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Lora Gateway HAL changelog
==========================
v1.2.1
---------------------
* Fixed 'floating point exception' crash when concentrator returned a packet with SF=0 (CRC error on Lora header)
* Fixed buggy timezone handling
v1.2.0
---------------------
* Added feature: new GPS module in the library for synchronization
* Removed feature: no more missed deadline detection in TX because of incompatibility with GPS
* Added documentation for GPS and legal notice
* Added flags in Makefiles for easier cross-compilation
v1.1.0
---------------------
* Fixed bug 'no TX on radio B' (rfch 1)
* Added feature: concentrator processing delay compensation in the receive() function for accurate 'end of packet' even timestamping
* Added feature: TX 'start delay' compensation in the send() function to emit packet exactly on target timestamp
* Added feature: timestamp counter verification in send() function, return an error if scheduling was too late
* Switched license to 'Revised BSD'
v1.0.0 (from beta 8)
---------------------
* switched FTDI as default SPI phy layer in library.cfg
* fixed a bug in TX power control; still only two TW power available, 14 and 24 dBm
* changed library directory name from loragw_hal to libloragw to follow usual conventions
Beta 8 (from beta 7)
---------------------
* API: lgw_receive now return info on RX frequency and RF path for each packet (no need to keep track of RF/IF settings)
* Unified some portion of the code with the 470 MHz variant of the HAL (use SX1255 radios instead of SX1257)
* Improved AGC and ARB firmwares
* Adding -Wall -Wextra for compilation, fixing all the new warnings for cleaner code
* Fixed bugs in handling of FSK datarate
* test_loragw_hal now dumps the content of all Lora registers after configuration in reg_dump.log
Beta 7 (from beta 5)
---------------------
* Reduced number of SPI transactions to fetch a packet (improved number a packets par second that can be downloaded from gateway)
* Streamlined build process, main target is now a static library: libloragw.a
* Change memory allocation for payload: they are now part of the struct for TX/RX, no need to malloc/free
* All RX chains can use any of the two radios now
* FSK is available and working in TX and RX (variable length mode)
* Calibrated RSSI for FSK
* lgw_connect now check the CHIP_ID
* Added a license file and a changelog
* Added a function returning a version string to allow identification of the version/options once compiled
Beta 6
-------
Not a mainline release, not taken into account in that changelog.
Beta 5 (from beta 4)
---------------------
* Updated registers, firmware and configuration to align with r986 bitstream revision
* Calibrated RSSI for Lora "multi" and Lora "stand alone" modems
* Renamed some confusing TX status code
* Preliminary FSK support
Beta 4 (from beta 3)
---------------------
* Unified build environment with selectable SPI layer (Linux native or FTDI SPI-over-USB bridge)
* Remove the 500 kHz limit on radio bandwith, back to the nominal 800 kHz
* Renamed debug flags
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