Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

Unreleased

Removed

compatibility with python3.7 & python3.8

3.0.0 - 2023-05-04

Added

declare compatibility with python3.11
allow parametrization of spi_max_speed_hz during C1101 class instantiation to solve issue-128

Changed

CC1101.transmit: raise RuntimeError instead of Exception when attempting to transmit in non-idle state

Removed

compatibility with python3.5 & python3.6

2.7.3 - 2021-04-20

Fixed

change IOCFG0.GDO0_CFG as recommended in docs to "optimize RF performance"

2.7.2 - 2021-03-12

Fixed

recommend to check wiring & bus selection when receiving chip version 0

2.7.1 - 2021-02-08

Fixed

close & unlock SPI device file when error occurs while entering context

2.7.0 - 2021-01-24

Added

method set/get_output_power to configure/retrieve output power settings (PATABLE and FREND0.PA_POWER)
all commands: added parameter -p/--output-power
command cc1101-export-config: append values of PATABLE register as comment

Fixed

default config via private/unstable method _set_power_amplifier_setting_index: no longer set FREND0.LODIV_BUF_CURRENT_TX to 0 (default: 1)

2.6.1 - 2021-01-16

Fixed

private/unstable method _set_modulation_format: fixed incorrect configuration of MDMCFG2 register

2.6.0 - 2021-01-04

Added

command cc1101-export-config to export / inspect config register values after configuration via command-line arguments & options matching cc1101-transmit

Fixed

cc1101-transmit command:
- set flock on SPI device file to avoid race conditions, if other processes attempt to use the same transceiver
- configure transceiver after reading from stdin to avoid delay between configuration and transmission, if pipe is slow

2.5.0 - 2020-12-30

Added

added command cc1101-transmit to transmit via command-line interface
warn when selecting frequency below supported range

2.4.0 - 2020-12-13

Added

support chip version 0x04

2.3.0 - 2020-12-11

Added

option CC1101(lock_spi_device=True) sets an advisory, exclusive, non-blocking flock on the SPI device file /dev/spidev?.?
method .unlock_spi_device() to release flock manually

2.2.0 - 2020-12-08

Added

select arbitrary device via CC1101(spi_bus=?, spi_chip_select=?)
added explanation to PermissionError on SpiDev.open()

2.1.0 - 2020-12-04

Added

method .get_sync_word()
method .set_sync_word()
method .get_preamble_length_bytes()
method .set_preamble_length_bytes()
preamble length & sync word in string representation

2.0.0 - 2020-12-03

Changed

transmit(): prepend length byte in variable packet length mode internally to avoid accidental incomplete transmissions and TX FIFO underflows

1.2.0 - 2020-12-02

Added

support for fixed packet length mode via new method set_packet_length_mode(PacketLengthMode.FIXED)
new enum options.PacketLengthMode
new method get_packet_length_mode()
method get_packet_length_bytes() is now public
new method set_packet_length_bytes()
added configured packet length to CC1101's string representation (≤n indicates variable length mode, =n fixed length mode)

1.1.0 - 2020-12-01

Added

method disable_checksum() to disable automatic CRC sum appending in TX mode and checking in RX mode

1.0.0 - 2020-09-02

Added

CC1101 class providing
- context manager to open SPI port
- transmit() for buffered transmission
- context manager asynchronous_transmission() for manual signal generation
- get_configuration_register_values() to read all configuration registers
OOK modulation
configurable symbol rate & sync mode
optional manchester encoding
disabled data whitening
automatic calibration