AM261x MCU+ SDK: ADC SOC Continuous

| AM261x MCU+ SDK 26.00.00 |

ADC SOC Continuous

# Introduction

Example Description : This example converts ADC 1 Channel 0 on all its SOC configurations, essentially achieving full sampling rate on the input signal on the given channel. The ADC clock is prescaled to a factor of 3.

Conversions Diagram

## SOC Configurations

1. ADC_INT1 is set to trigger SOC(0-15).
2. All SOC are set to be triggered only throguh software
3. Sampling window is 17 system clock cycles, the conversion happens for 31 system clock cycles. (each SOC is 49 system clock cycles long). therefore each sample conversion happens in approximately 4MSPS
4. EOC/SOC7 provides INT1.
5. EOC/SOC15 provides INT2.

# External Connections

## AM263PX-CC E2 or AM263X-CC E2 or AM261X-SOM E1

feed analog input on ADC 1 Channel 0 - HSEC connecter pin - 12

## AM263X-CC E1

feed analog input on ADC 1 Channel 0 - HSEC connecter pin - 18

## AM263PX-LP or AM263X-LP or AM261x-LP

feed analog input on ADC 1 Channel 0 - J1/J3 Pin - 24

## Watch Variables

- gAdc1Result0 : the array holds the sampled values of the ADC 1 Channel 0

# Supported Combinations

Parameter | Value
--- | ---
CPU + OS | r5fss0-0 nortos
Toolchain | ti-arm-clang
Board | am261x-som, am261x-lp
Example folder | examples/drivers/adc/adc_soc_continuous/

# Steps to Run the Example

- 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

# See Also

ADC

# Sample Output

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

ADC Soc Continuous Test Started
ADC 1 channel 1 output:
782
770
774
782
785
777
783
777
790
786
787
ADC Soc Continuous Test Passed
All tests have passed!!