Question

在winbond W25Q32上写入大于256字节的数据时遇到问题。我正在使用Quectel MC60（Eclipse IDE）进行编程。问题是我可以写一个页面。

顺序如下：

读取已读（page_addr）
擦除Erase_sector（0）//要擦除的扇区
写write（page_addr，buff）// buff是要写入的数据字节

Ql_strcpy（buff3，“ EDIT（11-MAR-2014）：_read_page低层函数存在问题，我忘记将CS HIGH拉高，然后在函数开始时将CS拉低这意味着如果_read_page是您调用的第一个函数，则CS可能还不是很高，因此如果没有有效的/ CS 1-> 0转换_read_page将无法正常运行，这是第一次调用。很好，因为它将/ CS保留为1。但是很小”）;
//这是缓冲区

代码如下：

void proc_main_task(void)
{
    s32 ret;
    ST_MSG msg;
    bool keepGoing = TRUE;
    u8 ar[255];
    u8 counter=0xf0,temp_counter=0;
    char counter_s[6];

    Ql_memset(ar,0,sizeof(ar));

    // Register & open UART port
    Ql_UART_Register(UART_PORT1, CallBack_UART_Hdlr, NULL);
    Ql_UART_Open(UART_PORT1, 115200, FC_NONE);

    Ql_UART_Register(UART_PORT2, CallBack_UART_Hdlr, NULL);
    Ql_UART_Open(UART_PORT2, 115200, FC_NONE);

    APP_DEBUG("\r\n<-- OpenCPU: SPI TEST! -->\r\n")

                      //chnnlNo,              //pinClk,              //pinMiso,            //pinMosi,          //pinCs,             //spiType
    ret = Ql_SPI_Init(USR_SPI_CHANNAL,PINNAME_PCM_IN,PINNAME_PCM_SYNC,PINNAME_PCM_OUT,PINNAME_PCM_CLK,spi_usr_type);

    if(ret <0)
    {
        APP_DEBUG("\r\n<-- Failed!! Ql_SPI_Init fail , ret =%d-->\r\n",ret)
    }
    else
    {
        APP_DEBUG("\r\n<-- Ql_SPI_Init ret =%d -->\r\n",ret)
    }
    ret = Ql_SPI_Config(USR_SPI_CHANNAL,1,0,0,10000); //config sclk about 10MHz;
    if(ret <0)
    {
        APP_DEBUG("\r\n<--Failed!! Ql_SPI_Config fail  ret=%d -->\r\n",ret)
    }
    else
    {
        APP_DEBUG("\r\n<-- Ql_SPI_Config  =%d -->\r\n",ret)
    }

    //init cs pin
    if (!spi_usr_type)
    {
        Ql_GPIO_Init(PINNAME_PCM_CLK,PINDIRECTION_OUT,PINLEVEL_HIGH,PINPULLSEL_PULLUP);   //CS high
    }
    u8 buff1[255]={0};
    u16 addr=0,dev_id=0;
    u8 i=0,counter1=0;
    u8 buff3[1024];
    u8 buff2[255]={0};
    Ql_memset(buff3,0,sizeof(buff3));
    Ql_strcpy(buff3,"EDIT (11-MAR-2014): There was an issue with the _read_page low-level function, I had forgotten to pull CS HIGH before pulling it LOW at the start of the function, like the other functions. This means if _read_page is the first function you call, CS may not already be high, so without a valid /CS 1->0 transition _read_page will not function properly, the first time it is called. The second time it would work fine because it leaves /CS as 1. Small but");
    if (cmd_is_over1())
        flash_rd_id();   // for reading JEDEC ID
    else
        APP_DEBUG("error.\r\n");

    dev_id = Ql_atoi(s);

    APP_DEBUG("DEVICE ID: %d\r\n",dev_id);
    if(!Ql_strcmp(s,"4016"))
        APP_DEBUG("Number of pages are 16384.\r\n")
    else
        APP_DEBUG("Number of pages error.\r\n")

    ql_winbond_flash_block_unlock();   // unlock flash block

    if (cmd_is_over1())
        flash_rd_id2();          // For reading MID /DID
    else
        APP_DEBUG("error.\r\n")

        APP_DEBUG("buff3 %s\r\n",buff3);

//    for(counter=0;counter<50;counter++)  // for reading
//    {
    Ql_memset(buff1,0,sizeof(buff1));
    if (cmd_is_over1())
    {
        flash_rd_data1(counter,buff1,255);
        cmd_is_over1();
    }
    else
        APP_DEBUG("error.\r\n")

    if (cmd_is_over1())
    {
        flash_rd_data1((counter+1),buff1,255);
        cmd_is_over1();
    }
    else
        APP_DEBUG("error.\r\n")

        Ql_Sleep(50);

    counter1=Ql_atoi(buff1);
    APP_DEBUG("counter1 =%d\r\n",counter1);
//    counter1=temp_counter;  // check

    Ql_memset(counter_s,0,sizeof(counter_s));
    counter1++;
    Ql_sprintf(counter_s,"%d",counter1);
    APP_DEBUG("counter_s =%s\r\n",counter_s);
//    }
//    Ql_Sleep(500);



    if (cmd_is_over1())
        flash_erase_sector1(0);
    else
        APP_DEBUG("error.\r\n")

//    for(counter=0;counter<50;counter++)  // for writing
//    {
    if (cmd_is_over1())
    {
//          flash_wr_data(counter,my_itoa(counter,ar,10),sizeof(my_itoa(counter,ar,10)));
///     flash_wr_data(counter,"India is a beautiful country",Ql_strlen("India is a beautiful country"));
        flash_wr_data(counter,buff3,Ql_strlen(buff3));
//      flash_wr_data(counter,counter_s,Ql_strlen(counter_s));
        cmd_is_over1();
    }
//          flash_wr_data(counter,"India\0",sizeof("India\0"));
    else
        APP_DEBUG("error.\r\n")
    Ql_Sleep(50);
//    }

//    Ql_memset(buff1,0,sizeof(buff1));
//    if (cmd_is_over1())
//          flash_rd_data1(addr,buff1,255);

   while (keepGoing)
    {
        Ql_OS_GetMessage(&msg);
        switch(msg.message)
        {
            default:
                break;
        }
    }
}

Quectel Winbond SPI页面写入

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