Merge pull request #6 from armku/master

增加时钟芯片驱动 IIC RX8025T

Drivers/I2C/RX8025T/RX8025T.cpp

@@ -0,0 +1,181 @@
+#include "RX8025T.h"
+
+/* RX8025T I2C读写地址 */
+#define RX8025T_RD_ADDR		0x65
+#define RX8025T_WR_ADDR		0x64
+/* RX8025T 寄存器地址 */
+#define SEC_ADDR			0x00
+#define MIN_ADDR			0x01
+#define HOUR_ADDR			0x02
+#define WEEK_ADDR			0x03
+#define DAY_ADDR			0x04
+#define MONTH_ADDR			0x05
+#define YEAR_ADDR			0x06
+#define RAM_ADDR			0x07
+#define MIN_ALM_ADDR	0x08
+#define HOUR_ALM_ADDR	0x09
+#define WEEK_ALM_ADDR	0x0A
+#define DAY_ALM_ADDR	0x0A
+#define TMR_CNT0_ADDR	0x0B
+#define TMR_CNT1_ADDR	0x0C
+#define EXT_REG_ADDR	0x0D
+#define FLG_REG_ADDR	0x0E
+#define CTL_REG_ADDR	0x0F
+
+RX8025T::RX8025T(byte devaddr, int wnus)
+{
+	this->IIC = nullptr;
+	this->Address = devaddr;
+	this->devaddr = devaddr;	
+	for (int i = 0; i < ArrayLength(this->buf); i++)
+	{
+		this->buf[i] = 0;
+	}
+}
+byte BCD2Dec(byte val)
+{
+    return (val >> 4) *10+(val &0x0f);
+}
+
+byte Dec2BCD(byte val)
+{
+    return ((val / 10) << 4)+(val % 10);
+}
+
+void RX8025T::Init()
+{
+    this->devaddr = RX8025T_WR_ADDR;
+    
+    buf[RAM_ADDR] = 0x00;
+    RegWrite(RAM_ADDR, 1); //不使用精度调整
+
+    buf[FLG_REG_ADDR] = 0x24; //0010 0100,bit5:1 24小时制，bit2:0 INTA输出1HZ电平，即秒脉冲，下降与秒计时同步
+    RegRead(FLG_REG_ADDR, 1); //设置24小时制
+
+ //   RX8025_Read(0x0F, 1); //先读寄存器
+//    buf[0] &= 0xFB; //CTFG设置为0
+//    RX8025_Write(0x0F, 1); //只有这样电平模式才能使用
+
+}
+//
+uint8_t RX8025T::CheckDevice(void)
+{
+	byte re;
+
+    this->IIC->Start(); /* 发送启动信号 */
+    this->IIC->WriteByte(this->devaddr|1);
+    re = this->IIC->WaitAck(false);
+    this->IIC->Stop(); /* 发送停止信号 */
+    return re;
+}
+byte RX8025T::Output1s_Start(void)
+{	
+	//有问题
+	this->buf[EXT_REG_ADDR]=0x00;
+	this->buf[FLG_REG_ADDR]=0x00;
+	this->buf[CTL_REG_ADDR]=0x60;
+	
+	return this->RegWrite(EXT_REG_ADDR,3);	
+}
+byte RX8025T::Output1s_Stop(void)
+{
+	//有问题
+	this->buf[EXT_REG_ADDR]=0x00;
+	this->buf[FLG_REG_ADDR]=0x00;
+	this->buf[CTL_REG_ADDR]=0x40;
+	
+	return this->RegWrite(EXT_REG_ADDR,3);	
+}
+
+//读RX8025寄存器
+int RX8025T::RegRead(byte sadd, byte len)
+{
+    this->IIC->Start();
+    this->IIC->WriteByte(this->devaddr);
+    if (this->IIC->WaitAck(true) == 0)
+    {
+        return 1;
+    }
+    this->IIC->WriteByte(SEC_ADDR);
+    if (this->IIC->WaitAck(true) == 0)
+    {
+        return 1;
+    }
+    this->IIC->Start();
+    this->IIC->WriteByte(this->devaddr|1);
+    if (this->IIC->WaitAck(false) == 0)
+    {
+        return 1;
+    }
+	for(int i=0;i<len;i++)
+	{
+		this->buf[sadd+i] = this->IIC->ReadByte();
+		if (i != len - 1)
+		{
+			this->IIC->Ack(true);
+		}
+		else
+		{
+			this->IIC->Ack(false);
+		}
+	}
+    
+    this->IIC->Stop();
+	return 0;
+}
+
+//写RX8025寄存器
+int RX8025T::RegWrite(byte sadd, byte len)
+{
+    this->IIC->Start();
+    this->IIC->WriteByte(this->devaddr);
+    if (this->IIC->WaitAck(true) == 0)
+    {
+        return 1;
+    }
+	this->IIC->WriteByte(sadd);
+    if (this->IIC->WaitAck(true) == 0)
+    {
+        return 1;
+    }
+    for(int i=0;i<len;i++)
+	{
+		this->IIC->WriteByte(this->buf[sadd+i]);
+		this->IIC->Ack(true);
+		/*if (this->IIC->WaitAck(true) == 0)
+		{
+			return 1;
+		}*/
+	}
+    
+    this->IIC->Stop();
+    return 0;
+}
+
+int RX8025T::LoadTime(DateTime &dt)
+{
+    if (this->RegRead(SEC_ADDR, 17) == 0)
+    {
+        dt.Second = BCD2Dec(this->buf[SEC_ADDR]);
+        dt.Minute = BCD2Dec(this->buf[MIN_ADDR]);
+        dt.Hour = BCD2Dec(this->buf[HOUR_ADDR]);
+        dt.Day = BCD2Dec(this->buf[DAY_ADDR]);
+        dt.Month = BCD2Dec(this->buf[MONTH_ADDR]);
+        dt.Year = 2000+BCD2Dec(this->buf[YEAR_ADDR]);
+        return 0;
+    }
+
+    return 1;
+}
+
+int RX8025T::SaveTime(DateTime &dt)
+{
+	this->buf[SEC_ADDR]=Dec2BCD(dt.Second);
+    this->buf[MIN_ADDR]=Dec2BCD(dt.Minute);
+    this->buf[HOUR_ADDR]=Dec2BCD(dt.Hour);
+    this->buf[DAY_ADDR]=Dec2BCD(dt.Day);
+    this->buf[MONTH_ADDR]=Dec2BCD(dt.Month);
+    this->buf[YEAR_ADDR]=Dec2BCD(dt.Year - 2000);
+	this->buf[WEEK_ADDR]=0;
+	return this->RegWrite(SEC_ADDR,7);	
+}

Drivers/I2C/RX8025T/RX8025T.h

@@ -0,0 +1,29 @@
+#ifndef _RX8025T_H
+#define _RX8025T_H
+
+#include "Kernel\Sys.h"
+#include "I2C.h"
+#include "Core\DateTime.h"
+
+class RX8025T
+{
+	public:
+		SoftI2C* IIC; // I2C通信口
+		byte Address; // 设备地址
+	public:
+		RX8025T(byte devaddr = 0xA0, int wnus = 0);
+		void Init();
+		byte CheckDevice(void);//
+		byte Output1s_Start(void);
+		byte Output1s_Stop(void);
+		int LoadTime(DateTime &dt);
+		int SaveTime(DateTime &dt);		
+	private:
+		int RegWrite(byte sadd, byte  len);
+		int RegRead(byte sadd, byte len);
+	private:
+		byte buf[20];
+		byte devaddr;//设备地址
+};
+
+#endif