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MSP430FR2475: MSP430FR2475TPT || I2C and PWM Support our GPIO

Jyoti Vaishnav
Prodigy 10 points
Part Number: MSP430FR2475

Tool/software:

Hi TI Team, 

In our design, we are using two MSP430FR2475TPT microcontrollers for communication, the two GPIO pins shared between the two MCUs: P1.2 and P1.3.

I2C Support

According to the datasheet, P1.2 can be configured as I2C_SDA (data line), and P1.3 as I2C_SCL (clock line). One of the microcontrollers will be set up as the master, and the other will be the slave, and we plan to connect both MCUs using I2C. Could you confirm if the MSP430 will support I2C communication on these pins and if they can be used for I2C?

PWM Support

The datasheet also indicates that P1.2 and P1.3 are capable of generating PWM signals. Our plan is to connect MCU1's P1.2 to P1.2 or P1.3 of MCU2, and Vice-versa for the other pins. Could you confirm if these GPIO pins will support PWM output and whether this setup is feasible?

  • 0
    Guru 22025 points

    Table 9-23, Port 1 Pin Functions, would seem to cover everything.

    Except that you seem to want to use one pin for both I2C and PWM on the same device. That would be tricky at best. Best skipped on a part with so many pins and PWM outputs available.

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