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Add nRF24 receive message buffering (#538)

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* Add critical section support

Allows defining a code block which is executed as a critical section.
Supports AVR, ESP8266 & SAMD.

* Add receive message buffering

When MY_RF24_IRQ_PIN is defined (and connected), a buffer will be used
to retrieve & store messages received by nRF24 as fast as possible.
This reduces the chance of losing messages due to a busy
microcontroller.
nRF24 SPI rx message transfer is running from interrupt context when
MY_RF24_IRQ_PIN is defined. If this transfer takes too long, serial
characters received will get lost. Therefore serial rx is enabled during
SPI transfer of nRF messages.

Limitations: Only AVR/SAMD & nRF24L01+ combinations can buffer rx
messages.
nRF24L01+ IRQ pin should be connected to AVR.
Tested on W5100- & Serial-gateway.

SAMD has not been tested yet!

* Fix Doxygen warnings

* Fix more Doxygen warnings
This commit is contained in:
Embedded Innovation
2016-08-02 22:20:25 +02:00
committed by Olivier
parent 4695cc71dd
commit 99973a346e
12 changed files with 483 additions and 9 deletions
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keywords.txt
+4 -1
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@@ -74,6 +74,7 @@ MY_RF24_ENABLE_ENCRYPTION LITERAL1
MY_RF24_SPI_MAX_SPEED LITERAL1
MY_RF24_CE_PIN LITERAL1
MY_RF24_CS_PIN LITERAL1
MY_RF24_IRQ_PIN LITERAL1
MY_RF24_PA_LEVEL LITERAL1
MY_RF24_CHANNEL LITERAL1
MY_RF24_DATARATE LITERAL1
@@ -126,4 +127,6 @@ MY_SMART_SLEEP_WAIT_DURATION LITERAL1
MY_NODE_LOCK_FEATURE LITERAL1
MY_NODE_UNLOCK_PIN LITERAL1
MY_NODE_LOCK_COUNTER_MAX LITERAL1
MY_SPIFLASH_SST25TYPE LITERAL1
MY_SPIFLASH_SST25TYPE LITERAL1
MY_CRITICAL_SECTION LITERAL1
MY_RX_MESSAGE_BUFFER_SIZE LITERAL1