diff --git a/examples/nucleo_f429zi/freertos_plus_tcp/project.xml b/examples/nucleo_f429zi/freertos_plus_tcp/project.xml
index 9c29693d07..395d1497f3 100644
--- a/examples/nucleo_f429zi/freertos_plus_tcp/project.xml
+++ b/examples/nucleo_f429zi/freertos_plus_tcp/project.xml
@@ -6,7 +6,6 @@
modm:processing:rtos
modm:freertos:tcp
- modm:platform:heap
modm:build:scons
diff --git a/examples/nucleo_f767zi/ethernet/FreeRTOSIPConfigLocal.h b/examples/nucleo_f767zi/ethernet/FreeRTOSIPConfigLocal.h
new file mode 100644
index 0000000000..7e9dd59fd8
--- /dev/null
+++ b/examples/nucleo_f767zi/ethernet/FreeRTOSIPConfigLocal.h
@@ -0,0 +1,271 @@
+/*
+ * FreeRTOS+TCP V2.2.1
+ * Copyright (C) 2017 Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * http://www.FreeRTOS.org
+ * http://aws.amazon.com/freertos
+ *
+ * 1 tab == 4 spaces!
+ */
+
+#ifndef FREERTOS_IP_CONFIG_H
+# error "Don't include this file, use 'FreeRTOSIPConfig.h' instead!"
+#endif
+
+/* Set to 1 to print out debug messages. If ipconfigHAS_DEBUG_PRINTF is set to
+1 then FreeRTOS_debug_printf should be defined to the function used to print
+out the debugging messages. */
+#define ipconfigHAS_DEBUG_PRINTF 0
+
+/* Set to 1 to print out non debugging messages, for example the output of the
+FreeRTOS_netstat() command, and ping replies. If ipconfigHAS_PRINTF is set to 1
+then FreeRTOS_printf should be set to the function used to print out the
+messages. */
+#define ipconfigHAS_PRINTF 0
+
+/* If the network card/driver includes checksum offloading (IP/TCP/UDP checksums)
+then set ipconfigDRIVER_INCLUDED_RX_IP_CHECKSUM to 1 to prevent the software
+stack repeating the checksum calculations. */
+#define ipconfigDRIVER_INCLUDED_RX_IP_CHECKSUM 1
+#define ipconfigDRIVER_INCLUDED_TX_IP_CHECKSUM 1
+
+/* Several API's will block until the result is known, or the action has been
+performed, for example FreeRTOS_send() and FreeRTOS_recv(). The timeouts can be
+set per socket, using setsockopt(). If not set, the times below will be
+used as defaults. */
+#define ipconfigSOCK_DEFAULT_RECEIVE_BLOCK_TIME ( 5000 )
+#define ipconfigSOCK_DEFAULT_SEND_BLOCK_TIME ( 5000 )
+
+/* Include support for LLMNR: Link-local Multicast Name Resolution
+(non-Microsoft) */
+#define ipconfigUSE_LLMNR ( 0 )
+
+/* Include support for NBNS: NetBIOS Name Service (Microsoft) */
+#define ipconfigUSE_NBNS ( 0 )
+
+/* Include support for DNS caching. For TCP, having a small DNS cache is very
+useful. When a cache is present, ipconfigDNS_REQUEST_ATTEMPTS can be kept low
+and also DNS may use small timeouts. If a DNS reply comes in after the DNS
+socket has been destroyed, the result will be stored into the cache. The next
+call to FreeRTOS_gethostbyname() will return immediately, without even creating
+a socket. */
+#define ipconfigUSE_DNS_CACHE ( 1 )
+#define ipconfigDNS_CACHE_NAME_LENGTH ( 16 )
+#define ipconfigDNS_CACHE_ENTRIES ( 4 )
+#define ipconfigDNS_REQUEST_ATTEMPTS ( 2 )
+
+/* ipconfigRAND32() is called by the IP stack to generate random numbers for
+things such as a DHCP transaction number or initial sequence number. Random
+number generation is performed via this macro to allow applications to use their
+own random number generation method. For example, it might be possible to
+generate a random number by sampling noise on an analogue input. */
+extern UBaseType_t uxRand(void);
+#define ipconfigRAND32() uxRand()
+
+/* If ipconfigUSE_NETWORK_EVENT_HOOK is set to 1 then FreeRTOS+TCP will call the
+network event hook at the appropriate times. If ipconfigUSE_NETWORK_EVENT_HOOK
+is not set to 1 then the network event hook will never be called. See
+http://www.FreeRTOS.org/FreeRTOS-Plus/FreeRTOS_Plus_UDP/API/vApplicationIPNetworkEventHook.shtml
+*/
+#define ipconfigUSE_NETWORK_EVENT_HOOK 1
+
+/* Sockets have a send block time attribute. If FreeRTOS_sendto() is called but
+a network buffer cannot be obtained then the calling task is held in the Blocked
+state (so other tasks can continue to executed) until either a network buffer
+becomes available or the send block time expires. If the send block time expires
+then the send operation is aborted. The maximum allowable send block time is
+capped to the value set by ipconfigMAX_SEND_BLOCK_TIME_TICKS. Capping the
+maximum allowable send block time prevents prevents a deadlock occurring when
+all the network buffers are in use and the tasks that process (and subsequently
+free) the network buffers are themselves blocked waiting for a network buffer.
+ipconfigMAX_SEND_BLOCK_TIME_TICKS is specified in RTOS ticks. A time in
+milliseconds can be converted to a time in ticks by dividing the time in
+milliseconds by portTICK_PERIOD_MS. */
+#define ipconfigUDP_MAX_SEND_BLOCK_TIME_TICKS ( 5000 / portTICK_PERIOD_MS )
+
+/* If ipconfigUSE_DHCP is 1 then FreeRTOS+TCP will attempt to retrieve an IP
+address, netmask, DNS server address and gateway address from a DHCP server. If
+ipconfigUSE_DHCP is 0 then FreeRTOS+TCP will use a static IP address. The
+stack will revert to using the static IP address even when ipconfigUSE_DHCP is
+set to 1 if a valid configuration cannot be obtained from a DHCP server for any
+reason. The static configuration used is that passed into the stack by the
+FreeRTOS_IPInit() function call. */
+#define ipconfigUSE_DHCP 0
+
+/* When ipconfigUSE_DHCP is set to 1, DHCP requests will be sent out at
+increasing time intervals until either a reply is received from a DHCP server
+and accepted, or the interval between transmissions reaches
+ipconfigMAXIMUM_DISCOVER_TX_PERIOD. The IP stack will revert to using the
+static IP address passed as a parameter to FreeRTOS_IPInit() if the
+re-transmission time interval reaches ipconfigMAXIMUM_DISCOVER_TX_PERIOD without
+a DHCP reply being received. */
+#define ipconfigMAXIMUM_DISCOVER_TX_PERIOD ( 120000 / portTICK_PERIOD_MS )
+
+/* The ARP cache is a table that maps IP addresses to MAC addresses. The IP
+stack can only send a UDP message to a remove IP address if it knowns the MAC
+address associated with the IP address, or the MAC address of the router used to
+contact the remote IP address. When a UDP message is received from a remote IP
+address the MAC address and IP address are added to the ARP cache. When a UDP
+message is sent to a remote IP address that does not already appear in the ARP
+cache then the UDP message is replaced by a ARP message that solicits the
+required MAC address information. ipconfigARP_CACHE_ENTRIES defines the maximum
+number of entries that can exist in the ARP table at any one time. */
+#define ipconfigARP_CACHE_ENTRIES 6
+
+/* ARP requests that do not result in an ARP response will be re-transmitted a
+maximum of ipconfigMAX_ARP_RETRANSMISSIONS times before the ARP request is
+aborted. */
+#define ipconfigMAX_ARP_RETRANSMISSIONS ( 5 )
+
+/* ipconfigMAX_ARP_AGE defines the maximum time between an entry in the ARP
+table being created or refreshed and the entry being removed because it is stale.
+New ARP requests are sent for ARP cache entries that are nearing their maximum
+age. ipconfigMAX_ARP_AGE is specified in tens of seconds, so a value of 150 is
+equal to 1500 seconds (or 25 minutes). */
+#define ipconfigMAX_ARP_AGE 150
+
+/* Implementing FreeRTOS_inet_addr() necessitates the use of string handling
+routines, which are relatively large. To save code space the full
+FreeRTOS_inet_addr() implementation is made optional, and a smaller and faster
+alternative called FreeRTOS_inet_addr_quick() is provided. FreeRTOS_inet_addr()
+takes an IP in decimal dot format (for example, "192.168.0.1") as its parameter.
+FreeRTOS_inet_addr_quick() takes an IP address as four separate numerical octets
+(for example, 192, 168, 0, 1) as its parameters. If
+ipconfigINCLUDE_FULL_INET_ADDR is set to 1 then both FreeRTOS_inet_addr() and
+FreeRTOS_indet_addr_quick() are available. If ipconfigINCLUDE_FULL_INET_ADDR is
+not set to 1 then only FreeRTOS_indet_addr_quick() is available. */
+#define ipconfigINCLUDE_FULL_INET_ADDR 1
+
+/* ipconfigNUM_NETWORK_BUFFER_DESCRIPTORS defines the total number of network buffer that
+are available to the IP stack. The total number of network buffers is limited
+to ensure the total amount of RAM that can be consumed by the IP stack is capped
+to a pre-determinable value. */
+#define ipconfigNUM_NETWORK_BUFFER_DESCRIPTORS 60
+
+/* A FreeRTOS queue is used to send events from application tasks to the IP
+stack. ipconfigEVENT_QUEUE_LENGTH sets the maximum number of events that can
+be queued for processing at any one time. The event queue must be a minimum of
+5 greater than the total number of network buffers. */
+#define ipconfigEVENT_QUEUE_LENGTH ( ipconfigNUM_NETWORK_BUFFER_DESCRIPTORS + 5 )
+
+/* The address of a socket is the combination of its IP address and its port
+number. FreeRTOS_bind() is used to manually allocate a port number to a socket
+(to 'bind' the socket to a port), but manual binding is not normally necessary
+for client sockets (those sockets that initiate outgoing connections rather than
+wait for incoming connections on a known port number). If
+ipconfigALLOW_SOCKET_SEND_WITHOUT_BIND is set to 1 then calling
+FreeRTOS_sendto() on a socket that has not yet been bound will result in the IP
+stack automatically binding the socket to a port number from the range
+socketAUTO_PORT_ALLOCATION_START_NUMBER to 0xffff. If
+ipconfigALLOW_SOCKET_SEND_WITHOUT_BIND is set to 0 then calling FreeRTOS_sendto()
+on a socket that has not yet been bound will result in the send operation being
+aborted. */
+#define ipconfigALLOW_SOCKET_SEND_WITHOUT_BIND 1
+
+/* Defines the Time To Live (TTL) values used in outgoing UDP packets. */
+#define ipconfigUDP_TIME_TO_LIVE 128
+#define ipconfigTCP_TIME_TO_LIVE 128 /* also defined in FreeRTOSIPConfigDefaults.h */
+
+/* USE_TCP: Use TCP and all its features */
+#define ipconfigUSE_TCP ( 1 )
+
+/* USE_WIN: Let TCP use windowing mechanism. */
+#define ipconfigUSE_TCP_WIN ( 1 )
+
+/* The MTU is the maximum number of bytes the payload of a network frame can
+contain. For normal Ethernet V2 frames the maximum MTU is 1500. Setting a
+lower value can save RAM, depending on the buffer management scheme used. If
+ipconfigCAN_FRAGMENT_OUTGOING_PACKETS is 1 then (ipconfigNETWORK_MTU - 28) must
+be divisible by 8. */
+#define ipconfigNETWORK_MTU 1500
+
+/* Set ipconfigUSE_DNS to 1 to include a basic DNS client/resolver. DNS is used
+through the FreeRTOS_gethostbyname() API function. */
+#define ipconfigUSE_DNS 0
+
+/* If ipconfigREPLY_TO_INCOMING_PINGS is set to 1 then the IP stack will
+generate replies to incoming ICMP echo (ping) requests. */
+#define ipconfigREPLY_TO_INCOMING_PINGS 1
+
+/* If ipconfigSUPPORT_OUTGOING_PINGS is set to 1 then the
+FreeRTOS_SendPingRequest() API function is available. */
+#define ipconfigSUPPORT_OUTGOING_PINGS 0
+
+/* If ipconfigSUPPORT_SELECT_FUNCTION is set to 1 then the FreeRTOS_select()
+(and associated) API function is available. */
+#define ipconfigSUPPORT_SELECT_FUNCTION 1
+
+/* If ipconfigFILTER_OUT_NON_ETHERNET_II_FRAMES is set to 1 then Ethernet frames
+that are not in Ethernet II format will be dropped. This option is included for
+potential future IP stack developments. */
+#define ipconfigFILTER_OUT_NON_ETHERNET_II_FRAMES 1
+
+/* If ipconfigETHERNET_DRIVER_FILTERS_FRAME_TYPES is set to 1 then it is the
+responsibility of the Ethernet interface to filter out packets that are of no
+interest. If the Ethernet interface does not implement this functionality, then
+set ipconfigETHERNET_DRIVER_FILTERS_FRAME_TYPES to 0 to have the IP stack
+perform the filtering instead (it is much less efficient for the stack to do it
+because the packet will already have been passed into the stack). If the
+Ethernet driver does all the necessary filtering in hardware then software
+filtering can be removed by using a value other than 1 or 0. */
+#define ipconfigETHERNET_DRIVER_FILTERS_FRAME_TYPES 1
+
+/* The windows simulator cannot really simulate MAC interrupts, and needs to
+block occasionally to allow other tasks to run. */
+#define configWINDOWS_MAC_INTERRUPT_SIMULATOR_DELAY ( 20 / portTICK_PERIOD_MS )
+
+/* Advanced only: in order to access 32-bit fields in the IP packets with
+32-bit memory instructions, all packets will be stored 32-bit-aligned, plus 16-bits.
+This has to do with the contents of the IP-packets: all 32-bit fields are
+32-bit-aligned, plus 16-bit(!) */
+#define ipconfigPACKET_FILLER_SIZE 2
+
+/* Define the size of the pool of TCP window descriptors. On the average, each
+TCP socket will use up to 2 x 6 descriptors, meaning that it can have 2 x 6
+outstanding packets (for Rx and Tx). When using up to 10 TP sockets
+simultaneously, one could define TCP_WIN_SEG_COUNT as 120. */
+#define ipconfigTCP_WIN_SEG_COUNT 240
+
+/* Each TCP socket has a circular buffers for Rx and Tx, which have a fixed
+maximum size. Define the size of Rx buffer for TCP sockets. */
+#define ipconfigTCP_RX_BUFFER_LENGTH ( 2000 )
+
+/* Define the size of Tx buffer for TCP sockets. */
+#define ipconfigTCP_TX_BUFFER_LENGTH ( 2000 )
+
+/* When using call-back handlers, the driver may check if the handler points to
+real program memory (RAM or flash) or just has a random non-zero value. */
+#define ipconfigIS_VALID_PROG_ADDRESS(x) ( (x) != NULL )
+
+/* Include support for TCP hang protection. All sockets in a connecting or
+disconnecting stage will timeout after a period of non-activity. */
+#define ipconfigTCP_HANG_PROTECTION ( 1 )
+#define ipconfigTCP_HANG_PROTECTION_TIME ( 30 )
+
+/* Include support for TCP keep-alive messages. */
+#define ipconfigTCP_KEEP_ALIVE ( 1 )
+#define ipconfigTCP_KEEP_ALIVE_INTERVAL ( 20 ) /* in seconds */
+
+#define ipconfigETHERNET_DRIVER_FILTERS_FRAME_TYPES 1
+#define ipconfigDRIVER_INCLUDED_TX_IP_CHECKSUM 1
+#define ipconfigDRIVER_INCLUDED_RX_IP_CHECKSUM 1
+#define ipconfigZERO_COPY_RX_DRIVER 1
+#define ipconfigZERO_COPY_TX_DRIVER 1
+#define ipconfigUSE_LINKED_RX_MESSAGES 1
diff --git a/ext/aws/FreeRTOSIPConfig.h.in b/ext/aws/FreeRTOSIPConfig.h.in
index 033f945017..bef1ec884a 100644
--- a/ext/aws/FreeRTOSIPConfig.h.in
+++ b/ext/aws/FreeRTOSIPConfig.h.in
@@ -28,286 +28,41 @@
#ifndef FREERTOS_IP_CONFIG_H
#define FREERTOS_IP_CONFIG_H
-/* Prototype for the function used to print out. In this case it prints to the
-console before the network is connected then a UDP port after the network has
-connected. */
-//extern void vLoggingPrintf( const char *pcFormatString, ... );
-extern void vPrintf(char const *format, ...);
+#define ipconfigBYTE_ORDER pdFREERTOS_LITTLE_ENDIAN
-/* Set to 1 to print out debug messages. If ipconfigHAS_DEBUG_PRINTF is set to
-1 then FreeRTOS_debug_printf should be defined to the function used to print
-out the debugging messages. */
-#define ipconfigHAS_DEBUG_PRINTF 0
-#if( ipconfigHAS_DEBUG_PRINTF == 1 )
- #define FreeRTOS_debug_printf(X) vLoggingPrintf X
+/* A header file that overwrites with local project settings. */
+#if __has_include()
+# include
#endif
-/* Set to 1 to print out non debugging messages, for example the output of the
-FreeRTOS_netstat() command, and ping replies. If ipconfigHAS_PRINTF is set to 1
-then FreeRTOS_printf should be set to the function used to print out the
-messages. */
-#define ipconfigHAS_PRINTF 0
-#if( ipconfigHAS_PRINTF == 1 )
- #define FreeRTOS_printf(X) vLoggingPrintf X
+#ifndef ipconfigIP_TASK_STACK_SIZE_WORDS
+#define ipconfigIP_TASK_STACK_SIZE_WORDS (configMINIMAL_STACK_SIZE * 4)
#endif
-/* Define the byte order of the target MCU (the MCU FreeRTOS+TCP is executing
-on). Valid options are pdFREERTOS_BIG_ENDIAN and pdFREERTOS_LITTLE_ENDIAN. */
-#define ipconfigBYTE_ORDER pdFREERTOS_LITTLE_ENDIAN
-
-/* If the network card/driver includes checksum offloading (IP/TCP/UDP checksums)
-then set ipconfigDRIVER_INCLUDED_RX_IP_CHECKSUM to 1 to prevent the software
-stack repeating the checksum calculations. */
-#define ipconfigDRIVER_INCLUDED_RX_IP_CHECKSUM 1
-#define ipconfigDRIVER_INCLUDED_TX_IP_CHECKSUM 1
-
-/* Several API's will block until the result is known, or the action has been
-performed, for example FreeRTOS_send() and FreeRTOS_recv(). The timeouts can be
-set per socket, using setsockopt(). If not set, the times below will be
-used as defaults. */
-#define ipconfigSOCK_DEFAULT_RECEIVE_BLOCK_TIME ( 5000 )
-#define ipconfigSOCK_DEFAULT_SEND_BLOCK_TIME ( 5000 )
-
-/* Include support for LLMNR: Link-local Multicast Name Resolution
-(non-Microsoft) */
-#define ipconfigUSE_LLMNR ( 0 )
-
-/* Include support for NBNS: NetBIOS Name Service (Microsoft) */
-#define ipconfigUSE_NBNS ( 0 )
-
-/* Include support for DNS caching. For TCP, having a small DNS cache is very
-useful. When a cache is present, ipconfigDNS_REQUEST_ATTEMPTS can be kept low
-and also DNS may use small timeouts. If a DNS reply comes in after the DNS
-socket has been destroyed, the result will be stored into the cache. The next
-call to FreeRTOS_gethostbyname() will return immediately, without even creating
-a socket. */
-#define ipconfigUSE_DNS_CACHE ( 1 )
-#define ipconfigDNS_CACHE_NAME_LENGTH ( 16 )
-#define ipconfigDNS_CACHE_ENTRIES ( 4 )
-#define ipconfigDNS_REQUEST_ATTEMPTS ( 2 )
-
-/* The IP stack executes it its own task (although any application task can make
-use of its services through the published sockets API). ipconfigUDP_TASK_PRIORITY
-sets the priority of the task that executes the IP stack. The priority is a
-standard FreeRTOS task priority so can take any value from 0 (the lowest
-priority) to (configMAX_PRIORITIES - 1) (the highest priority).
-configMAX_PRIORITIES is a standard FreeRTOS configuration parameter defined in
-FreeRTOSConfig.h, not FreeRTOSIPConfig.h. Consideration needs to be given as to
-the priority assigned to the task executing the IP stack relative to the
-priority assigned to tasks that use the IP stack. */
-#define ipconfigIP_TASK_PRIORITY ( configMAX_PRIORITIES - 2 )
-
-/* The size, in words (not bytes), of the stack allocated to the FreeRTOS+TCP
-task. This setting is less important when the FreeRTOS Win32 simulator is used
-as the Win32 simulator only stores a fixed amount of information on the task
-stack. FreeRTOS includes optional stack overflow detection, see:
-http://www.freertos.org/Stacks-and-stack-overflow-checking.html */
-#define ipconfigIP_TASK_STACK_SIZE_WORDS ( configMINIMAL_STACK_SIZE * 5 )
-
-/* ipconfigRAND32() is called by the IP stack to generate random numbers for
-things such as a DHCP transaction number or initial sequence number. Random
-number generation is performed via this macro to allow applications to use their
-own random number generation method. For example, it might be possible to
-generate a random number by sampling noise on an analogue input. */
-extern UBaseType_t uxRand(void);
-#define ipconfigRAND32() uxRand()
-
-/* If ipconfigUSE_NETWORK_EVENT_HOOK is set to 1 then FreeRTOS+TCP will call the
-network event hook at the appropriate times. If ipconfigUSE_NETWORK_EVENT_HOOK
-is not set to 1 then the network event hook will never be called. See
-http://www.FreeRTOS.org/FreeRTOS-Plus/FreeRTOS_Plus_UDP/API/vApplicationIPNetworkEventHook.shtml
-*/
-#define ipconfigUSE_NETWORK_EVENT_HOOK 1
-
-/* Sockets have a send block time attribute. If FreeRTOS_sendto() is called but
-a network buffer cannot be obtained then the calling task is held in the Blocked
-state (so other tasks can continue to executed) until either a network buffer
-becomes available or the send block time expires. If the send block time expires
-then the send operation is aborted. The maximum allowable send block time is
-capped to the value set by ipconfigMAX_SEND_BLOCK_TIME_TICKS. Capping the
-maximum allowable send block time prevents prevents a deadlock occurring when
-all the network buffers are in use and the tasks that process (and subsequently
-free) the network buffers are themselves blocked waiting for a network buffer.
-ipconfigMAX_SEND_BLOCK_TIME_TICKS is specified in RTOS ticks. A time in
-milliseconds can be converted to a time in ticks by dividing the time in
-milliseconds by portTICK_PERIOD_MS. */
-#define ipconfigUDP_MAX_SEND_BLOCK_TIME_TICKS ( 5000 / portTICK_PERIOD_MS )
-
-/* If ipconfigUSE_DHCP is 1 then FreeRTOS+TCP will attempt to retrieve an IP
-address, netmask, DNS server address and gateway address from a DHCP server. If
-ipconfigUSE_DHCP is 0 then FreeRTOS+TCP will use a static IP address. The
-stack will revert to using the static IP address even when ipconfigUSE_DHCP is
-set to 1 if a valid configuration cannot be obtained from a DHCP server for any
-reason. The static configuration used is that passed into the stack by the
-FreeRTOS_IPInit() function call. */
-#define ipconfigUSE_DHCP 0
-
-/* When ipconfigUSE_DHCP is set to 1, DHCP requests will be sent out at
-increasing time intervals until either a reply is received from a DHCP server
-and accepted, or the interval between transmissions reaches
-ipconfigMAXIMUM_DISCOVER_TX_PERIOD. The IP stack will revert to using the
-static IP address passed as a parameter to FreeRTOS_IPInit() if the
-re-transmission time interval reaches ipconfigMAXIMUM_DISCOVER_TX_PERIOD without
-a DHCP reply being received. */
-#define ipconfigMAXIMUM_DISCOVER_TX_PERIOD ( 120000 / portTICK_PERIOD_MS )
-
-/* The ARP cache is a table that maps IP addresses to MAC addresses. The IP
-stack can only send a UDP message to a remove IP address if it knowns the MAC
-address associated with the IP address, or the MAC address of the router used to
-contact the remote IP address. When a UDP message is received from a remote IP
-address the MAC address and IP address are added to the ARP cache. When a UDP
-message is sent to a remote IP address that does not already appear in the ARP
-cache then the UDP message is replaced by a ARP message that solicits the
-required MAC address information. ipconfigARP_CACHE_ENTRIES defines the maximum
-number of entries that can exist in the ARP table at any one time. */
-#define ipconfigARP_CACHE_ENTRIES 6
-
-/* ARP requests that do not result in an ARP response will be re-transmitted a
-maximum of ipconfigMAX_ARP_RETRANSMISSIONS times before the ARP request is
-aborted. */
-#define ipconfigMAX_ARP_RETRANSMISSIONS ( 5 )
-
-/* ipconfigMAX_ARP_AGE defines the maximum time between an entry in the ARP
-table being created or refreshed and the entry being removed because it is stale.
-New ARP requests are sent for ARP cache entries that are nearing their maximum
-age. ipconfigMAX_ARP_AGE is specified in tens of seconds, so a value of 150 is
-equal to 1500 seconds (or 25 minutes). */
-#define ipconfigMAX_ARP_AGE 150
-
-/* Implementing FreeRTOS_inet_addr() necessitates the use of string handling
-routines, which are relatively large. To save code space the full
-FreeRTOS_inet_addr() implementation is made optional, and a smaller and faster
-alternative called FreeRTOS_inet_addr_quick() is provided. FreeRTOS_inet_addr()
-takes an IP in decimal dot format (for example, "192.168.0.1") as its parameter.
-FreeRTOS_inet_addr_quick() takes an IP address as four separate numerical octets
-(for example, 192, 168, 0, 1) as its parameters. If
-ipconfigINCLUDE_FULL_INET_ADDR is set to 1 then both FreeRTOS_inet_addr() and
-FreeRTOS_indet_addr_quick() are available. If ipconfigINCLUDE_FULL_INET_ADDR is
-not set to 1 then only FreeRTOS_indet_addr_quick() is available. */
-#define ipconfigINCLUDE_FULL_INET_ADDR 1
-
-/* ipconfigNUM_NETWORK_BUFFER_DESCRIPTORS defines the total number of network buffer that
-are available to the IP stack. The total number of network buffers is limited
-to ensure the total amount of RAM that can be consumed by the IP stack is capped
-to a pre-determinable value. */
-#define ipconfigNUM_NETWORK_BUFFER_DESCRIPTORS 60
-
-/* A FreeRTOS queue is used to send events from application tasks to the IP
-stack. ipconfigEVENT_QUEUE_LENGTH sets the maximum number of events that can
-be queued for processing at any one time. The event queue must be a minimum of
-5 greater than the total number of network buffers. */
-#define ipconfigEVENT_QUEUE_LENGTH ( ipconfigNUM_NETWORK_BUFFER_DESCRIPTORS + 5 )
-
-/* The address of a socket is the combination of its IP address and its port
-number. FreeRTOS_bind() is used to manually allocate a port number to a socket
-(to 'bind' the socket to a port), but manual binding is not normally necessary
-for client sockets (those sockets that initiate outgoing connections rather than
-wait for incoming connections on a known port number). If
-ipconfigALLOW_SOCKET_SEND_WITHOUT_BIND is set to 1 then calling
-FreeRTOS_sendto() on a socket that has not yet been bound will result in the IP
-stack automatically binding the socket to a port number from the range
-socketAUTO_PORT_ALLOCATION_START_NUMBER to 0xffff. If
-ipconfigALLOW_SOCKET_SEND_WITHOUT_BIND is set to 0 then calling FreeRTOS_sendto()
-on a socket that has not yet been bound will result in the send operation being
-aborted. */
-#define ipconfigALLOW_SOCKET_SEND_WITHOUT_BIND 1
-
-/* Defines the Time To Live (TTL) values used in outgoing UDP packets. */
-#define ipconfigUDP_TIME_TO_LIVE 128
-#define ipconfigTCP_TIME_TO_LIVE 128 /* also defined in FreeRTOSIPConfigDefaults.h */
-
-/* USE_TCP: Use TCP and all its features */
-#define ipconfigUSE_TCP ( 1 )
-
-/* USE_WIN: Let TCP use windowing mechanism. */
-#define ipconfigUSE_TCP_WIN ( 1 )
-
-/* The MTU is the maximum number of bytes the payload of a network frame can
-contain. For normal Ethernet V2 frames the maximum MTU is 1500. Setting a
-lower value can save RAM, depending on the buffer management scheme used. If
-ipconfigCAN_FRAGMENT_OUTGOING_PACKETS is 1 then (ipconfigNETWORK_MTU - 28) must
-be divisible by 8. */
-#define ipconfigNETWORK_MTU 1500
-
-/* Set ipconfigUSE_DNS to 1 to include a basic DNS client/resolver. DNS is used
-through the FreeRTOS_gethostbyname() API function. */
-#define ipconfigUSE_DNS 0
-
-/* If ipconfigREPLY_TO_INCOMING_PINGS is set to 1 then the IP stack will
-generate replies to incoming ICMP echo (ping) requests. */
-#define ipconfigREPLY_TO_INCOMING_PINGS 1
-
-/* If ipconfigSUPPORT_OUTGOING_PINGS is set to 1 then the
-FreeRTOS_SendPingRequest() API function is available. */
-#define ipconfigSUPPORT_OUTGOING_PINGS 0
-
-/* If ipconfigSUPPORT_SELECT_FUNCTION is set to 1 then the FreeRTOS_select()
-(and associated) API function is available. */
-#define ipconfigSUPPORT_SELECT_FUNCTION 1
-
-/* If ipconfigFILTER_OUT_NON_ETHERNET_II_FRAMES is set to 1 then Ethernet frames
-that are not in Ethernet II format will be dropped. This option is included for
-potential future IP stack developments. */
-#define ipconfigFILTER_OUT_NON_ETHERNET_II_FRAMES 1
-
-/* If ipconfigETHERNET_DRIVER_FILTERS_FRAME_TYPES is set to 1 then it is the
-responsibility of the Ethernet interface to filter out packets that are of no
-interest. If the Ethernet interface does not implement this functionality, then
-set ipconfigETHERNET_DRIVER_FILTERS_FRAME_TYPES to 0 to have the IP stack
-perform the filtering instead (it is much less efficient for the stack to do it
-because the packet will already have been passed into the stack). If the
-Ethernet driver does all the necessary filtering in hardware then software
-filtering can be removed by using a value other than 1 or 0. */
-#define ipconfigETHERNET_DRIVER_FILTERS_FRAME_TYPES 1
-
-/* The windows simulator cannot really simulate MAC interrupts, and needs to
-block occasionally to allow other tasks to run. */
-#define configWINDOWS_MAC_INTERRUPT_SIMULATOR_DELAY ( 20 / portTICK_PERIOD_MS )
-
-/* Advanced only: in order to access 32-bit fields in the IP packets with
-32-bit memory instructions, all packets will be stored 32-bit-aligned, plus 16-bits.
-This has to do with the contents of the IP-packets: all 32-bit fields are
-32-bit-aligned, plus 16-bit(!) */
-#define ipconfigPACKET_FILLER_SIZE 2
-
-/* Define the size of the pool of TCP window descriptors. On the average, each
-TCP socket will use up to 2 x 6 descriptors, meaning that it can have 2 x 6
-outstanding packets (for Rx and Tx). When using up to 10 TP sockets
-simultaneously, one could define TCP_WIN_SEG_COUNT as 120. */
-#define ipconfigTCP_WIN_SEG_COUNT 240
-
-/* Each TCP socket has a circular buffers for Rx and Tx, which have a fixed
-maximum size. Define the size of Rx buffer for TCP sockets. */
-#define ipconfigTCP_RX_BUFFER_LENGTH ( 2000 )
-
-/* Define the size of Tx buffer for TCP sockets. */
-#define ipconfigTCP_TX_BUFFER_LENGTH ( 2000 )
-
-/* When using call-back handlers, the driver may check if the handler points to
-real program memory (RAM or flash) or just has a random non-zero value. */
-#define ipconfigIS_VALID_PROG_ADDRESS(x) ( (x) != NULL )
-
-/* Include support for TCP hang protection. All sockets in a connecting or
-disconnecting stage will timeout after a period of non-activity. */
-#define ipconfigTCP_HANG_PROTECTION ( 1 )
-#define ipconfigTCP_HANG_PROTECTION_TIME ( 30 )
-
-/* Include support for TCP keep-alive messages. */
-#define ipconfigTCP_KEEP_ALIVE ( 1 )
-#define ipconfigTCP_KEEP_ALIVE_INTERVAL ( 20 ) /* in seconds */
-
-#define portINLINE __inline
+#ifndef ipconfigIP_TASK_PRIORITY
+#define ipconfigIP_TASK_PRIORITY (configMAX_PRIORITIES - 2)
+#endif
-#define ipconfigETHERNET_DRIVER_FILTERS_FRAME_TYPES 1
-#define ipconfigDRIVER_INCLUDED_TX_IP_CHECKSUM 1
-#define ipconfigDRIVER_INCLUDED_RX_IP_CHECKSUM 1
-#define ipconfigZERO_COPY_RX_DRIVER 1
-#define ipconfigZERO_COPY_TX_DRIVER 1
-#define ipconfigUSE_LINKED_RX_MESSAGES 1
+%% if with_debug
+#if defined(ipconfigHAS_PRINTF) && ipconfigHAS_PRINTF && !defined(FreeRTOS_printf)
+#ifdef __cplusplus
+ extern "C"
+#else
+ extern
+#endif
+ void modm_freertos_printf(char const *fmt, ...);
+# define FreeRTOS_printf(X) modm_freertos_printf(X)
+#endif
-/* A header file that overwrites with local project settings. */
-#if __has_include()
-#include
+#if defined(ipconfigHAS_DEBUG_PRINTF) && ipconfigHAS_DEBUG_PRINTF && !defined(FreeRTOS_debug_printf)
+#ifdef __cplusplus
+ extern "C"
+#else
+ extern
+#endif
+ void modm_freertos_printf_debug(char const *fmt, ...);
+# define FreeRTOS_debug_printf(X) modm_freertos_printf_debug(X)
#endif
+%% endif
#endif // FREERTOS_IP_CONFIG_H
diff --git a/ext/aws/freertos_tcp.md b/ext/aws/freertos_tcp.md
new file mode 100644
index 0000000000..3600e69501
--- /dev/null
+++ b/ext/aws/freertos_tcp.md
@@ -0,0 +1,41 @@
+# FreeRTOS+TCP
+
+Amazon FreeRTOS+TCP is a scalable, open source and thread safe TCP/IP stack for
+FreeRTOS. FreeRTOS+TCP's features and RAM footprint are fully scalable, making
+it equally applicable to smaller lower throughput microcontrollers as larger
+higher throughput microprocessors.
+
+This module provides the latest FreeRTOS+TCP LTS release integrated with modm:
+
+- `FreeRTOS_printf()` and `FreeRTOS_debug_printf()` forwarded to `modm:debug`.
+
+
+## Configuration
+
+This module generates a `FreeRTOSIPConfig.h` config file for modm integration
+with these overwritable settings:
+
+- `ipconfigIP_TASK_STACK_SIZE_WORDS` = `(configMINIMAL_STACK_SIZE * 4)`
+- `ipconfigIP_TASK_PRIORITY` = `(configMAX_PRIORITIES - 2)`
+- `FreeRTOS_printf(x)` = `MODM_LOG_INFO.printf(x)`
+- `FreeRTOS_debug_printf(x)` = `MODM_LOG_DEBUG.printf(x)`
+
+All other config settings are unchanged by modm and are defaulted by FreeRTOS
+itself, please refer to the [FreeRTOS+TCP Config documentation][config] to
+understand what each of these do.
+
+To change a configuration setting, define a `` file,
+which is included *before* the optional settings, so you can overwrite them
+easily.
+
+An example `` file:
+
+```c
+// Change IP task stack size
+#define ipconfigIP_TASK_STACK_SIZE_WORDS 1024
+// Enable printing
+#define ipconfigHAS_PRINTF 1
+#define ipconfigHAS_DEBUG_PRINTF 1
+```
+
+[config]: https://www.freertos.org/FreeRTOS-Plus/FreeRTOS_Plus_TCP/TCP_IP_Configuration.html
diff --git a/ext/aws/modm_port.cpp b/ext/aws/modm_port.cpp.in
similarity index 79%
rename from ext/aws/modm_port.cpp
rename to ext/aws/modm_port.cpp.in
index 8d1e8a98b2..f35f8fa8cc 100644
--- a/ext/aws/modm_port.cpp
+++ b/ext/aws/modm_port.cpp.in
@@ -64,3 +64,24 @@ void vPortFree(void *pv)
traceFREE(pv, 0);
}
}
+
+%% if with_debug
+#include
+
+extern "C" void modm_freertos_printf(char const *fmt, ...);
+void modm_freertos_printf(char const *fmt, ...)
+{
+ va_list va;
+ va_start(va, fmt);
+ MODM_LOG_INFO.vprintf(fmt, va);
+ va_end(va);
+}
+extern "C" void modm_freertos_printf_debug(char const *fmt, ...);
+void modm_freertos_printf_debug(char const *fmt, ...)
+{
+ va_list va;
+ va_start(va, fmt);
+ MODM_LOG_DEBUG.vprintf(fmt, va);
+ va_end(va);
+}
+%% endif
diff --git a/ext/aws/module.lb b/ext/aws/module.lb
index b9fd4a4602..5da6b250c2 100644
--- a/ext/aws/module.lb
+++ b/ext/aws/module.lb
@@ -36,27 +36,15 @@ This module implements TCP over Ethernet via the LAN8720A transceiver.
class FreeRTOS_TCP(Module):
def init(self, module):
module.name = "tcp"
- module.description = """
-# a:FreeRTOS-Plus-TCP
-
-This module defines a default FreeRTOS IP config. If you need to change a
-configuration setting, then you can define a `FreeRTOSConfigIPLocal.h` file, which
-is included *after* at the end of the config. You must therefore first `#undef`
-the config macros, then redefine them with your options, for example:
-
-```c
-#undef ipconfigUSE_DNS
-#define ipconfigUSE_DNS 1
-```
-"""
+ module.description = FileReader("freertos_tcp.md")
def prepare(self, module, options):
module.add_submodule(FreeRTOS_TCP_LAN8720A())
- module.depends(":platform:heap")
return True
def build(self, env):
env.outbasepath = "modm/ext"
+ env.substitutions = {"with_debug": env.has_module(":debug")}
env.copy("freertos/FreeRTOS-Plus-TCP", "freertos_plus_tcp",
ignore=env.ignore_files("portable"))
env.copy("freertos/FreeRTOS-Plus-TCP/portable/BufferManagement/BufferAllocation_2.c", "freertos_plus_tcp/BufferAllocation_2.c")
@@ -106,7 +94,8 @@ def build(env):
core = env[":target"].get_driver("core")["type"]
env.substitutions = {
"core": core,
- "frequency": env.get("frequency", 1000)
+ "frequency": env.get("frequency", 1000),
+ "with_debug": env.has_module(":debug")
}
path = core.replace("cortex-m", "ARM_CM").replace("+", "").replace("fd", "f").upper()
path = path.replace("CM7F", "CM7/r0p1") # use subfolder for M7
@@ -114,7 +103,7 @@ def build(env):
env.outbasepath = "modm/ext"
# Copy our own modm-specific port
- env.copy("modm_port.cpp", "freertos/modm_port.cpp")
+ env.template("modm_port.cpp.in", "freertos/modm_port.cpp")
# Copy the entire source folder, minus portable folder and some files.
env.copy("freertos/FreeRTOS/Source", "freertos",
ignore=env.ignore_files("*.txt", "*.readme", "portable", "include"))