FreeRTOS+UDP was removed from the FreeRTOS kernel download from
FreeRTOS V10.1.0. See the FreeRTOS+TCP stack, which can be
configured for UDP only use, as an alternative.
void vEthernetBufferRelease( uint8_t *pucEthernetBuffer );
Returns to the IP stack an
that was previously obtained from the IP stack by a call to
vEthernetBufferRelease() must not be called from an interrupt service routine (ISR).
A pointer to the Ethernet buffer being released
(returned to the IP stack).
Examples are provided on the
Porting FreeRTOS to a Different Microcontroller
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