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mlx90614

 
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hamid9543



Joined: 31 Jan 2013
Posts: 63

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mlx90614
PostPosted: Thu Jan 31, 2013 5:51 am     Reply with quote
hi to all
I want config mlx90614 in pwm mode:
1) how programing mlx90614 in first program (via 12c or no?)?
2) how write data on eeprom mlx90614 for config pwm mode?
3) can you help me with a sample code?
Notice! I read datasheet and application note carefully.
hardware: pic16f877a
software: ccs compiler
asmboy



Joined: 20 Nov 2007
Posts: 2128
Location: albany ny

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PostPosted: Thu Jan 31, 2013 1:27 pm     Reply with quote
try a search on this site for mlx90* as a start point

have you TRIED to write code for it?

do you have a CIRCUIT that uses it ?

Proteus/Isis or hardware?

school project or real product?
hamid9543



Joined: 31 Jan 2013
Posts: 63

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PostPosted: Fri Feb 01, 2013 12:36 am     Reply with quote
hi
1) I write code for i2c
Code:

#Include <16f877a.H>
#use delay (clock = 20000000)
#Use I2C (master, sda = PIN_C3, scl = PIN_C4)

int8 result1 =0;
int8 result2 =0;
int8 CRC =0;
int16 tempk =0;
float tempC =0.0;

void main (void)
{
   while (TRUE)
   {
      i2c_start ();       
      if (i2c_write (0xB4)==0)    // Melexis Sensor address to send command
      {
          i2c_write (0x07);        // ask sensor data
          i2c_start ();
          i2c_write (0xB5);        // address to read Melexis Sensor
          result1 = i2c_read(1);
          result2 = i2c_read(1);
          tempk = make16 (result2, result1); 
          CRC = i2c_read(0);
      }
      i2c_stop ();
      tempC =(tempk * 0.02)-273;
      delay_ms (500);
   }
}


Hardware is very simple 2 wire & pullup resistor. No model in proteus
and school project
2) I have 4 sensor. I do not know how to set address for 4 sensors.
3) I can not config and write sample code for pwm config.
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