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how can i convert program written in c code to matlab?

Asked by sneha gatla on 6 Aug 2019
Latest activity Answered by Ted Shultz
on 10 Sep 2019
can anyone please help me converting the code
#include<reg51.h>
#define dataport P2
#define adc_input P0
sbit rs = P3^0;
sbit rw = P3^1;
sbit e = P3^2;
sbit wr= P3^3;
sbit rd= P3^4;
sbit intr= P3^5;
void delay(unsigned int);
void lcd_cmd(unsigned char);
void lcd_data(unsigned char);
void lcd_data_string(unsigned char*);
void lcd_init();
void adc_conv();
void adc_read();
void lcd_data_adc(unsigned int);
int num[10];
void main()
{
while(1)
{
dataport=0x00;
adc_input=0xff;
P3=0x00;
lcd_init();
lcd_data_string("TEMPERATURE=");
adc_conv();
adc_read();
lcd_data('C');
delay(50);
}
}
void lcd_init()
{
lcd_cmd(0x01);
delay(1);
lcd_cmd(0x06);
delay(1);
lcd_cmd(0x0e);
delay(1);
lcd_cmd(0x38);
delay(1);
lcd_cmd(0x80);
delay(1);
}
void delay(unsigned int sec )
{
int i ,j ;
for(i=0;i<sec;i++)
for(j=0; j<1275; j++);
}
void lcd_cmd(unsigned char item)
{
dataport=item;
rs= 0;
rw=0;
e=1;
delay(1);
e=0;
return;
}
void lcd_data(unsigned char item)
{
dataport = item;
rs= 1;
rw=0;
e=1;
delay(1);
e=0;
}
void adc_conv()
{
wr = 0;
delay(2);
wr = 1;
while(intr);
delay(2);
intr=1;
}
void adc_read()
{
unsigned int value;
rd = 0;
delay(2);
value=adc_input;
delay(1);
rd=1;
lcd_data_adc(value);
}
void lcd_data_adc(unsigned int i)
{
int p;
int k=0;
while(i>0)
{
num[k]=i%10;
i=i/10;
k++;
}
k--;
for (p=k;p>=0;p--)
{
dataport=num[p]+48;
rw = 0;
rs = 1;
e = 1;
delay(1);
e = 0;
}
}
void lcd_data_string(char *x)
{
while(*x!='\0')
{
lcd_data(*x);
delay(2);
x++;
}
}

  1 Comment

Answers isn't a free consulting service; looks like a pretty straightforward piece of code that could be translated essentially line-by-line. Having the include file would be needed.
ADDENDUM:
Reading the code a little more -- this is actually addressing some piece of hardware...that'll not be something base MATLAB can do--you'll at a minimum need to have a device driver and likely the Instrumentation TB and whether the device is supported you'd have to find out.
I'd guess the more practical way would be to write a mex function to interface to the C code or just spawn a process to run the code as is...

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1 Answer

Answer by Ted Shultz
on 10 Sep 2019

I’ve had a lot of luck translating C code line by line. After I get that working, I go back and hand optimize the code (Loop in particular are ripe for optimization). I don’t know of any automated ways to do this. You should expect your MATLAB to not run as fast as compiled C code.

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