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原创 cy68013a 自动切换USB1.1/USB2.0 实例

 2011-11-24 18:28  1709 9 9 分类: MCU/ 嵌入式

BOOL DR_SetConfiguration(void) // Called when a Set Configuration command is received

{

if( EZUSB_HIGHSPEED() )

{ // FX2 enumerated at high speed

// SYNCDELAY; //

EP6AUTOINLENH = 0x02; // 0x02,set AUTOIN commit length to 512 bytes

SYNCDELAY; //

EP6AUTOINLENL = 0x00;

SYNCDELAY;

// enum_high_speed = TRUE;

}

else

{ // FX2 enumerated at full speed

// SYNCDELAY;

EP6AUTOINLENH = 0x00; // set AUTOIN commit length to 64 bytes

SYNCDELAY;

EP6AUTOINLENL = 0x40;

SYNCDELAY;

// enum_high_speed = FALSE;

}

Configuration = SETUPDAT[2];

return(TRUE); // Handled by user code

}

usb cypress cy68013a

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