前回の続き
サーバ/クライアントの枠を作る
こんな感じで(前回からの差分)
diff --git a/FreeRTOS/Demo/CORTEX_M3_MPS2_QEMU_GCC/Makefile b/FreeRTOS/Demo/CORTEX_M3_MPS2_QEMU_GCC/Makefile
index b2bc2eef..80b29a28 100644
--- a/FreeRTOS/Demo/CORTEX_M3_MPS2_QEMU_GCC/Makefile
+++ b/FreeRTOS/Demo/CORTEX_M3_MPS2_QEMU_GCC/Makefile
@@ -59,9 +59,9 @@ ifeq ($(FULL_DEMO), 1)
CFLAGS := -DmainCREATE_FULL_DEMO_ONLY=1
else
- SOURCE_FILES += main_blinky.c
+# SOURCE_FILES += main_blinky.c
- CFLAGS := -DmainCREATE_SIMPLE_BLINKY_DEMO_ONLY=1
+# CFLAGS := -DmainCREATE_SIMPLE_BLINKY_DEMO_ONLY=1
endif
@@ -90,7 +90,9 @@ SOURCE_FILES += $(TCP_DIR)/source/portable/BufferManagement/BufferAllocation_2.c
SOURCE_FILES += $(TCP_DIR)/source/portable/NetworkInterface/board_family/NetworkInterface.c
### TCP/IP APP
-#SOURCE_FILES += app_tcp.c
+SOURCE_FILES += main_tcp.c
+SOURCE_FILES += app_client.c
+SOURCE_FILES += app_server.c
OBJ_FILES := $(SOURCE_FILES:%.c=$(BUILD_DIR)/%.o)
diff --git a/FreeRTOS/Demo/CORTEX_M3_MPS2_QEMU_GCC/app_client.c b/FreeRTOS/Demo/CORTEX_M3_MPS2_QEMU_GCC/app_client.c
new file mode 100644
index 00000000..d44babf9
--- /dev/null
+++ b/FreeRTOS/Demo/CORTEX_M3_MPS2_QEMU_GCC/app_client.c
@@ -0,0 +1,10 @@
+#include "app_common.h"
+
+TaskHandle_t client_handle;
+void client_task(void *param)
+{
+ (void)param;
+ d("");
+ for (;;)
+ ;
+}
\ No newline at end of file
diff --git a/FreeRTOS/Demo/CORTEX_M3_MPS2_QEMU_GCC/app_common.h b/FreeRTOS/Demo/CORTEX_M3_MPS2_QEMU_GCC/app_common.h
new file mode 100644
index 00000000..7effcb06
--- /dev/null
+++ b/FreeRTOS/Demo/CORTEX_M3_MPS2_QEMU_GCC/app_common.h
@@ -0,0 +1,19 @@
+#ifndef __APP_COMMON_H__
+#define __APP_COMMON_H__
+
+#include "FreeRTOS.h"
+#include "task.h"
+#include "dlog.h"
+
+#define SERVER_PRIORITY (tskIDLE_PRIORITY + 2)
+#define CLIENT_PRIORITY (tskIDLE_PRIORITY + 2)
+
+extern TaskHandle_t server_handle;
+extern TaskHandle_t client_handle;
+
+void main_tcp(void);
+void create_server_task(void);
+void create_client_task(void);
+void server_task(void *param);
+void client_task(void *param);
+#endif
\ No newline at end of file
diff --git a/FreeRTOS/Demo/CORTEX_M3_MPS2_QEMU_GCC/app_server.c b/FreeRTOS/Demo/CORTEX_M3_MPS2_QEMU_GCC/app_server.c
new file mode 100644
index 00000000..bc20215d
--- /dev/null
+++ b/FreeRTOS/Demo/CORTEX_M3_MPS2_QEMU_GCC/app_server.c
@@ -0,0 +1,11 @@
+#include "app_common.h"
+
+TaskHandle_t server_handle;
+void server_task(void *param)
+{
+ (void)param;
+ d("");
+ vTaskDelay(0);
+ for (;;)
+ ;
+}
\ No newline at end of file
diff --git a/FreeRTOS/Demo/CORTEX_M3_MPS2_QEMU_GCC/dlog.h b/FreeRTOS/Demo/CORTEX_M3_MPS2_QEMU_GCC/dlog.h
new file mode 100644
index 00000000..927df7ae
--- /dev/null
+++ b/FreeRTOS/Demo/CORTEX_M3_MPS2_QEMU_GCC/dlog.h
@@ -0,0 +1,10 @@
+#ifndef __APP_DLOG_H__
+#define __APP_DLOG_H__
+
+#include <stdio.h>
+#define d(s, ...) \
+ do \
+ { \
+ printf("%s(%d) %s " s "\n", __FILE__, __LINE__, __func__, ##__VA_ARGS__); \
+ } while (0)
+#endif
\ No newline at end of file
diff --git a/FreeRTOS/Demo/CORTEX_M3_MPS2_QEMU_GCC/main.c b/FreeRTOS/Demo/CORTEX_M3_MPS2_QEMU_GCC/main.c
index 0aea169c..f7a9f56e 100644
--- a/FreeRTOS/Demo/CORTEX_M3_MPS2_QEMU_GCC/main.c
+++ b/FreeRTOS/Demo/CORTEX_M3_MPS2_QEMU_GCC/main.c
@@ -32,6 +32,7 @@
#include <string.h>
#include <stdarg.h>
#include <stdio.h>
+#include "app_common.h"
void vApplicationStackOverflowHook( TaskHandle_t pxTask,
char * pcTaskName );
@@ -65,7 +66,7 @@ int main()
}
#else
{
- #error "Invalid Selection...\nPlease Select a Demo application from the main command"
+ main_tcp();
}
#endif /* if ( mainCREATE_SIMPLE_BLINKY_DEMO_ONLY == 1 ) */
return 0;
diff --git a/FreeRTOS/Demo/CORTEX_M3_MPS2_QEMU_GCC/main_tcp.c b/FreeRTOS/Demo/CORTEX_M3_MPS2_QEMU_GCC/main_tcp.c
new file mode 100644
index 00000000..570985a3
--- /dev/null
+++ b/FreeRTOS/Demo/CORTEX_M3_MPS2_QEMU_GCC/main_tcp.c
@@ -0,0 +1,9 @@
+#include "app_common.h"
+#include <stdio.h>
+
+void main_tcp(void) {
+ xTaskCreate(server_task, "server_task", 500, NULL, SERVER_PRIORITY, &server_handle);
+ xTaskCreate(client_task, "client_task", 500, NULL, CLIENT_PRIORITY, &client_handle);
+ vTaskStartScheduler();
+ printf("task not work\n");
+}
\ No newline at end of file
通った
sudo qemu-system-arm -machine mps2-an385 -monitor null -semihosting --semihosting-config enable=on,target=native -kernel ./build/RTOSDemo.axf -serial stdio -nographic
app_server.c(7) server_task
app_client.c(7) client_task
NICを実装する
IPの使用方法は以下の通りとなっている。
まずはルートを調べる。
TCP実装方法は以下にあるので読んで見る。
https://www.freertos.org/FreeRTOS-Plus/FreeRTOS_Plus_TCP/TCP_Networking_Tutorial.html
しばらく読んで見る、、、
こんな構造体も関数もないぞ？？？
Tutorialは4.0.0向けで一般にダウンロードできるものは3.1.0という落ちでした。
Deprecatedに3.1.0向けが残っているっぽいのでそれを参考に書いてみる。
ソケット作成
前回からの差分
diff --git a/FreeRTOS/Demo/CORTEX_M3_MPS2_QEMU_GCC/FreeRTOSIPConfig.h b/FreeRTOS/Demo/CORTEX_M3_MPS2_QEMU_GCC/FreeRTOSIPConfig.h
index 54c715f5..a26ef6b5 100644
--- a/FreeRTOS/Demo/CORTEX_M3_MPS2_QEMU_GCC/FreeRTOSIPConfig.h
+++ b/FreeRTOS/Demo/CORTEX_M3_MPS2_QEMU_GCC/FreeRTOSIPConfig.h
@@ -1,4 +1,8 @@
#ifndef FREERTOS_IP_CONFIG_H
#define FREERTOS_IP_CONFIG_H
+
#define ipconfigBYTE_ORDER pdFREERTOS_LITTLE_ENDIAN
+#define ipconfigUSE_IPv4 1
+#define ipconfigUSE_TCP 1
+
#endif
diff --git a/FreeRTOS/Demo/CORTEX_M3_MPS2_QEMU_GCC/Makefile b/FreeRTOS/Demo/CORTEX_M3_MPS2_QEMU_GCC/Makefile
index 80b29a28..4b8f6d45 100644
--- a/FreeRTOS/Demo/CORTEX_M3_MPS2_QEMU_GCC/Makefile
+++ b/FreeRTOS/Demo/CORTEX_M3_MPS2_QEMU_GCC/Makefile
@@ -87,7 +87,7 @@ INCLUDE_DIRS += -I$(TCP_DIR)/source/include
INCLUDE_DIRS += -I$(TCP_DIR)/source/portable/Compiler/GCC
SOURCE_FILES += $(wildcard $(TCP_DIR)/source/*.c)
SOURCE_FILES += $(TCP_DIR)/source/portable/BufferManagement/BufferAllocation_2.c
-SOURCE_FILES += $(TCP_DIR)/source/portable/NetworkInterface/board_family/NetworkInterface.c
+SOURCE_FILES += $(TCP_DIR)/source/portable/NetworkInterface/virtether/NetworkInterface.c
### TCP/IP APP
SOURCE_FILES += main_tcp.c
diff --git a/FreeRTOS/Demo/CORTEX_M3_MPS2_QEMU_GCC/NetworkInterface.c b/FreeRTOS/Demo/CORTEX_M3_MPS2_QEMU_GCC/NetworkInterface.c
new file mode 120000
index 00000000..0a846b9b
--- /dev/null
+++ b/FreeRTOS/Demo/CORTEX_M3_MPS2_QEMU_GCC/NetworkInterface.c
@@ -0,0 +1 @@
+../../../FreeRTOS-Plus/Source/FreeRTOS-Plus-TCP/source/portable/NetworkInterface/virtether/NetworkInterface.c
\ No newline at end of file
diff --git a/FreeRTOS/Demo/CORTEX_M3_MPS2_QEMU_GCC/app_client.c b/FreeRTOS/Demo/CORTEX_M3_MPS2_QEMU_GCC/app_client.c
index d44babf9..296d8a16 100644
--- a/FreeRTOS/Demo/CORTEX_M3_MPS2_QEMU_GCC/app_client.c
+++ b/FreeRTOS/Demo/CORTEX_M3_MPS2_QEMU_GCC/app_client.c
@@ -1,10 +1,43 @@
#include "app_common.h"
+#include "FreeRTOS_Sockets.h"
+
+/* functions */
+static void vCreateTCPClientSocket(void);
TaskHandle_t client_handle;
void client_task(void *param)
{
(void)param;
d("");
+ vCreateTCPClientSocket();
for (;;)
;
+}
+
+static void vCreateTCPClientSocket(void)
+{
+ Socket_t xClientSocket;
+ socklen_t xSize = sizeof(struct freertos_sockaddr);
+ static const TickType_t xTimeOut = pdMS_TO_TICKS(2000);
+
+ xClientSocket = FreeRTOS_socket(FREERTOS_AF_INET,
+ FREERTOS_SOCK_STREAM,
+ FREERTOS_IPPROTO_TCP);
+ d("sock:%ld", (int32_t)xClientSocket);
+ configASSERT(xClientSocket != FREERTOS_INVALID_SOCKET);
+
+ FreeRTOS_setsockopt(xClientSocket,
+ 0,
+ FREERTOS_SO_RCVTIMEO, &xTimeOut,
+ sizeof(xTimeOut));
+
+ FreeRTOS_setsockopt(xClientSocket,
+ 0,
+ FREERTOS_SO_SNDTIMEO,
+ &xTimeOut,
+ sizeof(xTimeOut));
+ d("sockopt");
+
+ FreeRTOS_bind(xClientSocket, NULL, xSize);
+ d("bind");
}
\ No newline at end of file
diff --git a/FreeRTOS/Demo/CORTEX_M3_MPS2_QEMU_GCC/app_server.c b/FreeRTOS/Demo/CORTEX_M3_MPS2_QEMU_GCC/app_server.c
index bc20215d..ef271e81 100644
--- a/FreeRTOS/Demo/CORTEX_M3_MPS2_QEMU_GCC/app_server.c
+++ b/FreeRTOS/Demo/CORTEX_M3_MPS2_QEMU_GCC/app_server.c
@@ -1,11 +1,54 @@
#include "app_common.h"
+#include "FreeRTOS_IP.h"
+#include "FreeRTOS_Sockets.h"
+
+static void vCreateTCPServerSocket(void);
TaskHandle_t server_handle;
void server_task(void *param)
{
(void)param;
d("");
+
+ vCreateTCPServerSocket();
vTaskDelay(0);
for (;;)
;
+}
+
+static void vCreateTCPServerSocket(void)
+{
+ struct freertos_sockaddr xClient, xBindAddress;
+ Socket_t xListeningSocket, xConnectedSocket;
+ socklen_t xSize = sizeof(xClient);
+ static const TickType_t xReceiveTimeOut = portMAX_DELAY;
+ const BaseType_t xBacklog = 20;
+
+ xListeningSocket = FreeRTOS_socket(FREERTOS_AF_INET, FREERTOS_SOCK_STREAM, FREERTOS_IPPROTO_TCP);
+ d("sock:%ld", (int32_t)xListeningSocket);
+
+ configASSERT(xListeningSocket != FREERTOS_INVALID_SOCKET);
+
+ FreeRTOS_setsockopt(xListeningSocket,
+ 0,
+ FREERTOS_SO_RCVTIMEO,
+ &xReceiveTimeOut,
+ sizeof(xReceiveTimeOut));
+
+ xBindAddress.sin_port = (uint16_t)10000;
+ xBindAddress.sin_port = FreeRTOS_htons(xBindAddress.sin_port);
+
+ FreeRTOS_bind(xListeningSocket, &xBindAddress, sizeof(xBindAddress));
+ d("bind");
+
+ FreeRTOS_listen(xListeningSocket, xBacklog);
+ d("listen");
+
+ for (;;)
+ {
+ xConnectedSocket = FreeRTOS_accept(xListeningSocket, &xClient, &xSize);
+ configASSERT(xConnectedSocket != FREERTOS_INVALID_SOCKET);
+
+ d("accept");
+ }
}
\ No newline at end of file
diff --git a/FreeRTOS/Demo/CORTEX_M3_MPS2_QEMU_GCC/dlog.h b/FreeRTOS/Demo/CORTEX_M3_MPS2_QEMU_GCC/dlog.h
index 927df7ae..14fe575f 100644
--- a/FreeRTOS/Demo/CORTEX_M3_MPS2_QEMU_GCC/dlog.h
+++ b/FreeRTOS/Demo/CORTEX_M3_MPS2_QEMU_GCC/dlog.h
@@ -2,9 +2,13 @@
#define __APP_DLOG_H__
#include <stdio.h>
-#define d(s, ...) \
- do \
- { \
- printf("%s(%d) %s " s "\n", __FILE__, __LINE__, __func__, ##__VA_ARGS__); \
+#include <string.h>
+
+#define __FILENAME__ (strrchr(__FILE__, '/') ? strrchr(__FILE__, '/') + 1 : __FILE__)
+
+#define d(s, ...) \
+ do \
+ { \
+ printf("%s(%d) %s " s "\n", __FILENAME__, __LINE__, __func__, ##__VA_ARGS__); \
} while (0)
#endif
\ No newline at end of file
diff --git a/FreeRTOS/Demo/CORTEX_M3_MPS2_QEMU_GCC/main_tcp.c b/FreeRTOS/Demo/CORTEX_M3_MPS2_QEMU_GCC/main_tcp.c
index 570985a3..28db7343 100644
--- a/FreeRTOS/Demo/CORTEX_M3_MPS2_QEMU_GCC/main_tcp.c
+++ b/FreeRTOS/Demo/CORTEX_M3_MPS2_QEMU_GCC/main_tcp.c
@@ -1,9 +1,54 @@
#include "app_common.h"
#include <stdio.h>
+#include "FreeRTOS_IP.h"
+
+/* The MAC address array is not declared const as the MAC address will
+normally be read from an EEPROM and not hard coded (in real deployed
+applications).*/
+static uint8_t ucMACAddress[ 6 ] = { 0x00, 0x11, 0x22, 0x33, 0x44, 0x55 };
+
+/* Define the network addressing. These parameters will be used if either
+ipconfigUDE_DHCP is 0 or if ipconfigUSE_DHCP is 1 but DHCP auto configuration
+failed. */
+static const uint8_t ucIPAddress[ 4 ] = { 10, 10, 10, 200 };
+static const uint8_t ucNetMask[ 4 ] = { 255, 0, 0, 0 };
+static const uint8_t ucGatewayAddress[ 4 ] = { 10, 10, 10, 1 };
+
+/* The following is the address of an OpenDNS server. */
+static const uint8_t ucDNSServerAddress[ 4 ] = { 208, 67, 222, 222 };
+
+void main_tcp(void)
+{
+
+ FreeRTOS_IPInit( ucIPAddress,
+ ucNetMask,
+ ucGatewayAddress,
+ ucDNSServerAddress,
+ ucMACAddress );
-void main_tcp(void) {
xTaskCreate(server_task, "server_task", 500, NULL, SERVER_PRIORITY, &server_handle);
xTaskCreate(client_task, "client_task", 500, NULL, CLIENT_PRIORITY, &client_handle);
vTaskStartScheduler();
printf("task not work\n");
-}
\ No newline at end of file
+}
+
+void vApplicationIPNetworkEventHook( eIPCallbackEvent_t eNetworkEvent )
+{
+static BaseType_t xTasksAlreadyCreated = pdFALSE;
+
+ /* Both eNetworkUp and eNetworkDown events can be processed here. */
+ if( eNetworkEvent == eNetworkUp )
+ {
+ /* Create the tasks that use the TCP/IP stack if they have not already
+ been created. */
+ if( xTasksAlreadyCreated == pdFALSE )
+ {
+ /*
+ * For convenience, tasks that use FreeRTOS-Plus-TCP can be created here
+ * to ensure they are not created before the network is usable.
+ */
+
+ xTasksAlreadyCreated = pdTRUE;
+ }
+ }
+}
ついでにgithubに上げた
今こんな感じ
sudo qemu-system-arm -machine mps2-an385 -monitor null -semihosting --semihosting-config enable=on,target=native -kernel ./build/RTOSDemo.axf -serial stdio -nographic
NetworkInterface.c(59) xNetworkInterfaceInitialise
NetworkInterface.c(95) xApplicationGetRandomNumber
app_server.c(11) server_task
app_server.c(28) vCreateTCPServerSocket sock:536945200
app_client.c(11) client_task
app_client.c(26) vCreateTCPClientSocket sock:536945632
app_client.c(39) vCreateTCPClientSocket sockopt
NetworkInterface.c(95) xApplicationGetRandomNumber
app_server.c(42) vCreateTCPServerSocket bind
app_server.c(45) vCreateTCPServerSocket listen
app_client.c(42) vCreateTCPClientSocket bind
NetworkInterface.c(68) xNetworkInterfaceOutput eb:0x2001259a ip:4294967295 bp:17408 p:17152 ct:0 ow:0x2001046c n:0x20010490 p:0x20010460 iv:0 len:300 aft:1
パケット送ってみる
つながるわけはないけどこんな感じになるらしい。
sudo qemu-system-arm -machine mps2-an385 -monitor null -semihosting --semihosting-config enable=on,target=native -kernel ./build/RTOSDemo.axf -serial stdio -nographic
NetworkInterface.c(59) xNetworkInterfaceInitialise
NetworkInterface.c(95) xApplicationGetRandomNumber
app_server.c(11) server_task
app_server.c(28) vCreateTCPServerSocket sock:536945208
app_client.c(28) client_task
app_client.c(44) vTCPSend IN
NetworkInterface.c(95) xApplicationGetRandomNumber
app_server.c(42) vCreateTCPServerSocket bind
app_server.c(45) vCreateTCPServerSocket listen
NetworkInterface.c(68) xNetworkInterfaceOutput eb:0x200125a2 ip:3355486400 bp:0 p:0 ct:0 ow:0x2001046c n:0x20010490 p:0x20010460 iv:0 len:42 aft:1
NetworkInterface.c(68) xNetworkInterfaceOutput eb:0x200125fa ip:4294967295 bp:17408 p:17152 ct:0 ow:0x20010490 n:0x200104b4 p:0x20010460 iv:0 len:300 aft:1
NetworkInterface.c(68) xNetworkInterfaceOutput eb:0x20012742 ip:3355486400 bp:0 p:0 ct:0 ow:0x200104b4 n:0x200104d8 p:0x20010460 iv:0 len:42 aft:1
NetworkInterface.c(68) xNetworkInterfaceOutput eb:0x200127a2 ip:3355486400 bp:0 p:0 ct:0 ow:0x200104d8 n:0x200104fc p:0x20010460 iv:0 len:42 aft:1
app_client.c(87) vTCPSend not connected
app_client.c(108) vTCPSend OUT
FreeRTOS-Plus-TCP(V4.0.0)
ドキュメントはv4ぽいが公式からダウンロードできるものについているFreeRTOS-Plus-TCPは3.1.0でもなさそう。(ファイルヘッダに3.1.0って書いてあるけど pxFillInterfaceDescriptor呼んでるとこどこにもないし）
答え合わせが面倒なのでv4.0.0に変更してみる。
FreeRTOS_IPInit_Multiで止まるようになった
(gdb) bt
#0 vAssertCalled () at main.c:139
#1 0x00005db2 in FreeRTOS_IPInit_Multi () at /home/voyager/workspace/freertos/FreeRTOS-Plus-TCP/source/FreeRTOS_IP.c:954
#2 0x00005e40 in FreeRTOS_IPInit (ucIPAddress=ucIPAddress@entry=0x112c8 <ucIPAddress> "\n\n\n\310app_client.c", ucNetMask=ucNetMask@entry=0x112c4 <ucNetMask> "\377", ucGatewayAddress=ucGatewayAddress@entry=0x112c0 <ucGatewayAddress> "\n\n\n\001\377", ucDNSServerAddress=ucDNSServerAddress@entry=0x112bc <ucDNSServerAddress> "\320C\336\336\n\n\n\001\377", ucMACAddress=ucMACAddress@entry=0x20000128 <ucMACAddress> "") at /home/voyager/workspace/freertos/FreeRTOS-Plus-TCP/source/FreeRTOS_IP.c:939
#3 0x0000dd8c in main_tcp () at main_tcp.c:23
#4 0x000001c6 in main () at main.c:69
pxNetworkInterfacesがNULLだとだめらしい
(gdb) l FreeRTOS_FirstNetworkInterface
206 *
207 * @return The first interface, or NULL if none has been added
208 */
209 NetworkInterface_t * FreeRTOS_FirstNetworkInterface( void )
210 {
211 return pxNetworkInterfaces;
212 }
grep pxNetworkInterfaces ../FreeRTOS-Plus-TCP/ -wnrI |grep -v test | grep " = "
../FreeRTOS-Plus-TCP/source/FreeRTOS_IP.c:506: for( pxInterface = pxNetworkInterfaces; pxInterface != NULL; pxInterface = pxInterface->pxNext )
../FreeRTOS-Plus-TCP/source/FreeRTOS_IP_Timers.c:322: for( pxInterface = pxNetworkInterfaces; pxInterface != NULL; pxInterface = pxInterface->pxNext )
../FreeRTOS-Plus-TCP/source/FreeRTOS_Routing.c:56:struct xNetworkInterface * pxNetworkInterfaces = NULL;
../FreeRTOS-Plus-TCP/source/FreeRTOS_Routing.c:169: pxNetworkInterfaces = pxInterface;
../FreeRTOS-Plus-TCP/source/FreeRTOS_Routing.c:179: pxIterator = pxNetworkInterfaces;
../FreeRTOS-Plus-TCP/source/FreeRTOS_Routing.c:1169: pxNetworkInterfaces = pxInterface;
(169)と(1169)はどちらも同じ関数名だったFreeRTOS_AddNetworkInterface
どこかのタイミングで FreeRTOS_AddNetworkInterface が呼ばれていないとだめらしい
これみると px${port_name}_FillInterfaceDescriptor() を呼ばないとだめらしい。
追加したけどまた止まった
(gdb) bt
#0 vAssertCalled () at main.c:139
#1 0x00006be2 in prvProcessNetworkDownEvent (pxInterface=0x2000680c <xInterfaces.5>) at /home/voyager/workspace/freertos/FreeRTOS-Plus-TCP/source/FreeRTOS_IP_Utils.c:824
#2 0x000065b2 in prvProcessIPEventsAndTimers () at /home/voyager/workspace/freertos/FreeRTOS-Plus-TCP/source/FreeRTOS_IP.c:301
#3 0x000066a6 in prvIPTask (pvParameters=<optimized out>) at /home/voyager/workspace/freertos/FreeRTOS-Plus-TCP/source/FreeRTOS_IP.c:247
#4 0x00000280 in prvPortStartFirstTask () at /home/voyager/workspace/freertos/FreeRTOSv202212.01/FreeRTOS/Source/portable/GCC/ARM_CM3/port.c:247
コールバックが設定されてないとだめ
(gdb) l /home/voyager/workspace/freertos/FreeRTOS-Plus-TCP/source/FreeRTOS_IP_Utils.c:824
819 void prvProcessNetworkDownEvent( struct xNetworkInterface * pxInterface )
820 {
821 NetworkEndPoint_t * pxEndPoint;
822
823 configASSERT( pxInterface != NULL );
824 configASSERT( pxInterface->pfInitialise != NULL );
825 /* Stop the ARP timer while there is no network. */
826 vIPSetARPTimerEnableState( pdFALSE );
ちょっと進んだけどconnectはエラーが返ってるらしい
sudo qemu-system-arm -machine mps2-an385 -monitor null -semihosting --semihosting-config enable=on,target=native -kernel ./build/RTOSDemo.axf -serial stdio -nographic -gdb tcp::12345 -S
[0] NetworkInterface.c(118) pxFillInterfaceDescriptor mac:0 fr:0x5e19
[67b4] NetworkInterface.c(96) xApplicationGetRandomNumber fr:0x4a93
[2280] app_server.c(11) server_task fr:0x281
[2280] app_server.c(28) vCreateTCPServerSocket sock:536947616 fr:0xe08d
[2ab8] app_client.c(28) client_task fr:0x281
[2ab8] app_client.c(44) vTCPSend IN fr:0xdf71
[2ab8] app_client.c(54) vTCPSend socket fr:0xdf71
[67b4] NetworkInterface.c(96) xApplicationGetRandomNumber fr:0x937b
[2280] app_server.c(42) vCreateTCPServerSocket bind fr:0xe08d
[2280] app_server.c(45) vCreateTCPServerSocket listen fr:0xe08d
[2ab8] app_client.c(84) vTCPSend not connected fr:0xdf71
[2ab8] app_client.c(105) vTCPSend OUT fr:0xdf71
[67b4] NetworkInterface.c(96) xApplicationGetRandomNumber fr:0x498f
参考