diff --git a/STM32CubeIDE/Release/WLE5CC_NODE_STS.elf b/STM32CubeIDE/Release/WLE5CC_NODE_STS.elf
index ba34634..378b706 100644
Binary files a/STM32CubeIDE/Release/WLE5CC_NODE_STS.elf and b/STM32CubeIDE/Release/WLE5CC_NODE_STS.elf differ
diff --git a/STS/Core/Src/yunhorn_sts_process.c b/STS/Core/Src/yunhorn_sts_process.c
index 43990ef..ecc8821 100644
--- a/STS/Core/Src/yunhorn_sts_process.c
+++ b/STS/Core/Src/yunhorn_sts_process.c
@@ -613,10 +613,11 @@ void USER_APP_Parse_CMD_P(uint8_t *parse_buffer, uint8_t parse_buffer_size)
 
 		break;
 
-		// P 1 1 M C1 C2	Change default OCCUPANCY AND VACANT COLOR CODE
+		// P 1 1 L C1 C2	Change default OCCUPANCY AND VACANT COLOR CODE
 	case 6:
 
 		//if ((sts_work_mode == STS_WIRED_MODE)||(sts_work_mode == STS_TOF_DISTANCE_MODE))
+		if (parse_buffer[CFG_CMD4]=='L')		// P11L21 P11L20 P11L23 for ATAL
 		{
 			sts_cfg_nvm.color_occupy_vacant = ((uint8_t)(parse_buffer[CFG_CMD5]-0x30)<<4)|((uint8_t)(parse_buffer[CFG_CMD6]-0x30));
 			sts_color_occupy_vacant = sts_cfg_nvm.color_occupy_vacant;