1.尝试增大占空比的频率:
onst DBL_PWM_Level_Info DBL_PWM_Level[] =
{
{3300000, {{1800, 60}, {1800, 70}, {1800, 80}, {1800, 90}, {1800, 100}}},
{3180000, {{1800, 60}, {1800, 70}, {1800, 80}, {1800, 90}, {1800, 100}}},
{3500000, {{1800, 40}, {1800, 50}, {1800, 70}, {1800, 90}, {1800, 100}}},
{3700000, {{1800, 30}, {1800, 45}, {1800, 65}, {1800, 85}, {1800, 100}}},
{0xFFFFFFFF, {{1800, 20}, {1800, 45}, {1800, 75}, {1800, 90}, {1800, 100}}}
};
#ifdef __DSH_M986_LCD_BACKLIGHT_BUG__
const DBL_PWM_Level_Info DBL_PWM2_Level[] =
{
{3300000, {{1800, 60}, {1800, 70}, {1800, 80}, {1800, 90}, {1800, 100}}},
{3180000, {{1800, 60}, {1800, 70}, {1800, 80}, {1800, 90}, {1800, 100}}},
{3500000, {{1800, 60}, {1800, 70}, {1800, 80}, {1800, 90}, {1800, 100}}},
{3700000, {{1800, 60}, {1800, 70}, {1800, 80}, {1800, 90}, {1800, 100}}},
{0xFFFFFFFF, {{1800, 20}, {1800, 45}, {1800, 75}, {1800, 90}, {1800, 100}}}
2.换屏;
3.修改背光驱动电路,选择背光驱动IC或者LDO驱动; |