/*
* USB.c
*
* Created: 2013/05/23
* Author: Mostafa Nekooei
*/
#include <avr/io.h>
#include <util/delay.h> // for _delay_ms()
#include <avr/interrupt.h> // for sei()
#include <avr/pgmspace.h> // required by usbdrv.h
#include <avr/wdt.h>
#include "usbdrv.h" // for using USB
#include "oddebug.h" // for using debug macros
#include "a2d.h" // for ADC Converter
uchar i=0;
static uchar Voltage=0;
/* ------------------------------------------------------------------------- */
/* ----------------------------- USB interface ----------------------------- */
/* ------------------------------------------------------------------------- */
uchar usbFunctionSetup(uchar data[8]) {
usbMsgPtr = Voltage;
return 1;
}
/* ------------------------------------------------------------------------- */
/* ----------------------------- ADC interface ----------------------------- */
/* ------------------------------------------------------------------------- */
void GetVoltage()
{
a2dStartConvert();
Voltage=a2dConvert8bit(ADC_CH_ADC0);
}
/* ------------------------------------------------------------------------- */
/* ------------------------------- Main Code ------------------------------- */
/* ------------------------------------------------------------------------- */
int main(void)
{
wdt_enable(WDTO_1S); // Even if you don't use the watchdog, turn it off here. On newer devices, the status of the watchdog (on/off, period) is PRESERVED OVER RESET!
usbInit();
usbDeviceDisconnect(); // enforce re-enumeration, do this while interrupts are disabled!
// fake USB disconnect for > 360 ms
for (i=0;i < 180; i++)
{
wdt_reset();
_delay_ms(2);
}
usbDeviceConnect();
sei();
a2dInit();
// get A2S for channel 0
a2dSetPrescaler(ADC_PRESCALE_DIV64);
a2dSetReference(ADC_REFERENCE_AREF);
a2dSetChannel(ADC_CH_ADC0);
for(;;)
{
wdt_reset();
GetVoltage();
_delay_ms(50);
usbPoll();
}
}
/* ------------------------------------------------------------------------- */
/*
* USB.c
*
* Created: 2013/05/23
* Author: Mostafa Nekooei
*/
#include <avr/io.h>
#include <util/delay.h> // for _delay_ms()
#include <avr/interrupt.h> // for sei()
#include <avr/pgmspace.h> // required by usbdrv.h
#include <avr/wdt.h>
#include "usbdrv.h" // for using USB
#include "a2d.h" // for ADC Converter
uchar i;
unsigned char Voltage[1];
unsigned char VoltageBuffer[1];
/* ------------------------------------------------------------------------- */
/* ----------------------------- ADC interface ----------------------------- */
/* ------------------------------------------------------------------------- */
void GetVoltage()
{
a2dInit();
// get ADC for channel 0
a2dSetReference(ADC_REFERENCE_AVCC);
a2dSetPrescaler(ADC_PRESCALE_DIV64);
Voltage[0] = a2dConvert8bit(ADC_CH_ADC3);
a2dSetChannel(ADC_CH_ADC3);
a2dStartConvert();
if(a2dIsComplete() == 0){
Voltage[0] = a2dConvert8bit(ADC_CH_ADC3);
}
}
/* ------------------------------------------------------------------------- */
/* ----------------------------- USB interface ----------------------------- */
/* ------------------------------------------------------------------------- */
uchar usbFunctionSetup(uchar data[8]) {
if (data[1] == 0x70){ //this is my request
GetVoltage();
VoltageBuffer[0] = Voltage[0];
usbMsgPtr = VoltageBuffer;
return 1; //total bytes stored in usbMsgPtr array
}
return 0;
}
/* ------------------------------------------------------------------------- */
/* ------------------------------- Main Code ------------------------------- */
/* ------------------------------------------------------------------------- */
int main(void)
{
wdt_enable(WDTO_1S); // Even if you don't use the watchdog, turn it off here. On newer devices, the status of the watchdog (on/off, period) is PRESERVED OVER RESET!
usbInit();
usbDeviceDisconnect(); // enforce re-enumeration, do this while interrupts are disabled!
// fake USB disconnect for > 255 ms
for (i=0;i < 255; i++)
{
wdt_reset();
_delay_ms(1);
}
usbDeviceConnect();
sei();
for(;;) // main event loop
{
wdt_reset();
usbPoll();
}
}
#define USB_CFG_VENDOR_ID 0xc0, 0x16 /* = 0x16c0 = 5824 = voti.nl */ #define USB_CFG_DEVICE_ID 0xdc, 0x05 /* = 0x05dc = 1500 */
openDevice(0x16c0, 0x05dc);
if (UDev != null)
{
byte[] Recive = new byte[1]; //size of data phase transfer is 1
UDev.IOControlMessage(
0xc0, //requestType
0x70, //requestNumber
0x00, //wValue : Send states
0x00, //wIndex : not used in this one
Recive, //data phase array : returns Keys states
0); //timeout : optional value
C = System.Convert.ToDouble(Recive[0]);
C = ( C * 5 ) / 255;
C = Math.Round(C, 5);
VoltageTextBox.Text = System.Convert.ToString(C);
}
usbMsgPtr = VoltageBuffer;
if (MyUsbDevice != null)
{
int transferred;
byte[] Recive = new byte[1]; //size of data phase transfer is 1
UsbSetupPacket Setup = new UsbSetupPacket(
0xc0, //requestType
0x70, //request
0x0000, //Value
0x0000, //Index
1 //length
);
MyUsbDevice.ControlTransfer(ref Setup, Recive, 1, out transferred); }
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