Interfacing HMC6343 with MSP430F5438A

AAYUSH GUPTA said:

I am trying to interface...

See: http://www.8052.com/forum/read/160143

I am facing some problems

What problems, exactly, are you facing?

What debugging have you done in an attempt to resolve them?

What was the outcome?

Here are some debugging hints & tips:

http://www.8052.com/faqs/120313

http://www.techonlineindia.com/article/09-09-23/Developing_a_good_bedside_manner.aspx

AAYUSH GUPTA said:

Has anyone done this before.? 

The forum 'Search' facility will answer that question for you:

eg, http://e2e.ti.com/support/microcontrollers/msp43016-bit_ultra-low_power_mcus/f/166/t/95756.aspx

Andy Neil said:

The forum 'Search' facility will answer that question for you:

eg, http://e2e.ti.com/support/microcontrollers/msp43016-bit_ultra-low_power_mcus/f/166/t/95756.aspx

Following is my code. I am not getting any acknowledgement nor any NACK.

#include "msp430.h"

unsigned char Write = 0x32;
unsigned char Read = 0x33;
unsigned char Magre = 0x45;
int txready = 1;

void main()
{
  WDTCTL = WDTHOLD + WDTPW;
  
  P1DIR = 0X03;
  P1OUT = 0X00;
  
  P10SEL = 0XFF;
  
  UCB3CTL1 |= UCSWRST;
  UCB3CTL0 |= UCMST + UCMODE_3 + UCSYNC;
  UCB3CTL1 |= UCSSEL_2;
  
  UCB3BR0 = 12;
  UCB3BR1 = 0;
  
  UCB3I2CSA = Read;
  UCB3CTL1 &= ~UCSWRST;
  
  UCB3IE = UCTXIE;
  _EINT();
  UCB3CTL1 |= UCTXSTT + UCTR; 
  while(1)
  {
    while (UCB3CTL1 & UCTXSTP);
    UCB3CTL1 |= UCTXSTT + UCTR;
     txready = 1;
     _BIS_SR(LPM0_bits); 
  }
}

#pragma vector = USCI_B3_VECTOR
__interrupt void abc()
{
  switch(__even_in_range(UCB3IV,12))
  {
  case 12:
    if(txready)                             
    {
      UCB3TXBUF = Magre;                
      txready--;
      P1OUT ^=0X01;
    }
    else
    {
      UCB3CTL1 |= UCTXSTP;                 
      UCB3IFG &= ~UCTXIFG;
      _BIC_SR_IRQ(LPM0_bits);
    }
    break;
  default:
    break;
  }
}

AAYUSH GUPTA said:

I am not getting any acknowledgement nor any NACK

So, again, what debugging have you done in an attempt to find out why?

I am using IAR Workbench. I checked registers after every statement execution.

AAYUSH GUPTA said:

I am using IAR Workbench.

IAR Workbench is a software tool;  but this is not just a software exercise - what hardware tests/measurements have you done?

http://e2e.ti.com/support/microcontrollers/msp43016-bit_ultra-low_power_mcus/f/166/p/154509/567056.aspx#567056

 I checked registers after every statement execution.

Checked them against what?

Andy Neil said:

hardware tests/measurements

Andy Neil said:

Checked them against what?

AAYUSH GUPTA said:

I have done nothing for that..

Then, clearly, you need to!

Obviously, you will not get any ACK or NACK if the signals are somehow failing or incorrect at the hardware level!

You also need to check all the register settings against the datasheet.

You should also check your code against the examples provided by TI, and any 3rd-party examples that you can find.