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TM4C1290NCPDT: interfaces

Hanno Reimer
Intellectual 1920 points
Part Number: TM4C1290NCPDT
  1. Is it possible to use the M0PWM0,1 and 7 (Pin 6,43,44) to output a 16bit pwm with same frequency but different duty cycle?
  2. Is it possible to measure the time of a period of a input frequency at Pin 86 (T0CCP1)?
  3. ROM Bootloader can be invoked at UART (Pin33/34)?
  4. Can the microcontroller used without a 25 MHz crystal and will be still usable for 230400 Baud UART?
  • 0
    TI__Guru*** 135355 points

    Hello Hanno,

    Hanno Reimer said:
    Is it possible to use the M0PWM0,1 and 7 (Pin 6,43,44) to output a 16bit pwm with same frequency but different duty cycle?

    Yes, this is possible. The same frequency is important but the duty cycle is controlled per channel for each output and it is set by the PWMPulseWidthSet API.

    Hanno Reimer said:
    Is it possible to measure the time of a period of a input frequency at Pin 86 (T0CCP1)?

    I presume this question is to measure the time from one rising edge to the next rising edge (or falling edge to falling edge) as that is what I would consider the period of the signal. So in that case yes that measurement is possible to do with T0CCP1.

    Hanno Reimer said:
    ROM Bootloader can be invoked at UART (Pin33/34)?

    Yes, Pin 33/34 is for UART0 which is the UART that is used by the ROM Bootloader.

    Hanno Reimer said:
    Can the microcontroller used without a 25 MHz crystal and will be still usable for 230400 Baud UART?

    Yes, PIOSC can be used for a clock source, but if the PIOSC is used for the UART baud clock, the system clock frequency must be at least 9 MHz in Run mode.

    Best Regards,

    Ralph Jacobi