📄 44blib.c
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/************************************************
* NAME : 44BLIB.C *
************************************************/
#include "44b.h"
#include "44blib.h"
#include "def.h"
#include "option.h"
#include <stdarg.h>
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <ctype.h>
#define STACKSIZE 0xa00 //SVC satck size(do not use user stack)
#define HEAPEND (_ISR_STARTADDRESS-STACKSIZE-0x500) // = 0xc7ff000
//SVC Stack Area:0xc(e)7ff000-0xc(e)7ffaff
//***************************************************************************
extern char Image$$RO$$Limit[];
extern char Image$$RO$$Base[];
extern char Image$$RW$$Limit[];
extern char Image$$RW$$Base[];
extern char Image$$ZI$$Limit[];
extern char Image$$ZI$$Base[];
//***************************************************************************
void *mallocPt=Image$$RW$$Limit;
void About_Function(void)
{
Uart_Printf( "\n\t Image$$RO$$Base = %x\n", Image$$RO$$Base );
Uart_Printf( "\t Image$$RO$$Limit = %x\n", Image$$RO$$Limit );
Uart_Printf( "\t Image$$RW$$Base = %x\n", Image$$RW$$Base );
Uart_Printf( "\t Image$$RW$$Limit = %x\n", Image$$RW$$Limit );
Uart_Printf( "\t Image$$ZI$$Base = %x\n", Image$$ZI$$Base );
Uart_Printf( "\t Image$$ZI$$Limit = %x\n", Image$$ZI$$Limit );
Uart_Printf( "\n" );
}
/************************* SYSTEM *************************/
void Delay(int time)
{
int i;
int delayLoopCount=400;
for(;time>0;time--)
for(i=0;i<delayLoopCount;i++);
}
/************************* PORTS ****************************/
void Port_Init(void)
{
// PORT A GROUP
/* BIT 9 8 7 6 5 4 3 2 1 0 */
/* A24 A23 A22 A21 A20 A19 A18 A17 A16 A0 */
/* 1 1 1 1 1 1 1 1 1 1 */
rPCONA = 0x3ff;
// PORT B GROUP
/* BIT 10 9 8 7 6 5 4 3 2 1 0 */
/* /CS5 /CS4 /CS3 /CS2 /CS1 nWBE3 nWBE2 /SRAS /SCAS SCLS SCKE */
/* NC NC RTL8019 USBD12 NV_Flash NC NC Sdram Sdram Sdram Sdram*/
/* 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1 */
rPDATB = 0x7cf;
//PORT C GROUP
//BUSWIDTH=16 */
/* PC15 14 13 12 11 10 9 8 */
/* o o RXD1 TXD1 o o o o */
/* NC NC Uart1 Uart1 NC NC NC NC */
/* 01 01 11 11 01 01 01 00 */
/* PC7 6 5 4 3 2 1 0 */
/* o o o o o o o o */
/* NC NC NC NC NFALE NFCLE NFCE NFRB*/
/* 01 01 01 01 01 01 01 00 */
#ifdef FS44B0_BOARD
rPDATC = 0x0100; //All IO is low, PC8 = 1 LCD-Off, PC9 = 0 BackLight Off
rPCONC = 0xfff5ff54; //0->D12SUSPD, 1~3->LED, 4~7->VD7~VD4, 8->DISPON, 9->BACKLIGHT, 10~13->UART1, 14->RTS0, 15->CTS0
rPUPC = 0x0000; //disable all pull-up
#elif defined ST44B0_BOARD
rPDATC = 0x0300; //All IO is low, PC8 = 1 LCD-Off, PC9 = 1 BackLight Off
rPCONC = 0x0005ff00; //0~3->input, 4~7->VD7~VD4, 8->DISPON, 9->BACKLIGHT, 10~15->input
rPUPC = 0x0000; //disable all pull-up
#else
rPDATC = 0x0100; //All IO is low, PC8 = 1 LCD-Off, PC9 = 0 BackLight Off
rPCONC = 0xfff5ff54; //0->D12SUSPD, 1~3->LED, 4~7->VD7~VD4, 8->DISPON, 9->BACKLIGHT, 10~13->UART1, 14->RTS0, 15->CTS0
rPUPC = 0x0000; //disable all pull-up
#endif
//PORT D GROUP
/* PORT D GROUP(I/O OR LCD) */
/* BIT7 6 5 4 3 2 1 0 */
/* VF VM VLINE VCLK VD3 VD2 VD1 VD0 */
/* 10 10 10 10 10 10 10 10 */
rPCOND= 0xaaaa;
rPUPD = 0x00;
//These pins must be set only after CPU's internal LCD controller is enable
//PORT E GROUP
/* Bit 8 7 6 5 4 3 2 1 0 */
/* ENDLAN LED3 LED2 LED1 LED0 BEEP RXD0 TXD0 CLKOUT */
/* 10 01 01 01 01 01 10 10 11 */
#ifdef FS44B0_BOARD
rPCONE = 0x20828; //0->input, 1 2->TXD0 RXD0, 3 4 6 7->input, 5->beep, 8->CODECLK
rPUPE = 0x000; //disable all pull-up
#elif defined ST44B0_BOARD
rPDATE = 0x70;
rPCONE = 0x15ab; //0->FOUT, 1 2->TXD0 RXD0, 3->beep, 4~6->LED, 7->input, 8->ENDIAN
rPUPE = 0x000; //disable all pull-up
#else
rPCONE = 0x26568; //0->input, 1 2->TXD0 RXD0, 3 4->input, 5->led, 6->buzzer, 7->led, 8->CODECLK
rPDATE = 0x60;
rPUPE = 0x000; //disable all pull-up
#endif
//PORT F GROUP
/* Bit8 7 6 5 4 3 2 1 0 */
/* IISCLK IISDI IISDO IISLRCK Input Input Input IICSDA IICSCL */
/* 100 100 100 100 00 01 01 10 10 */
#ifdef FS44B0_BOARD
rPCONF = 0x24900a; //0 1->IICSCL IICSDA, 2~4->input 5~8->IIS PORT
rPUPF = 0x000; //disable all pull-up
#elif defined ST44B0_BOARD
rPCONF = 0x24000; //0~5->input, 6 7->TXD1 RXD1, 8->input
rPUPF = 0x000; //disable all pull-up
#else
rPCONF = 0x24900a; //0 1->IICSCL IICSDA, 2~4->input 5~8->IIS PORT
rPUPF = 0x000; //disable all pull-up
#endif
//PORT G GROUP
/* BIT7 6 5 4 3 2 1 0 */
/* INT7 INT6 INT5 INT4 INT3 INT2 INT1 INT0 */
/* S3 S4 S5 S6 NIC EXT IDE USB */
/* 11 11 11 11 11 11 11 11 */
rPCONG = 0xff3c; //eint1 is eth interrupt in FS44B0, eint2 for ide
rPUPG = 0x00; //disable all pull-up
// rSPUCR = 0x7; //D15-D0 pull-up disable
rSPUCR = 0x6; //D15-D0 pull-up enable
/*所有的外部硬件中断为低电平触发*/
//rEXTINT = 0x0;
// need for uClinux
// rEXTINT = 0x42; //所有的外部硬件中断为低电平触发, extint0 为下降沿，extint1为上升沿
rEXTINT = (4<<16)|(4<<8)|(4<<4); //EINT1上升沿,EINT2上升沿,EINT4上升沿中断
// rINTCON = 5; // non vector mode, irq enable
// rINTMOD = 0; //all are irq mode
//Define the Non_Cache area
rNCACHBE0=(((Non_Cache_End)>>12)<<16)|((Non_Cache_Start)>>12);
}
static int whichUart=0;
void Uart_Init(int mclk,int baud)
{
int i;
if(mclk==0)
mclk=MCLK;
rUFCON0=0x0; //FIFO disable
rUFCON1=0x0;
rUMCON0=0x0;
rUMCON1=0x0;
//UART0
rULCON0=0x3; //Normal,No parity,1 stop,8 bit
rUCON0=0x245; //rx=edge,tx=level,disable timeout int.,enable rx error int.,normal,interrupt or polling
rUBRDIV0=( (int)(mclk/16./baud + 0.5) -1 );
//UART1
rULCON1=0x3;
rUCON1=0x245;
rUBRDIV1=( (int)(mclk/16./baud + 0.5) -1 );
for(i=0;i<100;i++);
}
void Uart_Select(int ch)
{
whichUart=ch;
}
void Uart_TxEmpty(int ch)
{
if(ch==0)
while(!(rUTRSTAT0 & 0x4)); //wait until tx shifter is empty.
else
while(!(rUTRSTAT1 & 0x4)); //wait until tx shifter is empty.
}
char Uart_Getch(void)
{
if(whichUart==0)
{
while(!(rUTRSTAT0 & 0x1)); //Receive data read
return RdURXH0();
}
else
{
while(!(rUTRSTAT1 & 0x1)); //Receive data ready
return rURXH1;
}
}
char Uart_GetKey(void)
{
if(whichUart==0)
{
if(rUTRSTAT0 & 0x1) //Receive data ready
return RdURXH0();
else
return 0;
}
else
{
if(rUTRSTAT1 & 0x1) //Receive data ready
return rURXH1;
else
return 0;
}
}
void Uart_GetString(char *string)
{
char *string2=string;
char c;
while((c=Uart_Getch())!='\r')
{
if(c=='\b')
{
if( (int)string2 < (int)string )
{
Uart_Printf("\b \b");
string--;
}
}
else
{
*string++=c;
Uart_SendByte(c);
}
}
*string='\0';
Uart_SendByte('\n');
}
int Uart_GetIntNum(void)
{
char str[30];
char *string=str;
int base=10;
int minus=0;
int lastIndex;
int result=0;
int i;
Uart_GetString(string);
if(string[0]=='-')
{
minus=1;
string++;
}
if(string[0]=='0' && (string[1]=='x' || string[1]=='X'))
{
base=16;
string+=2;
}
lastIndex=strlen(string)-1;
if( string[lastIndex]=='h' || string[lastIndex]=='H' )
{
base=16;
string[lastIndex]=0;
lastIndex--;
}
if(base==10)
{
result=atoi(string);
result=minus ? (-1*result):result;
}
else
{
for(i=0;i<=lastIndex;i++)
{
if(isalpha(string[i]))
{
if(isupper(string[i]))
result=(result<<4)+string[i]-'A'+10;
else
result=(result<<4)+string[i]-'a'+10;
}
else
{
result=(result<<4)+string[i]-'0';
}
}
result=minus ? (-1*result):result;
}
return result;
}
void Uart_SendByte(int data)
{
if(whichUart==0)
{
if(data=='\n')
{
while(!(rUTRSTAT0 & 0x2));
Delay(10); //because the slow response of hyper_terminal
WrUTXH0('\r');
}
while(!(rUTRSTAT0 & 0x2)); //Wait until THR is empty.
Delay(10);
WrUTXH0(data);
}
else
{
if(data=='\n')
{
while(!(rUTRSTAT1 & 0x2));
Delay(10); //because the slow response of hyper_terminal
rUTXH1='\r';
}
while(!(rUTRSTAT1 & 0x2)); //Wait until THR is empty.
Delay(10);
rUTXH1=data;
}
}
void Uart_SendString(char *pt)
{
while(*pt)
Uart_SendByte(*pt++);
}
//if you don't use vsprintf(), the code size is reduced very much.
void Uart_Printf(char *fmt,...)
{
va_list ap;
char string[256];
va_start(ap,fmt);
vsprintf(string,fmt,ap);
Uart_SendString(string);
va_end(ap);
}
/************************* GetKey *******************************/
U8 GetKey(void)
{
U8 m = 10 ;
U8 whichkey ;
U8 key ;
rPCONG = rPCONG & (~(0x3f<<10)) ; //PG5,PG6,PG7 is input
while( m-- )
{
if( (rPDATG & 0xe0) != 0xe0 )
{
whichkey = (rPDATG & 0xe0) ;
goto WHICH_KEY ;
}
else
{
whichkey = 0xe0 ;
Delay(100);
}
}
WHICH_KEY:
// if( whichkey != 0xe0 )
// Uart_Printf( "\nwhich key = 0x%x\n", whichkey ) ;
switch( whichkey )
{
case 0xc0:
key = 1; break ;
case 0xa0:
key = 2; break ;
case 0x60:
key = 3; break ;
default :
key = 0xff;
}
while( (rPDATG & 0xe0) != 0xe0 ) ; //等待按键放下
//if( key != 0xff )
//Uart_Printf( "\nkey = 0x%x\n", key ) ;
return key ;
}
/************************* WaitKey *******************************/
U8 WaitKey(void)
{
U8 k;
Uart_Printf( "\nPlease press KEY2/KEY3/KEY4\n" ) ;
while(1)
{
k = GetKey() ;
if( k != 0xff )
{
Uart_Printf( "\nKEY is pressed, go to Next\n" ) ;
return k;
}
}
}
/************************* ledblink *****************************/
#define LED1_ON() (rPDATE |= 0x20)
#define LED2_ON() (rPDATC |= 2)
#define LED3_ON() (rPDATC |= 4)
#define LED4_ON() (rPDATC |= 8)
#define LED1_OFF() (rPDATE &= ~0x20)
#define LED2_OFF() (rPDATC &= ~2)
#define LED3_OFF() (rPDATC &= ~4)
#define LED4_OFF() (rPDATC &= ~8)
void Led_Display(int LedStatus)
{
if(LedStatus&1)
LED1_ON();
else
LED1_OFF();
if(LedStatus&2)
LED2_ON();
else
LED2_OFF();
if(LedStatus&4)
LED3_ON();
else
LED3_OFF();
if(LedStatus&8)
LED4_ON();
else
LED4_OFF();
}
/************************* beep *********************************/
void Beep(U32 freq, U32 ms)
{
rTCON &= ~0xf0000; // clear manual update bit, stop Timer3
rTCFG0 &= ~0xff00; // set Timer 2&3 prescaler 0
rTCFG1 &= ~0xf000; // set Timer 3 MUX 1/16
rTCFG1 |= 0x3000;
rTCNTB3 = MCLK/(2100*16); //if set inverter off, when TCNT2<=TCMP2, TOUT is high, TCNT2>TCMP2, TOUT is low
rTCMPB3 = rTCNTB3>>1; //if set inverter on, when TCNT2<=TCMP2, TOUT is low, TCNT2>TCMP2, TOUT is high
rTCON |= 0x20000; // manual update
rTCON &= ~0x20000; // clear manal update bit
rTCON |= 0xd0000; // auto reload, inverter on, start Timer 2
Delay(ms);
rTCON &= ~0x10000;
}
/************************* PLL ********************************/
void ChangePllValue(int mdiv,int pdiv,int sdiv)
{
rPLLCON=(mdiv<<12)|(pdiv<<4)|sdiv;
}
/************************* General Library **********************/
void * malloc(unsigned nbyte)
/*Very simple; Use malloc() & free() like Stack*/
//void *mallocPt=Image$$RW$$Limit;
{
void *returnPt=mallocPt;
mallocPt= (int *)mallocPt+nbyte/4+((nbyte%4)>0); //to align 4byte
if( (int)mallocPt > HEAPEND )
{
mallocPt=returnPt;
return NULL;
}
return returnPt;
}
void free(void *pt)
{
mallocPt=pt;
}
void Cache_Flush(void)
{
int i,saveSyscfg;
saveSyscfg=rSYSCFG;
rSYSCFG=SYSCFG_0KB;
for(i=0x10004000;i<0x10004800;i+=16)
{
*((int *)i)=0x0;
}
rSYSCFG=saveSyscfg;
}⌨️ 快捷键说明
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