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Kernel
About FreeRTOS Kernel
Developer Docs
Secondary Docs
Supported Devices
API Reference
Licensing
Emulation/Simulation
QEMU (Cortex-M3)
Windows Simulator
Posix/Linux Simulator
Libraries
new
LTS Libraries
All libraries
FreeRTOS Plus
Introduction
FreeRTOS+TCP
FreeRTOS+CLI
FreeRTOS+IO
Backoff Algorithm
FreeRTOS Core
Introduction
coreMQTT
coreMQTT Agent
coreHTTP
coreSNTP
Transport Interface
coreJSON
corePKCS11
Cellular Interface
FreeRTOS for AWS
Introduction
AWS IoT OTA
AWS IoT Device Shadow
AWS IoT Jobs
AWS IoT Device Defender
AWS IoT Fleet Provisioning
AWS Signature Version 4
AWS Quick Connect Demos
AWS Reference Integrations
FreeRTOS Labs
Introduction
LoRaWAN
FreeRTOS+POSIX
FreeRTOS+FAT
FreeRTOS+TCP IPv6
FreeRTOS+TCP Multiple Interfaces
FreeRTOS MCUBoot
Delta Over-the-Air Updates
Featured Integrations
Introduction
i.MX RT1060 Arm Cortex-M7 MCU & EdgeLock SE050
STM32U5 Arm Cortex-M33 MCU w/ TrustZone & TF-M
ESP32-C3 RISC-V MCU w/ DSP
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FreeRTOS+TCP
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Receiving UDP Data (standard)
Receiving UDP Data (zero copy)
Buffer Mgmt. & Performance
Configuration File
Configuration Examples
Trace Macros
API Reference
Primary Socket API
FreeRTOS_socket
FreeRTOS_bind
FreeRTOS_connect
FreeRTOS_listen
FreeRTOS_accept
FreeRTOS_send
FreeRTOS_sendto
FreeRTOS_recv
FreeRTOS_recvfrom
FreeRTOS_setsockopt
FreeRTOS_shutdown
FreeRTOS_closesocket
FreeRTOS_select
Misc Socket API
FreeRTOS_CreateSocketSet
FreeRTOS_FD_SET
FreeRTOS_FD_CLR
FreeRTOS_FD_ISSET
FreeRTOS_gethostbyname
FreeRTOS_inet_ntoa
FreeRTOS_inet_addr_quick
FreeRTOS_inet_addr
FreeRTOS_htons
FreeRTOS_htonl
FreeRTOS_ntohs
FreeRTOS_ntohl
FreeRTOS_outstanding
FreeRTOS_recvcount
FreeRTOS_issocketconnected
FreeRTOS_GetLocalAddress
FreeRTOS_GetRemoteAddress
FreeRTOS_maywrite
FreeRTOS+TCP API
FreeRTOS_IpInit
FreeRTOS_GetAddressConfiguration
FreeRTOS_GetUDPPayloadBuffer
FreeRTOS_ReleaseUDPPayloadBuffer
FreeRTOS_SendPingRequest
FreeRTOS_GetMACAddress
FreeRTOS_GetIPAddress
FreeRTOS_GetGatewayAddress
FreeRTOS_GetDNSServerAddress
FreeRTOS_GetNetmask
FreeRTOS_OutputARPRequest
FreeRTOS_IsNetworkUp
FreeRTOS_SetAddressConfiguration
FreeRTOS_SetGatewayAddress
FreeRTOS_SetIPAddress
FreeRTOS_SetNetmask
FreeRTOS_SignalSocket
Hook/Callback API
eApplicationProcessCustomFrameHook
pcApplicationHostnameHook
vApplicationIPNetworkEventHook
vApplicationPingReplyHook
xApplicationDHCPHook
xApplicationDNSQueryHook
Application provided functions
ulApplicationGetNextSequenceNumber
xApplicationGetRandomNumber
Porting
Changing Compiler
Changing Hardware
Porting API
pxGetNetworkBufferWithDescriptor
vReleaseNetworkBufferAndDescriptor
pucGetNetworkBuffer
vReleaseNetworkBuffer
eConsiderFrameForProcessing
xSendEventStructToIPTask
Demos
Pre-configured Examples
Build Instructions
TCP Examples
TCP Basic (Windows)
TCP Basic (Posix/Linux)
UDP IO for CLI
TCP IO for CLI
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UDP Client and Server
Using FreeRTOS_select()
UDP Echo Clients
TCP Echo Clients
TCP Echo Clients (split)
TCP Echo Server
TCP and FAT Examples
FTP Server
HTTP Web Server
MIT Licensing
WHAT'S NEW
Featured FreeRTOS IoT Integrations:
Introducing three featured integrations for more secure IoT applications. See the
blog post
.
Extended Maintenance Plan (EMP):
Announcing the EMP for FreeRTOS, provided by AWS. See the
blog post
.
Delta Over-the-Air Updates:
Announcing Delta OTA updates. See the
blog post
.
December 2021 Releases:
Include MCUBoot demo and a new FreeRTOS download. See the
blog post
.
FreeRTOS LTS libraries:
The LTS libraries are now included in our partner toolchains. See the
blog post
.
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FreeRTOS+TCP API
Primary Sockets Functions
FreeRTOS_socket()
FreeRTOS_bind()
FreeRTOS_connect()
FreeRTOS_listen()
FreeRTOS_accept()
FreeRTOS_send()
FreeRTOS_sendto()
FreeRTOS_recv()
FreeRTOS_recvfrom()
FreeRTOS_setsockopt()
FreeRTOS_shutdown()
FreeRTOS_closesocket()
FreeRTOS_select()
Miscellaneous Sockets functions
Propitiatory socket functions are lower case to match Berkeley convention.
FreeRTOS_gethostbyname()
FreeRTOS_CreateSocketSet()
FreeRTOS_FD_SET()
FreeRTOS_FD_CLR()
FreeRTOS_ISSET()
FreeRTOS_inet_addr()
FreeRTOS_inet_addr_quick()
FreeRTOS_inet_ntoa()
FreeRTOS_htons()
FreeRTOS_ntohs()
FreeRTOS_htonl()
FreeRTOS_ntohl()
FreeRTOS_outstanding()
FreeRTOS_recvcount()
FreeRTOS_issocketconnected()
FreeRTOS_GetLocalAddress()
FreeRTOS_GetRemoteAddress()
FreeRTOS_maywrite()
IP functions
Propitiatory IP functions are mixed case to match FreeRTOS convention.
FreeRTOS_IPInit()
FreeRTOS_GetUDPPayloadBuffer()
FreeRTOS_ReleaseUDPPayloadBuffer()
FreeRTOS_SendPingRequest()
FreeRTOS_GetAddressConfiguration()
FreeRTOS_GetMACAddress()
FreeRTOS_GetIPAddress()
FreeRTOS_GetGatewayAddress()
FreeRTOS_GetDNSServerAddress()
FreeRTOS_GetNetmask()
FreeRTOS_OutputARPRequest()
FreeRTOS_IsNetworkUp()
FreeRTOS_SetAddressConfiguration()
FreeRTOS_SetGatewayAddress()
FreeRTOS_SetIPAddress()
FreeRTOS_SetNetmask()
FreeRTOS_SignalSocket()
Event hook functions
eApplicationProcessCustomFrameHook()
pcApplicationHostnameHook()
vApplicationIPNetworkEventHook()
vApplicationPingReplyHook()
xApplicationDHCPHook()
xApplicationDNSQueryHook()
Application provided functions
ulApplicationGetNextSequenceNumber()
xApplicationGetRandomNumber()
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