Introduction

This example demostrates how the RTI and ADC to be configured so that the ADC SOC can be triggered from the RTI Events.

Configurations

RTI is configured to generate trigger every 5uS. Refer to the syscfg of the RTI for the configurational details
ADC SOC0 is configured for RTI trigger and generate interrupt at EOC0

App_adcISR

ISR to read ADC SOC0 result and service the interrupt generated at EOC0. App_rtiISR
ISR callback to service RTI interrupt.

Both ISR have a counter to increment on each call. these counters are compared for the validation of the ADC triggers from RTI.

Feed Analog voltages on ADC0_AIN2

The below watch variables can be used to view ADC conversion results.

gAdcResults[] : Digital representation of the voltage sample on pin AIN2 of ADC0, triggered by RTI
gAdcIsrCount : counter for the ADC ISR
gRtiIsrCount : counter for the RTI ISR

Parameter	Value
CPU + OS	r5fss0-0 nortos
Toolchain	ti-arm-clang
Board	am263x-cc, am263x-lp
Example folder	examples/drivers/adc/adc_soc_rti/

When using CCS projects to build, import the CCS project for the required combination and build it using the CCS project menu (see Using SDK with CCS Projects).
When using makefiles to build, note the required combination and build using make command (see Using SDK with Makefiles)
Establish connections as mentioned in External Connections section
Launch a CCS debug session and run the executable, see CCS Launch, Load and Run
Using watch variables, view the ADC conversion results.
View the ADC conversion results in UART console logs

Shown below is a sample output when the application is run,

ADC Triggered by RTI Test Started ...
ADC Triggered by RTI Test Passed
All tests have passed!!