main.c

使用STR710的SPI接口访问外部EEPROM的例子程序.使用KEIL UV3编译.使用了MDK3.05操作系统.

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};
 
void IRQ_UART0_RXD( void ) __irq
{
	EIC->IPR |= ( 0x0001 << UART0_IRQChannel );
	ISR_RXD_read( 0 );

	//isr_evt_set( EVENT_UART0_RXD, t_environment );
}

 void Interrupts_init( void )
{
	
	EIC->IVR = ( u32 )IRQ_UART0_RXD;
	EIC->SIR[UART0_IRQChannel] = ( 8 | ( ( u32 )IRQ_UART0_RXD << 16 ) );	
	EIC_IRQChannelConfig( UART0_IRQChannel, ENABLE );
}

/***************************************************************************************/

void LED_A_flash (void) __task		   //for test
{
	//u8 i;
	//u16 page;
	u8 cmd;
	u8 array1[10]={0,0,0,0,0,0,0,0,0,0};
	u8 array2[10]={10,9,8,7,6,5,4,3,2,1};
	
	u8 RData[3160];
	memset(RData ,0, 3160);
	for(;;)
	{
		while ( query_rxdbuf_received_byte( UART_232 ) )	 //查询接收缓冲区收到的字节数
			  //   page=j;
		{
			cmd = read_byte_from_UARTbuf( UART_232, 0 ); // 从接收缓冲区读取一个字节，不丢弃
			Discard_nbyte_rxdbuf( UART_232, 1 ); //从接收缓冲区丢弃1个字节

			if(cmd == 0x50)		  //读写绝对地址数据
			{
				
				WriteDataToFlash(ADDR,array2,10);
				os_dly_wait(3);
				ReadDataFromFlash(ADDR, array1, 10);
				os_dly_wait(3);
				UART_send_mbytes( UART_232, array1, 10 );    //向RS232通道发送array1数据
			}
			else if(cmd == 0x60)	//读写相对地址数据
			{
				
				WriteMultiByteToMainMemory (9, 0, array2,10);
				os_dly_wait(3);
				ReadMultiByteFromMainMemory(9, 0, array1,10);
				os_dly_wait(3);
				UART_send_mbytes( UART_232, array1, 10 );    //向RS232通道发送array1数据
			}
			else if(cmd == 0x70)	 //页读写
			{
				WritePageData( CODE1_PAGE_NUMBER, Code1, CODE1_LENGTH );    //写code1数组
				os_dly_wait(100);
				ReadPageData( CODE1_PAGE_NUMBER, CODE1_LENGTH, RData);	   //读回数据
				os_dly_wait(100);
				UART_send_mbytes( UART_232, RData, CODE1_LENGTH );    //向RS232通道发送RData数据
			}
			
			else if(cmd == 0x80)   	 //页读写
			{
				WritePageData( CODE2_PAGE_NUMBER, Code2, CODE2_LENGTH );    //写code2数组
				os_dly_wait(300);
				ReadPageData( CODE2_PAGE_NUMBER, CODE2_LENGTH, RData);	   //读回数据
				os_dly_wait(300);
				UART_send_mbytes( UART_232, RData, CODE2_LENGTH );    //向RS232通道发送RData数据
				
			}
			
			else if(cmd == 0x90)     //刷除测试
			{
				ErasePage(2);
				os_dly_wait(10);
				ReadPageData( 2, 528, RData);	   //读回数据
				os_dly_wait(20);
				UART_send_mbytes( UART_232, RData, 528 );    //向RS232通道发送528个数据
			}
			else if(cmd == 0x40)     //
			{
				ReadPageData( 3, 528, RData);	   //读回数据
				os_dly_wait(20);
				UART_send_mbytes( UART_232, RData, 528 );    //向RS232通道发送528个数据
			}
			memset(RData ,0, 3160);
		}
	}
}

/*----------------------------------------------------------------------------
 *        Task 6 'init': Initialize
 *---------------------------------------------------------------------------*/
void init (void) __task 
{
   	u8 temp;
	RCCU_MCLKConfig(RCCU_DEFAULT);                    // MCLK = RCLK
	RCCU_FCLKConfig(RCCU_RCLK_2);                     // FCLK = RCLK/2
	RCCU_PCLKConfig(RCCU_RCLK_4);                     // PCLK = RCLK/4
	RCCU_PLL1Config(RCCU_PLL1_Mul_12, RCCU_Div_2);    // 48MHz PLL @ 16MHz XTAL

	while (RCCU_FlagStatus(RCCU_PLL1_LOCK) == RESET); // Wait for PLL to Lock
	RCCU_RCLKSourceConfig(RCCU_PLL1_Output);          // Select PLL for RCLK

	Interrupts_init();
	UART_open( UART_232, 115200, UART_PARITY_NO, UART_STOPBITS_1, UART_MODE_8D ); 
	//打开RS232通道，波特率为115200，无校验，1位停止位，8位数据位

 	initAT45DB161();
	temp = Detect_AT45DB();							  //
	if(temp == 0xB)									  //for test
	{
	 	t_LED_A_flash =  os_tsk_create(LED_A_flash,6);//
	}

	os_tsk_delete_self ();							  //
}

/*----------------------------------------------------------------------------
 *        Main: Initialize and start RTX Kernel
 *---------------------------------------------------------------------------*/
int main (void) 
{
	os_sys_init (init);                    /* Initialize RTX and start init    */
}

/*----------------------------------------------------------------------------
 * end of file
 *---------------------------------------------------------------------------*/