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如何让lp55231的led 灯一直亮着,不要亮一下,灭2-3s,然后再亮,如何循环。

已经有做:

 lp55xx_write(chip, LP5523_REG_ENABLE_LEDS_MSB, 0x01);
lp55xx_write(chip, LP5523_REG_ENABLE_LEDS_LSB, 0xff);

但是依然是闪烁,亮,闪烁,亮,如何循环。

请问还有什么办法?谢谢!