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Add nrf5 platform (#830)

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* Add NVRAM support

This is an EEPROM replacement based on MCU's internal Flash memory.
The NVRAM class is designed to be stateless. Each operation is
written to flash immediately.

The last 16k(nRF51)/32k(nRF52) of Flash memory are managed by the
VirtualPage class.  This class allows writing a single emulated 4k
page up 40,000 times.

The NVRAM class is a log based byte-wise storage allowing up to
40,000,000 writes depending on the number of used addresses.  Each
four allocated addresses from the beginning of the NVRAM reduce the
write log by one.

When first 256 bytes of the emulated storage are used, there is an
average writing capacity of 145,000 cycles per byte.

When the write log is full, the NVRAM is compressed into a new flash
page. After a new page is ready, the old page is released. This
process can take up to 4500 ms and cannot be interrupted.

The NVRAM functionality can easily be ported to ESP8266 or SAMD by
providing a Flash interface.

* Add NRF5 platform support

This is the support of the Nordic Semiconductor NRF51 (nrf51822,
nrf51422) and NRF52 (nrf52832) platform. Based on arduino-nRF5
(https://github.com/sandeepmistry/arduino-nRF5).

The included radio driver is compatible with the NRF24 devices.
Using a SoftDevice (BLE)is not supported and must be removed before
flashing MySensors with a "mass_erase" operation.
This commit is contained in:
d00616
2017-05-14 11:53:01 +02:00
committed by Olivier
parent a4c7b249c1
commit 726a20dad9
26 changed files with 3576 additions and 11 deletions
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keywords.txt
+12 -1
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@@ -108,6 +108,17 @@ MY_RF24_CHANNEL LITERAL1
MY_RF24_DATARATE LITERAL1
MY_RF24_BASE_RADIO_ID LITERAL1
# NRF5
MY_RADIO_NRF5_ESB LITERAL1
MY_DEBUG_VERBOSE_NRF5_ESB LITERAL1
MY_NRF5_ESB_ADDR_WIDTH LITERAL1
MY_NRF5_ESB_BASE_RADIO_ID LITERAL1
MY_NRF5_ESB_CHANNEL LITERAL1
MY_NRF5_ESB_ENABLE_ENCRYPTION LITERAL1
MY_NRF5_ESB_MODE LITERAL1
MY_NRF5_ESB_PA_LEVEL LITERAL1
MY_NRF5_ESB_RX_BUFFER_SIZE LITERAL1
# RFM95
MY_RADIO_RFM95 LITERAL1
MY_DEBUG_VERBOSE_RFM95 LITERAL1
@@ -185,4 +196,4 @@ MY_IP_SUBNET_ADDRESS LITERAL1
MY_ESP8266_SSID LITERAL1
MY_ESP8266_PASSWORD LITERAL1
MY_ESP8266_HOSTNAME LITERAL1
MY_ESP8266_SERIAL_MODE LITERAL1
MY_ESP8266_SERIAL_MODE LITERAL1