44.2. PPI Parallel ADC example

44.2.1. Overview

This example project shows read data from external parallel ADC by PPI, using asynchronous SRAM interface to access.

The PPI memory address region is 0xF8000000~0xFFFFFFFF, base address should be aligned by 1MB.

44.2.2. Board Setting

External parallel ADC module is required. The tested parallel ADC is MS9280.

44.2.3. Running the example

When the project runs correctly, and the serial port terminal will output the following information:

ppi parallel adc example
adc data: 0xc3
adc data: 0xc2
adc data: 0xc3
adc data: 0xc2
adc data: 0xc2
adc data: 0xc2
adc data: 0xc2
adc data: 0xc2
adc data: 0xc2
adc data: 0xc2
adc data: 0xc2