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[STM32F7]

W5300调试UDP通信时，发送数据正常，接收数据丢失最高位

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chenwang1996|  楼主 | 2020-9-27 15:13 | 只看该作者 回帖奖励 |倒序浏览 |阅读模式
udp通信, W5300, 调试, unsigned, dc
W5300调试UDP通信时，发送数据正常，接收数据丢失最高位。STM32F767芯片接W5300,另一端接PC网络调试助手。采用8位数据模式。STM32发送0XFF或0XAA，PC网络调试助手能收到0XFF或0XAA,但是网络调试助手发送0XFF或0XAA,STM32从W5300的Sn_RX_FIFOR读出来是0X7F或0X2A。STM32程序如下：
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void LCD_Init(void)

{           

    GPIO_InitTypeDef GPIO_Initure;

        FMC_NORSRAM_TimingTypeDef FSMC_ReadWriteTim;

    FMC_NORSRAM_TimingTypeDef FSMC_WriteTim;





    LCD_MPU_Config();                       //ʹÄÜMPU±£»¤LCDÇøÓò

    SRAM_Handler.Instance=FMC_NORSRAM_DEVICE;       

    SRAM_Handler.Extended=FMC_NORSRAM_EXTENDED_DEVICE;       

    

    SRAM_Handler.Init.NSBank=FMC_NORSRAM_BANK3;     //ʹÓÃNE1

    SRAM_Handler.Init.DataAddressMux=FMC_DATA_ADDRESS_MUX_DISABLE; //²»¸´ÓÃÊý¾ÝÏß

    SRAM_Handler.Init.MemoryType=FMC_MEMORY_TYPE_SRAM;   //SRAM

    SRAM_Handler.Init.MemoryDataWidth=FMC_NORSRAM_MEM_BUS_WIDTH_8; //16λÊý¾Ý¿í¶È

    SRAM_Handler.Init.BurstAccessMode=FMC_BURST_ACCESS_MODE_DISABLE; //ÊÇ·ñʹÄÜÍ»·¢·ÃÎÊ,½ö¶Ôͬ²½Í»·¢´æ´¢Æ÷ÓÐЧ,´Ë´¦Î´Óõ½

    SRAM_Handler.Init.WaitSignalPolarity=FMC_WAIT_SIGNAL_POLARITY_LOW;//µÈ´ýÐźŵļ«ÐÔ,½öÔÚÍ»·¢Ä£Ê½·ÃÎÊÏÂÓÐÓÃ

    SRAM_Handler.Init.WaitSignalActive=FMC_WAIT_TIMING_DURING_WS;//FMC_WAIT_TIMING_BEFORE_WS;   //´æ´¢Æ÷ÊÇÔڵȴýÖÜÆÚ֮ǰµÄÒ»¸öʱÖÓÖÜÆÚ»¹ÊǵȴýÖÜÆÚÆÚ¼äʹÄÜNWAIT

    SRAM_Handler.Init.WriteOperation=FMC_WRITE_OPERATION_ENABLE;    //´æ´¢Æ÷дʹÄÜ

    SRAM_Handler.Init.WaitSignal=FMC_WAIT_SIGNAL_DISABLE;           //µÈ´ýʹÄÜλ,´Ë´¦Î´Óõ½

    SRAM_Handler.Init.ExtendedMode=FMC_EXTENDED_MODE_ENABLE;        //¶ÁдʹÓò»Í¬µÄʱÐò

    SRAM_Handler.Init.AsynchronousWait=FMC_ASYNCHRONOUS_WAIT_DISABLE;//ÊÇ·ñʹÄÜͬ²½´«ÊäģʽϵĵȴýÐźÅ,´Ë´¦Î´Óõ½

    SRAM_Handler.Init.WriteBurst=FMC_WRITE_BURST_DISABLE;           //½ûֹͻ·¢Ð´

    SRAM_Handler.Init.ContinuousClock=FMC_CONTINUOUS_CLOCK_SYNC_ASYNC;



//          FSMC_ReadWriteTim.AddressSetupTime=0x15;    //µØÖ·½¨Á¢Ê±¼ä(ADDSET)Ϊ17¸öHCLK 1/216M=4.6ns*17=78ns//01

//    FSMC_ReadWriteTim.AddressHoldTime=0x01;

//    FSMC_ReadWriteTim.DataSetupTime=0x15;       //Êý¾Ý±£´æʱ¼ä(DATAST)Ϊ85¸öHCLK        =4.6*85=391ns

          FSMC_ReadWriteTim.AddressSetupTime=0x15;    //µØÖ·½¨Á¢Ê±¼ä(ADDSET)Ϊ17¸öHCLK 1/216M=4.6ns*17=78ns//01

    FSMC_ReadWriteTim.AddressHoldTime=0x01;

    FSMC_ReadWriteTim.DataSetupTime=0x15;       //Êý¾Ý±£´æʱ¼ä(DATAST)Ϊ85¸öHCLK        =4.6*85=391ns

//         FSMC_ReadWriteTim.BusTurnAroundDuration = 0;

//          FSMC_ReadWriteTim.CLKDivision = 0;

//          FSMC_ReadWriteTim.DataLatency = 0;

        

    FSMC_ReadWriteTim.AccessMode=FMC_ACCESS_MODE_B; //ģʽA

    //FSMCдʱÐò¿ØÖƼĴæÆ÷

    FSMC_WriteTim.AddressSetupTime=0x15;        //µØÖ·½¨Á¢Ê±¼ä(ADDSET)Ϊ21¸öHCLK=96ns

    FSMC_WriteTim.AddressHoldTime=0x00;

    FSMC_WriteTim.DataSetupTime=0x55;           //Êý¾Ý±£´æʱ¼ä(DATAST)Ϊ4.6ns*21¸öHCLK=96ns//10

    FSMC_WriteTim.AccessMode=FMC_ACCESS_MODE_A;     //ģʽA

        HAL_SRAM_Init(&SRAM_Handler,&FSMC_ReadWriteTim,&FSMC_WriteTim);        

         delay_ms(50); // delay 50 ms 

}  

void W5300_Config(void)

{

        unsigned char *ptr;

//        unsigned char *ptr;

   HAL_GPIO_WritePin(GPIOB,W5300_RST,GPIO_PIN_SET);        //PB1ÖÃ0

        //GPIO_SetBits(GPIOE, W5300_RST);

        /* Wait Ethernet Link */

        //while(HAL_GPIO_ReadPin(GPIOG, L_LINK)==1);

  delay_ms(10); // delay 50 ms

/*        ptr=(unsigned char*)MR;

        ip=*ptr;

        */

        UDP_OK=0;

        ptr=(unsigned char*)MR1;

        *ptr=0x80;

         delay_ms(15);



        ptr=(unsigned char*)MR1;

        *ptr=0x00;

        ptr=(unsigned char*)MR;

        *ptr=0x38;

//         delay_ms(10);

//        ptr=(unsigned char*)MR1;

//        ip=*ptr;

  delay_ms(10);

 //ÅäÖÃÖжÏ

         ptr=(unsigned char*)IR;

        *ptr=0x00;

        ptr=(unsigned char*)IR1;

        *ptr=0x00;

        /* Set Gateway address as "192.168.0.1" */

        ptr=(unsigned char*)GAR;                                                /* Set Gateway IP */

  *ptr=0xc0;

        ptr=(unsigned char*)GAR1;                                                /* #define GAR2            (GAR + 2)      Set Gateway IP */

        *ptr=0xa8;

        ptr=(unsigned char*)GAR2;                                                /* Set Gateway IP */

  *ptr=0x01;

        ptr=(unsigned char*)GAR3;                                                /* #define GAR2            (GAR + 2)      Set Gateway IP */

        *ptr=0x01;



        /* Set IP address as "192.168.0.20" */

        ptr=(unsigned char*)SIPR;

        *ptr=0xc0;

        ptr=(unsigned char*)SIPR1;

        *ptr=0xa8;

        ptr=(unsigned char*)SIPR2;

        *ptr=0x01;

        ptr=(unsigned char*)SIPR3;

        *ptr=0x14;

        /* Set Subnet mask as "255.255.255.0" */

        ptr=(unsigned char*)SUBR;

        /**ptr++=0xffff;

        *ptr=0xff00;

        */

        *ptr=0xFF;

        ptr=(unsigned char*)SUBR1;

        *ptr=0xff;

        ptr=(unsigned char*)SUBR2;

        *ptr=0xff;

        ptr=(unsigned char*)SUBR3;

        *ptr=0x00;

        ptr=(unsigned char*)SUBR2;                                                /* Set Gateway IP */

        ip=*ptr;

        delay_ms(15);

        /* Set MAC address as "48 53 00 31 30 33"*/

        ptr=(unsigned char*)SHAR;

        *ptr=0x00;

        ptr=(unsigned char*)SHAR1;

        *ptr=0x08;

        ptr=(unsigned char*)SHAR2;

        *ptr=0xDC;

        ptr=(unsigned char*)SHAR3;

        *ptr=0x01;

        ptr=(unsigned char*)SHAR4;

        *ptr=0x02;

        ptr=(unsigned char*)SHAR4;

        *ptr=0x03;

        //ÉèÖÃÄÚ´æ´óС

                ptr=(unsigned char*)TMS01R;

         *ptr=0x04;

         ptr=(unsigned char*)TMSR1;

         *ptr=0x10;

          ptr=(unsigned char*)TMSR2;

         *ptr=0x01;

          ptr=(unsigned char*)TMSR3;

         *ptr=0x14;

          ptr=(unsigned char*)TMSR4;

         *ptr=0x00;

          ptr=(unsigned char*)TMSR5;

         *ptr=0x07;

          ptr=(unsigned char*)TMSR6;

         *ptr=0x0c;

          ptr=(unsigned char*)TMSR7;

         *ptr=0x0c;

         //

          ptr=(unsigned char*)RMS01R;

         *ptr=0x11;

                 ptr=(unsigned char*)RMSR1;

         *ptr=0x03;

                 ptr=(unsigned char*)RMSR2;

         *ptr=0x05;

                 ptr=(unsigned char*)RMSR3;

         *ptr=0x10;

                 ptr=(unsigned char*)RMSR4;

         *ptr=0x03;

                 ptr=(unsigned char*)RMSR5;

         *ptr=0x04;

                 ptr=(unsigned char*)RMSR6;

         *ptr=0x04;

                 ptr=(unsigned char*)RMSR7;

         *ptr=0x04;

        //ÉèÖÃÄÚ´æ

         ptr=(unsigned char*)MTYPER0;

        *ptr=0x01;

         ptr=(unsigned char*)MTYPER1;

        *ptr=0xff;

        /* Set interrupt mask */

                ptr=(unsigned char*)IMR;

        *ptr=IR_CONFLICT;

        ptr=(unsigned char*)IMR1;

        *ptr=0x01;

         delay_ms(10); // delay 50 ms

                 ptr=(unsigned char*)IMR1;                                        

     ip=*ptr;

                  delay_ms(10); // delay 50 ms

}



unsigned int Socket0_UDP(void)

{

        unsigned char *ptr;

        unsigned char i;



        /* Set Socket Port Number as 5000*/

/*        ptr=(unsigned short*)Sn_PORTR(0);

        *ptr=5000;*/

        ptr=(unsigned char*)Sn_PORTR(0);

  *ptr=0x13;

        ptr=(unsigned char*)Sn_PORTR1(0);

        *ptr=0x88;//0x1388

        /* Set Destination IP  as "192.168.0.30" */



        ptr=(unsigned char*)Sn_DIPR(0);

  *ptr=0xc0;

        ptr=(unsigned char*)Sn_DIPR1(0);

        *ptr=0xA8;

        ptr=(unsigned char*)Sn_DIPR2(0);

        *ptr=0x01;

        ptr=(unsigned char*)Sn_DIPR3(0);

        *ptr=0x16;

        

        

        //ÎïÀíµØÖ·

                ptr=(unsigned char*)Sn_DHAR(0);

        *ptr=0x28;

        ptr=(unsigned char*)Sn_DHAR1(0);

        *ptr=0xd2;

        ptr=(unsigned char*)Sn_DHAR2(0);

        *ptr=0x44;

        ptr=(unsigned char*)Sn_DHAR3(0);

        *ptr=0x3e;

        ptr=(unsigned char*)Sn_DHAR4(0);

        *ptr=0x77;

        ptr=(unsigned char*)Sn_DHAR5(0);

        *ptr=0x3a;

        

        

        

        /* Set Destination Port number as 5000 */

        /*ptr=(unsigned short*)Sn_DPORTR(0);

        *ptr=5000;*/

        ptr=(unsigned char*)Sn_DPORTR(0);

  *ptr=0x13;

        ptr=(unsigned char*)Sn_DPORTR(0);

        *ptr=0x88;//0x1388

   ptr=(unsigned char*)Sn_MSSR(0);

        *ptr=0x05;

         ptr=(unsigned char*)Sn_MSSR1(0);

        *ptr=0xb4;//0x5b4

        /* Set Socket0 in UDP mode */

        ptr=(unsigned char*)Sn_MR1(0);

        *ptr=0x02;//



//                ptr=(unsigned char*)Sn_CR1(0);

//                *ptr=Sn_CR_CLOSE;

//        delay_ms(10);

        /* Open Socket0 */

        ptr=(unsigned char*)Sn_CR1(0);

        *ptr=Sn_CR_OPEN;

        

        delay_ms(10);

        ptr=(unsigned char*)Sn_SSR1(0);

        i=*ptr;

        ip=i;

        if((i&0xff)!=SOCK_UDP)                /* If failed to open Socket0, close Socket0 and reurn false */

        {

                ptr=(unsigned char*)Sn_CR1(0);

                *ptr=Sn_CR_CLOSE;

                delay_ms(10);

                return FALSE;

        }

        S0_SendOK=1;

        //GPIO_ResetBits(GPIOF, D_OUTPUT2);                /* If UDP Ready, light LED2*/

        return TRUE;

}



/* Read data from RX buffer and dump them to S_buffer */

unsigned char S0_udprx_process(void)

{

        unsigned char*ptr;

        unsigned short rx_size;

        unsigned int i,j;





        ptr=(unsigned char*)Sn_RX_RSR0(0);

        ip=*ptr;

        ptr=(unsigned char*)Sn_RX_RSR1(0);

        ip=*ptr;

        ptr=(unsigned char*)Sn_RX_RSR2(0);

        ip=*ptr;

        ptr=(unsigned char*)Sn_RX_RSR3(0);

        ip=*ptr;

 //ip=rx_size;

                 delay_us(10);

        if(ip==0)                 

                return 0;

//ip

        ptr=(unsigned char*)Sn_RX_FIFOR(0);

        IP_Buffer[0]=*ptr;

        ptr=(unsigned char*)Sn_RX_FIFOR1(0);

        IP_Buffer[1]=*ptr;

         delay_us(30);

//        rx_size=S_Buffer[0]<<8+S_Buffer[1];

        ptr=(unsigned char*)Sn_RX_FIFOR(0);

        IP_Buffer[2]=*ptr;

        ptr=(unsigned char*)Sn_RX_FIFOR1(0);

        IP_Buffer[3]=*ptr;

         delay_us(30);

        //¶Ë¿Ú

        ptr=(unsigned char*)Sn_RX_FIFOR(0);

        IP_Buffer[4]=*ptr;

        ptr=(unsigned char*)Sn_RX_FIFOR1(0);

        IP_Buffer[5]=*ptr;

         delay_us(30);

  //Êý¾Ý

                ptr=(unsigned char*)Sn_RX_FIFOR(0);

        IP_Buffer[6]=*ptr;

        ptr=(unsigned char*)Sn_RX_FIFOR1(0);

        IP_Buffer[7]=*ptr;

         delay_us(30);

         //Êý¾Ý´¦Àí

        i=(IP_Buffer[6]<<8)+IP_Buffer[7];

        if(i%2!=0) i++; 

        //i=i/2;

  for(j=0;j<i;j++)

        {

        ptr=(unsigned char*)Sn_RX_FIFOR(0);

        R_Buffer[j]=*ptr;

                j++;

        ptr=(unsigned char*)Sn_RX_FIFOR1(0);

        R_Buffer[j]=*ptr;

         delay_us(30);

        }

        ptr=(unsigned char*)Sn_CR(0);                /* Set RECV command */

        *ptr=Sn_CR_RECV;



        return i;

}

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沙发
chenwang1996|  楼主 | 2020-9-27 15:39 | 只看该作者
大神们，帮我看看是哪里的问题，STM32从W5300读其他寄存器时，也能正常读出正确的数据，比如读子网掩码寄存器SUBR2，也能读出0XFF。读Sn_RX_FIFOR就丢失最高位。

        ptr=(unsigned char*)SUBR2;
        *ptr=0xff;
        ptr=(unsigned char*)SUBR3;
        *ptr=0x00;
        ptr=(unsigned char*)SUBR2;                                                /* Set Gateway IP */
        ip=*ptr;
        delay_ms(15);

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板凳
观海| | 2020-10-12 08:29 | 只看该作者
通讯速度是多少啊

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地板
guanjiaer| | 2020-10-12 08:29 | 只看该作者
楼主找到问题了吗

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5楼
chenwang1996|  楼主 | 2020-10-12 16:07 | 只看该作者
guanjiaer 发表于 2020-10-12 08:29
楼主找到问题了吗

找到了，FMC_D7口被其他电路影响，电平被强制拉低了

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6楼
chenwang1996|  楼主 | 2020-10-12 16:19 | 只看该作者
观海 发表于 2020-10-12 08:29
通讯速度是多少啊

通讯速度不清楚，但是问题已解决，电路问题，FMC_D7口接到了另一个模块上，另一个模块没关闭，导致FMC_D7无法拉高。

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