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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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 楼主| chenwang1996 发表于 2020-9-27 15:13 | 显示全部楼层 |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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  1. void LCD_Init(void)
    

  2. {           
    

  3.     GPIO_InitTypeDef GPIO_Initure;
    

  4.         FMC_NORSRAM_TimingTypeDef FSMC_ReadWriteTim;
    

  5.     FMC_NORSRAM_TimingTypeDef FSMC_WriteTim;
    


  6. 


  7. 

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

  9.     SRAM_Handler.Instance=FMC_NORSRAM_DEVICE;       
    

  10.     SRAM_Handler.Extended=FMC_NORSRAM_EXTENDED_DEVICE;       
    

  11.     
    

  12.     SRAM_Handler.Init.NSBank=FMC_NORSRAM_BANK3;     //ʹÓÃNE1
    

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

  14.     SRAM_Handler.Init.MemoryType=FMC_MEMORY_TYPE_SRAM;   //SRAM
    

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

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

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

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

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

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

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

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

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

  24.     SRAM_Handler.Init.ContinuousClock=FMC_CONTINUOUS_CLOCK_SYNC_ASYNC;
    


  25. 

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

  27. //    FSMC_ReadWriteTim.AddressHoldTime=0x01;
    

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

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

  30.     FSMC_ReadWriteTim.AddressHoldTime=0x01;
    

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

  32. //         FSMC_ReadWriteTim.BusTurnAroundDuration = 0;
    

  33. //          FSMC_ReadWriteTim.CLKDivision = 0;
    

  34. //          FSMC_ReadWriteTim.DataLatency = 0;
    

  35.         
    

  36.     FSMC_ReadWriteTim.AccessMode=FMC_ACCESS_MODE_B; //ģʽA
    

  37.     //FSMCдʱÐò¿ØÖƼĴæÆ÷
    

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

  39.     FSMC_WriteTim.AddressHoldTime=0x00;
    

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

  41.     FSMC_WriteTim.AccessMode=FMC_ACCESS_MODE_A;     //ģʽA
    

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

  43.          delay_ms(50); // delay 50 ms 
    

  44. }  
    

  45. void W5300_Config(void)
    

  46. {
    

  47.         unsigned char *ptr;
    

  48. //        unsigned char *ptr;
    

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

  50.         //GPIO_SetBits(GPIOE, W5300_RST);
    

  51.         /* Wait Ethernet Link */
    

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

  53.   delay_ms(10); // delay 50 ms
    

  54. /*        ptr=(unsigned char*)MR;
    

  55.         ip=*ptr;
    

  56.         */
    

  57.         UDP_OK=0;
    

  58.         ptr=(unsigned char*)MR1;
    

  59.         *ptr=0x80;
    

  60.          delay_ms(15);
    


  61. 

  62.         ptr=(unsigned char*)MR1;
    

  63.         *ptr=0x00;
    

  64.         ptr=(unsigned char*)MR;
    

  65.         *ptr=0x38;
    

  66. //         delay_ms(10);
    

  67. //        ptr=(unsigned char*)MR1;
    

  68. //        ip=*ptr;
    

  69.   delay_ms(10);
    

  70.  //ÅäÖÃÖжÏ
    

  71.          ptr=(unsigned char*)IR;
    

  72.         *ptr=0x00;
    

  73.         ptr=(unsigned char*)IR1;
    

  74.         *ptr=0x00;
    

  75.         /* Set Gateway address as "192.168.0.1" */
    

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

  77.   *ptr=0xc0;
    

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

  79.         *ptr=0xa8;
    

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

  81.   *ptr=0x01;
    

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

  83.         *ptr=0x01;
    


  84. 

  85.         /* Set IP address as "192.168.0.20" */
    

  86.         ptr=(unsigned char*)SIPR;
    

  87.         *ptr=0xc0;
    

  88.         ptr=(unsigned char*)SIPR1;
    

  89.         *ptr=0xa8;
    

  90.         ptr=(unsigned char*)SIPR2;
    

  91.         *ptr=0x01;
    

  92.         ptr=(unsigned char*)SIPR3;
    

  93.         *ptr=0x14;
    

  94.         /* Set Subnet mask as "255.255.255.0" */
    

  95.         ptr=(unsigned char*)SUBR;
    

  96.         /**ptr++=0xffff;
    

  97.         *ptr=0xff00;
    

  98.         */
    

  99.         *ptr=0xFF;
    

  100.         ptr=(unsigned char*)SUBR1;
    

  101.         *ptr=0xff;
    

  102.         ptr=(unsigned char*)SUBR2;
    

  103.         *ptr=0xff;
    

  104.         ptr=(unsigned char*)SUBR3;
    

  105.         *ptr=0x00;
    

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

  107.         ip=*ptr;
    

  108.         delay_ms(15);
    

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

  110.         ptr=(unsigned char*)SHAR;
    

  111.         *ptr=0x00;
    

  112.         ptr=(unsigned char*)SHAR1;
    

  113.         *ptr=0x08;
    

  114.         ptr=(unsigned char*)SHAR2;
    

  115.         *ptr=0xDC;
    

  116.         ptr=(unsigned char*)SHAR3;
    

  117.         *ptr=0x01;
    

  118.         ptr=(unsigned char*)SHAR4;
    

  119.         *ptr=0x02;
    

  120.         ptr=(unsigned char*)SHAR4;
    

  121.         *ptr=0x03;
    

  122.         //ÉèÖÃÄÚ´æ´óС
    

  123.                 ptr=(unsigned char*)TMS01R;
    

  124.          *ptr=0x04;
    

  125.          ptr=(unsigned char*)TMSR1;
    

  126.          *ptr=0x10;
    

  127.           ptr=(unsigned char*)TMSR2;
    

  128.          *ptr=0x01;
    

  129.           ptr=(unsigned char*)TMSR3;
    

  130.          *ptr=0x14;
    

  131.           ptr=(unsigned char*)TMSR4;
    

  132.          *ptr=0x00;
    

  133.           ptr=(unsigned char*)TMSR5;
    

  134.          *ptr=0x07;
    

  135.           ptr=(unsigned char*)TMSR6;
    

  136.          *ptr=0x0c;
    

  137.           ptr=(unsigned char*)TMSR7;
    

  138.          *ptr=0x0c;
    

  139.          //
    

  140.           ptr=(unsigned char*)RMS01R;
    

  141.          *ptr=0x11;
    

  142.                  ptr=(unsigned char*)RMSR1;
    

  143.          *ptr=0x03;
    

  144.                  ptr=(unsigned char*)RMSR2;
    

  145.          *ptr=0x05;
    

  146.                  ptr=(unsigned char*)RMSR3;
    

  147.          *ptr=0x10;
    

  148.                  ptr=(unsigned char*)RMSR4;
    

  149.          *ptr=0x03;
    

  150.                  ptr=(unsigned char*)RMSR5;
    

  151.          *ptr=0x04;
    

  152.                  ptr=(unsigned char*)RMSR6;
    

  153.          *ptr=0x04;
    

  154.                  ptr=(unsigned char*)RMSR7;
    

  155.          *ptr=0x04;
    

  156.         //ÉèÖÃÄÚ´æ
    

  157.          ptr=(unsigned char*)MTYPER0;
    

  158.         *ptr=0x01;
    

  159.          ptr=(unsigned char*)MTYPER1;
    

  160.         *ptr=0xff;
    

  161.         /* Set interrupt mask */
    

  162.                 ptr=(unsigned char*)IMR;
    

  163.         *ptr=IR_CONFLICT;
    

  164.         ptr=(unsigned char*)IMR1;
    

  165.         *ptr=0x01;
    

  166.          delay_ms(10); // delay 50 ms
    

  167.                  ptr=(unsigned char*)IMR1;                                        
    

  168.      ip=*ptr;
    

  169.                   delay_ms(10); // delay 50 ms
    

  170. }
    


  171. 

  172. unsigned int Socket0_UDP(void)
    

  173. {
    

  174.         unsigned char *ptr;
    

  175.         unsigned char i;
    


  176. 

  177.         /* Set Socket Port Number as 5000*/
    

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

  179.         *ptr=5000;*/
    

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

  181.   *ptr=0x13;
    

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

  183.         *ptr=0x88;//0x1388
    

  184.         /* Set Destination IP  as "192.168.0.30" */
    


  185. 

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

  187.   *ptr=0xc0;
    

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

  189.         *ptr=0xA8;
    

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

  191.         *ptr=0x01;
    

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

  193.         *ptr=0x16;
    

  194.         
    

  195.         
    

  196.         //ÎïÀíµØÖ·
    

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

  198.         *ptr=0x28;
    

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

  200.         *ptr=0xd2;
    

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

  202.         *ptr=0x44;
    

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

  204.         *ptr=0x3e;
    

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

  206.         *ptr=0x77;
    

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

  208.         *ptr=0x3a;
    

  209.         
    

  210.         
    

  211.         
    

  212.         /* Set Destination Port number as 5000 */
    

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

  214.         *ptr=5000;*/
    

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

  216.   *ptr=0x13;
    

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

  218.         *ptr=0x88;//0x1388
    

  219.    ptr=(unsigned char*)Sn_MSSR(0);
    

  220.         *ptr=0x05;
    

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

  222.         *ptr=0xb4;//0x5b4
    

  223.         /* Set Socket0 in UDP mode */
    

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

  225.         *ptr=0x02;//
    


  226. 

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

  228. //                *ptr=Sn_CR_CLOSE;
    

  229. //        delay_ms(10);
    

  230.         /* Open Socket0 */
    

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

  232.         *ptr=Sn_CR_OPEN;
    

  233.         
    

  234.         delay_ms(10);
    

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

  236.         i=*ptr;
    

  237.         ip=i;
    

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

  239.         {
    

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

  241.                 *ptr=Sn_CR_CLOSE;
    

  242.                 delay_ms(10);
    

  243.                 return FALSE;
    

  244.         }
    

  245.         S0_SendOK=1;
    

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

  247.         return TRUE;
    

  248. }
    


  249. 

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

  251. unsigned char S0_udprx_process(void)
    

  252. {
    

  253.         unsigned char*ptr;
    

  254.         unsigned short rx_size;
    

  255.         unsigned int i,j;
    


  256. 


  257. 

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

  259.         ip=*ptr;
    

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

  261.         ip=*ptr;
    

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

  263.         ip=*ptr;
    

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

  265.         ip=*ptr;
    

  266.  //ip=rx_size;
    

  267.                  delay_us(10);
    

  268.         if(ip==0)                 
    

  269.                 return 0;
    

  270. //ip
    

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

  272.         IP_Buffer[0]=*ptr;
    

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

  274.         IP_Buffer[1]=*ptr;
    

  275.          delay_us(30);
    

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

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

  278.         IP_Buffer[2]=*ptr;
    

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

  280.         IP_Buffer[3]=*ptr;
    

  281.          delay_us(30);
    

  282.         //¶Ë¿Ú
    

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

  284.         IP_Buffer[4]=*ptr;
    

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

  286.         IP_Buffer[5]=*ptr;
    

  287.          delay_us(30);
    

  288.   //Êý¾Ý
    

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

  290.         IP_Buffer[6]=*ptr;
    

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

  292.         IP_Buffer[7]=*ptr;
    

  293.          delay_us(30);
    

  294.          //Êý¾Ý´¦Àí
    

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

  296.         if(i%2!=0) i++; 
    

  297.         //i=i/2;
    

  298.   for(j=0;j<i;j++)
    

  299.         {
    

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

  301.         R_Buffer[j]=*ptr;
    

  302.                 j++;
    

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

  304.         R_Buffer[j]=*ptr;
    

  305.          delay_us(30);
    

  306.         }
    

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

  308.         *ptr=Sn_CR_RECV;
    


  309. 

  310.         return i;
    

  311. }
    


  312. 


  313.
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 楼主| chenwang1996 发表于 2020-9-27 15:39 | 显示全部楼层
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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观海 发表于 2020-10-12 08:29 | 显示全部楼层
通讯速度是多少啊
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guanjiaer 发表于 2020-10-12 08:29 | 显示全部楼层
楼主找到问题了吗
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 楼主| chenwang1996 发表于 2020-10-12 16:07 | 显示全部楼层
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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 楼主| chenwang1996 发表于 2020-10-12 16:19 | 显示全部楼层
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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