diff --git a/RaspberryPi_JetsonNano/c/Makefile b/RaspberryPi_JetsonNano/c/Makefile
index dcd397df9..4254c2717 100644
--- a/RaspberryPi_JetsonNano/c/Makefile
+++ b/RaspberryPi_JetsonNano/c/Makefile
@@ -179,7 +179,7 @@ endif
 OBJ_C = $(wildcard ${OBJ_C_EPD} ${DIR_GUI}/*.c ${OBJ_C_Examples} ${DIR_Examples}/main.c ${DIR_Examples}/ImageData2.c ${DIR_Examples}/ImageData.c ${DIR_FONTS}/*.c )
 OBJ_O = $(patsubst %.c,${DIR_BIN}/%.o,$(notdir ${OBJ_C}))
 RPI_DEV_C = $(wildcard $(DIR_BIN)/dev_hardware_SPI.o $(DIR_BIN)/RPI_sysfs_gpio.o $(DIR_BIN)/DEV_Config.o )
-JETSON_DEV_C = $(wildcard $(DIR_BIN)/sysfs_software_spi.o $(DIR_BIN)/sysfs_gpio.o $(DIR_BIN)/DEV_Config.o )
+JETSON_LIBRETECH_DEV_C = $(wildcard $(DIR_BIN)/sysfs_software_spi.o $(DIR_BIN)/sysfs_gpio.o $(DIR_BIN)/DEV_Config.o )
 
 
 DEBUG = -D DEBUG
@@ -207,10 +207,14 @@ else ifeq ($(USELIB_JETSONI), USE_HARDWARE_LIB)
 endif
 DEBUG_JETSONI = -D $(USELIB_JETSONI) -D JETSON
 
+LIB_LIBRETECH = -lm
+DEBUG_LIBRETECH = -D USE_DEV_LIB -D LIBRETECH_CC
+
 .PHONY : RPI JETSON clean
 
 RPI:RPI_DEV RPI_epd 
 JETSON: JETSON_DEV JETSON_epd
+LIBRETECH: LIBRETECH_DEV LIBRETECH_epd
 
 TARGET = epd
 CC = gcc
@@ -223,7 +227,11 @@ RPI_epd:${OBJ_O}
 	
 JETSON_epd:${OBJ_O}
 	echo $(@)
-	$(CC) $(CFLAGS) $(OBJ_O) $(JETSON_DEV_C) -o $(TARGET) $(LIB_JETSONI) $(DEBUG)
+	$(CC) $(CFLAGS) $(OBJ_O) $(JETSON_LIBRETECH_DEV_C) -o $(TARGET) $(LIB_JETSONI) $(DEBUG)
+
+LIBRETECH_epd:${OBJ_O}
+	echo $(@)
+	$(CC) $(CFLAGS) $(OBJ_O) $(JETSON_LIBRETECH_DEV_C) -o $(TARGET) $(LIB_LIBRETECH) $(DEBUG)
 
 $(shell mkdir -p $(DIR_BIN))
 
@@ -249,6 +257,11 @@ JETSON_DEV:
 	$(CC) $(CFLAGS) $(DEBUG_JETSONI) -c	 $(DIR_Config)/sysfs_gpio.c -o $(DIR_BIN)/sysfs_gpio.o $(LIB_JETSONI) $(DEBUG)
 	$(CC) $(CFLAGS) $(DEBUG_JETSONI) -c	 $(DIR_Config)/DEV_Config.c -o $(DIR_BIN)/DEV_Config.o $(LIB_JETSONI)  $(DEBUG)
 
+LIBRETECH_DEV:
+	$(CC) $(CFLAGS) $(DEBUG_LIBRETECH) -c	 $(DIR_Config)/sysfs_software_spi.c -o $(DIR_BIN)/sysfs_software_spi.o $(LIB_LIBRETECH) $(DEBUG)
+	$(CC) $(CFLAGS) $(DEBUG_LIBRETECH) -c	 $(DIR_Config)/sysfs_gpio.c -o $(DIR_BIN)/sysfs_gpio.o $(LIB_LIBRETECH) $(DEBUG)
+	$(CC) $(CFLAGS) $(DEBUG_LIBRETECH) -c	 $(DIR_Config)/DEV_Config.c -o $(DIR_BIN)/DEV_Config.o $(LIB_LIBRETECH) $(DEBUG)
+
 clean :
 	rm $(DIR_BIN)/*.* 
 	rm $(TARGET) 
diff --git a/RaspberryPi_JetsonNano/c/lib/Config/DEV_Config.c b/RaspberryPi_JetsonNano/c/lib/Config/DEV_Config.c
index 08d6a87bb..1e6a5a80c 100644
--- a/RaspberryPi_JetsonNano/c/lib/Config/DEV_Config.c
+++ b/RaspberryPi_JetsonNano/c/lib/Config/DEV_Config.c
@@ -52,7 +52,7 @@ void DEV_Digital_Write(UWORD Pin, UBYTE Value)
 #endif
 #endif
 
-#ifdef JETSON
+#if defined(JETSON) || defined(LIBRETECH_CC)
 #ifdef USE_DEV_LIB
 	SYSFS_GPIO_Write(Pin, Value);
 #elif USE_HARDWARE_LIB
@@ -74,7 +74,7 @@ UBYTE DEV_Digital_Read(UWORD Pin)
 #endif
 #endif
 
-#ifdef JETSON
+#if defined(JETSON) || defined(LIBRETECH_CC)
 #ifdef USE_DEV_LIB
 	Read_value = SYSFS_GPIO_Read(Pin);
 #elif USE_HARDWARE_LIB
@@ -99,7 +99,7 @@ void DEV_SPI_WriteByte(uint8_t Value)
 #endif
 #endif
 
-#ifdef JETSON
+#if defined(JETSON) || defined(LIBRETECH_CC)
 #ifdef USE_DEV_LIB
 	SYSFS_software_spi_transfer(Value);
 #elif USE_HARDWARE_LIB
@@ -121,7 +121,7 @@ void DEV_SPI_Write_nByte(uint8_t *pData, uint32_t Len)
 #endif
 #endif
 
-#ifdef JETSON
+#if defined(JETSON) || defined(LIBRETECH_CC)
 #ifdef USE_DEV_LIB
 	//JETSON nano waits for hardware SPI
 	Debug("not support");
@@ -163,7 +163,7 @@ void DEV_GPIO_Mode(UWORD Pin, UWORD Mode)
 #endif
 #endif
 
-#ifdef JETSON
+#if defined(JETSON) || defined(LIBRETECH_CC)
 #ifdef USE_DEV_LIB
 	SYSFS_GPIO_Export(Pin);
 	SYSFS_GPIO_Direction(Pin, Mode);
@@ -191,7 +191,7 @@ void DEV_Delay_ms(UDOUBLE xms)
 #endif
 #endif
 
-#ifdef JETSON
+#if defined(JETSON) || defined(LIBRETECH_CC)
 	UDOUBLE i;
 	for(i=0; i < xms; i++) {
 		usleep(1000);
@@ -233,7 +233,7 @@ static int DEV_Equipment_Testing(void)
 		return -1;
 	}
 #endif
-#ifdef JETSON
+#if defined(JETSON) || defined(LIBRETECH_CC)
 	char system[] = {"Ubuntu"};
 	if (strstr(issue_str, system) != NULL) {
 		printf("%s\n", system);
@@ -261,6 +261,11 @@ void DEV_GPIO_Init(void)
 	EPD_DC_PIN      = GPIO25;
 	EPD_CS_PIN      = SPI0_CS0;
 	EPD_BUSY_PIN    = GPIO24;
+#elif LIBRETECH_CC
+	EPD_RST_PIN     = 620; // 523 + 97 GPIOX_18
+	EPD_DC_PIN      = 619; // 523 + 96 GPIOX_17
+	EPD_CS_PIN      = 612; // 523 + 89 GPIOX_10
+	EPD_BUSY_PIN    = 617; // 523 + 94 GPIOX_15
 #endif
 
 	DEV_GPIO_Mode(EPD_RST_PIN, 1);
@@ -320,7 +325,7 @@ UBYTE DEV_Module_Init(void)
     DEV_HARDWARE_SPI_setSpeed(10000000);
 #endif
 
-#elif JETSON
+#elif defined(JETSON) || defined(LIBRETECH_CC)
 #ifdef USE_DEV_LIB
 	DEV_GPIO_Init();
 	printf("Software spi\r\n");
@@ -365,7 +370,7 @@ void DEV_Module_Exit(void)
 	DEV_Digital_Write(EPD_RST_PIN, 0);
 #endif
 
-#elif JETSON
+#elif defined(JETSON) || defined(LIBRETECH_CC)
 #ifdef USE_DEV_LIB
 	SYSFS_GPIO_Unexport(EPD_CS_PIN);
 	SYSFS_GPIO_Unexport(EPD_DC_PIN);
diff --git a/RaspberryPi_JetsonNano/c/lib/Config/DEV_Config.h b/RaspberryPi_JetsonNano/c/lib/Config/DEV_Config.h
index 105ea1964..3dee35092 100644
--- a/RaspberryPi_JetsonNano/c/lib/Config/DEV_Config.h
+++ b/RaspberryPi_JetsonNano/c/lib/Config/DEV_Config.h
@@ -68,7 +68,7 @@
     #endif
 #endif
 
-#ifdef JETSON
+#if defined(JETSON) || defined(LIBRETECH_CC)
     #ifdef USE_DEV_LIB
         #include "sysfs_gpio.h"    
         #include "sysfs_software_spi.h"
diff --git a/RaspberryPi_JetsonNano/c/lib/Config/sysfs_gpio.h b/RaspberryPi_JetsonNano/c/lib/Config/sysfs_gpio.h
index cb24d84fe..b7674a8bf 100644
--- a/RaspberryPi_JetsonNano/c/lib/Config/sysfs_gpio.h
+++ b/RaspberryPi_JetsonNano/c/lib/Config/sysfs_gpio.h
@@ -49,6 +49,8 @@
 	#define SYSFS_GPIO_Debug(__info,...)  
 #endif 
 
+#if defined(JETSON)
+
 // BCM GPIO for Jetson nano
 #define GPIO4 216 // 7, 4
 #define GPIO17 50 // 11, 17
@@ -75,10 +77,18 @@
 // 22PIN + 2PIN UART0 + 2PIN I2C0 + 2PIN I2C
 // + 2PIN 3V3 + 2PIN 5V + 8PIN GND  = 40PIN
 
+#elif defined(LIBRETECH_CC)
+
+#define SPI0_MOSI 610 // 523 + 87 GPIOX_8
+#define SPI0_MISO 611 // 523 + 88 GPIOX_9
+#define SPI0_SCK 613 // 523 + 90 GPIOX_11
+
+#endif
+
 int SYSFS_GPIO_Export(int Pin);
 int SYSFS_GPIO_Unexport(int Pin);
 int SYSFS_GPIO_Direction(int Pin, int Dir);
 int SYSFS_GPIO_Read(int Pin);
 int SYSFS_GPIO_Write(int Pin, int value);
 
-#endif
\ No newline at end of file
+#endif
diff --git a/RaspberryPi_JetsonNano/c/readme_EN.txt b/RaspberryPi_JetsonNano/c/readme_EN.txt
index 144fc7cc4..c19c64af5 100644
--- a/RaspberryPi_JetsonNano/c/readme_EN.txt
+++ b/RaspberryPi_JetsonNano/c/readme_EN.txt
@@ -29,6 +29,17 @@ DC     ->    25
 RST    ->    17
 BUSY   ->    24
 
+For Libretech-cc (AML S905X) board:
+
+VCC    ->    PIN2
+GND    ->    PIN6
+DIN    ->    PIN19 (GPIOX_8)
+CLK    ->    PIN23 (GPIOX_11)
+CS     ->    PIN24 (GPIOX_10)
+DC     ->    PIN29 (GPIOX_17)
+RST    ->    PIN31 (GPIOX_18)
+BUSY   ->    PIN18 (GPIOX_15)
+
 3. Basic use:
 Since this project is a comprehensive project, you may need to read the following for use:
 You can see many test functions and macro definition Settings in main.c.
@@ -83,4 +94,4 @@ Config\: This directory is a hardware interface layer file. You can see many def
         font24CN: 32*41
         
 \lib\E-paper\: This screen is the ink screen driver function;
-Examples\: This is the test program for the ink screen. You can see the specific usage method in it.
\ No newline at end of file
+Examples\: This is the test program for the ink screen. You can see the specific usage method in it.