main.c

YL9200开发板的测试代码,详细请下载后细看

	AT91F_TWI_Read( AT91C_BASE_TWI , 0x0 , data , EEP_RW_CHK_CNT );

	for ( loop = 0; loop < EEP_RW_CHK_CNT; loop++ )
		if ( data[loop] != loop )
			break;

	printf( "Check data %s\n" , ( loop == EEP_RW_CHK_CNT ) ? "success" : "fail" );

#endif	/* IIC_SUPPORT */
}

static void ShowLed( U32 led )
{
	int set = 0, clr = 0;

	if ( led & 1 )
		clr |= 1 << 8;
	else
		set |= 1 << 8;

	if ( led & 2 )
		clr |= 1 << 15;
	else
		set |= 1 << 15;

	if ( led & 4 )
		clr |= 1 << 16;
	else
		set |= 1 << 16;

	if ( led & 8 )
		clr |= 1 << 17;
	else
		set |= 1 << 17;

	AT91F_PIO_SetOutput( AT91C_BASE_PIOB , set );
	AT91F_PIO_ClearOutput( AT91C_BASE_PIOB , clr );
}

static void Buzzer( int freq , int ms )
{
	int val;
	AT91PS_TC pTC = AT91C_BASE_TC2;

	val = ( AT91F_PMC_GetMasterClock( AT91C_BASE_PMC , AT91C_BASE_CKGR , 32768 ) >> 3 ) / freq;
	if ( val > 65535 )
		val = 65535;
	if ( val < 2 )
		val = 2;
	pTC->TC_RB = val >> 1;
	pTC->TC_RC = val;
	pTC->TC_CCR = 5;	//enable timer-counter and trig it

	AT91F_PIO_CfgPeriph( AT91C_BASE_PIOA ,	// PIO controller base address
		0 ,					// Peripheral A
		AT91C_PA22_TIOB2 );	// Peripheral B
	delay( ms );
	AT91F_PIO_CfgOutput( AT91C_BASE_PIOA , AT91C_PIO_PA22 );
	//AT91F_PIO_SetOutput(AT91C_BASE_PIOA, AT91C_PIO_PA22);
	AT91F_PIO_ClearOutput( AT91C_BASE_PIOA , AT91C_PIO_PA22 );
}

void ComDownload( U32 a1 , U32 a2 );
void Program_eep( U32 addr , U32 size );
void WrFileToNF( U32 FileAddr , U32 FileSize );
void RdFileFrNF( U32 FileAddr , U32 FileSize );
//void XmodemDownload( U32 a1 , U32 a2 );
//void TestNandFlash(U32 a1, U32 a2);
void EraseNandPart( U32 a1 , U32 a2 );
void RunProgFrNor( U32 addr , U32 size );
//void tftp_main( U32 addr , U32 dummy );
//void Test_ADS7843( U32 m , U32 n ) ;
void Test_MCP2510( U32 m , U32 n ) ;
//void SD_MMC_Test(U32 a1,U32 a2);



static struct
{
	void ( *FuncAddr )( U32 , U32 );
	char* str;
} Functions[] =
{
	//{ComDownload, "Download File By Uart(DNW)"}, 
	//{tftp_main, "Download File By Tftp"},
	//{XmodemDownload, "Download File By Xmodem"}, 
	//{Program_eep, "Write File To IIC Rom"},
	//{WrFileToNF, "Write File To Nand Flash"}, 
	//{RdFileFrNF, "Run Pragram From Nand Flash"},
	//{EraseNandPart, "Erase Nand Flash Partition"}, 
	//{WrFileToNor, "Write File To Nor Flash"},
	//{RunProgFrNor, "Run Program From Nor Flash"},
	//{test_s1d13506,"Test VGA"},
	{Test_SED1356_LCD_640_480,"Test LCD 640x480"},
	{Test_SED1356_VGA_640_480,"Test VGA 640x480"},
	{Test_SED1356_LCD_240_320,"Test LCD 240x320"},
	//{TestNandFlash, "Test nand flash"},
	//{Test_ADS7843, "Test Touchpanel( ADS7843 )"}, 
	{Test_MCP2510, "Test CAN BUS( MCP2510 )"}, 
	{TestRs485,"Test 485"},
	//{SD_MMC_Test,"Test SD or MMC Card"},
	{0, 0}
};

//*----------------------------------------------------------------------------
//* \fn    main
//* \brief 
//* 
//*----------------------------------------------------------------------------
int main( void )
{
	AT91PS_EMAC pEmac = AT91C_BASE_EMAC;

	AT91F_RTC_InterruptDisable( AT91C_BASE_RTC , 0x1f );
	AT91F_ST_DisableIt( AT91C_BASE_ST , 0xf );

	AT91C_BASE_ST->ST_PIMR = 328;	// 328/32768 S
	//	*AT91C_PMC_IDR = 0xf0f;	//disabled in InitSDRAM(init.c)
	//	printf("\nST_PIMR = 0x%08x\n", AT91C_BASE_ST->ST_PIMR);
	//	AT91F_ST_EnableIt(AT91C_BASE_ST, AT91C_ST_PITS);

	//设置网口MAC地址,先使能EMAC时钟,启动linux前要设置好MAC地址.
	AT91F_EMAC_CfgPMC();
	pEmac->EMAC_SA1L = ( ( int ) OurEmacAddr[2] << 24 ) |
		( ( int ) OurEmacAddr[3] << 16 ) |
		( ( int ) OurEmacAddr[4] << 8 ) |
		OurEmacAddr[5];
	pEmac->EMAC_SA1H = ( ( int ) OurEmacAddr[0] << 8 ) | OurEmacAddr[1];

	//when set an irq handler, the irq will be disabled in AT91F_AIC_ConfigureIt,
	//so enable it after AT91F_AIC_ConfigureIt!!!
	AT91F_AIC_ConfigureIt( AT91C_BASE_AIC ,							// AIC base address
		AT91C_ID_SYS ,							// System peripheral ID
		AT91C_AIC_PRIOR_HIGHEST ,				// Max priority
		AT91C_AIC_SRCTYPE_INT_LEVEL_SENSITIVE ,	// Level sensitive
		SysIrqHandler );						// 将设置处理函数地址填入AIC_SVC[AT91C_ID_SYS]
	//使能系统中断(包括ST,DBGU等)
	//AT91F_AIC_EnableIt( AT91C_BASE_AIC , AT91C_ID_SYS );

	MMU_EnableICache();

	downloadAddress = LINUX_KERNEL_ADDR;

	puts( "\n*********************************************\n" );
//	puts( "*                                           *\n" );
	puts( "*           BIOS For AT91RM9200             *\n" );
//	puts( "*                                           *\n" );
	puts( "*********************************************\n" );

	//get counter from CKGR_MCFR
	
	printf( "Processor Clock = %dHz, Master Clock = %dHz\n" ,
		AT91F_PMC_GetProcessorClock( AT91C_BASE_PMC , AT91C_BASE_CKGR , 32768 ) ,
		AT91F_PMC_GetMasterClock( AT91C_BASE_PMC , AT91C_BASE_CKGR , 32768 ) );

	InitPio();
	//InitTwi();
	InitNorFlash();
	InitNandFlash();
	ShowLed( 0xa );
	//TestRs485(0,0);
	//Buzzer( 2100 , 120 );
	//test_s1d13506();
	while ( 1 )
	{
		U16 i;
		int c;

		puts( "Select\n" );
		for ( i = 0; Functions[i].FuncAddr; i++ )
			printf( "%d : %s\n" , i , Functions[i].str );
		//putch( '\n' );
		//puts("Please input number to select:\n");	
		c = getch();
		if((c>='0')&&(c<('0'+i)))
			(*Functions[c-'0'].FuncAddr)(downloadAddress, downloadFileSize);
	}
}

static volatile U8* RxTmp;

void DBGU_Rx_Isr( void )
{
	//读完状态寄存器后才清掉中断源
	unsigned int csr = ( ( ( AT91PS_USART ) AT91C_BASE_DBGU )->US_CSR & ( ( AT91PS_USART ) AT91C_BASE_DBGU )->US_IMR );
	if ( csr & AT91C_US_RXRDY )
	{
		*RxTmp = AT91F_US_GetChar( ( AT91PS_USART ) AT91C_BASE_DBGU );
		//		putch(*RxTmp);
		RxTmp++;
	}
}

U32 WaitComDownload( void );

void ComDownload( U32 a1 , U32 a2 )
{
	U8 sel;

	puts( "Select\n1: Kernel\n2: initrd\n3: boot\nEsc: exit\n" );
	while ( 1 )
	{
		sel = getch();
		if ( sel == '1' )
		{
			downloadAddress = LINUX_KERNEL_ADDR;
			break;
		}
		if ( sel == '2' )
		{
			downloadAddress = INITRD_START;
			break;
		}
		if ( sel == '3' )
		{
			downloadAddress = BOOT_PORG_ADDR;
			break;
		}
		if ( sel == 0x1b )
			return;
	}

	if ( WaitComDownload() )
		return;

	if ( sel == '2' )
		return;

	if ( sel == '3' )
		start_kernel( downloadAddress , 0 );

	puts( "Do you want to run it ?\n1: boot without initrd\n2: boot wiht initrd\nEsc: exit\n" );
	while ( 1 )
	{
		char c = getch();
		if ( c == 0x1b )
			break;
		if ( ( c == '1' ) || ( c == '2' ) )
			start_kernel( downloadAddress , ( c == '1' ) ? 0 : INITRD_START );
	}
}
/*
void RunProg(U32 addr, U32 size)
{
	start_kernel(downloadAddress, 0);
}*/

void Program_eep( U32 addr , U32 size )
{
#ifdef	IIC_SUPPORT
	char* pdata;
	U32 eep_addr;
	int bytes, len;
	U32 loop;
	char data[EEP_RW_CHK_CNT];

	eep_addr = 0;
	pdata = ( char * ) addr;
	len = size;

	while ( len > 0 )
	{
		putchar( '.' );
		bytes = ( len > EEP_RW_CHK_CNT ) ? EEP_RW_CHK_CNT : len;
		AT91F_TWI_Write( AT91C_BASE_TWI , eep_addr , pdata , bytes );
		eep_addr += bytes;
		pdata += bytes;
		len -= bytes;				
		//for (loop=0; loop<30000; loop++);
		delay( 5 );
	}
	puts( "end\n" );

	eep_addr = 0;
	pdata = ( char * ) addr;
	len = size;

	while ( len )
	{
		bytes = ( len > EEP_RW_CHK_CNT ) ? EEP_RW_CHK_CNT : len;
		AT91F_TWI_Read( AT91C_BASE_TWI , eep_addr , data , bytes );
		for ( loop = 0; loop < bytes; loop++ )
			if ( data[loop] != pdata[loop] )
			{
				puts( "Program EEPROM fail!\n" );
				printf( "%x,%x\n" , loop , data[loop] );
				return;
			}
		eep_addr += bytes;
		pdata += bytes;
		len -= bytes;
	}
	puts( "Program EEPROM Success!\n" );
#endif	
}

U32 WaitComDownload( void )
{
	U32 size;
	U16 dnCS, CheckSum;
	U8* buf;

	puts( "Now downloadfile from uart0...\n" );
	buf = ( U8 * ) downloadAddress;
	RxTmp = buf - 4;

	//设置调试串口中断处理程序入口,使能属于调试串口的子中断
	DbguIrqHandler = DBGU_Rx_Isr;
	AT91F_US_EnableIt( ( AT91PS_USART ) AT91C_BASE_DBGU ,
		( AT91C_US_RXRDY | AT91C_US_OVRE | AT91C_US_FRAME | AT91C_US_PARE ) );

	while ( ( U32 ) RxTmp < ( U32 ) buf )
	{
		ShowLed( 15 );
		delay( 80 );
		ShowLed( 0 );
		delay( 80 );
	}							//接收文件长度,4 bytes
	size = *( U32 * ) ( buf - 4 );
	downloadFileSize = size - 6;
	printf( "Download File Size = %d\n" , size );

	while ( ( ( U32 ) RxTmp - ( U32 ) buf ) < ( size - 4 ) )
	{
		ShowLed( 15 );
		delay( 80 );
		ShowLed( 0 );
		delay( 80 );
	}

	AT91F_US_DisableIt( ( AT91PS_USART ) AT91C_BASE_DBGU ,
		( AT91C_US_RXRDY | AT91C_US_OVRE | AT91C_US_FRAME | AT91C_US_PARE ) );
	DbguIrqHandler = NULL;

	dnCS = ( buf[downloadFileSize + 1] << 8 ) | buf[downloadFileSize];
	CheckSum = 0;
	for ( size = 0; size < downloadFileSize; size++ )
		CheckSum += buf[size];
	if ( dnCS != CheckSum )
	{
		puts( "\nCheckSum error!\n" );
		return 1;
	}

	puts( "\nDwonload success\n" );
	return 0;
}