求助：用C8051F320模拟USB键盘键码重发问题 (amobbs.com 阿莫电子技术论坛) -

zzh90513 发表于 2012-8-20 23:54:10

求助：用C8051F320模拟USB键盘键码重发问题

我现在用C8051F320实现接收串口的字符然后模拟usb键盘将字符以文本的方式输入到文本文件里面。
现在遇到的问题是接收一个字符后，这个字符会自动重发，找了一天没找到主要原因。希望哪位大侠能指点迷津一下啊。
不胜感激。//-----------------------------------------------------------------------------
// UART0_Interrupt
//-----------------------------------------------------------------------------
//
// This routine is invoked whenever a character is entered or displayed on the
// Hyperterminal.
//
//-----------------------------------------------------------------------------

void UART0_Interrupt (void) interrupt 4
{
unsigned char key=0;
unsigned char rx=0;

if (RI0 == 1)
{
   rx = SBUF0;
   RI0 = 0;             // Clear interrupt flag

      switch(rx)
   {
case 'a':
key = 0x04;
IN_PACKET =key;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
SendPacket (0);
break;
case 'b':
key = 0x05;
IN_PACKET = key;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
SendPacket (0);

break;
case 'c':
key = 0x06;
IN_PACKET = key;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
SendPacket (0);
break;
case 'd':
key = 0x07;
IN_PACKET = key;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
SendPacket (0);
break;
case 'e':
key = 0x08;
IN_PACKET = key;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
SendPacket (0);
break;
case 'f':
key = 0x09;
IN_PACKET = key;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
SendPacket (0);
break;
case 'g':
key = 0x0A;
IN_PACKET = key;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
SendPacket (0);
break;
case 'h':
key = 0x0B;
IN_PACKET = key;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
SendPacket (0);
break;
case 'i':
key = 0x0C;
IN_PACKET = key;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
SendPacket (0);
break;
case 'j':
key = 0x0D;
IN_PACKET = key;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
SendPacket (0);
break;
case 'k':
key = 0x0E;
IN_PACKET = key;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
SendPacket (0);
break;
case 'l':
key = 0x0F;
IN_PACKET = key;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
SendPacket (0);
break;
case 'm':
key = 0x10;
IN_PACKET = key;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
SendPacket (0);
break;
case 'n':
key = 0x11;
IN_PACKET = key;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
SendPacket (0);
break;
case 'o':
key = 0x12;
IN_PACKET = key;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
SendPacket (0);
break;
case 'p':
key = 0x13;
IN_PACKET = key;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
SendPacket (0);
break;
case 'q':
key = 0x14;
IN_PACKET = key;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
SendPacket (0);
break;
case 'r':
key = 0x15;
IN_PACKET = key;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
SendPacket (0);
break;
case 's':
key = 0x16;
IN_PACKET = key;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
SendPacket (0);
break;
case 't':
key = 0x17;
IN_PACKET = key;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
SendPacket (0);
break;
case 'u':
key = 0x18;
IN_PACKET = key;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
SendPacket (0);
break;
case 'v':
key = 0x19;
IN_PACKET = key;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
SendPacket (0);
break;
case 'w':
key = 0x1A;
IN_PACKET = key;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
SendPacket (0);
break;
case 'x':
key = 0x1B;
IN_PACKET = key;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
SendPacket (0);
break;
case 'y':
key = 0x1C;
IN_PACKET = key;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
SendPacket (0);
break;
case 'z':
key = 0x1D;
IN_PACKET = key;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
SendPacket (0);
break;
case 'A':
key = 0x04;
IN_PACKET = 0x20;
IN_PACKET = key;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
SendPacket (0);
break;
case 'B':
key = 0x05;
IN_PACKET = 0x20;
IN_PACKET = key;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
SendPacket (0);
break;
case 'C':
key = 0x06;
IN_PACKET = 0x20;
IN_PACKET = key;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
SendPacket (0);
break;
case 'D':
key = 0x07;
IN_PACKET = 0x20;
IN_PACKET = key;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
SendPacket (0);
break;
case 'E':
key = 0x08;
IN_PACKET = 0x20;
IN_PACKET = key;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
SendPacket (0);
break;
case 'F':
key = 0x09;
IN_PACKET = 0x20;
IN_PACKET = key;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
SendPacket (0);
break;
case 'G':
key = 0x0A;
IN_PACKET = 0x20;
IN_PACKET = key;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
SendPacket (0);
break;
case 'H':
key = 0x0B;
IN_PACKET = 0x20;
IN_PACKET = key;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
SendPacket (0);
break;
case 'I':
key = 0x0C;
IN_PACKET = 0x20;
IN_PACKET = key;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
SendPacket (0);
break;
case 'J':
key = 0x0D;
IN_PACKET = 0x20;
IN_PACKET = key;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
SendPacket (0);
break;
case 'K':
key = 0x0E;
IN_PACKET = 0x20;
IN_PACKET = key;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
SendPacket (0);
break;
case 'L':
key = 0x0F;
IN_PACKET = 0x20;
IN_PACKET = key;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
SendPacket (0);
break;
case 'M':
key = 0x10;
IN_PACKET = 0x20;
IN_PACKET = key;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
SendPacket (0);
break;
case 'N':
key = 0x11;
IN_PACKET = 0x20;
IN_PACKET = key;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
SendPacket (0);
break;
case 'O':
key = 0x12;
IN_PACKET = 0x20;
IN_PACKET = key;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
SendPacket (0);
break;
case 'P':
key = 0x13;
IN_PACKET = 0x20;
IN_PACKET = key;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
SendPacket (0);
break;
case 'Q':
key = 0x14;
IN_PACKET = 0x20;
IN_PACKET = key;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
SendPacket (0);
break;
case 'R':
key = 0x15;
IN_PACKET = 0x20;
IN_PACKET = key;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
SendPacket (0);
break;
case 'S':
key = 0x16;
IN_PACKET = 0x20;
IN_PACKET = key;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
SendPacket (0);
break;
case 'T':
key = 0x17;
IN_PACKET = 0x20;
IN_PACKET = key;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
SendPacket (0);
break;
case 'U':
key = 0x18;
IN_PACKET = 0x20;
IN_PACKET = key;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
SendPacket (0);
break;
case 'V':
key = 0x19;
IN_PACKET = 0x20;
IN_PACKET = key;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
SendPacket (0);
break;
case 'W':
key = 0x1A;
IN_PACKET = 0x20;
IN_PACKET = key;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
SendPacket (0);
break;
case 'X':
key = 0x1B;
IN_PACKET = 0x20;
IN_PACKET = key;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
SendPacket (0);
break;
case 'Y':
key = 0x1C;
IN_PACKET = 0x20;
IN_PACKET = key;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
SendPacket (0);
break;
case 'Z':
key = 0x1D;
IN_PACKET = 0x20;
IN_PACKET = key;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
SendPacket (0);
break;
case '1':
key = 0x1E;
IN_PACKET = key;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
SendPacket (0);
break;
case '2':
key = 0x1F;
IN_PACKET = key;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
SendPacket (0);
break;
case '3':
key = 0x20;
IN_PACKET = key;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
SendPacket (0);
break;
case '4':
key = 0x21;
IN_PACKET = key;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
SendPacket (0);
break;
case '5':
key = 0x22;
IN_PACKET = key;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
SendPacket (0);
break;
case '6':
key = 0x23;
IN_PACKET = key;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
SendPacket (0);
break;
case '7':
key = 0x24;
IN_PACKET = key;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
SendPacket (0);
break;
case '8':
key = 0x25;
IN_PACKET = key;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
SendPacket (0);
break;
case '9':
key = 0x26;
IN_PACKET = key;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
SendPacket (0);
break;
case '0':
key = 0x27;
IN_PACKET = key;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
SendPacket (0);
break;
case '.':
key = 0x37;
IN_PACKET = key;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
SendPacket (0);
break;
case ',':
key = 0x36;
IN_PACKET = key;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
SendPacket (0);
break;
case '-':
key = 0x2D;
IN_PACKET = key;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
SendPacket (0);
break;
case '+':
key = 0x2E;
IN_PACKET = 0x02;
IN_PACKET = key;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
SendPacket (0);
break;
case ' ':
key = 0x2C;
IN_PACKET = key;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
SendPacket (0);
break;
case ':':
key = 0x33;
IN_PACKET = 0x02;
IN_PACKET = key;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
SendPacket (0);
break;
case 0x0d:
key = 0x58;
IN_PACKET = key;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
SendPacket (0);
break;
default:
   IN_PACKET =0;
   IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
SendPacket (0);
   break;
   }
}
}

zzh90513 发表于 2012-8-21 06:55:07

自己抢个沙发

zzh90513 发表于 2012-8-21 08:28:20

再顶一下

jetli 发表于 2012-8-21 09:36:28

把工程整个打包rar上来 {:sweat:}

zzh90513 发表于 2012-8-21 09:41:41

jetli 发表于 2012-8-21 09:36 static/image/common/back.gif
把工程整个打包rar上来

attach://Keyboard.zip

谢谢，帮忙看看哈

zzh90513 发表于 2012-8-21 09:43:12

jetli 发表于 2012-8-21 09:36 static/image/common/back.gif
把工程整个打包rar上来

已经上传了

jetli 发表于 2012-8-21 10:13:50

试着做这样的测试，【调试程序的排除法】

1、接收到一个字符后，强制进入一个死循环例如某LED闪。
2、如果还会有，重复字符重发，说明是中断出现了循环。
3、再屏蔽此中断
、、、

amazing030 发表于 2013-3-25 16:42:25

zzh90513 发表于 2012-8-21 09:43 static/image/common/back.gif
已经上传了

不知道你的问题解决没？我最近用321做个东西也是重复发码，还没找到问题

xi416547162 发表于 2013-7-11 09:00:24

本帖最后由 xi416547162 于 2013-7-11 09:02 编辑

应该是没发断码，相当于电脑认为按键按下未释放，不知道usb键盘里有没有这说法？

and001 发表于 2014-8-5 18:22:48

zzh90513 发表于 2012-8-21 09:41
attach://Keyboard.zip

谢谢，帮忙看看哈

兄弟：

你的程序搞好了吗？我也是用C8051F340模拟枚举USB键盘，可是到 SEF CONFIG 命令后失败！有没好的方法？

and001 发表于 2014-8-17 10:23:32

本帖最后由 and001 于 2014-8-17 10:46 编辑

兄弟搞好那个重复问题没？我等你的答案呀？好像是USB重复发，？？？

我看你的解决办法是空闲的时候发“0”，对吧？
// IN_PACKET = key;
// IN_PACKET =0;
// IN_PACKET =0;
// IN_PACKET =0;
// IN_PACKET =0;
// IN_PACKET =0;
// SendPacket (0);
// break;
default:
   IN_PACKET =0;
   IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
IN_PACKET =0;
SendPacket (0);
   break;

   }
// }

}

zzh90513 发表于 2014-8-18 10:33:50

and001 发表于 2014-8-17 10:23
兄弟搞好那个重复问题没？我等你的答案呀？好像是USB重复发，？？？

我看你的解决办法是空闲的时候发“0” ...

发送0代表释放按键，“按下”和“弹起”必须成对出现，要不然就是“连按”

and001 发表于 2014-8-18 10:41:51

zzh90513 发表于 2014-8-18 10:33
发送0代表释放按键，“按下”和“弹起”必须成对出现，要不然就是“连按” ...

非常感谢！我也已经实现用C8051F340实现USB键盘模拟功能！
想顺便问问：兄弟现在搞啥项目？

and001 发表于 2014-8-18 22:13:12

zzh90513 发表于 2014-8-18 10:33
发送0代表释放按键，“按下”和“弹起”必须成对出现，要不然就是“连按” ...

当前想用内部的晶体（默认为12MHz）

如下操作：
#define SYS_INT_OSC    0x00    // Select to use internal oscillator
#define SYS_EXT_OSC    0x01    // Select to use an external oscillator
#define SYS_4X_DIV_2    0x02
先#define _USB_LOW_SPEED_ // 让它直接用内部时钟，其他都不修改

void Sysclk_Init (void)
{
#ifdef _USB_LOW_SPEED_

OSCICN |= 0x03;                   // Configure internal oscillator for 内部时钟不分频
                                    // its maximum frequency and enable
                                    // missing clock detector

   CLKSEL= SYS_INT_OSC;          // Select System clock --用内部时钟
            CLKSEL |= USB_INT_OSC_DIV_2;    // Select USB clock---系统时钟2分频给USB用--6MHz
#else
OSCICN |= 0x03;                   // Configure internal oscillator for
                                    // its maximum frequency and enable
                                    // missing clock detector

CLKMUL= 0x00;                   // Select internal oscillator as
                                    // input to clock multiplier

CLKMUL |= 0x80;                   // Enable clock multiplier
CLKMUL |= 0xC0;                   // Initialize the clock multiplier
Delay();                         // Delay for clock multiplier to begin

while(!(CLKMUL & 0x20));          // Wait for multiplier to lock
CLKSEL= SYS_INT_OSC;          // Select system clock
CLKSEL |= USB_4X_CLOCK;          // Select USB clock
#endif/* _USB_LOW_SPEED_ */
}

就好像枚举都不成功了，请问我这样有什么问题、。？？

zzh90513 发表于 2014-8-18 22:31:10

and001 发表于 2014-8-18 22:13
当前想用内部的晶体（默认为12MHz）

我前面上传了工程，对照下

and001 发表于 2014-8-18 23:05:33

zzh90513 发表于 2014-8-18 22:31
我前面上传了工程，对照下

谢谢！我弄错了，应该已经是内部时钟了，只是为什么是全速USB呢？好像键盘和鼠标都应该是低速的吗？

zzh90513 发表于 2014-8-19 14:11:07

and001 发表于 2014-8-18 23:05
谢谢！我弄错了，应该已经是内部时钟了，只是为什么是全速USB呢？好像键盘和鼠标都应该是低速的吗？ ...

全速，低速代表传输速度，跟什么设备没关系

and001 发表于 2014-8-19 14:14:01

我定义成低速完全跑不起来？是不是HID设备枚举里面已经有参数默认成全速？

#define _USB_LOW_SPEED_ 后不能枚举？？

zzh90513 发表于 2014-8-19 21:07:29

and001 发表于 2014-8-19 14:14
我定义成低速完全跑不起来？是不是HID设备枚举里面已经有参数默认成全速？

#define _USB_LOW_SPEED_ 后不 ...

枚举过程里面变量需要修改

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求助：用C8051F320模拟USB键盘键码重发问题