & (uint8_t)0x0F));
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}
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uint8_t BM8563::ByteToBcd2(uint8_t Value)
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{
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uint8_t bcdhigh = 0;
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while (Value >= 10)
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{
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bcdhigh++;
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Value -= 10;
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}
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return ((uint8_t)(bcdhigh << 4) | Value);
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}
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void BM8563::GetTime(RTC_TimeTypeDef *RTC_TimeStruct)
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{
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//if()
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uint8_t buf[3] = {0};
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myWire->beginTransmission(BM8563_ADRESS);
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myWire->write(0x02);
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myWire->endTransmission();
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myWire->requestFrom(BM8563_ADRESS, 3);
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while (myWire->available())
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{
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buf[0] = myWire->read();
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buf[1] = myWire->read();
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buf[2] = myWire->read();
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}
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RTC_TimeStruct->Seconds = Bcd2ToByte(buf[0] & 0x7f); //秒
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RTC_TimeStruct->Minutes = Bcd2ToByte(buf[1] & 0x7f); //分
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RTC_TimeStruct->Hours = Bcd2ToByte(buf[2] & 0x3f); //时
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}
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void BM8563::SetTime(RTC_TimeTypeDef *RTC_TimeStruct)
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{
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if (RTC_TimeStruct == NULL)
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return;
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myWire->beginTransmission(BM8563_ADRESS);
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myWire->write(0x02);
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myWire->write(ByteToBcd2(RTC_TimeStruct->Seconds));
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myWire->write(ByteToBcd2(RTC_TimeStruct->Minutes));
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myWire->write(ByteToBcd2(RTC_TimeStruct->Hours));
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myWire->endTransmission();
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}
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void BM8563::GetDate(RTC_DateTypeDef *RTC_DateStruct)
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{
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uint8_t buf[4] = {0};
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myWire->beginTransmission(BM8563_ADRESS);
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myWire->write(0x05);
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myWire->endTransmission();
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myWire->requestFrom(BM8563_ADRESS, 4);
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while (myWire->available())
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{
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buf[0] = myWire->read();
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buf[1] = myWire->read();
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buf[2] = myWire->read();
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buf[3] = myWire->read();
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}
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RTC_DateStruct->Date = Bcd2ToByte(buf[0] & 0x3f);
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RTC_DateStruct->WeekDay = Bcd2ToByte(buf[1] & 0x07);
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RTC_DateStruct->Month = Bcd2ToByte(buf[2] & 0x1f);
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if (buf[2] & 0x80)
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{
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RTC_DateStruct->Year = 1900 + Bcd2ToByte(buf[3] & 0xff);
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}
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else
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{
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RTC_DateStruct->Year = 2000 + Bcd2ToByte(buf[3] & 0xff);
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}
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}
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void BM8563::SetDate(RTC_DateTypeDef *RTC_DateStruct)
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{
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if (RTC_DateStruct == NULL)
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return;
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myWire->beginTransmission(BM8563_ADRESS);
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myWire->write(0x05);
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myWire->write(ByteToBcd2(RTC_DateStruct->Date));
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myWire->write(ByteToBcd2(RTC_DateStruct->WeekDay));
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if (RTC_DateStruct->Year < 2000)
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{
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myWire->write(ByteToBcd2(RTC_DateStruct->Month) | 0x80);
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myWire->write(ByteToBcd2((uint8_t)(RTC_DateStruct->Year % 100)));
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}
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else
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{
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/* code */
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myWire->write(ByteToBcd2(RTC_DateStruct->Month) | 0x00);
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myWire->write(ByteToBcd2((uint8_t)(RTC_DateStruct->Year % 100)));
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}
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myWire->endTransmission();
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}
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int BM8563::SetAlarmIRQ(int afterSeconds)
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{
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uint8_t reg_value = 0;
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reg_value = ReadReg(0x01);
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if (afterSeconds < 0)
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{
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reg_value &= ~(1 << 0);
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WriteReg(0x01, reg_value);
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reg_value = 0x03;
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WriteReg(0x0E, reg_value);
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return -1;
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}
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uint8_t type_value = 2;
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uint8_t div = 1;
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if (afterSeconds > 255)
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{
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div = 60;
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type_value = 0x83;
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}
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else
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{
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type_value = 0x82;
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}
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afterSeconds = (afterSeconds / div) & 0xFF;
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WriteReg(0x0F, afterSeconds);
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WriteReg(0x0E, type_value);
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reg_value |= (1 << 0);
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reg_value &= ~(1 << 7);
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WriteReg(0x01, reg_value);
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return afterSeconds * div;
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}
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int BM8563::SetAlarmIRQ(const RTC_TimeTypeDef &RTC_TimeStruct)
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{
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uint8_t irq_enable = false;
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uint8_t out_buf[4] = {0x80, 0x80, 0x80, 0x80};
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if (RTC_TimeStruct.Minutes >= 0)
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{
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irq_enable = true;
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out_buf[0] = ByteToBcd2(RTC_TimeStruct.Minutes) & 0x7f;
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}
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if (RTC_TimeStruct.Hours >= 0)
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{
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irq_enable = true;
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out_buf[1] = ByteToBcd2(RTC_TimeStruct.Hours) & 0x3f;
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}
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//out_buf[2] = 0x00;
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//out_buf[3] = 0x00;
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uint8_t reg_value = ReadReg(0x01);
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if (irq_enable)
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{
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reg_value |= (1 << 1);
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}
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else
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{
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reg_value &= ~(1 << 1);
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}
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for (int i = 0; i < 4; i++)
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{
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WriteReg(0x09 + i, out_buf[i]);
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}
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WriteReg(0x01, reg_value);
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return irq_enable ? 1 : 0;
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}
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int BM8563::SetAlarmIRQ(const RTC_DateTypeDef &RTC_DateStruct, const RTC_TimeTypeDef &RTC_TimeStruct)
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{
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uint8_t irq_enable = false;
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uint8_t out_buf[4] = {0x80, 0x80, 0x80, 0x80};
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if (RTC_TimeStruct.Minutes >= 0)
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{
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irq_enable = true;
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out_buf[0] = ByteToBcd2(RTC_TimeStruct.Minutes) & 0x7f;
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}
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if (RTC_TimeStruct.Hours >= 0)
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{
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irq_enable = true;
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out_buf[1] = ByteToBcd2(RTC_TimeStruct.Hours) & 0x3f;
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}
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if (RTC_DateStruct.Date >= 0)
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{
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irq_enable = true;
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out_buf[2] = ByteToBcd2(RTC_DateStruct.Date) & 0x3f;
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}
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if (RTC_DateStruct.WeekDay >= 0)
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{
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irq_enable = true;
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out_buf[3] = ByteToBcd2(RTC_DateStruct.WeekDay) & 0x07;
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}
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uint8_t reg_value = ReadReg(0x01);
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if (irq_enable)
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{
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reg_value |= (1 << 1);
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}
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else
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{
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reg_value &= ~(1 << 1);
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}
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for (int i = 0; i < 4; i++)
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{
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WriteReg(0x09 + i, out_buf[i]);
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}
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WriteReg(0x01, reg_value);
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return irq_enable ? 1 : 0;
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}
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void BM8563::clearIRQ()
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{
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uint8_t data = ReadReg(0x01);
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WriteReg(0x01, data & 0xf3);
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}
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void BM8563::disableIRQ()
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{
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clearIRQ();
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uint8_t data = ReadReg(0x01);
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WriteReg(0x01, data & 0xfC);
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}
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