🐞 fix:经绥化项目经理及硬件认可，更改背光频率为1260，应对高温实验没有问题，硬件评估此更改无风险，单板测试可退步认可

Firmware/Source/Component/PowerManagement/PowerManag_user.c

@@ -75,7 +75,7 @@ static void Power_KL30_Init(void)
     Fuel_KL30_Init();
     Data_Voltage_Init();
 //    TimerM_PWM_counter_Output_Init(TIMERM_COUNTER0, 400, 64000000);
-    TimerM_PWM_counter_Output_Init(TIMERM_COUNTER1, 400, 64000000);
+    TimerM_PWM_counter_Output_Init(TIMERM_COUNTER1, 1260, 64000000);
 //    TimerM_PWM_counter_Output_Init(TIMERM_COUNTER0, 400);
 //    TimerM_PWM_counter_Output_Init(TIMERM_COUNTER1, 400);
 //    TimerM_PWM_CH_Output_init(TIMERM_COUNTER0, TIMERM_CHB, ActiveLevel_High);
@@ -132,7 +132,7 @@ static void Power_Wakeup_Init(void)
     Fuel_KL30_Init();
     Data_Voltage_Init();
 //    TimerM_PWM_counter_Output_Init(TIMERM_COUNTER0, 400, 64000000);
-    TimerM_PWM_counter_Output_Init(TIMERM_COUNTER1, 400, 64000000);
+    TimerM_PWM_counter_Output_Init(TIMERM_COUNTER1, 1260, 64000000);
 //	  TimerM_PWM_counter_Output_Init(TIMERM_COUNTER0, 400);
 //    TimerM_PWM_counter_Output_Init(TIMERM_COUNTER1, 400);
 //    TimerM_PWM_CH_Output_init(TIMERM_COUNTER0, TIMERM_CHB, ActiveLevel_High);