看我做的AVR单片机以太网项目-step by step 2

sidney_li

看我做的AVR单片机以太网项目-step by step 2 [复制链接]

上周六20060811开始调试RS485/232转TCP开发板，电路板上电一次成功！

1.开始调试串口和RAM！！

sidney_li

串口UART1已经调试通了
源先的PRINTF函数没有办法调用，只好自己写个，已经可以打印HEX数据了！
下面开始测试RAM！
unsigned char  readram(unsigned int iaddr)
{
unsigned char caddl,caddh;
unsigned char cdatatemp=0;

caddl=iaddr&0x00ff;
caddh=(iaddr&0xff00)>>8;
DDRA  = 0xFF;
DDRC  = 0xFF;
RDH;
WRH;
ALEH;
//1 data to addr
PORTA=caddl;
NOP();
ALEL;  //LATCH IT

DDRA  = 0x00;//PORT INPUT

PORTC=caddh;

RDL;
//2 send wr

NOP();

cdatatemp=PINA;
RDH;
return cdatatemp;

}
void writeram(unsigned int iaddr, unsigned char ctemp)
{
unsigned char caddl,caddh;
unsigned char cdatatemp=0;

caddl=iaddr&0x00ff;
caddh=(iaddr&0xff00)>>8;
RDH;
WRH;
ALEH;
//1 写地址到端口A和C
DDRA  = 0xFF;
PORTA=caddl;

ALEL;//锁存A0-A7

DDRC  = 0xFF;
PORTC=caddh;

//数据到端口A
PORTA=ctemp;


WRL;//写信号
//2 send wr
NOP();
WRH;
return ;

}

void main(void)
{
unsigned int k=0;
init_devices();
//for(k=0;k<100;k++)sendchar1(0x55);
sendstring1("init system ok!
");
// printf("init system ok!
");

  sendstring1("now test system-ram  all is 32k !
");
// test_ram();
for(k=0x1100;k<=0x1200;k++)//90ff
{ sendstring1("addr = ");
      sendinthex1(k);
      sendstring1(" =");
      sendinthex1(readram(k));
      sendstring1("
");
}

sendstring1("---- test system-ram  end!
");

sendstring1("now test rtl8019as!
");
// test_net();
sendstring1("----test rtl8019as end!
");
}

sidney_li

打印处理函数！！
char char2hex(char t1)
{
if((t1>=00) &&(t1<=0x09))t1=t1+0x30;//'0'--'9'
else
{

if((t1>=0x0a)&&(t1<=0x0f))//'A'--'F'
t1=t1-0x0a+0x61;
}
return t1;
}

void sendinthex1(int c)
{
char temph=0,templ=0;
char t1=0,t2=0;

temph=c/256;
templ=c%256;

t1=(c/256)/16;
//t1=t1>>8;
UDR1 = char2hex(t1);
while(!(UCSR1A & 0x40));
UCSR1A |=0x40;

t1=(c/256)%16;
UDR1 = char2hex(t1);
while(!(UCSR1A & 0x40));
UCSR1A |=0x40;

t2=(c%256)/16;//templ&0xf0;
//t2=t2>>8;
UDR1 = char2hex(t2);
while(!(UCSR1A & 0x40));
UCSR1A |=0x40;

t2=(c%256)%16;//templ&0x0f;
UDR1 = char2hex(t2);
while(!(UCSR1A & 0x40));
UCSR1A |=0x40;

}

void sendchar1(char c) // 发送
{
UDR1 = c;
while(!(UCSR1A & 0x40));
UCSR1A |=0x40;
}

void sendint1( int c) // 发送
{
UDR1 = (c&0xff00)>>8;
while(!(UCSR1A & 0x40));
UCSR1A |=0x40;

UDR1 = c&0xff;
while(!(UCSR1A & 0x40));
UCSR1A |=0x40;

}

void sendstring1(unsigned char * txbuf) // 发送
{
unsigned int j;
for (j = 0; *txbuf; j++, txbuf++)sendchar1(*txbuf);
//for(;*txbuf!='/0';txbuf++)

}

sidney_li

RAM读取错误图片！！

sidney_li

XMCRA = 0x40; //external memory
XMCRB=0X00;

#define txbuf1_head 0x1100
extern unsigned char txbuf1[256];

//define mappings
void mapping_init(void)
{
asm(
  ".area memory(abs)
"
  ".org 0x1100
"
  " _txbuf1:: .blkb 256
"
  ".text
"
);
}

ram 现在可以读了,马上可以测试RAM了!

sidney_li

以下程序的结果是这个汗!!!!!!

//ICC-AVR application builder : 2006-8-14 16:03:08
// Target : M128
// Crystal: 16.000Mhz

//1.debug rs232
//

#include
#include
#include
#include

//MCU时钟频率
#define F_CPU 16000000
//默认的系统BAUD
#define baud 115200

#define MCUBAUD9600 1

//declare memory mapped variables
#define txbuf1_head 0x1100

extern volatile unsigned char txbuf1[28415];
//define mappings
void mapping_init(void)
{

asm(
  ".area memory(abs)
"
  ".org 0x1100
"
  " _txbuf1:: .blkb 28415
"
  ".text
"
);

}

//#define ext_PORT1 ((volatile unsigned char *)0x1100)
//unsigned char *p=(unsigned char *)ext_PORT1;
unsigned char testramtable[4]={0x00,0x55,0xaa,0x00};
//int COM;

void Delay(void)
{

}
void Delay1ms(void)
{
unsigned int  i;

for(i=0;i<=(unsigned int)(16*143-2);i++);
}

void Delayxms(unsigned char ms)
{
unsigned char i;

for(i=0;i<=ms;i++)Delay1ms();
/*
unsigned short delay_count = F_CPU / 4000;
//#ifdef __GNUC__
unsigned short cnt;//volatile
asm ("
"
               "L_dl1%=:
\t"
               "mov %A0, %A2
\t"
               "mov %B0, %B2
"
               "L_dl2%=:
\t"
               "sbiw %A0, 1
\t"
               "brne L_dl2%=
\t"
                                       "dec %1
\t"
                                       "brne L_dl1%=
\t":"=&w" (cnt):"r"(ms),
"r"((unsigned short) (delay_count)) );
//#else
unsigned short delay_cnt = F_CPU/6000;
//unsigned short delay_cnt = 2400; //*KU* for 14.745600 MHz Clock
unsigned short delay_cnt_buffer;

while (ms--) {
                        delay_cnt_buffer = delay_cnt;
                     while (delay_cnt_buffer--);
                  }
                              */
}

//unsigned char  readram(unsigned int iaddr);
void port_init(void);
void watchdog_init(void);
void uart1_init(void);
//void writeram(unsigned int iaddr, unsigned char ctemp);
void test_ram(void);
void test_net(void);
//void sendstring1(unsigned int * txbuf);
char char2hex(char t1)
{
if((t1>=00) &&(t1<=0x09))t1=t1+0x30;//'0'--'9'
else
{

if((t1>=0x0a)&&(t1<=0x0f))//'A'--'F'
t1=t1-0x0a+0x61;
}
return t1;
}

void sendinthex1(int c)
{
char temph=0,templ=0;
char t1=0,t2=0;

temph=c/256;
templ=c%256;

t1=(c/256)/16;
//t1=t1>>8;
UDR1 = char2hex(t1);
while(!(UCSR1A & 0x40));
UCSR1A |=0x40;

sidney_li

t1=(c/256)%16;
UDR1 = char2hex(t1);
while(!(UCSR1A & 0x40));
UCSR1A |=0x40;

t2=(c%256)/16;//templ&0xf0;
//t2=t2>>8;
UDR1 = char2hex(t2);
while(!(UCSR1A & 0x40));
UCSR1A |=0x40;

t2=(c%256)%16;//templ&0x0f;
UDR1 = char2hex(t2);
while(!(UCSR1A & 0x40));
UCSR1A |=0x40;

}

void sendchar1(char c) // 发送
{
UDR1 = c;
while(!(UCSR1A & 0x40));
UCSR1A |=0x40;
}

void sendint1( int c) // 发送
{
UDR1 = (c&0xff00)>>8;
while(!(UCSR1A & 0x40));
UCSR1A |=0x40;

UDR1 = c&0xff;
while(!(UCSR1A & 0x40));
UCSR1A |=0x40;

}

void sendstring1(unsigned char * txbuf) // 发送
{
unsigned int j;
for (j = 0; *txbuf; j++, txbuf++)sendchar1(*txbuf);
//for(;*txbuf!='/0';txbuf++)

}

void port_init(void)
{
//PA AD0-AD7  地址
//PC AD8-AD15
PORTA = 0xFF;
DDRA  = 0xFF;

PORTC = 0xFF; //m103 output only
DDRC  = 0x00;

//PB4 NETRST O

PORTB = 0xFF;
DDRB  = 0x10;

PORTD = 0xFF;
DDRD  = 0x00;
// PE0 RXD0
// PE1 TXD0
// PE4 NET_IRQ  i
// PE5 INFRA_IRQ  i
//
PORTE = 0xFF;
DDRE  = 0x00;

PORTF = 0xFF;
DDRF  = 0x00;

PORTG = 0x1F;
DDRG  = 0x00;
}

//Watchdog initialisation
// prescale: 2048K cycles
void watchdog_init(void)
{
WDR(); //this prevents a timout on enabling
//WDTCR = 0x0F; //WATCHDOG ENABLED - dont forget to issue WDRs
/* reset WDT */

/* Write logical one to WDTOE and WDE */
//WDTCR |= (1< WDTCR=0X18; //现在把WDTCH给关掉了
/* Turn off WDT */
WDTCR = 0x00;
//WDTCR=0X17;

}
//UART0 initialisation
// desired baud rate:115200
// actual baud rate:111111 (3.7%)
// char size: 8 bit
// parity: Disabled
/*
void uart0_init(void)
{
UCSR0B = 0x00; //disable while setting baud rate
UCSR0A = 0x00;
UCSR0C = 0x06;

// UBRRL = (fosc / 16 / (baud + 1)) % 256;
// UBRRH = (fosc / 16 / (baud + 1)) / 256;

UBRR0L = (F_CPU / 16 / (baud + 1)) % 256;//0x03;//0x08; //set baud rate lo
UBRR0H = (F_CPU / 16 / (baud + 1)) / 256;//0x00; //set baud rate hi
UCSR0B = 0x18;//0x98;
}
*/
//UART1 initialisation
// desired baud rate:115200
// actual baud rate:111111 (3.7%)
// char size: 8 bit
// parity: Disabled
void uart1_init(void)
{

sidney_li

#ifdef MCUBAUD9600
// UBRRL = (fosc / 16 / (baud + 1)) % 256;
// UBRRH = (fosc / 16 / (baud + 1)) / 256;
UCSR1B = 0x00; //disable while setting baud rate
UCSR1A = 0x00;
UCSR1C = 0x06;
UBRR1L = 0x67; //set baud rate lo
UBRR1H = 0x00; //set baud rate hi
UCSR1B = 0x18;
#else
UCSR1B = 0x00; //disable while setting baud rate
UCSR1A = 0x00;
UCSR1C = 0x06;
UBRR1L = (F_CPU / 16 / (baud + 1)) % 256;//0x03;//0x08; //set baud rate lo
UBRR1H = (F_CPU / 16 / (baud + 1)) / 256;//0x00; //set baud rate hi
UCSR1B = 0x18;//0x98;
#endif
}
/*
#pragma interrupt_handler int0_isr:2
void int0_isr(void)
{
//external interupt on INT0
}
*/

//call this routine to initialise all peripherals
void init_devices(void)
{
//stop errant interrupts until set up
CLI(); //disable all interrupts
XDIV  = 0x00; //xtal divider
port_init();
  mapping_init();
watchdog_init();
uart1_init();

//External RAM will reside between 8000h - FFFFh.
//There will be 2 wait states for both read and write.

// MCUCR = 0x80;
//EICRA = 0x03; //extended ext ints
//EICRB = 0x00; //extended ext ints
//EIMSK = 0x01;
//TIMSK = 0x00; //timer interrupt sources
//ETIMSK = 0x00; //extended timer interrupt sources
SEI(); //re-enable interrupts
//all peripherals are now initialised




}

sidney_li

/*
unsigned char  readram(unsigned int iaddr)
{
//unsigned char caddl,caddh;
unsigned char cdatatemp=0;

RDH;
WRH;
ALEH;
DDRA  = 0xFF;
DDRC  = 0xFF;
PORTC=iaddr>>8;
PORTA=(unsigned char)iaddr;
NOP();
ALEL;  //LATCH IT
DDRA  = 0x00;//PORT INPUT
RDL;
//2 send wr
NOP();
cdatatemp=PINA;
RDH;
ALEH;
return cdatatemp;

}
void writeram(unsigned int iaddr, unsigned char ctemp)
{
//unsigned char caddl,caddh;
unsigned char cdatatemp=0;

RDH;
WRH;
ALEH;
DDRA  = 0xFF;
DDRC  = 0xFF;
PORTC=iaddr>>8;
PORTA=(unsigned char)iaddr;
ALEL;//锁存A0-A7
WRL;
PORTA=ctemp;
NOP();
WRH;
ALEH;
return;
}

#define RAMSTARTADDR  0X1100
#define RAMENDADDR 0X90FF
#define RAMLEN       32768
// 测试32KRAM
void test_ram(void)
{
//1.首先写RAM 0x55
//2.读RAM是否为0X55，如果不是打印出16BITS地址
//3.写RAM0XAA，
//4.读RAM是否为0XAA，如果不是打印出16BITS地址
//5.测试结束
unsigned char temp;
unsigned int i;

temp =0x55;
//for(i=RAMSTARTADDR;i<=RAMENDADDR;i++)writeram(i,temp);

for(i=RAMSTARTADDR;i<=RAMENDADDR;i++)
{//temp=readram(i);
//if(readram(i)!=0x55)printf("error addr is i=%x
",i);
}

temp =0xaa;
for(i=RAMSTARTADDR;i<=RAMENDADDR;i++);//writeram(i,temp);

for(i=RAMSTARTADDR;i<=RAMENDADDR;i++)
{//temp=readram(i);
//if(readram(i)!=0xaa)printf("error addr is i=%x
",i);
}

sidney_li

}
*/
//测试RTL8019AS
void test_net(void)
{

}

//

void main(void)
{
unsigned int k=0;
unsigned int i=0,j=0;
unsigned char DATA,u;
//COM=1;
  MCUCR = 0x80; // 允许外部并行扩展接口
  init_devices();
  /*
  XMCRA = 0x44; //0x00 external memory
  XMCRB = 0x01; // 释放PC7，作为通用I/O引脚使用
  DDRC = 0xff; // PC7,PC6用于输出，（不影响PC0-PC5地址线）
  PORTC = 0x00; // PC7,PC6输出0，（不影响PC0-PC5地址线）
*/

XMCRA = 0x4A; //external memory
//XMCRB = 0x01; // 释放PC7，作为通用I/O引脚使用
// DDRC = 0xff; // PC7,PC6用于输出，（不影响PC0-PC5地址线）
// PORTC = 0x00; // PC7,PC6输出0，（不影响PC0-PC5地址线）
//printf("this is uart1
");

Delayxms(50);
//for(k=0;k<100;k++)sendchar1(0x55);
sendstring1("init system ok!
");
sendstring1("now test system-ram  all is 32k !
");
for(u=0;u<4;u++)
{

      sendstring1("----now write  ram  ");
      sendinthex1(testramtable);
      sendstring1("
");

      i=0;
      do{
      //       *(p+i)=testramtable;testok
txbuf1=testramtable;
      i++;
      }while(i>0x6eff);

      sendstring1("----write ok
");
      sendstring1("----now check write
");


      k=0x1100;
            i=0;
            do{
               //DATA = *(p+i);test ok
               DATA=txbuf1;
               //if(DATA!=testramtable)

               sendstring1("addr = ");
               sendinthex1(k);
               sendstring1(" =");
               sendinthex1(DATA);
               sendstring1("
");
               k++;i++;
               }while(k<0x1110);
            //0x7fff);

sendstring1("---- test system-ram  end!
");
}
//while(1){}

// sendstring1("now test rtl8019as!
");
// test_net();
//sendstring1("----test rtl8019as end!
");

}

sidney_li

12:38:29> init system ok!
12:38:29> now test system-ram  all is 32k !
12:38:29> ----now write  ram  0000
12:38:29> ----write ok
12:38:29> ----now check write
12:38:29> addr = 1100 =0000
12:38:29> addr = 1101 =006c
12:38:29> addr = 1102 =0082
12:38:29> addr = 1103 =0094
12:38:29> addr = 1104 =006a
12:38:29> addr = 1105 =0080
12:38:29> addr = 1106 =00f0
12:38:29> addr = 1107 =0048
12:38:29> addr = 1108 =0087
12:38:29> addr = 1109 =00c2
12:38:29> addr = 110a =0044
12:38:29> addr = 110b =004a
12:38:29> addr = 110c =0013
12:38:29> addr = 110d =00b0
12:38:29> addr = 110e =0080
12:38:29> addr = 110f =00c3
12:38:29> ---- test system-ram  end!
12:38:29> ----now write  ram  0055
12:38:29> ----write ok
12:38:29> ----now check write
12:38:30> addr = 1100 =0055
12:38:30> addr = 1101 =006c
12:38:30> addr = 1102 =0082
12:38:30> addr = 1103 =0094
12:38:30> addr = 1104 =006a
12:38:30> addr = 1105 =0080
12:38:30> addr = 1106 =00f0
12:38:30> addr = 1107 =0048
12:38:30> addr = 1108 =0087
12:38:30> addr = 1109 =00c2
12:38:30> addr = 110a =0044
12:38:30> addr = 110b =004a
12:38:30> addr = 110c =0013
12:38:30> addr = 110d =00b0
12:38:30> addr = 110e =0080
12:38:30> addr = 110f =00c3
12:38:30> ---- test system-ram  end!
12:38:30> ----now write  ram  00aa
12:38:30> ----write ok
12:38:30> ----now check write
12:38:30> addr = 1100 =00aa
12:38:30> addr = 1101 =006c
12:38:30> addr = 1102 =0082
12:38:30> addr = 1103 =0094
12:38:30> addr = 1104 =006a
12:38:30> addr = 1105 =0080
12:38:30> addr = 1106 =00f0
12:38:30> addr = 1107 =0048
12:38:30> addr = 1108 =0087
12:38:30> addr = 1109 =00c2
12:38:30> addr = 110a =0044
12:38:30> addr = 110b =004a
12:38:30> addr = 110c =0013
12:38:30> addr = 110d =00b0
12:38:30> addr = 110e =0080
12:38:30> addr = 110f =00c3
12:38:30> ---- test system-ram  end!
12:38:30> ----now write  ram  0000
12:38:30> ----write ok
12:38:30> ----now check write
12:38:30> addr = 1100 =0000
12:38:30> addr = 1101 =006c
12:38:30> addr = 1102 =0082
12:38:30> addr = 1103 =0094
12:38:30> addr = 1104 =006a
12:38:30> addr = 1105 =0080
12:38:30> addr = 1106 =00f0
12:38:30> addr = 1107 =0048
12:38:30> addr = 1108 =0087
12:38:30> addr = 1109 =00c2
12:38:30> addr = 110a =0044
12:38:31> addr = 110b =004a
12:38:31> addr = 110c =0013
12:38:31> addr = 110d =00b0
12:38:31> addr = 110e =0080
12:38:31> addr = 110f =00c3
12:38:31> ---- test system-ram  end!

sidney_li

下面主要测试外部RAM和RTL8019的读写！！！
1.外部RAM的测试已经完成

ATEMGA128-16读写外部32KRAM-70NS的完整测试程序!!
http://www2.ouravr.com/bbs/bbs_c ... ge_no=1&bbs_id=1031

2.RTL8019AS读写成功！！！

sidney_li

sidney_li

下面初始化RTL8019AS后再读取寄存器中的值，，以验证写入的正确性！这样就可以正常读写RTL8019AS！！！
1.先调用SHOWREG读取RTL8019AS的寄存器数值；
2.init_net()来初始化RTL8019AS
3.调用SHOWREG读取RTL8019AS的寄存器数值；
4.如果正确，则对RTL8019AS的读写就OK了！！！

sidney_li

sidney_li

看到上述的PAGE3有问题和PAGE2 的数值一样！！
修改代码得到如下串口输出结果！！

sidney_li

红色的代表RTL8019的ID0 和ID1 只有RTL8019AS有的,属于特征代码,读到0X50/0X70代表RTL8019AS复位正常,可以工作!!
绿色部分: 0x6d,0x69,0x72,0x72,0x6f,0x72是我设置的网卡的MAC地址是字符!
//本机MAC和IP设置
static char MYMAC[6] = { 'm','i','r','r','o','r' };

至此UART0/1,外部RAM读写,和网络接口都已经完成,下面开始移植UIP0.9!!!

sidney_li

测试UIP中的 RTL8019.H/.C，检测是否需要参数修改！！
首先建立一个项目，来调用UIP的RTL8019.H/.C

sidney_li

sidney_li

delay.h,delay,c 延时函数
buffer.h,buffer,c 缓冲管理函数
uart128.h,uart128.c 双串口接口函数
global.h 全局变量定义
rtl8019.h,rtl8019.c 网络接口函数
helleworld.c 主程序

看我做的AVR单片机以太网项目-step by step 2 [复制链接]

最新回复

回复楼主的帖子

回复沙发的帖子

RAM读取错误图片！！