/*********************************************************************
*    项目名称:MG82F6D64-DEMO
*			测试板使用 MG82F6D64 LQFP64_V10 EV Board (TH210A)
*			CpuCLK=12MHz, SysCLK=12MHz
*	功能描述：
*			串口0，工作在模式4 (即SPI主机模式)
*			SPICLK <-->TXD	P31
*			MOSI	<-->RXD  P30
*			MISO	<-->S0MI P16
*	注意事项：
*
*    建立时间:
*    修改日志:
*    
*********************************************************************/
#define _MAIN_C

#include <Intrins.h>
#include <Absacc.h>

#include <Stdio.h>  // for printf

#include ".\include\REG_MG82F6D64.H"
#include ".\include\Type.h"
#include ".\include\API_Macro_MG82F6D64.H"
#include ".\include\API_Uart_BRGRL_MG82F6D64.H"

/*************************************************
*定义系统时钟SysClk (MAX.50MHz)
*可选: 
*	11059200,12000000,
*	22118400,24000000,
*	29491200,32000000,
*	33170000,36000000,
*	44236800,48000000
*************************************************/
#define MCU_SYSCLK		12000000
/*************************************************/
/*************************************************
*定义CPU时钟 CpuClk (MAX.36MHz)
*	1) CpuCLK=SysCLK
*	2) CpuClk=SysClk/2
*************************************************/
#define MCU_CPUCLK		(MCU_SYSCLK)
//#define MCU_CPUCLK		(MCU_SYSCLK/2)

#define TIMER_1T_1ms_TH	((65536-(u16)(float)(1000*((float)(MCU_SYSCLK)/(float)(1000000)))) /256) 			
#define TIMER_1T_1ms_TL	((65536-(u16)(float)(1000*((float)(MCU_SYSCLK)/(float)(1000000)))) %256)

#define TIMER_12T_1ms_TH	((65536-(u16)(float)(1000*((float)(MCU_SYSCLK)/(float)(12000000)))) /256) 			
#define TIMER_12T_1ms_TL	((65536-(u16)(float)(1000*((float)(MCU_SYSCLK)/(float)(12000000)))) %256)


#define LED_G_0		P55
#define LED_R		P56
#define LED_G_1		P57

#define SPI_NSS		P33

sfr UARTSPICLK		= 0xBB;

// 选择SPICLK 初始电平
#define SPICLK_LOW	0	// SPICLK  初始为低电平
#define SPICLK_HIGH	1	// SPICLK  初始为低电平
#define SPI_CPOL  SPICLK_HIGH	

// 选择数据传送顺序
#define LSB	0	// 低位在先
#define MSB	1	// 高位在先
#define SPI_DORD	MSB

// 选择SPI 的传送速度
#define SPI_CLK_SYSCLK_4	0	// SYSCLK/4
#define SPI_CLK_SYSCLK_12	1	// SYSCLK/12
#define SPI_CLOCK	SPI_CLK_SYSCLK_4

/*************************************************
*函数名称:     void DelayXus(u16 xUs)
*功能描述:   	延时程序，单位为us
*输入参数:     u8 Us -> *1us  (1~255)
*返回参数:     
*************************************************/
void DelayXus(u8 xUs)
{
	while(xUs!=0)
	{
#if (MCU_CPUCLK>=11059200)
		_nop_();
#endif
#if (MCU_CPUCLK>=14745600)
		_nop_();
		_nop_();
		_nop_();
		_nop_();
#endif
#if (MCU_CPUCLK>=16000000)
		_nop_();
#endif

#if (MCU_CPUCLK>=22118400)
		_nop_();
		_nop_();
		_nop_();
		_nop_();
		_nop_();
		_nop_();
#endif
#if (MCU_CPUCLK>=24000000)
		_nop_();
		_nop_();
#endif		
#if (MCU_CPUCLK>=29491200)
		_nop_();
		_nop_();
		_nop_();
		_nop_();
		_nop_();
		_nop_();
#endif
#if (MCU_CPUCLK>=32000000)
		_nop_();
		_nop_();
#endif

		xUs--;
	}
}

/*************************************************
*函数名称:     void DelayXms(u16 xMs)
*功能描述:     延时程序，单位为ms
*输入参数:     u16 xMs -> *1ms  (1~65535)
*返回参数:     
*************************************************/
void DelayXms(u16 xMs)
{
	while(xMs!=0)
	{
		CLRWDT();
		DelayXus(200);
		DelayXus(200);
		DelayXus(200);
		DelayXus(200);
		DelayXus(200);
		xMs--;
		
	}
}

/***********************************************************************************
*函数名称:   u8 Uart0SPITransceiver(u8 ToSend)
*功能描述:   串口SPI主机发送函数
*输入参数:   u8 ToSend
*返回参数:     
*************************************************************************************/
u8 Uart0SPITransceiver(u8 ToSend)
{
	S0BUF=ToSend;
	while(TI0==0);
	TI0=0;
	return S0BUF;
}

/***********************************************************************************
*函数名称:   void InitUart0_SPI_Master(void)
*功能描述:   Uart0初始化 SPI Master
*输入参数:   
*返回参数:     
*************************************************************************************/
void InitUart0_SPI_Master(void)
{
	P31=1;
	UART0_SetModeSPIMaster();			// 设置串口SPI主机模式
	PORT_SetS0MIS1MIS2MIS3MI_P57P67P66P65();					// 设置串口SPI的MISO引脚为P57
	UART0_SetRxTxP30P31();				// 设置串口SPI的RX（MOSI）,TX(SPI_CLK)引脚为P30,P31
#if (SPI_CLOCK == SPI_CLK_SYSCLK_4)
	UART0_SetSPIClock_SYSCLKDiv4();		// 设置SPI时钟为系统时钟的4分频
#else
	UART0_SetSPIClock_SYSCLKDiv12();	// 设置SPI时钟为系统时钟的12分频
#endif

#if (SPI_DORD==MSB)
	UART0_SetDataMSB();
#else
	UART0_SetDataLSB();
#endif

#if (SPI_CPOL==SPICLK_LOW)									
	UARTSPICLK = 0x21;					// SPICLK  初始为低电平
#endif

	
}

/***********************************************************************************
*函数名称:   void InitPort(void)
*功能描述:   IO配置
*输入参数:   
*返回参数:     
*************************************************************************************/
void InitPort(void)
{
	PORT_SetP5PushPull(BIT5|BIT6|BIT7);					// 设置P55,P56,P57为推挽输出(LED)
	PORT_SetP3QuasiBi(BIT0|BIT1);						// 设置P30,P31为准双向口
	PORT_SetP1OpenDrainPu(BIT6);						// 设置P16,做MISO
	PORT_SetP3PushPull(BIT3);							// 设置P33为推挽输出(NSS)
}

/***********************************************************************************
*函数名称:   void InitClock(void)
*功能描述:   时钟初始化	
*输入参数:   
*返回参数:     
*************************************************************************************/
void InitClock(void)
{
#if (MCU_SYSCLK==11059200)
#if (MCU_CPUCLK==MCU_SYSCLK)
	// SysClk=11.0592MHz CpuClk=11.0592MHz
	CLK_SetCKCON0(IHRCO_110592MHz|CPUCLK_SYSCLK_DIV_1|SYSCLK_MCKDO_DIV_1);
	
#else
	// SysClk=11.0592MHz CpuClk=5.5296MHz
	CLK_SetCKCON0(IHRCO_110592MHz|CPUCLK_SYSCLK_DIV_2|SYSCLK_MCKDO_DIV_1);
#endif
#endif

#if (MCU_SYSCLK==12000000)
#if (MCU_CPUCLK==MCU_SYSCLK)
	// SysClk=12MHz CpuClk=12MHz
	CLK_SetCKCON0(IHRCO_12MHz|CPUCLK_SYSCLK_DIV_1|SYSCLK_MCKDO_DIV_1);
	
#else
	// SysClk=12MHz CpuClk=6MHz
	CLK_SetCKCON0(IHRCO_12MHz|CPUCLK_SYSCLK_DIV_2|SYSCLK_MCKDO_DIV_1);
#endif
#endif

#if (MCU_SYSCLK==22118400)
#if (MCU_CPUCLK==MCU_SYSCLK)
	// SysClk=22.1184MHz CpuClk=22.1184MHz
	CLK_SetCKCON0(IHRCO_110592MHz|CPUCLK_SYSCLK_DIV_1|SYSCLK_MCKDO_DIV_1|ENABLE_CKM|CKM_OSCIN_DIV_2);
	DelayXus(100);
	// IHRCO, MCK=CKMIx4, OSCin=IHRCO
	CLK_SetCKCON2(ENABLE_IHRCO|MCK_CKMI_X4|OSCIn_IHRCO);
#else
	// SysClk=22.1184MHz CpuClk=11.0592MHz
	CLK_SetCKCON0(IHRCO_110592MHz|CPUCLK_SYSCLK_DIV_2|SYSCLK_MCKDO_DIV_1|ENABLE_CKM|CKM_OSCIN_DIV_2);
	DelayXus(100);
	// IHRCO, MCK=CKMIx4, OSCin=IHRCO
	CLK_SetCKCON2(ENABLE_IHRCO|MCK_CKMI_X4|OSCIn_IHRCO);
#endif
#endif

#if (MCU_SYSCLK==24000000)
#if (MCU_CPUCLK==MCU_SYSCLK)
	// SysClk=24MHz CpuClk=24MHz
	CLK_SetCKCON0(IHRCO_12MHz|CPUCLK_SYSCLK_DIV_1|SYSCLK_MCKDO_DIV_1|ENABLE_CKM|CKM_OSCIN_DIV_2);
	DelayXus(100);
	// IHRCO, MCK=CKMIx4, OSCin=IHRCO
	CLK_SetCKCON2(ENABLE_IHRCO|MCK_CKMI_X4|OSCIn_IHRCO);
#else
	// SysClk=24MHz CpuClk=12MHz
	CLK_SetCKCON0(IHRCO_12MHz|CPUCLK_SYSCLK_DIV_2|SYSCLK_MCKDO_DIV_1|ENABLE_CKM|CKM_OSCIN_DIV_2);
	DelayXus(100);
	// IHRCO, MCK=CKMIx4, OSCin=IHRCO
	CLK_SetCKCON2(ENABLE_IHRCO|MCK_CKMI_X4|OSCIn_IHRCO);
#endif
#endif

#if (MCU_SYSCLK==29491200)
#if (MCU_CPUCLK==MCU_SYSCLK)
	// Cpuclk high speed
	CLK_SetCpuCLK_HighSpeed();
	// SysClk=29.491200MHz CpuClk=29.491200MHz
	CLK_SetCKCON0(IHRCO_110592MHz|CPUCLK_SYSCLK_DIV_1|SYSCLK_MCKDO_DIV_1|ENABLE_CKM|CKM_OSCIN_DIV_2);
	DelayXus(100);
	// IHRCO, MCK=CKMIx5.33, OSCin=IHRCO
	CLK_SetCKCON2(ENABLE_IHRCO|MCK_CKMI_X533|OSCIn_IHRCO);
#else
	// SysClk=29.491200MHz CpuClk=14.7456MHz
	CLK_SetCKCON0(IHRCO_110592MHz|CPUCLK_SYSCLK_DIV_2|SYSCLK_MCKDO_DIV_1|ENABLE_CKM|CKM_OSCIN_DIV_2);
	DelayXus(100);
	// IHRCO, MCK=CKMIx5.33, OSCin=IHRCO
	CLK_SetCKCON2(ENABLE_IHRCO|MCK_CKMI_X533|OSCIn_IHRCO);
#endif
#endif

#if (MCU_SYSCLK==32000000)
#if (MCU_CPUCLK==MCU_SYSCLK)
	// Cpuclk high speed
	CLK_SetCpuCLK_HighSpeed();
	// SysClk=32MHz CpuClk=32MHz
	CLK_SetCKCON0(IHRCO_12MHz|CPUCLK_SYSCLK_DIV_1|SYSCLK_MCKDO_DIV_1|ENABLE_CKM|CKM_OSCIN_DIV_2);
	DelayXus(100);
	// IHRCO, MCK=CKMIx5.33, OSCin=IHRCO
	CLK_SetCKCON2(ENABLE_IHRCO|MCK_CKMI_X533|OSCIn_IHRCO);
#else
	// SysClk=32MHz CpuClk=16MHz
	CLK_SetCKCON0(IHRCO_12MHz|CPUCLK_SYSCLK_DIV_2|SYSCLK_MCKDO_DIV_1|ENABLE_CKM|CKM_OSCIN_DIV_2);
	DelayXus(100);
	// IHRCO, MCK=CKMIx5.33, OSCin=IHRCO
	CLK_SetCKCON2(ENABLE_IHRCO|MCK_CKMI_X533|OSCIn_IHRCO);
#endif
#endif

#if (MCU_SYSCLK==36000000)
#if (MCU_CPUCLK==MCU_SYSCLK)
	// Cpuclk high speed
	CLK_SetCpuCLK_HighSpeed();
	// CKMIx6,x8,x12
	CLK_SetCKM_x6x8x12();	
	// SysClk=36MHz CpuClk=18MHz
	CLK_SetCKCON0(IHRCO_12MHz|CPUCLK_SYSCLK_DIV_1|SYSCLK_MCKDO_DIV_1|ENABLE_CKM|CKM_OSCIN_DIV_2);
	DelayXus(100);
	// IHRCO, MCK=CKMIx6, OSCin=IHRCO
	CLK_SetCKCON2(ENABLE_IHRCO|MCK_CKMI_X4_X6|OSCIn_IHRCO);
#else
	// CKMIx6,x8,x12
	CLK_SetCKM_x6x8x12();	
	// SysClk=36MHz CpuClk=18MHz
	CLK_SetCKCON0(IHRCO_12MHz|CPUCLK_SYSCLK_DIV_2|SYSCLK_MCKDO_DIV_1|ENABLE_CKM|CKM_OSCIN_DIV_2);
	DelayXus(100);
	// IHRCO, MCK=CKMIx6, OSCin=IHRCO
	CLK_SetCKCON2(ENABLE_IHRCO|MCK_CKMI_X4_X6|OSCIn_IHRCO);
#endif
#endif


#if (MCU_SYSCLK==44236800)
	// SysClk=44.2368MHz CpuClk=22.1184MHz
	CLK_SetCKCON0(IHRCO_110592MHz|CPUCLK_SYSCLK_DIV_1|SYSCLK_MCKDO_DIV_1|ENABLE_CKM|CKM_OSCIN_DIV_2);
	DelayXus(100);
	// IHRCO, MCK=CKMIx8, OSCin=IHRCO
	CLK_SetCKCON2(ENABLE_IHRCO|MCK_CKMI_X8|OSCIn_IHRCO);
#endif

#if (MCU_SYSCLK==48000000)
	// SysClk=48MHz CpuClk=24MHz
	CLK_SetCKCON0(IHRCO_12MHz|CPUCLK_SYSCLK_DIV_2|SYSCLK_MCKDO_DIV_1|ENABLE_CKM|CKM_OSCIN_DIV_2);
	DelayXus(100);
	// IHRCO, MCK=CKMIx8, OSCin=IHRCO
	CLK_SetCKCON2(ENABLE_IHRCO|MCK_CKMI_X8|OSCIn_IHRCO);
#endif

	// P60 输出 MCK/4
	//CLK_P60OC_MCKDiv4();
}

/***********************************************************************************
*函数名称:   void InitSystem(void)
*功能描述:   系统初始化
*输入参数:   
*返回参数:     
*************************************************************************************/
void InitSystem(void)
{
	InitPort();
	InitClock();
	InitUart0_SPI_Master();
}

void main()
{
	InitSystem();
	LED_G_1=0;LED_R=0;
	DelayXms(1000);
	LED_G_1=1;LED_R=1;	
	while(1)
	{
		DelayXms(100);
		LED_G_0 = !LED_G_0;	
		
		SPI_NSS=0;
		Uart0SPITransceiver(0x05);	
		SPI_NSS=1;
	}

}


