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PGA900: Using embedded Cortex M0 as primary microcontroller

Part Number: PGA900

My PCB space is extremely limited - eliminating a "master" μC would be of great advantage in my application.

I understand the Cortex M0 packaged with the analog front end is intended for custom signal conditioning. 

After looking through the source code for the example firmware, it would appear to me the M0 is fully available for applications beyond just signal conditioning.

The peripherals are understandably limited, only 2 GPIOs, I2C, UART, SPI - more than enough for a signal conditioner.
However this could be enough for me, (2 GPIOs can give me a shift register, I2C can give me a IO expander, etc)

Is there any reason not  to use the PGA as the primary μC in a simple sensor application where PCB space is at an absolute premium?
Have the peripheral interfaces been limited somehow? For example, can I2C be used in both Slave and Master mode?

Thanks!


2 Replies

  • Hmm .... no response, I guess this speaks for itself!

  • In reply to Evan Gifford:

    Hi Evan,

    Yes, it is fully functional as a normal microcontroller provided the limited pins are suitable for your application. There is some sample firmware available in the product folder that may help with your development: www.ti.com/.../toolssoftware

    Regards,

    ____________

    Scott Cummins

    Sensor Signal Conditioning Applications

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