Polling based TCP Client

Author: kojo1

RPi-Pico/CMakeLists.txt

@@ -58,7 +58,7 @@ target_link_libraries(benchmark
 )
 pico_add_extra_outputs(benchmark)
 
-if(1)
+if(0)
     add_executable(TCPclient
         src/blink.c
         # src/TCPclient.c
@@ -73,7 +73,9 @@ if(1)
 
         # CYW43_NETUTILS
         # PICO_CYW43_ARCH_FREERTOS
-        TEST_TCP_SERVER_IP="192.168.11.28"
+        TEST_TCP_SERVER_IP=\"${TEST_TCP_SERVER_IP}\"
+        WIFI_SSID=\"${WIFI_SSID}\"
+        WIFI_PASSWORD=\"${WIFI_PASSWORD}\"
         PICO_CYW43_ARCH_POLL
         NO_SYS=1
 
@@ -107,4 +109,62 @@ if(1)
     )
 
     pico_add_extra_outputs(TCPclient)
-endif()
+endif()
+
+add_executable(Wifi
+    src/blink.c
+    src/wifi.c
+    src/Wifi_main.c
+)
+
+# enable usb output, disable uart output
+pico_enable_stdio_usb(Wifi 1)
+pico_enable_stdio_uart(Wifi 0)
+
+target_compile_definitions(Wifi PRIVATE
+    WIFI_SSID=\"${WIFI_SSID}\"
+    WIFI_PASSWORD=\"${WIFI_PASSWORD}\"
+    PICO_CYW43_ARCH_POLL
+    NO_SYS=1
+)
+
+target_link_libraries(Wifi
+    pico_stdlib
+    pico_rand
+    pico_lwip
+    pico_cyw43_arch
+    pico_lwip_nosys
+    pico_async_context_poll
+)
+
+pico_add_extra_outputs(Wifi)
+
+add_executable(tcp_Client
+    src/blink.c
+    src/wifi.c
+    src/tcp.c
+    src/tcpClient_main.c
+)
+
+# enable usb output, disable uart output
+pico_enable_stdio_usb(tcp_Client 1)
+pico_enable_stdio_uart(tcp_Client 0)
+
+target_compile_definitions(tcp_Client PRIVATE
+    WIFI_SSID=\"${WIFI_SSID}\"
+    WIFI_PASSWORD=\"${WIFI_PASSWORD}\"
+    TEST_TCP_SERVER_IP=\"${TEST_TCP_SERVER_IP}\"
+    PICO_CYW43_ARCH_POLL
+    NO_SYS=1
+)
+
+target_link_libraries(tcp_Client
+    pico_stdlib
+    pico_rand
+    pico_lwip
+    pico_cyw43_arch
+    pico_lwip_nosys
+    pico_async_context_poll
+)
+
+pico_add_extra_outputs(tcp_Client)

RPi-Pico/config/lwipopts.h

@@ -0,0 +1,31 @@
+#ifndef _LWIPOPTS_H
+#define _LWIPOPTS_H
+
+// Generally you would define your own explicit list of lwIP options
+// (see https://www.nongnu.org/lwip/2_1_x/group__lwip__opts.html)
+//
+// This example uses a common include to avoid repetition
+#include "lwipopts_examples_common.h"
+
+#if !NO_SYS
+#define TCPIP_THREAD_STACKSIZE 1024
+#define DEFAULT_THREAD_STACKSIZE 1024
+#define DEFAULT_RAW_RECVMBOX_SIZE 8
+#define TCPIP_MBOX_SIZE 8
+#define LWIP_TIMEVAL_PRIVATE 0
+
+// not necessary, can be done either way
+#define LWIP_TCPIP_CORE_LOCKING_INPUT 1
+
+// ping_thread sets socket receive timeout, so enable this feature
+#define LWIP_SO_RCVTIMEO 1
+
+#endif
+
+
+#define LWIP_TIMEVAL_PRIVATE 0
+#define LWIP_MPU_COMPATIBLE  0
+#define LWIP_PROVIDE_ERRNO
+#define LWIP_FREERTOS_SYS_ARCH_PROTECT_USES_MUTEX 1
+
+#endif

RPi-Pico/config/lwipopts_examples_common.h

@@ -0,0 +1,89 @@
+#ifndef _LWIPOPTS_EXAMPLE_COMMONH_H
+#define _LWIPOPTS_EXAMPLE_COMMONH_H
+
+// Common settings used in most of the pico_w examples
+// (see https://www.nongnu.org/lwip/2_1_x/group__lwip__opts.html for details)
+
+// allow override in some examples
+#ifndef NO_SYS
+#define NO_SYS 0
+#endif
+// allow override in some examples
+#ifndef LWIP_SOCKET
+#define LWIP_SOCKET 0
+#endif
+#if PICO_CYW43_ARCH_POLL
+#define MEM_LIBC_MALLOC 1
+#else
+// MEM_LIBC_MALLOC is incompatible with non polling versions
+#define MEM_LIBC_MALLOC 0
+#endif
+#define MEM_ALIGNMENT 4
+#define MEM_SIZE 4000
+#define MEMP_NUM_TCP_SEG 32
+#define MEMP_NUM_ARP_QUEUE 10
+#define PBUF_POOL_SIZE 24
+#define LWIP_ARP 1
+#define LWIP_ETHERNET 1
+#define LWIP_ICMP 1
+#define LWIP_RAW 1
+#define TCP_WND (8 * TCP_MSS)
+#define TCP_MSS 1460
+#define TCP_SND_BUF (8 * TCP_MSS)
+#define TCP_SND_QUEUELEN ((4 * (TCP_SND_BUF) + (TCP_MSS - 1)) / (TCP_MSS))
+#define LWIP_NETIF_STATUS_CALLBACK 1
+#define LWIP_NETIF_LINK_CALLBACK 1
+#define LWIP_NETIF_HOSTNAME 1
+#define LWIP_NETCONN 0
+#define MEM_STATS 0
+#define SYS_STATS 0
+#define MEMP_STATS 0
+#define LINK_STATS 0
+// #define ETH_PAD_SIZE                2
+#define LWIP_CHKSUM_ALGORITHM 3
+#define LWIP_DHCP 1
+#define LWIP_IPV4 1
+#define LWIP_TCP 1
+#define LWIP_UDP 1
+#define LWIP_DNS 1
+#define LWIP_TCP_KEEPALIVE 1
+#define LWIP_NETIF_TX_SINGLE_PBUF 1
+#define DHCP_DOES_ARP_CHECK 0
+#define LWIP_DHCP_DOES_ACD_CHECK 0
+
+#ifndef NDEBUG
+#define LWIP_DEBUG 1
+#define LWIP_STATS 1
+#define LWIP_STATS_DISPLAY 1
+#endif
+
+#define ETHARP_DEBUG LWIP_DBG_OFF
+#define NETIF_DEBUG LWIP_DBG_OFF
+#define PBUF_DEBUG LWIP_DBG_OFF
+#define API_LIB_DEBUG LWIP_DBG_OFF
+#define API_MSG_DEBUG LWIP_DBG_OFF
+#define SOCKETS_DEBUG LWIP_DBG_OFF
+#define ICMP_DEBUG LWIP_DBG_OFF
+#define INET_DEBUG LWIP_DBG_OFF
+#define IP_DEBUG LWIP_DBG_OFF
+#define IP_REASS_DEBUG LWIP_DBG_OFF
+#define RAW_DEBUG LWIP_DBG_OFF
+#define MEM_DEBUG LWIP_DBG_OFF
+#define MEMP_DEBUG LWIP_DBG_OFF
+#define SYS_DEBUG LWIP_DBG_OFF
+#define TCP_DEBUG LWIP_DBG_OFF
+#define TCP_INPUT_DEBUG LWIP_DBG_OFF
+#define TCP_OUTPUT_DEBUG LWIP_DBG_OFF
+#define TCP_RTO_DEBUG LWIP_DBG_OFF
+#define TCP_CWND_DEBUG LWIP_DBG_OFF
+#define TCP_WND_DEBUG LWIP_DBG_OFF
+#define TCP_FR_DEBUG LWIP_DBG_OFF
+#define TCP_QLEN_DEBUG LWIP_DBG_OFF
+#define TCP_RST_DEBUG LWIP_DBG_OFF
+#define UDP_DEBUG LWIP_DBG_OFF
+#define TCPIP_DEBUG LWIP_DBG_OFF
+#define PPP_DEBUG LWIP_DBG_OFF
+#define SLIP_DEBUG LWIP_DBG_OFF
+#define DHCP_DEBUG LWIP_DBG_OFF
+
+#endif /* __LWIPOPTS_H__ */