//*****************************************************************************
//
//! \brief Initial CH376 as USB host.
//!
//! \param None
//!
//! \return error code defined in hw_CH376INC.h.
//
//*****************************************************************************
UINT8 mInitCH376Host( void )
{
UINT8 res;
CH376PortInit( );
xWriteCH376Cmd( CMD11_CHECK_EXIST );
xWriteCH376Data( 0x65 );
res = xReadCH376Data( );
xEndCH376Cmd( );
if ( res != 0x9A ) return( ERR_USB_UNKNOWN );
xWriteCH376Cmd( CMD11_SET_USB_MODE );
xWriteCH376Data( 0x06 );
mDelayuS( 20 );
res = xReadCH376Data( );
xEndCH376Cmd( );
#ifdef CH376_USE_SOFTWARE_SPI
#ifdef CH376_SPI_SDO_INT
xWriteCH376Cmd( CMD20_SET_SDO_INT );
xWriteCH376Data( 0x16 );
xWriteCH376Data( 0x90 );
xEndCH376Cmd( );
#endif
#endif
if ( res == CMD_RET_SUCCESS ) return( USB_INT_SUCCESS );
else return( ERR_USB_UNKNOWN );
}
uchar CH376GetIntStatus( void ) /* 获取中断状态并取消中断请求 */
{
uchar s;
xWriteCH376Cmd(CMD01_GET_STATUS);
s = xReadCH376Data();
return(s);
}
UINT8 mInitCH376Host( void ) /* 初始化CH376 */
{
UINT8 res;
CH376_PORT_INIT( ); /* 接口硬件初始化 */
xWriteCH376Cmd( CMD11_CHECK_EXIST ); /* 测试单片机与CH376之间的通讯接口 */
xWriteCH376Data( 0x65 );
res = xReadCH376Data( );
// xEndCH376Cmd( ); // 并口方式不需要
if ( res != 0x9A ) return( ERR_USB_UNKNOWN ); /* 通讯接口不正常,可能原因有:接口连接异常,其它设备影响(片选不唯一),串口波特率,一直在复位,晶振不工作 */
xWriteCH376Cmd( CMD11_SET_USB_MODE ); /* 设备USB工作模式 */
xWriteCH376Data( 0x06 );
mDelayuS( 20 );
res = xReadCH376Data( );
// xEndCH376Cmd( ); // 并口方式不需要
if ( res == CMD_RET_SUCCESS ) return( USB_INT_SUCCESS );
else return( ERR_USB_UNKNOWN ); /* 设置模式错误 */
}
/* 查询CH376中断(INT#低电平) */
uchar Query376Interrupt(void)
{
return USART_Receive_1();
}
uchar CH376DiskConnect(void)/*检查U盘是否连接*/
{
if (Query376Interrupt( )) CH376GetIntStatus( ); /* 检测到中断 */
return(CH376SendCmdWaitInt(CMD0H_DISK_CONNECT));
}
#define CMD50_WRITE_VAR32 0x0D /* 设置指定的32位文件系统变量 */
void CH376WriteVar32(uchar var, unsigned long dat ) /* 写CH376芯片内部的32位变量 */
{
xWriteCH376Cmd(CMD50_WRITE_VAR32);
xWriteCH376Data(var);
xWriteCH376Data((uchar)dat);
xWriteCH376Data((uchar)((uint)dat >> 8));
xWriteCH376Data((uchar)(dat >> 16));
xWriteCH376Data((uchar)(dat >> 24));
}
/* 设置将要操作的文件的文件名 */
uchar c;
xWriteCH376Cmd( CMD10_SET_FILE_NAME );
c = *name;
xWriteCH376Data(c);
while (c)
{
name++;
c = *name;
if (c == DEF_SEPAR_CHAR1 || c == DEF_SEPAR_CHAR2) c = 0; /* 强行将文件名截止 */
xWriteCH376Data(c);
}
if (name[0] == DEF_SEPAR_CHAR1 || name[0] == DEF_SEPAR_CHAR2) CH376WriteVar32( VAR_CURRENT_CLUST, 0 );
return(CH376SendCmdWaitInt(CMD0H_FILE_OPEN));
}
#define CMD1H_FILE_CLOSE 0x36 /* 主机文件模式: 关闭当前已经打开的文件或者目录(文件夹) */
uchar CH376FileClose(uchar UpdateSz) /* 关闭当前已经打开的文件或者目录(文件夹) */
{
xWriteCH376Cmd(CMD1H_FILE_CLOSE);
xWriteCH376Data(UpdateSz);
return(Wait376Interrupt());
}
#define CMD01_RD_USB_DATA0 0x27 /* 从当前USB中断的端点缓冲区或者主机端点的接收缓冲区读取数据块 */
uchar CH376ReadBlock(uchar * buf) /* 从当前主机端点的接收缓冲区读取数据块,返回长度 */
{
uchar s, l;
xWriteCH376Cmd(CMD01_RD_USB_DATA0);
s = l = xReadCH376Data( ); /* 长度 */
if(l)
{
do {
*buf = xReadCH376Data( );
buf ++;
} while ( -- l );
}
return( s );
}
#define CMD2H_BYTE_READ 0x3A /* 主机文件模式: 以字节为单位从当前位置读取数据块 */
#define USB_INT_DISK_READ 0x1D /* USB存储器请求数据读出 */
#define CMD0H_BYTE_RD_GO 0x3B /* 主机文件模式: 继续字节读 */
uchar CH376ByteRead(uchar * buf, uint ReqCount, uint * RealCount ) /* 以字节为单位从当前位置读取数据块 */
{
uchar s;
xWriteCH376Cmd(CMD2H_BYTE_READ);
xWriteCH376Data((uchar)ReqCount);
xWriteCH376Data((uchar)(ReqCount>>8));
if (RealCount) *RealCount = 0;
while ( 1 )
{
s = Wait376Interrupt( );
if (s == USB_INT_DISK_READ)
{
s = CH376ReadBlock(buf); /* 从当前主机端点的接收缓冲区读取数据块,返回长度 */
xWriteCH376Cmd(CMD0H_BYTE_RD_GO);
buf += s;
if (RealCount) *RealCount += s;
}
else return(s); /* 错误 */
}
}
/* 设置将要操作的文件的文件名 */
uchar c;
xWriteCH376Cmd( CMD10_SET_FILE_NAME );
c = *name;
xWriteCH376Data(c);
while (c)
{
name++;
c = *name;
if (c == DEF_SEPAR_CHAR1 || c == DEF_SEPAR_CHAR2) c = 0; /* 强行将文件名截止 */
xWriteCH376Data(c);
}
if (name[0] == DEF_SEPAR_CHAR1 || name[0] == DEF_SEPAR_CHAR2) CH376WriteVar32( VAR_CURRENT_CLUST, 0 );
return(CH376SendCmdWaitInt(CMD0H_FILE_OPEN));
}
#define CMD1H_FILE_CLOSE 0x36 /* 主机文件模式: 关闭当前已经打开的文件或者目录(文件夹) */
uchar CH376FileClose(uchar UpdateSz) /* 关闭当前已经打开的文件或者目录(文件夹) */
{
xWriteCH376Cmd(CMD1H_FILE_CLOSE);
xWriteCH376Data(UpdateSz);
return(Wait376Interrupt());
}
#define CMD01_RD_USB_DATA0 0x27 /* 从当前USB中断的端点缓冲区或者主机端点的接收缓冲区读取数据块 */
uchar CH376ReadBlock(uchar * buf) /* 从当前主机端点的接收缓冲区读取数据块,返回长度 */
{
uchar s, l;
xWriteCH376Cmd(CMD01_RD_USB_DATA0);
s = l = xReadCH376Data( ); /* 长度 */
if(l)
{
do {
*buf = xReadCH376Data( );
buf ++;
} while ( -- l );
}
return( s );
}
uchar CH376FileOpen(uchar * name) /* 在根目录或者当前目录下打开文件或者目录(文件夹) */
{
/* 设置将要操作的文件的文件名 */
uchar c;
xWriteCH376Cmd( CMD10_SET_FILE_NAME );
c = *name;
xWriteCH376Data(c);
while (c)
{
name++;
c = *name;
if (c == DEF_SEPAR_CHAR1 || c == DEF_SEPAR_CHAR2) c = 0; /* 强行将文件名截止 */
xWriteCH376Data(c);
}
if (name[0] == DEF_SEPAR_CHAR1 || name[0] == DEF_SEPAR_CHAR2) CH376WriteVar32( VAR_CURRENT_CLUST, 0 );
return(CH376SendCmdWaitInt(CMD0H_FILE_OPEN));
}
void host( ) {
UINT8 i, s;
UINT8 TotalCount;
UINT16 RealCount;
P_FAT_DIR_INFO pDir;
s = mInitCH376Host( ); /* 初始化CH376 */
mStopIfError( s );
/* 其它电路初始化 */
while ( 1 ) {
printf( "Wait Udisk/SD\n" );
while ( CH376DiskConnect( ) != USB_INT_SUCCESS ) { /* 检查U盘是否连接,等待U盘插入,对于SD卡,可以由单片机直接查询SD卡座的插拔状态引脚 */
if ( IsKeyPress( ) ) { /* 有键按下 */
printf( "Exit USB host mode\n" );
return;
}
mDelaymS( 100 ); /* 没必要频繁查询 */
}
LED_UDISK_IN( ); /* LED亮 */
mDelaymS( 200 ); /* 延时,可选操作,有的USB存储器需要几十毫秒的延时 */
/* 对于检测到USB设备的,最多等待100*50mS,主要针对有些MP3太慢,对于检测到USB设备并且连接DISK_MOUNTED的,最多等待5*50mS,主要针对DiskReady不过的 */
for ( i = 0; i < 100; i ++ ) { /* 最长等待时间,100*50mS */
mDelaymS( 50 );
printf( "Ready ?\n" );
s = CH376DiskMount( ); /* 初始化磁盘并测试磁盘是否就绪 */
if ( s == USB_INT_SUCCESS ) break; /* 准备好 */
else if ( s == ERR_DISK_DISCON ) break; /* 检测到断开,重新检测并计时 */
if ( CH376GetDiskStatus( ) >= DEF_DISK_MOUNTED && i >= 5 ) break; /* 有的U盘总是返回未准备好,不过可以忽略,只要其建立连接MOUNTED且尝试5*50mS */
}
if ( s == ERR_DISK_DISCON ) { /* 检测到断开,重新检测并计时 */
printf( "Device gone\n" );
continue;
}
if ( CH376GetDiskStatus( ) < DEF_DISK_MOUNTED ) { /* 未知USB设备,例如USB键盘、打印机等 */
printf( "Unknown device\n" );
goto UnknownUsbDevice;
}
i = CH376ReadBlock( buf ); /* 如果需要,可以读取数据块CH376_CMD_DATA.DiskMountInq,返回长度 */
if ( i == sizeof( INQUIRY_DATA ) ) { /* U盘的厂商和产品信息 */
buf[ i ] = 0;
printf( "UdiskInfo: %s\n", ((P_INQUIRY_DATA)buf) -> VendorIdStr );
}
/* 读取原文件 */
printf( "Open\n" );
strcpy( buf, "\\C51\\CH376HFT.C" ); /* 源文件名,多级目录下的文件名和路径名必须复制到RAM中再处理,而根目录或者当前目录下的文件名可以在RAM或者ROM中 */
s = CH376FileOpenPath( buf ); /* 打开文件,该文件在C51子目录下 */
if ( s == ERR_MISS_DIR || s == ERR_MISS_FILE ) { /* 没有找到目录或者没有找到文件 */
/* 列出文件,完整枚举可以参考EXAM13全盘枚举 */
if ( s == ERR_MISS_DIR ) strcpy( buf, "\\*" ); /* C51子目录不存在则列出根目录下的文件 */
else strcpy( buf, "\\C51\\CH376*" ); /* CH376HFT.C文件不存在则列出\C51子目录下的以CH376开头的文件 */
printf( "List file %s\n", buf );
s = CH376FileOpenPath( buf ); /* 枚举多级目录下的文件或者目录,输入缓冲区必须在RAM中 */
while ( s == USB_INT_DISK_READ ) { /* 枚举到匹配的文件 */
CH376ReadBlock( buf ); /* 读取枚举到的文件的FAT_DIR_INFO结构,返回长度总是sizeof( FAT_DIR_INFO ) */
pDir = (P_FAT_DIR_INFO)buf; /* 当前文件目录信息 */
if ( pDir -> DIR_Name[0] != '.' ) { /* 不是本级或者上级目录名则继续,否则必须丢弃不处理 */
if ( pDir -> DIR_Name[0] == 0x05 ) pDir -> DIR_Name[0] = 0xE5; /* 特殊字符替换 */
pDir -> DIR_Attr = 0; /* 强制文件名字符串结束以便打印输出 */
printf( "*** EnumName: %s\n", pDir -> DIR_Name ); /* 打印名称,原始8+3格式,未整理成含小数点分隔符 */
}
xWriteCH376Cmd( CMD0H_FILE_ENUM_GO ); /* 继续枚举文件和目录 */
xEndCH376Cmd( );
s = Wait376Interrupt( );
}
if ( s != ERR_MISS_FILE ) mStopIfError( s ); /* 操作出错 */
}
else { /* 找到文件或者出错 */
mStopIfError( s );
TotalCount = 200; /* 准备读取总长度 */
printf( "从文件中读出的前%d个字符是:\n",(UINT16)TotalCount );
while ( TotalCount ) { /* 如果文件比较大,一次读不完,可以再调用CH376ByteRead继续读取,文件指针自动向后移动 */
if ( TotalCount > sizeof(buf) ) i = sizeof(buf); /* 剩余数据较多,限制单次读写的长度不能超过缓冲区大小 */
else i = TotalCount; /* 最后剩余的字节数 */
s = CH376ByteRead( buf, i, &RealCount ); /* 以字节为单位读取数据块,单次读写的长度不能超过缓冲区大小,第二次调用时接着刚才的向后读 */
mStopIfError( s );
TotalCount -= (UINT8)RealCount; /* 计数,减去当前实际已经读出的字符数 */
for ( s=0; s!=RealCount; s++ ) printf( "%C", buf[s] ); /* 显示读出的字符 */
if ( RealCount < i ) { /* 实际读出的字符数少于要求读出的字符数,说明已经到文件的结尾 */
printf( "\n" );
printf( "文件已经结束\n" );
break;
}
}
printf( "Close\n" );
s = CH376FileClose( FALSE ); /* 关闭文件 */
mStopIfError( s );
}
UnknownUsbDevice:
printf( "Take out\n" );
while ( CH376DiskConnect( ) == USB_INT_SUCCESS ) { /* 检查U盘是否连接,等待U盘拔出 */
mDelaymS( 100 );
}
LED_UDISK_OUT( ); /* LED灭 */
mDelaymS( 100 );
}
}
//主程序
void main(void)
{
uint i = 0;
uint timercount = 0;
uchar packNO = 1;
uint bufferPoint = 0;
uint crc;
#ifdef UPDATE_USB
uchar s;
uint j;
unsigned long UpdateSize = 0;
uint LabCount = 0,lastdatanum = 0;
uchar string[50] = {0};
#endif
//初始化M128的USART0
UBRR0L = BAUD_L; //Set baud rate
UBRR0H = BAUD_H;
UCSR0B = ((1<<RXEN0)|(1<<TXEN0)); //接收器与发送器使能；
UCSR0C = (1<<USBS0)|(3<<UCSZ00); //设置帧格式: 8 个数据位, 1 个停止位；
#ifdef UPDATE_USB
//初始化M128的USART1
UBRR1L = 8;
UBRR1H = 0;
UCSR1B = ((1<<RXEN1)|(1<<TXEN1)); //接收器与发送器使能；
UCSR1C = (1<<USBS1)|(3<<UCSZ10); //设置帧格式: 8 个数据位, 1 个停止位；
#endif
//初始化M128的T/C0，15ms自动重载
OCR0 = 0x75;
TCCR0 = 0x0F;
TCNT0 = 0;
DDRB.0 = 1;
PORTB.0 = 1;
/*
USART_Send_string(a4String1);
while(uart_getchar()!='O');
while(uart_getchar()!='K');
USART_Send_string(a4String2);
while(uart_getchar()!='O');
while(uart_getchar()!='K');
*/
USART_Send_string(startupString);//向PC机发送开始提示信息
while(1)
{
if(uart_getchar()=='d')break;
if(TIFR&0x02)
{
if(++timercount>500) //若没有进入串口升级模式，则进入U盘升级模式 200*15ms=3s
{
#ifdef UPDATE_USB
sprintf((char*)string,"Enter the USB_Disk Update!\n",UpdateSize);
USART_Send_string(string);
//++++++++++++++++初始化CH376S++++++++++++++++++++++++
//CH376_PORT_INIT( ); /* 接口硬件初始化 */
xWriteCH376Cmd(CMD11_CHECK_EXIST); /* 测试单片机与CH376之间的通讯接口 */
xWriteCH376Data(0x65);
s = xReadCH376Data( );
if (s != 0x9A)
uart_putchar(ERR_USB_UNKNOWN); /* 通讯接口不正常,可能原因有:接口连接异常,其它设备影响(片选不唯一),串口波特率,一直在复位,晶振不工作 */
xWriteCH376Cmd(CMD11_SET_USB_MODE); /* 设备USB工作模式 */
xWriteCH376Data(0x06);
s = xReadCH376Data( );
if (s != CMD_RET_SUCCESS)
{
sprintf((char*)string,"USB_Disk is wrong init!\n",UpdateSize);
USART_Send_string(string);
quit();
}
//++++++++++++++++++++++END+++++++++++++++++++++++++++++++++
//检查U盘是否连接好
i = 0;
while(CH376DiskConnect() != USB_INT_SUCCESS)
{
if(++i > 5)
{
sprintf((char*)string,"USB_Disk is not Connection!\n",UpdateSize);
USART_Send_string(string);
quit();
}
delay_ms(100);
}
i = 0;
// 对于检测到USB设备的,最多等待10*50mS
if(CH376DiskMount() != USB_INT_SUCCESS)
{
if(++i > 5)
{
sprintf((char*)string,"USB_Disk Test Wrong!\n",UpdateSize);
USART_Send_string(string);
quit();
}
delay_ms(100);
}
//打开升级文件
s = CH376FileOpen("J8A-1.U");//每台机子，对应升级文件。
if (s == ERR_MISS_FILE) //没有找到升级文件则退出
{
CH376FileClose(TRUE);
sprintf((char*)string,"I can't fined the Update_File!\n",UpdateSize);
USART_Send_string(string);
quit();
}
UpdateSize = CH376GetFileSize();
sprintf((char*)string,"The Update_File size is :%dl\n",UpdateSize);
USART_Send_string(string);
LabCount = UpdateSize/SPM_PAGESIZE;
lastdatanum = UpdateSize%SPM_PAGESIZE;
if(lastdatanum)
LabCount++;
if(LabCount > (512-32))//mega128的flash页数
{
sprintf((char*)string,"The Update_File size is too big!",UpdateSize);
USART_Send_string(string);
CH376FileClose(FALSE);
quit();
}
//读取升级文件数据
for(i = 0; i < LabCount; i++)
{
if(lastdatanum && (i == (LabCount - 1)))
{
CH376ByteRead(data, lastdatanum, NULL);
for(j = lastdatanum; j < SPM_PAGESIZE; j++)
data[j] = 0xFF;
}
else
CH376ByteRead(data, SPM_PAGESIZE, NULL);
write_one_page();
address = address + SPM_PAGESIZE; //Flash页加1
}
//write_one_page(); //收到256字节写入一页Flash中
//address = address + SPM_PAGESIZE; //Flash页加1
//关闭文件
CH376FileClose(FALSE);
#endif
quit();
}
TIFR=TIFR|0x02;
}
}
//每秒向PC机发送一个控制字符"C"，等待控制字〈soh〉
while(uart_getchar()!= XMODEM_SOH) //receive the start of Xmodem
{
if(TIFR & 0x02) //timer0 over flow
{
if(++timercount > 100) //wait about 1 second
{
uart_putchar(XMODEM_RECIEVING_WAIT_CHAR); //send a "C"
timercount = 0;
}
TIFR = TIFR&0x02;
}
}
//开始接收数据块
do
{
if ((packNO == uart_waitchar()) && (packNO ==(~uart_waitchar())))
{ //核对数据块编号正确
for(i=0;i<128;i++) //接收128个字节数据
{
data[bufferPoint]= uart_waitchar();
bufferPoint++;
}
crc = (uint)(uart_waitchar())<<8;
crc = crc | uart_waitchar(); //接收2个字节的CRC效验字
if(calcrc(&data[bufferPoint-128],128) == crc) //CRC校验验证
{ //正确接收128个字节数据
while(bufferPoint >= SPM_PAGESIZE)
{ //正确接受256个字节的数据
write_one_page(); //收到256字节写入一页Flash中
address = address + SPM_PAGESIZE; //Flash页加1
bufferPoint = 0;
}
uart_putchar(XMODEM_ACK); //正确收到一个数据块
packNO++; //数据块编号加1
}
else
{
uart_putchar(XMODEM_NAK); //要求重发数据块
}
}
else
{
uart_putchar(XMODEM_NAK); //要求重发数据块
}
}while(uart_waitchar()!=XMODEM_EOT); //循环接收，直到全部发完
uart_putchar(XMODEM_ACK); //通知PC机全部收到
if(bufferPoint) write_one_page(); //把剩余的数据写入Flash中
quit(); //退出Bootloader程序，从0x0000处执行应用程序
}
/* 设置将要操作的文件的文件名 */
uchar c;
xWriteCH376Cmd( CMD10_SET_FILE_NAME );
c = *name;
xWriteCH376Data(c);
while (c)
{
name++;
c = *name;
if (c == DEF_SEPAR_CHAR1 || c == DEF_SEPAR_CHAR2) c = 0; /* 强行将文件名截止 */
xWriteCH376Data(c);
}
if (name[0] == DEF_SEPAR_CHAR1 || name[0] == DEF_SEPAR_CHAR2) CH376WriteVar32( VAR_CURRENT_CLUST, 0 );
return(CH376SendCmdWaitInt(CMD0H_FILE_OPEN));
}
#define CMD1H_FILE_CLOSE 0x36 /* 主机文件模式: 关闭当前已经打开的文件或者目录(文件夹) */
uchar CH376FileClose(uchar UpdateSz) /* 关闭当前已经打开的文件或者目录(文件夹) */
{
xWriteCH376Cmd(CMD1H_FILE_CLOSE);
xWriteCH376Data(UpdateSz);
return(Wait376Interrupt());
}
#define CMD01_RD_USB_DATA0 0x27 /* 从当前USB中断的端点缓冲区或者主机端点的接收缓冲区读取数据块 */
uchar CH376ReadBlock(uchar * buf) /* 从当前主机端点的接收缓冲区读取数据块,返回长度 */
{
uchar s, l;
xWriteCH376Cmd(CMD01_RD_USB_DATA0);
s = l = xReadCH376Data( ); /* 长度 */
if(l)
{
do {
*buf = xReadCH376Data( );
buf ++;
} while ( -- l );
}
return( s );
}
#define CMD2H_BYTE_READ 0x3A /* 主机文件模式: 以字节为单位从当前位置读取数据块 */
#define USB_INT_DISK_READ 0x1D /* USB存储器请求数据读出 */
#define CMD0H_BYTE_RD_GO 0x3B /* 主机文件模式: 继续字节读 */
uchar CH376ByteRead(uchar * buf, uint ReqCount, uint * RealCount ) /* 以字节为单位从当前位置读取数据块 */
{
uchar s;
xWriteCH376Cmd(CMD2H_BYTE_READ);
xWriteCH376Data((uchar)ReqCount);
xWriteCH376Data((uchar)(ReqCount>>8));
if (RealCount) *RealCount = 0;
while ( 1 )
{
s = Wait376Interrupt( );
if (s == USB_INT_DISK_READ)
{
s = CH376ReadBlock(buf); /* 从当前主机端点的接收缓冲区读取数据块,返回长度 */
xWriteCH376Cmd(CMD0H_BYTE_RD_GO);
buf += s;
if (RealCount) *RealCount += s;
}
else return(s); /* 错误 */
}
}
unsigned long CH376Read32bitDat( void ) /* 从CH376芯片读取32位的数据并结束命令 */
{
uchar c0, c1, c2, c3;
c0 = xReadCH376Data( );
c1 = xReadCH376Data( );
c2 = xReadCH376Data( );
c3 = xReadCH376Data( );
return(((unsigned long)c3 << 24) | ((unsigned long)c2 << 16) | ((unsigned long)c1 << 8) | c0 );
}
#define CMD14_READ_VAR32 0x0C /* 读取指定的32位文件系统变量 */
unsigned long CH376ReadVar32(uchar var) /* 读CH376芯片内部的32位变量 */
{
xWriteCH376Cmd(CMD14_READ_VAR32);
xWriteCH376Data(var);
return(CH376Read32bitDat( ) ); /* 从CH376芯片读取32位的数据并结束命令 */
}
/* 设置将要操作的文件的文件名 */
uchar c;
xWriteCH376Cmd( CMD10_SET_FILE_NAME );
c = *name;
xWriteCH376Data(c);
while (c)
{
name++;
c = *name;
if (c == DEF_SEPAR_CHAR1 || c == DEF_SEPAR_CHAR2) c = 0; /* 强行将文件名截止 */
xWriteCH376Data(c);
}
if (name[0] == DEF_SEPAR_CHAR1 || name[0] == DEF_SEPAR_CHAR2) CH376WriteVar32( VAR_CURRENT_CLUST, 0 );
return(CH376SendCmdWaitInt(CMD0H_FILE_OPEN));
}
#define CMD1H_FILE_CLOSE 0x36 /* 主机文件模式: 关闭当前已经打开的文件或者目录(文件夹) */
uchar CH376FileClose(uchar UpdateSz) /* 关闭当前已经打开的文件或者目录(文件夹) */
{
xWriteCH376Cmd(CMD1H_FILE_CLOSE);
xWriteCH376Data(UpdateSz);
return(Wait376Interrupt());
}
uchar CH376SendCmdWaitInt(uchar mCmd) /* 发出命令码后,等待中断 */
{
xWriteCH376Cmd(mCmd);
return Wait376Interrupt();
}