diff --git a/firmware/shared_libs/controllers/ctrl_app_types.h b/firmware/shared_libs/controllers/ctrl_app_types.h
index 63a506f..df5de71 100644
--- a/firmware/shared_libs/controllers/ctrl_app_types.h
+++ b/firmware/shared_libs/controllers/ctrl_app_types.h
@@ -3,8 +3,8 @@
 #define FUN_GEN_FOCUS_MAX 6U
 #define PWM_GEN_FOCUS_MAX 4U
 #define MAX_FREQ 1000000U
-#define MAX_VOLT_POS 500
-#define MAX_VOLT_NEG -500
+#define MAX_VOLT_POS 330
+#define MAX_VOLT_NEG 0
 #define MAX_PHAS 360
 #define MAX_DUTY 100
 
diff --git a/firmware/shared_libs/controllers/ctrl_generator.c b/firmware/shared_libs/controllers/ctrl_generator.c
index 8918004..316c5c4 100644
--- a/firmware/shared_libs/controllers/ctrl_generator.c
+++ b/firmware/shared_libs/controllers/ctrl_generator.c
@@ -65,6 +65,7 @@ uint8_t ch_to_gen_ch[CHANNEL_MAX] = {FG_CHAN1, FG_CHAN2, FG_CHAN3, PWM_CHAN1, PW
 void gen_init()
 {
 	ad9833_init(&dds_gen[FG_CHAN1].hdds, &hspi2, DDS1_CS_GPIO_Port, DDS1_CS_Pin);
+	ad9833_setMode(&dds_gen[FG_CHAN1].hdds, MODE_OFF);
 	// ad9833_init(&dds_gen[FG_CHAN2].hdds, &hspi2, DDS2_CS_PORT, DDS2_CS_PIN);
 	// ad9833_init(&dds_gen[FG_CHAN3].hdds, &hspi2, DDS3_CS_PORT, DDS3_CS_PIN);
 
@@ -73,6 +74,7 @@ void gen_init()
 	// ltc2631_init(&dds_gen[FG_CHAN3].hoffs, &hi2c1, 0x02, LTC2631_8BIT, LTC_REF_2V5);
 
 	mcp41x_init(&dds_gen[FG_CHAN1].hampl, &hspi2, AMP1_CS_GPIO_Port, AMP1_CS_Pin, MCP41X_10K);
+	mcp41x_setValue(&dds_gen[FG_CHAN1].hampl, 0);
 	// mcp41x_init(&dds_gen[FG_CHAN1].hampl, &hspi2, AMP2_CS_PORT, AMP2_CS_PIN, MCP41X_10K);
 	// mcp41x_init(&dds_gen[FG_CHAN1].hampl, &hspi2, AMP3_CS_PORT, AMP3_CS_PIN, MCP41X_10K);
 }