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现在打算用CH554G做一个转接板，需要驱动XR21V1410芯片，找了倒程只有PL2302,CH340,CP2012的，不知道XR21V1410如何设置串口参数，是否可以提供解决方法？怎么组SETUP包，应该按什么样的顺序发送SETUP包？
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3个回答
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如果是通过USB通讯的话，可以先接入电脑，通过电脑端USB抓包工具看一下操作流程。然后单片机模拟这个流程操作USB设备。
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有没有什么文档可以说明这个过程如何分析操作的？现在用Bus Hound 抓包也不会看，有点头大
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自己搞定了，因为自己的需求很简单，就是透传USB口和串口的数据，9600的波特率，停止位-1，奇偶校验-无，数据位-8。
还是看芯片的规格书，不需要插电脑上用USB数据抓包，用的原厂的例程，然后找到芯片的PID,VID，再按着例程的驱动CH340的方式来写匹配PID,VID,匹配上了后设置波特率，根据规格书来组SETUP包，其中发SETUP包的时候，刚开始用FOR循环发会有问题，后面改成一条条好就可以，花了很多时间来了解USB的相关内容，其实例程已经做好了很多前面的工作，只要自己组SETUP包，然后发送就可以正常运行起来了。参考了这个文章的思路http://www.wch.cn/bbs/thread-72287-1.html 下面是程序改动的地方： USBHOST_IF.C文件 #define XR21V1410_VENDOR_ID0X04E2 //ADD by sean增加VID #define XR21V1410_PRODUCT_ID 0X1410 //ADD by sean增加PID const UINT16 XR21V1410_ID_Table[]={XR21V1410_VENDOR_ID,XR21V1410_PRODUCT_ID,}; //ADD by sean 增加表 //配置XR21V1410波特率 ,成功返回0 UINT8 XR21V1410_Baud_Config(UINT32 baud) { UINT8 s=0; //UINT16 i=0,j=0; /*UINT8 XR21V1410_Setup_Packet[32]= { 0x40,0x00,0x10,0x00,0X01,0x04,0x00,0x00,//FIFO_ENABLE = 0x1 // Enable TX FIFO 0x40,0x00,0x03,0x00,0X03,0x00,0x00,0x00,//UART_ENABLE = 0x3 // Enable TX and RX of that channel 0x40,0x00,0x10,0x00,0X03,0x04,0x00,0x00,//FIFO_ENABLE = 0x3 // Enable RX FIFO 0x40,0x00,0x03,0x00,0X03,0x00,0x00,0x00,//使能TX,RX //0x40,0x00,0x04,0x00,0x88,0x00,0x00,0x00,//波特率时钟除数0 //0x40,0x00,0x05,0x00,0x13,0x00,0x00,0x00,//波特率时钟除数1 //0x40,0x00,0x06,0x00,0x00,0x00,0x00,0x00,//波特率时钟除数2 //0x40,0x00,0x07,0x00,0x00,0x00,0x00,0x00,//波特率时钟余数TX查找表的索0 //0x40,0x00,0x08,0x00,0x00,0x00,0x00,0x00,//波特率时钟余数TX查找表的索1 //0x40,0x00,0x09,0x00,0x00,0x00,0x00,0x00,//波特率时钟余数RX查找表的索0 //0x40,0x00,0x0A,0x00,0x00,0x00,0x00,0x00,//波特率时钟余数RX查找表的索1 //0x40,0x00,0x0B,0x00,0x08,0x00,0x00,0x00 //停止位-1，奇偶校验-无，数据位-8 };*/ #if DE_PRINTF printf( "XR21V1410_Baud_Config START by seann " ); //测试是否程序运行到此处 by sean printf("ThisUsbDev815.GpVar0=x%02X n",(UINT16)(ThisUsbDev.GpVar0)); // 可能是断开了 printf("ThisUsbDev816.GpVar1=x%02X n",(UINT16)(ThisUsbDev.GpVar1)); // 可能是断开了 printf("ThisUsbDev817.GpVar2=x%02X n",(UINT16)(ThisUsbDev.GpVar2)); // 可能是断开了 #endif /*while(j<32) { for(i=0;i<8;++i) { TxBuffer=XR21V1410_Setup_Packet[j]; ++j; #if DE_PRINTF printf( "TxBuffer[%d]=x%02X n", j,(UINT16)( TxBuffer ) ); //测试是否程序运行到此处 by sean #endif } i = 0; s = HostCtrlTransfer( NULL, NULL ); } */ //0x40,0x00,0x10,0x00,0X01,0x04,0x00,0x00,//FIFO_ENABLE = 0x1 // Enable TX FIFO TxBuffer[0] = 0x40; TxBuffer[1] = 0x00; TxBuffer[2] = 0x10; TxBuffer[3] = 0x00; TxBuffer[4] = 0x01; TxBuffer[5] = 0x04; TxBuffer[6] = 0x00; TxBuffer[7] = 0x00; s = HostCtrlTransfer( NULL, NULL ); //0x40,0x00,0x03,0x00,0X03,0x00,0x00,0x00,//UART_ENABLE = 0x3 // Enable TX and RX of that channel TxBuffer[0] = 0x40; TxBuffer[1] = 0x00; TxBuffer[2] = 0x03; TxBuffer[3] = 0x00; TxBuffer[4] = 0x03; TxBuffer[5] = 0x00; TxBuffer[6] = 0x00; TxBuffer[7] = 0x00; s = HostCtrlTransfer( NULL, NULL ); //0x40,0x00,0x10,0x00,0X03,0x04,0x00,0x00,//FIFO_ENABLE = 0x3 // Enable RX FIFO TxBuffer[0] = 0x40; TxBuffer[1] = 0x00; TxBuffer[2] = 0x10; TxBuffer[3] = 0x00; TxBuffer[4] = 0X03; TxBuffer[5] = 0x04; TxBuffer[6] = 0x00; TxBuffer[7] = 0x00; s = HostCtrlTransfer( NULL, NULL ); //0x40,0x00,0x03,0x00,0X03,0x00,0x00,0x00,//使能TX,RX TxBuffer[0] = 0x40; TxBuffer[1] = 0x00; TxBuffer[2] = 0x03; TxBuffer[3] = 0x00; TxBuffer[4] = 0x03; TxBuffer[5] = 0x00; TxBuffer[6] = 0x00; TxBuffer[7] = 0x00; s = HostCtrlTransfer( NULL, NULL ); //0x40,0x00,0x04,0x00,0x88,0x00,0x00,0x00,//波特率时钟除数0 TxBuffer[0] = 0x40; TxBuffer[1] = 0x00; TxBuffer[2] = 0x04; TxBuffer[3] = 0x00; TxBuffer[4] = 0x88; TxBuffer[5] = 0x00; TxBuffer[6] = 0x00; TxBuffer[7] = 0x00; s = HostCtrlTransfer( NULL, NULL ); //0x40,0x00,0x05,0x00,0x13,0x00,0x00,0x00,//波特率时钟除数1 TxBuffer[0] = 0x40; TxBuffer[1] = 0x00; TxBuffer[2] = 0x05; TxBuffer[3] = 0x00; TxBuffer[4] = 0x13; TxBuffer[5] = 0x00; TxBuffer[6] = 0x00; TxBuffer[7] = 0x00; s = HostCtrlTransfer( NULL, NULL ); //0x40,0x00,0x06,0x00,0x00,0x00,0x00,0x00,//波特率时钟除数2 TxBuffer[0] = 0x40; TxBuffer[1] = 0x00; TxBuffer[2] = 0x06; TxBuffer[3] = 0x00; TxBuffer[4] = 0x00; TxBuffer[5] = 0x00; TxBuffer[6] = 0x00; TxBuffer[7] = 0x00; s = HostCtrlTransfer( NULL, NULL ); //0x40,0x00,0x07,0x00,0x00,0x00,0x00,0x00,//波特率时钟余数TX查找表的索0 TxBuffer[0] = 0x40; TxBuffer[1] = 0x00; TxBuffer[2] = 0x07; TxBuffer[3] = 0x00; TxBuffer[4] = 0x00; TxBuffer[5] = 0x00; TxBuffer[6] = 0x00; TxBuffer[7] = 0x00; s = HostCtrlTransfer( NULL, NULL ); //0x40,0x00,0x08,0x00,0x00,0x00,0x00,0x00,//波特率时钟余数TX查找表的索1 TxBuffer[0] = 0x40; TxBuffer[1] = 0x00; TxBuffer[2] = 0x08; TxBuffer[3] = 0x00; TxBuffer[4] = 0x00; TxBuffer[5] = 0x00; TxBuffer[6] = 0x00; TxBuffer[7] = 0x00; s = HostCtrlTransfer( NULL, NULL ); //0x40,0x00,0x09,0x00,0x00,0x00,0x00,0x00,//波特率时钟余数RX查找表的索0 TxBuffer[0] = 0x40; TxBuffer[1] = 0x00; TxBuffer[2] = 0x09; TxBuffer[3] = 0x00; TxBuffer[4] = 0x00; TxBuffer[5] = 0x00; TxBuffer[6] = 0x00; TxBuffer[7] = 0x00; s = HostCtrlTransfer( NULL, NULL ); //0x40,0x00,0x0A,0x00,0x00,0x00,0x00,0x00,//波特率时钟余数RX查找表的索1 TxBuffer[0] = 0x40; TxBuffer[1] = 0x00; TxBuffer[2] = 0x0A; TxBuffer[3] = 0x00; TxBuffer[4] = 0x00; TxBuffer[5] = 0x00; TxBuffer[6] = 0x00; TxBuffer[7] = 0x00; s = HostCtrlTransfer( NULL, NULL ); //0x40,0x00,0x0B,0x00,0x08,0x00,0x00,0x00 //停止位-1，奇偶校验-无，数据位-8 TxBuffer[0] = 0x40; TxBuffer[1] = 0x00; TxBuffer[2] = 0x0B; TxBuffer[3] = 0x00; TxBuffer[4] = 0x08; TxBuffer[5] = 0x00; TxBuffer[6] = 0x00; TxBuffer[7] = 0x00; s = HostCtrlTransfer( NULL, NULL ); #if DE_PRINTF printf( "XR21V1410_Baud_Config END by seann " ); //测试是否程序运行到此处 by sean printf("ThisUsbDev832.GpVar0=x%02X n",(UINT16)(ThisUsbDev.GpVar0)); // 可能是断开了 printf("ThisUsbDev833.GpVar1=x%02X n",(UINT16)(ThisUsbDev.GpVar1)); // 可能是断开了 printf("ThisUsbDev834.GpVar2=x%02X n",(UINT16)(ThisUsbDev.GpVar2)); // 可能是断开了 #endif return( s ); } InitRootDevice函数匹配芯片PID,VID，进行波特率设置 if( MatchID(dev_vid,dev_pid,XR21V1410_ID_Table,sizeof(XR21V1410_ID_Table)/sizeof(UINT16)) ) //XR21V1410 //ADD by sean { ThisUsbDev.DeviceType = DEV_TYPE_XR21V1410; //初始化波特率参数(类命令) s = XR21V1410_Baud_Config(Comm_Baud); if(s==ERR_SUCCESS) { ThisUsbDev.DeviceStatus = ROOT_DEV_SUCCESS; //设备初始化成功 return ERR_SUCCESS; } } DEBUG.C #define DE_PRINTF 1 //打开调试信息 by sean main.c //#pragma NOAREGS //屏蔽编程命令 by sean /* //屏蔽 dataflash读取设置参数功能 by sean //ReadDataFlash(0,4,(UINT8 *)&Comm_Baud); //屏蔽从dataflash读取参数,并配置 功能 by sean Comm_Baud = 9600; //手动设置波特率为9600 by sean 寄存器说明REGISTER NAME0x40 XR_SET_REG0val address0registerblock00寄存器值功能UART管理器寄存器 启用寄存器描述（读/写）Enable TX FIFO0x400x000x100x000X010x040x000x00FIFO_ENABLE = 0x1 // Enable TX FIFO Enable TX and RX0x400x000x030x000X030x000x000x00UART_ENABLE = 0x3 // Enable TX and RX of that channel Enable RX FIFO0x400x000x100x000X030x040x000x00FIFO_ENABLE = 0x3 // Enable RX FIFOUART寄存器 启用寄存器描述（读/写）Enable UART TX RX0x400x000x030x000X030x000x000x00使能TX.RX时钟除数0寄存器描述（读/写） 48000000 / Baud RateCLOCK_DIVISOR00x400x000x040x000x880x000x000x00波特率115200=416，波特率9600=5000,?10001000?时钟除数1寄存器描述CLOCK_DIVISOR10x400x000x050x000x130x000x000x0000010011时钟除数2寄存器描述CLOCK_DIVISOR20x400x000x060x000x000x000x000x0000000000( ( ( 48000000 / Baud Rate ) - CLOCK_DIVISOR ) * 32)TX_CLOCK_MASK00x400x000x070x000x000x000x000x00((48000000/9600)-5000)*32=0TX时钟索引（读/写）TX_CLOCK_MASK10x400x000x080x000x000x000x000x00((48000000/9600)-5000)*32=0RX时钟屏蔽寄存器的波特率RX_CLOCK_MASK00x400x000x090x000x000x000x000x00((48000000/9600)-5000)*32=0 RX_CLOCK_MASK10x400x000x0A0x000x000x000x000x00((48000000/9600)-5000)*32=0[7]：停止位选择；[6:4]：奇偶校验模式选择；[3:0]：数据位CHARACTER_FORMAT0x400x000x0B0x000x080x000x000x00停止位-1，奇偶校验-无，数据位-8，00001000 规格书就是看下面的内容，XR_SET_REG 0x04的设置命令 |
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