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Original question:

PGA460PSM-EVM: Energia code does not compile.

PGA460PSM-EVM: USE SPI PROTOCOL ON PGA460PSM-EVM.

Lacin Tuncer
Intellectual 630 points
Part Number: PGA460PSM-EVM
Other Parts Discussed in Thread: ENERGIA, PGA460, MSP430F5529

Hi there,

I'm using UART protocol now, but I want to use SPI protocol. I'm using demo code that is  "PGA460 Energia Library and Code Example (Version 1.0.9) (Rev. I)". I run the code with Energia and I watched all measured dimensions. But when I select communication mode=3 (SPI), it never measured dimensions, I read "No object" on COM always. My settings as follows. I'm using also MSP430 Launchpad

Why cannot I read correct dimension? What is my fault? I connected MSP430's P3.2 pin to PGA460's SCLK pin, MSP430's P3.0 pin to PGA460's RXD pin, MSP430's P3.1 pin to PGA460's TXD pin. Is it correct? I applied external 7.7V to PGA460's PWR pin.

  • 0
    TI__Mastermind 27950 points

    Hi Lacin,

    The PGA460 Energia library uses the secondary SPI port specific to the MSP430F5529 LaunchPad because the pins used for the primary SPI port are reserved for the PGA460's TCI interface . Here are the required connections for PGA460 SPI --> MSP430F5529 LaunchPad when using the PGA460 Energia library:

    • PGA460_SCLK --> P4.3 (SCK)
    • PGA460_RXD --> P4.1 (MOSI)
    • PGA460_TXD --> P4.2 (MISO)
    • PGA460_GND --> GND on LaunchPad
    • VPWR --> external PSU of 6-28V

    Also, in your sketch's execution input prompt, choose a Clock Divider (MHz) that will result in <=8MHz (i.e. "4=16/16"). The PGA460's SPI mode only supports up to 8MHz, so the "0" option for 16MHz will result in corrupt data.

  • 0 in reply to Akeem Whitehead
    Intellectual 630 points

    Thanks Akeem, you're the best!