Shulou(Shulou.com)06/01 Report--

This article mainly introduces "how to use arm9 adc and touch screen". In daily operation, I believe many people have doubts about how to use arm9 adc and touch screen. The editor consulted all kinds of materials and sorted out simple and easy-to-use operation methods. I hope it will be helpful to answer the doubts about "how to use arm9 adc and touch screen". Next, please follow the editor to study!

2440 adc and touchscreen interface block diagram:

Adc has one converter and 8 channels. AIN [3:0] can only be used as an ordinary ad input channel, while AIN [4] / YM, AIN [5] / YP, AIN [6] / XM, AIN [7] / XP can be used as both an ordinary ad channel and a touchscreen interface.

A general ADC function (query method)

# define PRESCALE_EN (1

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.