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#include <stdlib.h>
#include <avr/io.h>
#include <stdint.h>
#include <avr/interrupt.h>
#include <inttypes.h>
#include <avr/pgmspace.h>
#include "usbn2mc.h"
#define F_CPU 16000000UL
#include <util/delay.h>
#include "../usbn2mc/main/usbnapi.h"
#include "usbn2mc.h"
#include "common.h"
#include "protocol.h"
#include "wait.h"
#include "io.h"
#include "adc.h"
#include "i2c.h"
#include "spi.h"
#include "pwm.h"
#include "uart.h"
#include "93c46.h"
#include "debug.h"
//#define DEBUG 1
SIGNAL (SIG_INTERRUPT4)
{
USBNInterrupt ();
}
SIGNAL (SIG_UART0_RECV)
{
}
/* internal timer */
SIGNAL (SIG_OVERFLOW0)
{
common_scheduler ();
TCNT0 = octopus.latency_timer;
}
void
USBCommandRX (char *buf)
{
int i;
#ifdef DEBUG
debug_write("get \0");
debug_SendHex(buf[1]);
debug_write("\r\n");
#endif
/* a paket can be max 255 bytes */
if (octopus.long_rx_cmd == 1)
{
#ifdef DEBUG
debug_write("get next\r\n");
#endif
for (i = 0; i < 64; i++)
request[octopus.long_rx_index + i] = buf[i];
octopus.long_rx_index = octopus.long_rx_index + i;
if (octopus.long_rx_index >= octopus.long_rx_bytes)
{
octopus.long_rx_cmd = 0;
USBMessageIn (request);
}
}
else
{
#ifdef DEBUG
debug_write("get and execute\r\n\0");
#endif
octopus.long_rx_index = 0;
for (i = 0; i < 64; i++)
request[octopus.long_rx_index + i] = buf[i];
octopus.long_rx_index = i;
if ((unsigned int) buf[1] < 64)
{
octopus.long_rx_cmd = 0;
USBMessageIn (request);
}
else
{
octopus.long_rx_cmd = 1;
octopus.long_rx_bytes = (unsigned int) buf[1];
}
}
}
/* is called when received data from pc */
void
USBMessageIn (char *buf)
{
octopus.long_index = 0;
octopus.long_running = 0;
STATUS_LED_on;
#ifdef DEBUG
debug_write("parser\r\n\0");
#endif
int check = ((int) buf[0] >> 4) & 0x0F;
switch (check)
{
case 0:
if (buf[0] == CMD_EXTERNAL_DEVICE)
{
switch (buf[2])
{
case CMD_EXTERNAL_93C46:
flash_93c46_parser (buf);
break;
default:
;
}
}
else
common_parser (buf);
break;
case 1:
io_parser (buf);
break;
case 2:
adc_parser (buf);
break;
case 3:
i2c_parser (buf);
break;
case 4:
spi_parser (buf);
break;
case 5:
pwm_parser (buf);
break;
case 6:
uart_parser (buf);
break;
default:
answer[0] = buf[0];
answer[1] = RSP_UNKOWN_CMD;
answer[2] = 0;
CommandAnswer (3);
}
STATUS_LED_off;
}
void
CommandAnswer (unsigned int length)
{
int i;
// if first packet of a lang message
if (length > 64 && octopus.long_running == 0)
{
octopus.long_index = 0;
octopus.long_bytes = length;
octopus.long_running = 1;
length = 64;
}
USBNWrite (FIFOTXC1, FLUSH);
for (i = 0; i < length; i++)
USBNWrite (TXD1, answer[octopus.long_index + i]);
/* control togl bit */
if (octopus.datatogl == 1)
{
USBNWrite (FIFOTXC1, TX_LAST + TX_EN + TX_TOGL);
octopus.datatogl = 0;
}
else
{
USBNWrite (FIFOTXC1, TX_LAST + TX_EN);
octopus.datatogl = 1;
}
}
void
CommandAnswerRest (void)
{
if (octopus.long_running == 1)
{
if (octopus.long_index < octopus.long_bytes)
{
int dif = octopus.long_bytes - octopus.long_index;
octopus.long_index = octopus.long_index + 64;
if (dif > 64)
CommandAnswer (64);
else
{
/* last packet */
CommandAnswer (dif);
octopus.long_running = 0;
}
}
}
}
int
main (void)
{
DDRB = 0xFF;
PORTB = 0xFF;
int interf;
int conf;
STATUS_LED_off;
USBNInit ();
// setup your device
USBNDeviceVendorID (0x1781); // 0x0400 is the number from national
USBNDeviceProductID (0x0c65); // add your product id
USBNDeviceBCDDevice (0x0001); // you can use it as version e.g. version 1.02
char lang[] = { 0x09, 0x04, 0x00 };
_USBNAddStringDescriptor (lang); // language descriptor
/* Attention!!! Descriptors must be a factor of 8 (error in the stack) */
USBNDeviceManufacture ("EmbeddedProjects");
USBNDeviceProduct ("OctopusUSB Interface Converter and I/O Extension");
USBNDeviceSerialNumber ("20081108");
conf = USBNAddConfiguration ();
USBNConfigurationPower (conf, 100);
interf = USBNAddInterface (conf, 0);
USBNAlternateSetting (conf, interf, 0);
/* communication */
USBNAddInEndpoint (conf, interf, 1, 0x01, BULK, 64, 0, &CommandAnswerRest);
USBNAddOutEndpoint (conf, interf, 1, 0x01, BULK, 64, 0, &USBCommandRX);
USBNInitMC ();
octopus.datatogl = 0;
octopus.long_rx_cmd = 0;
/* start usb chip */
USBNStart ();
/* UARTInit2(38400,8,'N',1); */
#ifdef DEBUG
debug_init();
#endif
/* hello world led pattern */
DDRC = 0xFF;
PORTC = 0xAA;
delay_250ms ();
PORTC = 0xD5;
delay_250ms ();
PORTC = 0x80;
// testpin
//PORTB = 0xFF;
//PORTB = 0x00;
while (1);
return 0;
}
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