avr2560_usb.c

AVR2560 Sample C Code

//###
//### AVR 2560 烹钦 Board Sample Code.
//### 
//### 俺惯: 茄惫哪腔磐厚怜 磊悼拳 扁贱评
//###       扁贱评厘 炔犁篮
//### 
//### 老磊: 2009斥 2岿 16老
//###
//### 沥焊: www.hcvelec.com
//###

#include <avr/io.h>
#include <avr/iom2560.h>
#include <stdio.h>
#include <avr/delay.h>

#include "global.h"
#include "uart.h"
#include "../../avrlib/buffer.h"
#include "../../avrlib/rprintf.h"
#include "callbacktimerfunction.h"

#include "usb.h"
#include "usbhal.h"

#define CS_RTL8019AS	(*((volatile unsigned char*)0x3000))

char G_hh[]="AVR2560 Start!\n";

void XBUS_initialize(void) __attribute__ ((naked)) __attribute__ ((section(".init1")));

void XBUS_initialize(void)
{
	//###
	//### Memory Address规侥 Access.
	//### WinAVR 荤侩矫 馆靛矫 Linker Option阑 汲沥且 巴.
	//### [Linker Option 郴侩]
	//### -Wl,--section-start=.data=0x808000,--defsym=__heap_end=0x80ffff
	//###	
	MCUCR=0x00;					//JTAG Diable.
	XMCRA=0xC3;					//Wait-state Select Bit for UpperSector(00b), Wait-state Select Bit for LowerSector(11b),
	XMCRB=0x80;
}

//###
//### System 檬扁拳 Code.
//###
void SystemInit(void)
{
	// Port A initialization Direction=>(1:Out, 0:In)
	PORTA=0x00;
	DDRA=0x00;

	// Port B initialization
	PORTB=0x00;
	DDRB=0x00;

	// Port C initialization
	PORTC=0x00;
	DDRC=0x00;

	// Port D initialization
	PORTD=0x00;
	DDRD=0x00;

	// Port E initialization
	PORTE=0x00;
	DDRE=0x00;

	// Port F initialization
	PORTF=0x00;
	DDRF=0x00;

	// Port G initialization
	PORTG=0x00;
	DDRG=0x00;

	// Port H initialization
	PORTH=0x00;
	DDRH=0x00;

	// Port J initialization
	PORTJ=0x00;
	DDRJ=0x00;

	// Port K initialization
	PORTK=0x00;
	DDRK=0x00;

/*
	// Timer/Counter 0 initialization
	// Clock source: System Clock
	// Clock value: Timer 0 Stopped
	// Mode: Normal top=FFh
	// OC0 output: Disconnected
	ASSR=0x00;
	TCCR0=0x00;
	TCNT0=0x00;
	OCR0=0x00;

	// Timer/Counter 1 initialization
	// Clock source: System Clock
	// Clock value: Timer 1 Stopped
	// Mode: Normal top=FFFFh
	// OC1A output: Discon.
	// OC1B output: Discon.
	// OC1C output: Discon.
	// Noise Canceler: Off
	// Input Capture on Falling Edge
	// Timer 1 Overflow Interrupt: Off
	// Input Capture Interrupt: Off
	// Compare A Match Interrupt: Off
	// Compare B Match Interrupt: Off
	// Compare C Match Interrupt: Off
	TCCR1A=0x00;
	TCCR1B=0x00;
	TCNT1H=0x00;
	TCNT1L=0x00;
	ICR1H=0x00;
	ICR1L=0x00;
	OCR1AH=0x00;
	OCR1AL=0x00;
	OCR1BH=0x00;
	OCR1BL=0x00;
	OCR1CH=0x00;
	OCR1CL=0x00;

	// Timer/Counter 2 initialization
	// Clock source: System Clock
	// Clock value: Timer 2 Stopped
	// Mode: Normal top=FFh
	// OC2 output: Disconnected
	TCCR2=0x00;
	TCNT2=0x00;
	OCR2=0x00;

	// Timer/Counter 3 initialization
	// Clock source: System Clock
	// Clock value: Timer 3 Stopped
	// Mode: Normal top=FFFFh
	// Noise Canceler: Off
	// Input Capture on Falling Edge
	// OC3A output: Discon.
	// OC3B output: Discon.
	// OC3C output: Discon.
	// Timer 3 Overflow Interrupt: Off
	// Input Capture Interrupt: Off
	// Compare A Match Interrupt: Off
	// Compare B Match Interrupt: Off
	// Compare C Match Interrupt: Off
	TCCR3A=0x00;
	TCCR3B=0x00;
	TCNT3H=0x00;
	TCNT3L=0x00;
	ICR3H=0x00;
	ICR3L=0x00;
	OCR3AH=0x00;
	OCR3AL=0x00;
	OCR3BH=0x00;
	OCR3BL=0x00;
	OCR3CH=0x00;
	OCR3CL=0x00;
*/
	// External Interrupt(s) initialization
	// INT0: Off
	// INT1: Off
	// INT2: Off
	// INT3: Off
	// INT4: Off
	// INT5: Off
	// INT6: Off
	// INT7: Off
	EICRA=0x00;
	EICRB=0x00;
	EIMSK=0x00;

	// Timer(s)/Counter(s) Interrupt(s) initialization
	TIMSK0=0x00;
	TIMSK1=0x00;
	TIMSK2=0x00;
	TIMSK3=0x00;
	TIMSK4=0x00;
	TIMSK5=0x00;

	EIMSK=0x00;

	// Analog Comparator initialization
	// Analog Comparator: Off
	// Analog Comparator Input Capture by Timer/Counter 1: Off
	ACSR=0x80;
	//SFIOR=0x00;

	//###
	//### 扁鸥 Register 檬扁拳.
	//###
	PORTE|=0xC0;
	DDRE=0xC2;					//1100 0010
								//|||| ||||
								//|||| |||+-- RXD0
								//|||| ||+--- TXD0
								//|||| |+---- PE2
								//|||| +----- PE3
								//|||+------- USB_INT
								//||+-------- RTL_INT
								//|+--------- SD_nCS
								//+---------- USB_RST
}

//###
//### Interrupt Handler 沥狼.
//###
void Uart0INT(unsigned char c)
{
	uart0SendByte(c);
	switch(c)
	{
		case 'a': DeleteCallBackFunc(12); break;
		case 'b': PauseCallBackFunc(10); break;
		case 'c': RunCallBackFunc(10); break;
	}
}

//###
//### Main Code 沥狼.
//###
int main(void)
{
	SystemInit();
	InitCallBack(1);
	
	uartOpen(__UART0,115200,__8BYTE,__NONE,__1STOP);

	uartSetRxHandler(__UART0,Uart0INT);

	rprintfInit(uart0SendByte);

	rprintfStr(G_hh);

	while(1)
	{
		USB_MgnRoutine();
	}
}