Motorola USB08 U08USB.C

Designer Reference Manual USB08 Evaluation Board

104 Source Code Files MOTOROLA

Source Code Files

U08USB.C

//===================== ======================== ======================= ========

// File: U08USB.C

// Func: USB Implementa tion Module for USB08 De mo Application

// Ver.: 1.00

// http://hc08web .de/usb08

// Rem.: View/Edit this File with TAB-Size=4

//===================== ======================== ======================= ========

//--------------------- ------------------------ ----------------------- --------

#include "u08usb.h" // Definitions for USB Data Types & Co ns ta nts

#include "u08desc.c" // const USB Descriptor Data

//--------------------- ------------------------ ----------------------- --------

// Source Code Option - set as required by Hard ware!

#define USB_IPUE1 // Internal Pull-up Ena ble

// 1=Enable(use build-in Pull-up Resistor)

// 0=Disable (external Pull-up req ui red)

//-- Variables -------- ------------------------ ----------------------- --------

volatile uchar USB_Stat e;

#define MAX_TXBUF_SIZE 16 // must be 2^x!

volatile uchar TxBuffer [MAX_TXBUF_SIZE];

volatile uchar TxBuf_Rd Idx;

volatile uchar TxBuf_Wr Idx;

#define MAX_RXBUF_SIZE 16 // must be 2^x!

volatile uchar RxBuffer [MAX_RXBUF_SIZE];

volatile uchar RxBuf_Rd Idx;

volatile uchar RxBuf_Wr Idx;

volatile uchar SuspendC ounter;

setup_buffer SetupBuffer;

uchar SetupSize;

uchar * SetupDataPtr;

uchar R0Sequence; // DATA0/1 Flag for EP0 Rx

uchar R2Sequence; // DATA0/1 Flag for EP2 Rx

//--------------------- ------------------------ ----------------------- --------

// Force STALL Condition for EP0 (both IN and OUT)

// as a Response to an invalid SETUP Req ues t

// Flags will be auto-cleared by the next SETUP Token

void forceSTALL() {

UCR3 |= BM_OSTALL0 + BM_ISTALL0;

}