1. Override max clock frequency to a stable value 24 MHz. 2. Use voltage regulator to control the power supply. Signed-off-by: Shiji Yang <yangshiji66@qq.com>
1. Override max clock frequency to a stable value 24 MHz. 2. Use voltage regulator to control the power supply. Signed-off-by: Shiji Yang <yangshiji66@qq.com>