📄 44blib.c
字号:
/************************************************
* 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$$RW$$Limit[];
void *mallocPt=Image$$RW$$Limit;
/************************* SYSTEM *************************/
static int delayLoopCount=400;
void Delay(int time)
{
int i,adjust=0;
if(time==0)
{
time=200;
adjust=1;
delayLoopCount=400;
rWTCON=((MCLK/1000000-1)<<8)|(2<<3); //MCLK/1M,Watch-dog disable,1/64,interrupt disable,reset disable
rWTDAT=0xffff;//for first update
rWTCNT=0xffff;//resolution=64us @any MCLK
rWTCON=((MCLK/1000000-1)<<8)|(2<<3)|(1<<5); //Watch-dog timer start
}
for(;time>0;time--)
for(i=0;i<delayLoopCount;i++);
if(adjust==1)
{
rWTCON=((MCLK/1000000-1)<<8)|(2<<3);//Watch-dog timer stop
i=0xffff-rWTCNT; //1count->64us, 200*400 cycle runtime = 64*i us
delayLoopCount=8000000/(i*64); //200*400:64*i=1*x:100 -> x=80000*100/(64*i)
}
}
/************************* PORTS ****************************/
void Port_Init(void)
{
// * Port of Group A Control Registers *.
#define PA9 0 // 0 = Output 1 = ADDR24
#define PA8 1 // 0 = Output 1 = ADDR23
#define PA7 1 // 0 = Output 1 = ADDR22
#define PA6 1 // 0 = Output 1 = ADDR21
#define PA5 1 // 0 = Output 1 = ADDR20
#define PA4 1 // 0 = Output 1 = ADDR19
#define PA3 1 // 0 = Output 1 = ADDR18
#define PA2 1 // 0 = Output 1 = ADDR17
#define PA1 1 // 0 = Output 1 = ADDR16
#define PA0 1 // 0 = Output 1 = ADDR0
rPCONA = (PA9<<9)|(PA8<<8)|(PA7<<7)|(PA6<<6)|(PA5<<5)|(PA4<<4)|(PA3<<3)|(PA2<<2)|(PA1<<1)|PA0;
rPDATA = 0x0;
// * Port of Group B Control Registers *.
#define PB10 1 // 0 = Output 1 = nGCS5
#define PB9 1 // 0 = Output 1 = nGCS4
#define PB8 1 // 0 = Output 1 = nGCS3
#define PB7 1 // 0 = Output 1 = nGCS2
#define PB6 1 // 0 = Output 1 = nGCS1
#define PB5 1 // 0 = Output 1 = nWBE3/nBE3/DQM3
#define PB4 1 // 0 = Output 1 = nWBE2/nBE2/DQM2
#define PB3 1 // 0 = Output 1 = nSRAS/nCAS3
#define PB2 1 // 0 = Output 1 = nSCAS/nCAS2
#define PB1 1 // 0 = Output 1 = SCLK
#define PB0 1 // 0 = Output 1 = SCKE
rPCONB = (PB10<<10)|(PB9<<9)|(PB8<<8)|(PB7<<7)|(PB6<<6)|(PB5<<5)|(PB4<<4)|(PB3<<3)|(PB2<<2)|(PB1<<1)|PB0;
rPDATB = 0x7ff;
// * Port of Group C Control Registers *.
#define PC15 1 // 00 = Input 01 = Output 10 = DATA31 11 = nCTS0
#define PC14 1 // 00 = Input 01 = Output 10 = DATA30 11 = nRTS0
#define PC13 3 // 00 = Input 01 = Output 10 = DATA29 11 = RxD1
#define PC12 3 // 00 = Input 01 = Output 10 = DATA28 11 = TxD1
#define PC11 3 // 00 = Input 01 = Output 10 = DATA27 11 = nCTS1
#define PC10 3 // 00 = Input 01 = Output 10 = DATA26 11 = nRTS1
#define PC9 1 // 00 = Input 01 = Output 10 = DATA25 11 = nXDREQ1
#define PC8 1 // 00 = Input 01 = Output 10 = DATA24 11 = nXDACK1
#define PC7 3 // 00 = Input 01 = Output 10 = DATA23 11 = VD4
#define PC6 3 // 00 = Input 01 = Output 10 = DATA22 11 = VD5
#define PC5 3 // 00 = Input 01 = Output 10 = DATA21 11 = VD6
#define PC4 3 // 00 = Input 01 = Output 10 = DATA20 11 = VD7
#define PC3 1 // 00 = Input 01 = Output 10 = DATA19 11 = IISCLK LED3
#define PC2 1 // 00 = Input 01 = Output 10 = DATA18 11 = IISDI LED2
#define PC1 1 // 00 = Input 01 = Output 10 = DATA17 11 = IISDO LED1
#define PC0 1 // 00 = Input 01 = Output 10 = DATA16 11 = IISLRCK PUDIS12
rPCONC = (PC15<<30)|(PC14<<28)|(PC13<<26)|(PC12<<24)|(PC11<<22)|(PC10<<20)|(PC9<<18)|(PC8<<16)|(PC7<<14)|(PC6<<12)|(PC5<<10)|(PC4<<8)|(PC3<<6)|(PC2<<4)|(PC1<<2)|PC0;
rPDATC = 0x0ffff; // All I/O Is High
rPUPC = ~0x0ff00; // PULL UP RESISTOR should be enabled to I/O
// Port of Group D Control Registers.
#define PD7 2 // 00 = Input 01 = Output 10 = VFRAME 11 = Reserved
#define PD6 2 // 00 = Input 01 = Output 10 = VM 11 = Reserved
#define PD5 2 // 00 = Input 01 = Output 10 = VLINE 11 = Reserved
#define PD4 2 // 00 = Input 01 = Output 10 = VCLK 11 = Reserved
#define PD3 2 // 00 = Input 01 = Output 10 = VD3 11 = Reserved
#define PD2 2 // 00 = Input 01 = Output 10 = VD2 11 = Reserved
#define PD1 2 // 00 = Input 01 = Output 10 = VD1 11 = Reserved
#define PD0 2 // 00 = Input 01 = Output 10 = VD0 11 = Reserved
rPCOND = (PD7<<14)|(PD6<<12)|(PD5<<10)|(PD4<<8)|(PD3<<6)|(PD2<<4)|(PD1<<2)|PD0;
rPDATD = 0xff;
rPUPD = 0x0;
// Port of Group E Control Registers.
#define PE8 2 // 00 = Reserved(ENDIAN) 01 = Output 10 = CODECLK 11 = Reserved
#define PE7 1 // 00 = Input 01 = Output 10 = TOUT4 11 = VD7
#define PE6 1 // 00 = Input 01 = Output 10 = TOUT3 11 = VD6
#define PE5 1 // 00 = Input 01 = Output 10 = TOUT2 11 = TCLK in
#define PE4 1 // 00 = Input 01 = Output 10 = TOUT1 11 = TCLK in
#define PE3 1 // 00 = Input 01 = Output 10 = TOUT0 11 = Reserved
#define PE2 2 // 00 = Input 01 = Output 10 = RxD0 11 = Reserved
#define PE1 2 // 00 = Input 01 = Output 10 = TxD0 11 = Reserved
#define PE0 3 // 00 = Input 01 = Output 10 = Fpllo out 11 = Fout out
rPCONE = (PE8<<16)|(PE7<<14)|(PE6<<12)|(PE5<<10)|(PE4<<8)|(PE3<<6)|(PE2<<4)|(PE1<<2)|PE0;
rPDATE = 0x1ff; // All I/O Is High
rPUPE = 0x06; // PE8 do not have programmable pull-up resistor.
// Port of Group F Control Registers.
#define PF8 4 // 000 = Input 001 = Output 010 = nCTS1 011 = SIOCLK 100 = IISCLK Others = Reserved
#define PF7 4 // 000 = Input 001 = Output 010 = RxD1 011 = SIORxD 100 = IISDI Others = Reserved
#define PF6 4 // 000 = Input 001 = Output 010 = TxD1 011 = SIORDY 100 = IISDO Others = Reserved
#define PF5 4 // 000 = Input 001 = Output 010 = nRTS1 011 = SIOTxD 100 = IISLRCK Others = Reserved
#define PF4 1 // 00 = Input 01 = Output 10 = nXBREQ 11 = nXDREQ0
#define PF3 1 // 00 = Input 01 = Output 10 = nXBACK 11 = nXDACK0
#define PF2 1 // 00 = Input 01 = Output 10 = nWAIT 11 = Reserved
#define PF1 2 // 00 = Input 01 = Output 10 = IICSDA 11 = Reserved
#define PF0 2 // 00 = Input 01 = Output 10 = IICSCL 11 = Reserved
rPCONF = (PF8<<19)|(PF7<<16)|(PF6<<13)|(PF5<<10)|(PF4<<8)|(PF3<<6)|(PF2<<4)|(PF1<<2)|PF0;
rPDATF = 0x1ff; // All I/O Is High
rPUPF = 0x163;
// Port of Group G Control Registers.
#define PG7 3 // 00 = Input 01 = Output 10 = IISLRCK 11 = EINT7
#define PG6 3 // 00 = Input 01 = Output 10 = IISDO 11 = EINT6
#define PG5 3 // 00 = Input 01 = Output 10 = IISDI 11 = EINT5
#define PG4 3 // 00 = Input 01 = Output 10 = IISCLK 11 = EINT4
#define PG3 3 // 00 = Input 01 = Output 10 = nRTS0 11 = EINT3
#define PG2 3 // 00 = Input 01 = Output 10 = nCTS0 11 = EINT2
#define PG1 3 // 00 = Input 01 = Output 10 = VD5 11 = EINT1
#define PG0 3 // 00 = Input 01 = Output 10 = VD4 11 = EINT0
rPCONG = (PG7<<14)|(PG6<<12)|(PG5<<10)|(PG4<<8)|(PG3<<6)|(PG2<<4)|(PG1<<2)|PG0;
rPDATG = 0xff;
rPUPG = 0x00; // should be enabled
// Pull-up Control Register.
#define HZSTOP 1 // 0 = Previous state of PAD 1 = HZ @ stop
#define SPUCR1 1 // 0 = DATA[15:8] port pull-up resistor is enabled 1 = DATA[15:8] port pull-up resistor is disabled
#define SPUCR0 1 // 0 = DATA[7:0] port pull-up resistor is enabled 1 = DATA[7:0] port pull-up resistor is disabled
rSPUCR = (HZSTOP<<2)|(SPUCR1<<1)|SPUCR0;
// External Interrupt Control Register
#define EINT7 2 // 000 = Low level interrupt 001 = High level interrupt
// 01x = Falling edge triggered 10x = Rising edge triggered
// 11x = Both edge triggered
#define EINT6 2 // ...
#define EINT5 2 // ...
#define EINT4 2 // ...
#define EINT3 2 // ...
#define EINT2 2 // ...
#define EINT1 2 // ...
#define EINT0 2 // ...
rEXTINT = (EINT7<<28)|(EINT6<<24)|(EINT5<<20)|(EINT4<<14)|(EINT3<<12)|(EINT2<<8)|(EINT1<<4)|EINT0;
}
/************************* UART ****************************/
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
⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -