diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index c467f7b6..abebb147 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -211,3 +211,9 @@ jobs:
     - uses: actions/checkout@v3
     - name: nxp-twrkv58f220m-lwip-freertos
       run: make -C examples/nxp/nxp-twrkv58f220m-lwip-freertos build
+  infineon-xmc4700_4800-lwip-rtx-rtos:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - name: infineon-xmc4700_4800-lwip-rtx-rtos
+      run: make -C examples/infineon/infineon-xmc4700_4800-lwip-rtx-rtos build
\ No newline at end of file
diff --git a/examples/infineon/infineon-xmc4700_4800-lwip-rtx-rtos/Makefile b/examples/infineon/infineon-xmc4700_4800-lwip-rtx-rtos/Makefile
new file mode 100644
index 00000000..3423b36b
--- /dev/null
+++ b/examples/infineon/infineon-xmc4700_4800-lwip-rtx-rtos/Makefile
@@ -0,0 +1,9 @@
+NAME ?= $(notdir $(CURDIR))
+
+build:
+	git clone --depth 1 https://github.com/mongoose-examples/$(NAME)
+	cp ./../../../mongoose.[ch] $(NAME)
+	make -C $(NAME) build
+
+clean:
+	rm -rf $(NAME)
diff --git a/mongoose.c b/mongoose.c
index 512801c6..b09fdb13 100644
--- a/mongoose.c
+++ b/mongoose.c
@@ -3332,7 +3332,7 @@ static void mg_set_non_blocking_mode(SOCKET fd) {
   const BaseType_t off = 0;
   if (setsockopt(fd, 0, FREERTOS_SO_RCVTIMEO, &off, sizeof(off)) != 0) (void) 0;
   if (setsockopt(fd, 0, FREERTOS_SO_SNDTIMEO, &off, sizeof(off)) != 0) (void) 0;
-#elif MG_ARCH == MG_ARCH_FREERTOS_LWIP
+#elif MG_ARCH == MG_ARCH_FREERTOS_LWIP || MG_ARCH == MG_ARCH_RTX_LWIP
   lwip_fcntl(fd, F_SETFL, O_NONBLOCK);
 #elif MG_ARCH == MG_ARCH_AZURERTOS
   fcntl(fd, F_SETFL, O_NONBLOCK);
diff --git a/mongoose.h b/mongoose.h
index e716cd51..5287926c 100644
--- a/mongoose.h
+++ b/mongoose.h
@@ -35,6 +35,7 @@ extern "C" {
 #define MG_ARCH_FREERTOS_TCP 5
 #define MG_ARCH_FREERTOS_LWIP 6
 #define MG_ARCH_AZURERTOS 7
+#define MG_ARCH_RTX_LWIP 8
 
 #if !defined(MG_ARCH)
 #if defined(__unix__) || defined(__APPLE__)
@@ -287,6 +288,46 @@ struct timeval {
 #endif  // MG_ARCH == MG_ARCH_FREERTOS_TCP
 
 
+#if MG_ARCH == MG_ARCH_RTX_LWIP
+
+#include <ctype.h>
+#include <stdarg.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <string.h>
+
+#if defined(__GNUC__)
+#include <sys/stat.h>
+#include <sys/time.h>
+#else
+struct timeval {
+  time_t tv_sec;
+  long tv_usec;
+};
+#endif
+
+#include <lwip/sockets.h>
+
+#if LWIP_SOCKET != 1
+// Sockets support disabled in LWIP by default
+#error Set LWIP_SOCKET variable to 1 (in lwipopts.h)
+#endif
+
+#define mkdir(a, b) (-1)
+
+#ifndef MG_IO_SIZE
+#define MG_IO_SIZE 512
+#endif
+
+#ifndef MG_PATH_MAX
+#define MG_PATH_MAX 128
+#endif
+
+
+#endif
+
+
 #if MG_ARCH == MG_ARCH_UNIX
 
 #define _DARWIN_UNLIMITED_SELECT 1  // No limit on file descriptors
diff --git a/src/arch.h b/src/arch.h
index fee7671d..f0a1f8ca 100644
--- a/src/arch.h
+++ b/src/arch.h
@@ -8,6 +8,7 @@
 #define MG_ARCH_FREERTOS_TCP 5
 #define MG_ARCH_FREERTOS_LWIP 6
 #define MG_ARCH_AZURERTOS 7
+#define MG_ARCH_RTX_LWIP 8
 
 #if !defined(MG_ARCH)
 #if defined(__unix__) || defined(__APPLE__)
diff --git a/src/arch_rtx_lwip.h b/src/arch_rtx_lwip.h
new file mode 100644
index 00000000..9200a3ec
--- /dev/null
+++ b/src/arch_rtx_lwip.h
@@ -0,0 +1,40 @@
+#pragma once
+
+#if MG_ARCH == MG_ARCH_RTX_LWIP
+
+#include <ctype.h>
+#include <stdarg.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <string.h>
+
+#if defined(__GNUC__)
+#include <sys/stat.h>
+#include <sys/time.h>
+#else
+struct timeval {
+  time_t tv_sec;
+  long tv_usec;
+};
+#endif
+
+#include <lwip/sockets.h>
+
+#if LWIP_SOCKET != 1
+// Sockets support disabled in LWIP by default
+#error Set LWIP_SOCKET variable to 1 (in lwipopts.h)
+#endif
+
+#define mkdir(a, b) (-1)
+
+#ifndef MG_IO_SIZE
+#define MG_IO_SIZE 512
+#endif
+
+#ifndef MG_PATH_MAX
+#define MG_PATH_MAX 128
+#endif
+
+
+#endif
diff --git a/src/sock.c b/src/sock.c
index 0503e838..2db311d4 100644
--- a/src/sock.c
+++ b/src/sock.c
@@ -170,7 +170,7 @@ static void mg_set_non_blocking_mode(SOCKET fd) {
   const BaseType_t off = 0;
   if (setsockopt(fd, 0, FREERTOS_SO_RCVTIMEO, &off, sizeof(off)) != 0) (void) 0;
   if (setsockopt(fd, 0, FREERTOS_SO_SNDTIMEO, &off, sizeof(off)) != 0) (void) 0;
-#elif MG_ARCH == MG_ARCH_FREERTOS_LWIP
+#elif MG_ARCH == MG_ARCH_FREERTOS_LWIP || MG_ARCH == MG_ARCH_RTX_LWIP
   lwip_fcntl(fd, F_SETFL, O_NONBLOCK);
 #elif MG_ARCH == MG_ARCH_AZURERTOS
   fcntl(fd, F_SETFL, O_NONBLOCK);