diff --git a/bsp/lpc55sxx/Libraries/drivers/drv_pwm.c b/bsp/lpc55sxx/Libraries/drivers/drv_pwm.c
index aec4fe066d..71403c328a 100644
--- a/bsp/lpc55sxx/Libraries/drivers/drv_pwm.c
+++ b/bsp/lpc55sxx/Libraries/drivers/drv_pwm.c
@@ -68,7 +68,7 @@ static rt_err_t lpc_drv_pwm_get(struct rt_device_pwm *device, struct rt_pwm_conf
 
 #ifdef BSP_USING_CTIMER2
     /* get frequence */
-    pwmClock = CLOCK_GetFreq(kCLOCK_CTimer2) ;
+    pwmClock = CLOCK_GetFreq(kCLOCK_Timer2) ;
 #endif
 
     get_frequence = pwmClock / (base->MR[kCTIMER_Match_3] + 1);
@@ -110,7 +110,7 @@ static rt_err_t lpc_drv_pwm_set(struct rt_device_pwm *device, struct rt_pwm_conf
     {
         /* Get the PWM period match value and pulse width match value of DEFAULT_FREQ PWM signal with DEFAULT_DUTY dutycycle */
         /* Calculate PWM period match value */
-        pwmPeriod = (( CLOCK_GetFreq(kCLOCK_CTimer2) / (config.prescale + 1) ) / DEFAULT_FREQ) - 1;
+        pwmPeriod = (( CLOCK_GetFreq(kCLOCK_Timer2) / (config.prescale + 1) ) / DEFAULT_FREQ) - 1;
 
         /* Calculate pulse width match value */
         if (DEFAULT_DUTY == 0)
@@ -175,7 +175,7 @@ int rt_hw_pwm_init(void)
 #ifdef BSP_USING_CTIMER2_MAT1
     /* Get the PWM period match value and pulse width match value of DEFAULT_FREQ PWM signal with DEFAULT_DUTY dutycycle */
     /* Calculate PWM period match value */
-    pwmPeriod = (( CLOCK_GetFreq(kCLOCK_CTimer2) / (config.prescale + 1) ) / DEFAULT_FREQ) - 1;
+    pwmPeriod = (( CLOCK_GetFreq(kCLOCK_Timer2) / (config.prescale + 1) ) / DEFAULT_FREQ) - 1;
 
     /* Calculate pulse width match value */
     if (DEFAULT_DUTY == 0)
@@ -186,7 +186,7 @@ int rt_hw_pwm_init(void)
     {
         pulsePeriod = (pwmPeriod * (100 - DEFAULT_DUTY)) / 100;
     }
-    CTIMER_SetupPwmPeriod(CTIMER2, kCTIMER_Match_1 , pwmPeriod, pulsePeriod, false);
+    CTIMER_SetupPwmPeriod(CTIMER2, kCTIMER_Match_3 , kCTIMER_Match_1, pwmPeriod, pulsePeriod, false);
 #endif
 
     ret = rt_device_pwm_register(&pwm1_device, "pwm1", &lpc_drv_ops, CTIMER2);
diff --git a/bsp/lpc55sxx/lpc55s69_nxp_evk/applications/SConscript b/bsp/lpc55sxx/lpc55s69_nxp_evk/applications/SConscript
index 0d32358417..e1c7fa5996 100644
--- a/bsp/lpc55sxx/lpc55s69_nxp_evk/applications/SConscript
+++ b/bsp/lpc55sxx/lpc55s69_nxp_evk/applications/SConscript
@@ -1,17 +1,18 @@
-import rtconfig
 from building import *
+import os
 
-cwd = GetCurrentDir()
-src = Glob('main.c')
+cwd     = GetCurrentDir()
 CPPPATH = [cwd]
+src     = Glob('*.c')
 
-# add for startup script
-if rtconfig.PLATFORM in ['gcc']:
-    CPPDEFINES = ['__START=entry']
-else:
-    CPPDEFINES = []
+if GetDepend(['PKG_USING_RTDUINO']) and not GetDepend(['RTDUINO_NO_SETUP_LOOP']):
+    src += ['arduino_main.cpp']
 
+group = DefineGroup('Applications', src, depend = [''], CPPPATH = CPPPATH)
 
-group = DefineGroup('Applications', src, depend = [''], CPPPATH = CPPPATH, CPPDEFINES=CPPDEFINES)
+list = os.listdir(cwd)
+for item in list:
+    if os.path.isfile(os.path.join(cwd, item, 'SConscript')):
+        group = group + SConscript(os.path.join(item, 'SConscript'))
 
 Return('group')
diff --git a/bsp/lpc55sxx/lpc55s69_nxp_evk/applications/arduino_main.cpp b/bsp/lpc55sxx/lpc55s69_nxp_evk/applications/arduino_main.cpp
new file mode 100644
index 0000000000..07b2e47ee3
--- /dev/null
+++ b/bsp/lpc55sxx/lpc55s69_nxp_evk/applications/arduino_main.cpp
@@ -0,0 +1,32 @@
+/*
+ * Copyright (c) 2006-2023, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2023-02-22     ChuShicheng  first version
+ */
+
+#include <Arduino.h>
+
+int led = 37; /* LED pin */
+int brightness = 0;
+int fadeAmount = 5;
+
+void setup()
+{
+    /* Do not invoke pinMode for the PWM IO! */
+}
+
+void loop()
+{
+    analogWrite(led, brightness);
+    brightness = brightness + fadeAmount;
+    if (brightness <= 0 || brightness >= 255)
+    {
+        fadeAmount = -fadeAmount;
+    }
+
+    delay(100);
+}
diff --git a/bsp/lpc55sxx/lpc55s69_nxp_evk/applications/arduino_pinout/README.md b/bsp/lpc55sxx/lpc55s69_nxp_evk/applications/arduino_pinout/README.md
new file mode 100644
index 0000000000..70d59f9bd6
--- /dev/null
+++ b/bsp/lpc55sxx/lpc55s69_nxp_evk/applications/arduino_pinout/README.md
@@ -0,0 +1,44 @@
+# lpc55s69_nxp_evk开发板的Arduino生态兼容说明
+
+## 1 RTduino - RT-Thread的Arduino生态兼容层
+
+lpc55s69_nxp_evk开发板已经完整适配了[RTduino软件包](https://github.com/RTduino/RTduino)，即RT-Thread的Arduino生态兼容层。用户可以按照Arduino的编程习惯来操作该BSP，并且可以使用大量Arduino社区丰富的库，是对RT-Thread生态的极大增强。更多信息，请参见[RTduino软件包说明文档](https://github.com/RTduino/RTduino)。
+
+### 1.1 如何开启针对本BSP的Arduino生态兼容层
+
+Env 工具下敲入 menuconfig 命令，或者 RT-Thread Studio IDE 下选择 RT-Thread Settings：
+
+```Kconfig
+Hardware Drivers Config --->
+    Onboard Peripheral Drivers --->
+        [*] Compatible with Arduino Ecosystem (RTduino)
+```
+
+## 2 Arduino引脚排布
+
+更多引脚布局相关信息参见 [pins_arduino.c](pins_arduino.c) 和 [pins_arduino.h](pins_arduino.h)。
+
+| Arduino引脚编号  | STM32引脚编号 | 5V容忍 | 备注  |
+| ------------------- | --------- | ---- | ------------------------------------------------------------------------- |
+| 0 (D0) | P | 是/否 |  |
+| 1 (D1) | P | 是/否 | PWM1-CH3，默认被RT-Thread的PWM设备框架pwm1接管 |
+| 2 (D2) | P | 是/否 | Serial-RX，默认被RT-Thread的UART设备框架uart1接管 |
+| 3 (D3) | P | 是/否 | Serial-TX，默认被RT-Thread的UART设备框架uart1接管 |
+| 4 (D4) | P | 是/否 | PWM2-CH1，默认被RT-Thread的PWM设备框架pwm2接管 |
+| 5 (D5) | P | 是/否 | PWM2-CH2，默认被RT-Thread的PWM设备框架pwm2接管 |
+| 6 (D6) | P | 是/否 | 板载用户LED |
+| 7 (D7) | P | 是/否 | PWM1-CH0，默认被RT-Thread的PWM设备框架pwm1接管 |
+| 8 (D8) | P | 是/否 |  |
+| 9 (D9) | P | 是/否 | PWM2-CH0，默认被RT-Thread的PWM设备框架pwm2接管 |
+| 10 (D10) | P | 是/否 |  |
+| 11 (D11) | P | 是/否 |  |
+| 12 (D12) | P | 是/否 |  |
+| 13 (D13) | P | 是/否 |  |
+| 14 (D14) | P | 是/否 | PWM3-CH2，默认被RT-Thread的PWM设备框架pwm3接管 |
+| 15 (D15) | P | 是/否 |  |
+| 16 (D16) | P | 是/否 | I2C1-SCL，默认被RT-Thread的I2C设备框架i2c1接管 |
+| 17 (D17) | P | 是/否 | I2C1-SDA，默认被RT-Thread的I2C设备框架i2c1接管 |
+| 18 (A0) | P | 是/否 | ADC0-CH8，默认被RT-Thread的ADC设备框架adc0接管 |
+| 19 (A1) | P | 是/否 | ADC0-CH0，默认被RT-Thread的ADC设备框架adc0接管 |
+| 20 (A2) | -- |  | 芯片内部温度 ADC，默认被RT-Thread的ADC设备框架adc1接管 |
+| 21 (A3) | -- |  | 芯片内部参考电压 ADC，默认被RT-Thread的ADC设备框架adc1接管 |
diff --git a/bsp/lpc55sxx/lpc55s69_nxp_evk/applications/arduino_pinout/SConscript b/bsp/lpc55sxx/lpc55s69_nxp_evk/applications/arduino_pinout/SConscript
new file mode 100644
index 0000000000..2539929027
--- /dev/null
+++ b/bsp/lpc55sxx/lpc55s69_nxp_evk/applications/arduino_pinout/SConscript
@@ -0,0 +1,9 @@
+from building import *
+
+cwd = GetCurrentDir()
+src = Glob('*.c') + Glob('*.cpp')
+inc = [cwd]
+
+group = DefineGroup('RTduino', src, depend = ['PKG_USING_RTDUINO'], CPPPATH = inc)
+
+Return('group')
diff --git a/bsp/lpc55sxx/lpc55s69_nxp_evk/applications/arduino_pinout/pins_arduino.c b/bsp/lpc55sxx/lpc55s69_nxp_evk/applications/arduino_pinout/pins_arduino.c
new file mode 100644
index 0000000000..de36abb335
--- /dev/null
+++ b/bsp/lpc55sxx/lpc55s69_nxp_evk/applications/arduino_pinout/pins_arduino.c
@@ -0,0 +1,46 @@
+/*
+ * Copyright (c) 2006-2023, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2023-02-22     ChuShicheng  first version
+ */
+
+#include <Arduino.h>
+#include <board.h>
+#include "pins_arduino.h"
+
+/*
+ * {Arduino Pin, RT-Thread Pin [, Device Name, Channel]}
+ * [] means optional
+ * Digital pins must NOT give the device name and channel.
+ * Analog pins MUST give the device name and channel(ADC, PWM or DAC).
+ * Arduino Pin must keep in sequence.
+ */
+const pin_map_t pin_map_table[]=
+{
+    {D0, 50},
+    {D1, 49, "pwm1", 3},                /* PWM */
+    {D2, 57, "uart1"},                  /* Serial-RX */
+    {D3, 28, "uart1"},                  /* Serial-TX */
+    {D4, 39, "pwm2", 1},                /* PWM */
+    {D5, 40, "pwm2", 2},                /* PWM */
+    {D6, 37},                           /* LED_BUILTIN */
+    {D7, 43, "pwm1", 0},                /* PWM */
+    {D8, 41},
+    {D9, 38, "pwm2", 0},                /* PWM */
+    {D10, 34},
+    {D11, 27},
+    {D12, 36},
+    {D13, 35},
+    {D14, 54, "pwm3", 2},               /* PWM */
+    {D15, 53},
+    {D16, 15, "i2c1"},                  /* I2C-SCL (Wire) */
+    {D17, 14, "i2c1"},                  /* I2C-SDA (Wire) */
+    {A0, 17, "adc0", 8},                /* ADC */
+    {A1, 24, "adc0", 0},                /* ADC */
+    {A2, RT_NULL, "adc0", 26},          /* ADC, On-Chip: internal temperature sensor, ADC_CHANNEL_TEMPSENSOR */
+    {A3, RT_NULL, "adc0", 13},          /* ADC, On-Chip: internal reference voltage, ADC_CHANNEL_VREFINT */
+};
diff --git a/bsp/lpc55sxx/lpc55s69_nxp_evk/applications/arduino_pinout/pins_arduino.h b/bsp/lpc55sxx/lpc55s69_nxp_evk/applications/arduino_pinout/pins_arduino.h
new file mode 100644
index 0000000000..b7e61f7461
--- /dev/null
+++ b/bsp/lpc55sxx/lpc55s69_nxp_evk/applications/arduino_pinout/pins_arduino.h
@@ -0,0 +1,45 @@
+/*
+ * Copyright (c) 2006-2023, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2023-02-22     ChuShicheng  first version
+ */
+
+#ifndef Pins_Arduino_h
+#define Pins_Arduino_h
+
+/* pins alias. Must keep in sequence */
+#define D0        (0)
+#define D1        (1)
+#define D2        (2)
+#define D3        (3)
+#define D4        (4)
+#define D5        (5)
+#define D6        (6)
+#define D7        (7)
+#define D8        (8)
+#define D9        (9)
+#define D10       (10)
+#define D11       (11)
+#define D12       (12)
+#define D13       (13)
+#define D14       (14)
+#define D15       (15)
+#define D16       (16)
+#define D17       (17)
+#define A0        (18)
+#define A1        (19)
+#define A2        (20)
+#define A3        (21)
+
+#define F_CPU          150000000L  /* CPU:150MHz */
+
+#define LED_BUILTIN     D6  /* Default Built-in LED */
+
+/* i2c1 : P-SDA P-SCL */
+#define RTDUINO_DEFAULT_IIC_BUS_NAME    "i2c1"
+
+#endif /* Pins_Arduino_h */
diff --git a/bsp/lpc55sxx/lpc55s69_nxp_evk/board/Kconfig b/bsp/lpc55sxx/lpc55s69_nxp_evk/board/Kconfig
index 4e4ed80b37..041b90fee6 100644
--- a/bsp/lpc55sxx/lpc55s69_nxp_evk/board/Kconfig
+++ b/bsp/lpc55sxx/lpc55s69_nxp_evk/board/Kconfig
@@ -180,6 +180,18 @@ menu "On-chip Peripheral Drivers"
             default y
 
             if BSP_USING_PWM
+                config BSP_USING_CTIMER0_MAT3
+                    bool "Enable CIMER0 Match3 as PWM output"
+                    default y
+
+                config BSP_USING_CTIMER1_MAT0
+                    bool "Enable CIMER1 Match0 as PWM output"
+                    default y
+
+                config BSP_USING_CTIMER1_MAT3
+                    bool "Enable CIMER1 Match3 as PWM output"
+                    default y
+
                 config BSP_USING_CTIMER2_MAT0
                     bool "Enable CIMER2 Match0 as PWM output"
                     default y
@@ -191,6 +203,10 @@ menu "On-chip Peripheral Drivers"
                 config BSP_USING_CTIMER2_MAT2
                     bool "Enable CIMER2 Match2 as PWM output"
                     default n
+
+                config BSP_USING_CTIMER3_MAT2
+                    bool "Enable CIMER3 Match2 as PWM output"
+                    default n
             endif
 endmenu
 
@@ -215,6 +231,26 @@ menu "Onboard Peripheral Drivers"
                 default "i2c4"
         endif
 
+    config BSP_USING_ARDUINO
+        bool "Compatible with Arduino Ecosystem (RTduino)"
+        select PKG_USING_RTDUINO
+        select BSP_USING_STLINK_TO_USART
+        select BSP_USING_GPIO
+        select BSP_USING_ADC
+        select BSP_USING_ADC0
+        select BSP_USING_PWM
+        select BSP_USING_CTIMER1_MAT0
+        select BSP_USING_CTIMER1_MAT3
+        select BSP_USING_CTIMER2_MAT0
+        select BSP_USING_CTIMER2_MAT1
+        select BSP_USING_CTIMER2_MAT2
+        select BSP_USING_CTIMER3_MAT2
+        select BSP_USING_I2C
+        select BSP_USING_I2C1
+        imply RTDUINO_USING_SERVO
+        imply RTDUINO_USING_WIRE
+        default n
+
 endmenu
 
 menu "Board extended module Drivers"
diff --git a/bsp/lpc55sxx/lpc55s69_nxp_evk/rtconfig.py b/bsp/lpc55sxx/lpc55s69_nxp_evk/rtconfig.py
index 33c94fb73e..647b22a2a6 100644
--- a/bsp/lpc55sxx/lpc55s69_nxp_evk/rtconfig.py
+++ b/bsp/lpc55sxx/lpc55s69_nxp_evk/rtconfig.py
@@ -19,7 +19,7 @@ if  CROSS_TOOL == 'gcc':
     PLATFORM    = 'gcc'
     EXEC_PATH   = r'C:\Users\XXYYZZ'
 elif CROSS_TOOL == 'keil':
-    PLATFORM    = 'armcc'
+    PLATFORM    = 'armclang'
     EXEC_PATH   = r'C:/Keil_v5'
 elif CROSS_TOOL == 'iar':
     PLATFORM    = 'iccarm'