ADC SOC Continuous

Table of Contents

• Introduction
  • SOC Configurations
• External Connections
  • AM263PX-CC E2 or AM263X-CC E2
  • AM263X-CC E1
  • AM263PX-LP or AM263X-LP
  • Watch Variables
• Supported Combinations
• Steps to Run the Example
• See Also
• Sample Output

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

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

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	am263x-cc, am263x-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!!