diff --git a/HARDWARE/PID.c b/HARDWARE/PID.c
index 1d54584..97b1770 100644
--- a/HARDWARE/PID.c
+++ b/HARDWARE/PID.c
@@ -63,7 +63,7 @@ void PID_Init()
 	pid.h_base_h = 0;
 
 	pid.hp_l = 9;
-	pid.hi_l = 0.025;
+	pid.hi_l = 0.015;
 	pid.hd_l = 0;
 	pid.h_base_l = 30;
 
@@ -201,12 +201,15 @@ void PID_Calc() // pid calc
 		pid.h_base = pid.h_base_h;
 
 		// if now temp is close to set temp, the heater will be less power
+		// TODO::在外界温度温差比较大（45-22=23度）时，加热功率也可能不够
 		if (pid.set_tem - pid.now_tem < 3) {
 			pid.hp = pid.hp_h * 0.6;
 		}
+		// TODO::在外界温度温差比较大（45-22=23度）时，加热功率不够
 		if (pid.set_tem - pid.now_tem < 1) {
 			pid.hp = pid.hp_h * 0.3;
 		}
+		// TODO::要改成根据外界温度调节参数
 	}
 
 	// l mode
@@ -315,8 +318,8 @@ void PID_Calc() // pid calc
 	} else {
 		// if outer temp is got, we calc pid by outer temp
 		if (abs(pid.out_tem) > 1e-5) {
-			// pid.cp = (pid.out_tem - pid.set_tem) * 0.28;
-			pid.cp = (pid.out_tem - pid.set_tem) * 0.2;
+			pid.cp = (pid.out_tem - pid.set_tem) * 0.28;
+			// pid.cp = (pid.out_tem - pid.set_tem) * 0.2;
 		}
 		// use nagetive error and error diff when calc compressor power
 		int p_c = calc_cp(delta_t, - Error_calc, - DelEk, pid.c_base, pid.cp, pid.ci, pid.cd);