Specifications

Designer Reference Manual USB08 Evaluation Board
108 Source Code Files MOTOROLA
Source Code Files
void handleSETUP() {
UCR0 &= ~BM_RX0E; // Deactivate EP0 Receiver
UIR2 = BM_RXD0FR; // Reset EP0 Receive Flag
SetupBuffer = *(setup_buffer *)(&UE0D0);
if(USR0 != 0x48) { // SETUP Transaction must be DATA0 with Size=8
forceSTALL(); // otherwise we have an Error Condition
}
else { // now we will check the Request Type
if((SetupBuffer.bmRequestType & 0x60) != 0) {
forceSTALL(); // Non-Standard Requests will not be handled!
}
else { // Standard Request Decoder:
switch(SetupBuffer.bRequest) {
case CLEAR_FEATURE: // 1
clearFeature();
break;
case SET_ADDRESS: // 5
setAddress();
break;
case GET_DESCRIPTOR: // 6
getDescriptor();
break;
case SET_CONFIGURATION: // 9
setConfiguration();
break;
default:
forceSTALL();
break;
}
}
}
UCR0 |= BM_RX0E; // Activate EP0 Receiver
}
//----------------------------------------------------------------------------
void handleOUT() {
UCR0 &= ~(BM_RX0E+BM_TX0E); // Deactivate EP0 Receiver + Transmitter
UIR2 = BM_RXD0FR; // Reset EP0 Receive Flag
// OUT Transactions over EP0 appear as Status Stage
// of a Standard Device Request only
UCR0 |= BM_RX0E; // Activate EP0 Receiver
}
//----------------------------------------------------------------------------
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cale Semiconductor,
I
Freescale Semiconductor, Inc.
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