Is this a bug in Simple Library

Jarvan · 2017-05-08 06:05

#include "simpletools.h"  
#include "mstimer.h"


i2c *IQ_I2C;
int main()
{
  i2c_open(IQ_I2C,3,2,1);
  mstime_set(0);
  mstime_start();
  printf("Start:");
    while(mstime_get()<5000)
  {
    pause(500);
    printf("Time:%d\n",mstime_get());
  }
  printf("Close.");
}

the results shows below:

Start:
Time: 0
Time: 0
Time: 0
Time: 0
Time: 0
Time: 0
Time: 0

Dave Hein · 2017-05-08 12:40

Your call to i2c_open is causing the problem. The first parameter is a pointer to an i2c struct. Your pointer is not initialized, and is most likely pointing to location zero. You should declare IQ_I2C as "i2c IQ_I2C", and then call i2c_open with "i2c_open(&IQ_I2C,3,2,1);".

Jarvan · 2017-05-11 02:33

Dave Hein wrote: »

Your call to i2c_open is causing the problem. The first parameter is a pointer to an i2c struct. Your pointer is not initialized, and is most likely pointing to location zero. You should declare IQ_I2C as "i2c IQ_I2C", and then call i2c_open with "i2c_open(&IQ_I2C,3,2,1);".

Thank you, problem solved.

Is this a bug in Simple Library

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