AIO-3399J Buy Specs

Uses RK3399 Six-Core ( A72x2+A53x4 ) 64-Bit CPU, up to 2.0Ghz , integrated Quad-Core Mali-T864 GPU. Onboard M.2 PCIe, 4G LTE interface, multiple display interface and serial port. Support Android/Linux/Ubuntu system.

TIMER

Update time：2018-04-16 Views：2104

Introduction

Timer is a programmable timer peripheral. This component is an APB slave device. In RK3399 there are 12 Timers(timer0~timer11), 12 Secure Timers(stimer0~stimer11) in ALIVE and 2 Timers(pmutimer0~pmutimer1) in PMU. We use the Timers(timer0-timer11) clock is 24MHZ and  Timer mode selection have free-running and user-defined count

Timer Usage Flow

time_block

Timer mode selection

User-defined count mode :Timer loads TIMERn_LOAD_COUNT3 and TIMERn_ LOAD_COUNT2 as initial value. When the timer counts up to the value in TIMERn_LOAD_COUNT1 and TIMERn_LOAD_COUNT0, it will not automatically reload the count register. User need to disable timer firstly and follow the programming sequen

In this article:

  • Software config
  • Register and usage