Code:
#define F_CPU 12000000UL
#include <avr/io.h>
#include <avr/wdt.h>
#include <avr/interrupt.h> /* for sei() */
#include <util/delay.h> /* for _delay_ms() */
#include <avr/eeprom.h>
#include <avr/pgmspace.h> /* required by usbdrv.h */
#include "usbdrv/usbdrv.h"
#include "usbdrv/oddebug.h" /* This is also an example for using debug macros */
#include "lcd-routines.h"
#define farbe PORTB
#define rot 4
#define gruen 5
#define blau 3
#define SETBIT(ADDRESS,BIT) (ADDRESS |= (1<<BIT))
#define CLEARBIT(ADDRESS,BIT) (ADDRESS &= ~(1<<BIT))
#define FLIPBIT(ADDRESS,BIT) (ADDRESS ^= (1<<BIT))
#define CHECKBIT(ADDRESS,BIT) (ADDRESS & (1<<BIT))
#define WRITEBIT(RADDRESS,RBIT,WADDRESS,WBIT) (CHECKBIT(RADDRESS,RBIT) ? SETBIT(WADDRESS,WBIT) : CLEARBIT(WADDRESS,WBIT))
/* ------------------------------------------------------------------------- */
/* ----------------------------- USB interface ----------------------------- */
/* ------------------------------------------------------------------------- */
PROGMEM const char usbHidReportDescriptor[] = { /* USB report descriptor */
0x06, 0x00, 0xff, // USAGE_PAGE (Generic Desktop)
0x09, 0x01, // USAGE (Vendor Usage 1)
0xa1, 0x02, // COLLECTION (Application)
// Input Report
0x09, 0x01, // Usage ID - vendor defined
0x15, 0x00, // Logical Minimum (0)
0x25, 0xFF, // Logical Maximum (255)
0x75, 0x08, // Report Size (8 bits)
0x95, 0x01, // Report Count (8 fields)
0x81, 0x02, // Input (Data, Variable, Absolute)
// Output report
0x09, 0x01, // Usage ID - vendor defined
0x15, 0x00, // Logical Minimum (0)
0x26, 0xFF, 0x00, // Logical Maximum (255)
0x75, 0x08, // Report Size (8 bits)
0x95, 0x01, // Report Count (8 fields)
0x91, 0x02, // Output (Data, Variable, Absolute)
0xc0 // END_COLLECTION
};
/* The following variables store the status of the current data transfer */
static uchar currentAddress;
static uchar bytesRemaining;
static uchar inbuf[8], outbuf[8], outlen;
/* ------------------------------------------------------------------------- */
/* usbFunctionRead() is called when the host requests a chunk of data from
* the device. For more information see the documentation in usbdrv/usbdrv.h.
*/
uchar usbFunctionRead(uchar *data, uchar len)
{
lcd_clear();
lcd_string("func read");
an(blau, 3);
if(len > bytesRemaining)
len = bytesRemaining;
eeprom_read_block(data, (uchar *)0 + currentAddress, len);
currentAddress += len;
bytesRemaining -= len;
return len;
}
/* usbFunctionWrite() is called when the host sends a chunk of data to the
* device. For more information see the documentation in usbdrv/usbdrv.h.
*/
uchar usbFunctionWrite(uchar *data, uchar len)
{
lcd_clear();
lcd_string("func write");
an(blau, 2);
if(bytesRemaining == 0)
return 1; /* end of transfer */
if(len > bytesRemaining)
len = bytesRemaining;
eeprom_write_block(data, (uchar *)0 + currentAddress, len);
lcd_clear();
lcd_string(data);
an(rot, 1);
currentAddress += len;
bytesRemaining -= len;
return bytesRemaining == 0; /* return 1 if this was the last chunk */
}
/* ------------------------------------------------------------------------- */
usbMsgLen_t usbFunctionSetup(uchar data[8])
{
lcd_clear();
lcd_string("func setup");
an(rot, 1);
usbRequest_t *rq = (void *)data;
lcd_clear();
lcd_string(rq->bRequest);
}
/* ------------------------------------------------------------------------- */
/* ------------------------------------------------------------------------- */
void an(int col, int led)
{
SETBIT(PORTC, led);
SETBIT(PORTB, col);
_delay_ms(90);
CLEARBIT(PORTC, led);
CLEARBIT(PORTB, col);
}
int main(void)
{
DDRC = 0xff;
lcd_init();
SETBIT(DDRB, PB3);
CLEARBIT(DDRB, PB0);
lcd_string("System ready...");
uchar i;
wdt_enable(WDTO_1S);
odDebugInit();
DBG1(0x00, 0, 0);
usbInit();
an(blau, 1);
usbDeviceDisconnect();
i = 0;
while(--i){ /* fake USB disconnect for > 250 ms */
wdt_reset();
_delay_ms(1);
}
usbDeviceConnect();
sei();
DBG1(0x01, 0, 0);
for(;;){ /* main event loop */
DBG1(0x02, 0, 0);
wdt_reset();
usbPoll();
if(usbInterruptIsReady())
{
SETBIT(PORTC, 5);
SETBIT(PORTB, gruen);
inbuf[0] = 'a';
inbuf[1] = 'b';
inbuf[2] = 'c';
inbuf[3] = '\n';
usbSetInterrupt(inbuf, sizeof(inbuf)); //damit lese ich am PC "abc" aus
}
else
{
CLEARBIT(PORTC, 5);
CLEARBIT(PORTB, gruen);
}
}
return 0;
}
In meiner usbconfig.h ist folgends eingestellt:
Code:
#define USB_CFG_IOPORTNAME D
#define USB_CFG_DMINUS_BIT 3
#define USB_CFG_DPLUS_BIT 2
#define USB_CFG_CLOCK_KHZ (F_CPU/12000)
#define USB_CFG_CHECK_CRC 0
#define USB_CFG_HAVE_INTRIN_ENDPOINT 1
#define USB_CFG_HAVE_INTRIN_ENDPOINT3 0
#define USB_CFG_EP3_NUMBER 3
#define USB_CFG_IMPLEMENT_HALT 0
#define USB_CFG_SUPPRESS_INTR_CODE 0
#define USB_CFG_INTR_POLL_INTERVAL 10
#define USB_CFG_IS_SELF_POWERED 1
#define USB_CFG_MAX_BUS_POWER 50
#define USB_CFG_IMPLEMENT_FN_WRITE 1
#define USB_CFG_IMPLEMENT_FN_READ 1
#define USB_CFG_IMPLEMENT_FN_WRITEOUT 0
#define USB_CFG_HAVE_FLOWCONTROL 0
#define USB_CFG_DRIVER_FLASH_PAGE 0
#define USB_CFG_LONG_TRANSFERS 0
#define USB_COUNT_SOF 0
#define USB_CFG_CHECK_DATA_TOGGLING 0
#define USB_CFG_HAVE_MEASURE_FRAME_LENGTH 0
#define USB_USE_FAST_CRC 0
/* -------------------------- Device Description --------------------------- */
#define USB_CFG_VENDOR_ID 0x8f, 0x19 /* = 0x16c0 = 5824 = voti.nl */
#define USB_CFG_DEVICE_ID 0xe9, 0x17 /* obdev's shared PID for HIDs */
#define USB_CFG_DEVICE_VERSION 0x00, 0x01
#define USB_CFG_VENDOR_NAME 'o', 'b', 'd', 'e', 'v', '.', 'a', 't'
#define USB_CFG_VENDOR_NAME_LEN 8
#define USB_CFG_DEVICE_NAME 'D', 'a', 't', 'a', 'S', 't', 'o', 'r', 'e'
#define USB_CFG_DEVICE_NAME_LEN 9
#define USB_CFG_DEVICE_CLASS 0
#define USB_CFG_DEVICE_SUBCLASS 0
#define USB_CFG_INTERFACE_CLASS 3
#define USB_CFG_INTERFACE_SUBCLASS 0
#define USB_CFG_INTERFACE_PROTOCOL 0
#define USB_CFG_HID_REPORT_DESCRIPTOR_LENGTH 33
#define USB_CFG_DESCR_PROPS_DEVICE 0
#define USB_CFG_DESCR_PROPS_CONFIGURATION 0
#define USB_CFG_DESCR_PROPS_STRINGS 0
#define USB_CFG_DESCR_PROPS_STRING_0 0
#define USB_CFG_DESCR_PROPS_STRING_VENDOR 0
#define USB_CFG_DESCR_PROPS_STRING_PRODUCT 0
#define USB_CFG_DESCR_PROPS_STRING_SERIAL_NUMBER 0
#define USB_CFG_DESCR_PROPS_HID 0
#define USB_CFG_DESCR_PROPS_HID_REPORT 0
#define USB_CFG_DESCR_PROPS_UNKNOWN 0
LCD und die LEDs funktionieren alle wunderbar. Nur das 
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