pwm控制蜂鸣器发出乐音,基于cortex-a8平台，主cpu是s5pc100，开发环境是ubuntu 12.04，linux内核版本是2.6.35-pwm control buzzer tone, cortex-a8-based platform, the main cpu is s5pc100, the development environment is ubuntu 12.04, linux kernel version is 2.6.35

In consumer electronics, telecommunications and industrial electronics, there are often many similarities between seemingly unrelated designs. For example, nearly every system includes: · Some intelligent control, usually a single-chip microcont