chenjianqiang 9f9da9ec96 feat(timer): refator timer group driver ... 1. add hal and low-level layer for timer group 2. add callback functions to handle interrupt 3. add timer deinit function 4. add timer spinlock take function		2019-11-21 14:14:19 +08:00
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driver	feat(timer): refator timer group driver	2019-11-21 14:14:19 +08:00