SLAA126B April   2001  – September 2018 MSP430F149 , MSP430F149 , TLC3544 , TLC3544 , TLC3548 , TLC3548

 

  1.   Interfacing the TLC3544 or TLC3548 ADC to the MSP430F149 MCU
    1.     Trademarks
    2. 1 Introduction
    3. 2 TLC3544/48 Evaluation Module
    4. 3 Serial Interface
      1. 3.1 Chip Select (CS)
      2. 3.2 Serial Data Input (SDI)
      3. 3.3 Serial Data Output Pin (SDO)
      4. 3.4 Serial Clock Pin (SCLK)
    5. 4 Control and I/O Pins
      1. 4.1 Conversion Start (CSTART)
      2. 4.2 Frame Sync (FS)
      3. 4.3 End of Conversion/Interrupt (EOC/INT)
      4. 4.4 Device Pinout
    6. 5 ADC Initialization and Operation
      1. 5.1 Initializing the ADC
      2. 5.2 Operating the ADC
      3. 5.3 EOC or INT
    7. 6 MSPF149 Code Example
    8. 7 References

Interfacing the TLC3544 or TLC3548 ADC to the MSP430F149 MCU

The TLC3544 and TLC3548 14-bit serial-output analog-to-digital converters can easily interface to the serial peripheral interface port of many popular microcontrollers. Using the serial port of the TI MSP430F149 MCU, this application report focuses on configuring, sampling, and converting analog data presented to the ADC. The assembly code developed for this application report shows how the EOC/INT pin can be used as an interrupt source to the host processor.

The associated source code is available from http://www.ti.com/lit/zip/slaa126.