[LPC11U68自设实验板]三、1路计数器，1路脉冲输出，2路ADC，2...

zhjb1 · 发表于 2018-1-18 10:10:22

经过前期的折腾，LPC ContexM0有点明白了，借助简单的mbed工程设置了1路计数器，1路脉冲输出，2路ADC，2路PWM，5路中断输入——其中的1路作为超声波测距使用，见照片31。mbed写代码非常简单、具体如下：

6903.h：
//7X5PCB
DigitalOut dat(P2_23);
DigitalOut clk(P2_22);
DigitalOut reg(P2_21);
DigitalOut res(P2_20);
//6903 102X64LCD
const unsigned char asc2[][6]={//8x6 Dots 0-40
{0x00,0x3E,0x45,0x49,0x51,0x3E},//0
{0x00,0x00,0x21,0x7F,0x01,0x00},//1
{0x00,0x31,0x43,0x45,0x49,0x31},//2
{0x00,0x22,0x49,0x49,0x49,0x36},//3
{0x00,0x04,0x0C,0x14,0x7F,0x04},//4
{0x00,0x72,0x51,0x51,0x51,0x4E},//5-5
{0x00,0x3E,0x49,0x49,0x49,0x06},//6
{0x00,0x40,0x43,0x4C,0x50,0x60},//7
{0x00,0x36,0x49,0x49,0x49,0x36},//8
{0x00,0x30,0x48,0x48,0x48,0x3F},//9
{0x00,0x1F,0x24,0x64,0x24,0x1F},//A-10
{0x00,0x41,0x7F,0x49,0x49,0x36},//B
{0x00,0x3E,0x41,0x41,0x41,0x22},//C
{0x00,0x41,0x7F,0x41,0x41,0x3E},//D
{0x00,0x41,0x7F,0x49,0x49,0x63},//E
{0x00,0x41,0x7F,0x49,0x5C,0x60},//F-15
{0x00,0x3E,0x41,0x45,0x47,0x24},//G
{0x41,0x7F,0x08,0x08,0x08,0x7F},//H
{0x00,0x00,0x41,0x7F,0x41,0x00},//I
{0x00,0x42,0x41,0x7F,0x40,0x40},//J
{0x00,0x41,0x7F,0x59,0x24,0x43},//K-20
{0x00,0x40,0x7F,0x41,0x01,0x03},//L
{0x00,0x7F,0x20,0x1E,0x20,0x7F},//M
{0x00,0x7F,0x30,0x18,0x06,0x7F},//N
{0x00,0x3E,0x41,0x41,0x41,0x3E},//O
{0x00,0x41,0x7F,0x49,0x48,0x30},//P-25
{0x00,0x3E,0x41,0x47,0x42,0x3D},//Q
{0x00,0x41,0x7F,0x49,0x4C,0x33},//R
{0x00,0x32,0x49,0x49,0x49,0x26},//S
{0x00,0x60,0x41,0x7F,0x41,0x60},//T
{0x00,0x7E,0x01,0x01,0x01,0x7E},//U-30
{0x00,0x7C,0x02,0x01,0x02,0x7C},//V
{0x00,0x7C,0x03,0x3C,0x03,0x7C},//W
{0x00,0x43,0x24,0x18,0x24,0x43},//X
{0x00,0x60,0x18,0x07,0x18,0x60},//Y
{0x00,0x63,0x45,0x49,0x51,0x63},//Z-35
{0x00,0x00,0x00,0x01,0x00,0x00},//.
{0x00,0x14,0x14,0x14,0x14,0x14},//=
{0x00,0x08,0x08,0x3E,0x08,0x08},//+
{0x00,0x08,0x08,0x08,0x08,0x08},//-
{0x00,0x00,0x00,0x24,0x00,0x00},//:-40
};
//Write Plus
void wri(void){clk=0;clk=1;}
//a byte data to lcd||dt=data reg=command
void b2l(unsigned char dt,unsigned char command){
unsigned char i;
reg=command;
for(i=0;i<8;i++){
if(dt&0x80) dat=1;else dat=0;
dt=dt<<1;
wri();
}
}
//Set display X,Y
void setXY(unsigned char X,unsigned char Y){
b2l(0x40+Y,0);//column
b2l(0x80+X,0);//row
}
//LCD Clear
void lcdClear(void){
unsigned char t,k;
setXY(0,0);
for(t=0;t<9;t++){for(k=0;k<102;k++){b2l(0x00,1);}}
}
//Display ASCII
void c2l(unsigned char x,unsigned char y,unsigned char c){
unsigned char line;
setXY(x*6,y);
for(line=0;line<6;line++)b2l(asc2[c][line],1);
}
//Initial 6903 LCD model
void lcdInit(void){
res=0;
wait_ms(200);
res=1;
wait_ms(200);
b2l(0x25,0);//00100 PD=1dcOn|=0Dcoff V=0Up|=1Left H==1
wait_ms(5);
b2l(0x15,0);//plus=L000~111=1/6-1/7-1/8-1/9//14=1/7
wait_ms(5);
b2l(0x9C,0);//Set VOP
wait_ms(5);
b2l(0x20,0);//PD=0,V=2,H=0
b2l(0x0C,0);//LCD Set Final
wait_ms(50);
}
//Display ASCII Test
void dispAsc(void){
int i,j,k=0;
for(i=0;i<8;i++){
for(j=0;j<17;j++){
c2l(j,i,k);
if(k>39){k=0;}else{k++;}
}
}
}
//END Files//
mainTest.cpp代码：
#include "mbed.h"
#include "6903.h"
//Never use The P0_10,P0_15,P0_0
//Configuration GPIO 5X7LCD=P2_15,16,17,18
DigitalOut led1(LED1);//LED1=P1_2
DigitalOut plus0(P1_24);//输出脉冲类
AnalogIn adc0(P0_23);//ADC类
AnalogIn adc1(P0_13);
PwmOut pwm0(P2_2);//PWM类
PwmOut pwm1(P2_16);
Ticker tick;//Ticker类
Timer timer;//时钟类
DigitalIn inPut0(P0_11);//5个输入口类
DigitalIn inPut1(P0_12);
DigitalIn inPut2(P0_14);
DigitalIn inPut3(P0_16);
DigitalIn inPut4(P0_17);
InterruptIn plusIn11(P0_11);//5个输入口为中断输入类
InterruptIn plusIn12(P0_12);
InterruptIn plusIn14(P0_14);
InterruptIn plusIn16(P0_16);
InterruptIn plusIn17(P0_17);
//Serial outPrt(USBTX,USBRX);//P0_19,P0_18
void dispBase(void);
void dispMes(void);
int16_t pj11=0,pj12=0,pj14=0,pj16=0,pj17=0,ps11,ps12,ps14,ps16,ps17,mms=0;
int32_t js;
float val0,val1,dut0=0.95,dut1=0.96,ddt0=0.01,ddt1=0.008,begin,end,dist=10.1f;
void myTick(){plus0=!plus0;}//Tick产生500Hz脉冲
void PlusIn11(void){wait(0.001f);if(P0_11)ps11++;}//中断输入计数
void PlusIn12(void){wait(0.001f);if(P0_12)ps12++;}
void PlusIn14(void){wait(0.001f);if(P0_14)ps14++;}
void PlusIn16(void){wait(0.001f);if(P0_16)ps16++;}
void PlusIn17(void){//脉冲计数
timer.start();
begin=timer.read_us();
while(plusIn17){;};
end=timer.read_us();
dist=(end-begin)/57;
}
void gpioInit(void){//GPIO定义
pwm0.period(0.002f);//pwm0 Period
pwm1.period(0.001f);//pwm1 Period
inPut0.mode(PullNone);//P0_11
inPut1.mode(PullNone);//P0_12
inPut2.mode(PullNone);//P0_14
inPut3.mode(PullNone);//P0_16
}
//MAIN Program
int main(){
int jj=0;
gpioInit();
lcdInit();
lcdClear();
dispBase();//基本LCD显示
tick.attach(&myTick,0.001f);//Tick为1mS
plusIn11.rise(&PlusIn11);//上升沿中断输入
plusIn12.rise(&PlusIn12);
plusIn14.rise(&PlusIn14);
plusIn16.rise(&PlusIn16);
plusIn17.rise(&PlusIn17);
while(1){
val0=adc0.read();//ADC shuru
val1=adc1.read();
if(dut0>0.95f){dut0=0;}//PWM产生
dut0 +=ddt0;pwm0=dut0;
if(dut1>0.96f){dut1=0;}
dut1 +=ddt1;pwm1=dut1;
if(mms>49){pj11=ps11;pj12=ps12;pj14=ps14;pj16=ps16;mms=ps11=ps12=ps14=ps16=0;}else{mms++;}
if(js>9999999) js=0;else js++;
//outPrt.printf("AD0=%f AD1=%f PWM1=%.2f PWM2=%.2f ",val0,val1,dut0,dut1);
if(jj<10){jj++;}else{
jj=0;
led1=!led1;
dispMes();//检测结果显示
}
//wait_ms(10);
}
}
//LCD 6903
void dispBase(void){
c2l(0,0,19);c2l(1,0,28);//JS
c2l(0,1,10);c2l(1,1,0);c2l(8,1,10);c2l(9,1,1);//A0,A1
c2l(0,3,25);c2l(1,3,32);c2l(2,3,1);//PW0
c2l(8,3,25);c2l(9,3,32);c2l(10,3,2);//PW1
c2l(0,4,25);c2l(1,4,19);//PJ
}
void dispMes(void){
c2l(3,0,(js/1000000)%10);c2l(4,0,(js/100000)%10);c2l(5,0,(js/10000)%10);c2l(6,0,(js/1000)%10);
c2l(7,0,(js/100)%10);c2l(8,0,(js/10)%10);c2l(9,0,(js)%10);//c2l(10,0,(js)%10);
c2l(11,0,int(dist/100)%10);c2l(12,0,int(dist/10)%10);c2l(13,0,int(dist)%10);c2l(14,0,36);c2l(15,0,int(dist*10)%10);//c2l(17,2,int(dist*100)%10+16);
c2l(3,1,int(val0*10)%10);c2l(4,1,int(val0*100)%10);c2l(5,1,int(val0*1000)%10);c2l(6,1,int(val0*10000)%10);
c2l(11,1,int(val1*10)%10);c2l(12,1,int(val1*100)%10);c2l(13,1,int(val1*1000)%10);c2l(14,1,int(val1*10000)%10);
c2l(4,3,int((dut0*10))%10);c2l(5,3,int((dut0*100))%10);c2l(6,3,int((dut0*1000))%10);
c2l(12,3,int((dut1*10))%10);c2l(13,3,int((dut1*100))%10);c2l(14,3,int((dut1*1000))%10);
c2l(3,4,(pj11)%10);c2l(5,4,(pj12)%10);c2l(7,4,(pj14)%10);c2l(9,4,(pj16/100)%10);c2l(10,4,(pj16/10)%10);c2l(11,4,(pj16)%10);
}

复制代码

代码就是以上所有的。下载的基础mbed工程是LPC11U68 for Keil的，在其中修改PinName.h以适应自己的开发板上的硬件资源。主要的是提出实验过程的问题：
1. 看PC11U68手册，分别可以有SCTimer0驱动的4路PWM输出和STCimer1的4路PWM输出，在实际实验中，无论选择SCTimeer0或SCTimer1都可以，全部仅1路PWM输出无任何问题，但只要选择了2路PWM输出就会只剩1路有效。本例的PWM分别为SCTimer的P2_2和SCTimer1的P2_16，结果为P2_2没有任何问题，而P2_16在手触摸某区域引脚时才会输出一段时间，有时能维持较长时间有，有事闪几下就没有了，原因不详。
2. 代码中设置Serial串口任何一个都没有问题，但是只要输出命令，例如printf或outPrt.printff则芯片宕机，不动了！

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zhjb1 · 发表于 2018-1-18 16:52:01

自己回复一下，此实验的问题1的PWM2没有输出找到原因了：芯片到PCB的引脚虚焊了——万能表静态量没有问题，拿放大镜仔细观察发现是搭焊，并没有流锡进去，重新焊接后就好了。但UARTx的输出还是有问题，只要设定printf函数，机器就宕了，原因还没有找到。

lgkgkfg · 发表于 2018-1-21 10:55:14

谢谢分享，666666

[原创] [LPC11U68自设实验板]三、1路计数器，1路脉冲输出，2路ADC，2...

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