TM4C1294NCPDT: About the source code of the peripheral driver that comes with TI-RTOS.

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Part Number: TM4C1294NCPDT
Other Parts Discussed in Thread: EK-TM4C1294XL

We are developing firmware that runs on TI-RTOS using the Tiva C (TM4C1294NCPDT) evaluation board, EK-TM4C1294XL.

As a firmware specification, SPI, I2C, UART, GPIO, ADC must work.
However, the TI-RTOS (Ver2.16.00.08) for Tiva C used here does not have an ADC driver.

Since there is no suitable sample, I am in trouble because I cannot implement the ADC driver.

Please tell me how to implement the ADC driver for Tiva C (TM4C1294NCPDT).

over 3 years ago

0 Ralph Jacobi over 3 years ago

TI__Guru*** 135355 points

Hello,

You would be able to use the TivaWare ADC APIs within your TI-RTOS tasks as needed to make this work, but there is one key factor that you would need to be sure to correctly handle which is ADC interrupts.

If you plan to use interrupts with the ADC peripheral, then these interrupts cannot be registered with IntRegister, but instead they need to be correct registered with the kernel as a HWI.

Please see this post for more details: https://e2e.ti.com/support/microcontrollers/arm-based-microcontrollers-group/arm-based-microcontrollers/f/arm-based-microcontrollers-forum/849627/faq-can-i-update-the-vector-table-with-intregister-when-using-ti-rtos?tisearch=e2e-sitesearch&keymatch=ti-rtos%20vector%20table

As for guidance / example code, I don't have anything else to offer as I don't have an ADC example for TI-RTOS at this time.

Best Regards,

Ralph Jacobi

Arm-based microcontrollers

Arm-based microcontrollers forum

TM4C1294NCPDT: About the source code of the peripheral driver that comes with TI-RTOS.