文件列表:

.travis.yml (1553, 2021-08-04)
CMakeLists.txt (1039, 2021-08-04)
dist.py (452, 2021-08-04)
dist/ (0, 2021-08-04)
dist/firmware.elf (56024, 2021-08-04)
dist/firmware.hex (78064, 2021-08-04)
p.sh (152, 2021-08-04)
platformio.ini (1907, 2021-08-04)
src/ (0, 2021-08-04)
src/AppSettings.cpp (533, 2021-08-04)
src/AppSettings.h (1353, 2021-08-04)
src/FreeSansBold15pt7b.h (3871, 2021-08-04)
src/Mode.h (1680, 2021-08-04)
src/State.cpp (1011, 2021-08-04)
src/State.h (1519, 2021-08-04)
src/Storage.cpp (1322, 2021-08-04)
src/Storage.h (716, 2021-08-04)
src/Task.h (184, 2021-08-04)
src/button.cpp (72, 2021-08-04)
src/button.h (3430, 2021-08-04)
src/callback.h (185, 2021-08-04)
src/colors.h (598, 2021-08-04)
src/common.h (450, 2021-08-04)
src/config.h (2255, 2021-08-04)
src/main.cpp (25508, 2021-08-04)
src/menu/ (0, 2021-08-04)
src/menu/Action.h (417, 2021-08-04)
src/menu/Menu.cpp (2093, 2021-08-04)
src/menu/Menu.h (1599, 2021-08-04)
src/menu/MenuBuilder.cpp (77, 2021-08-04)
src/menu/MenuBuilder.h (171, 2021-08-04)
src/screen.h (2934, 2021-08-04)
src/swr.h (4085, 2021-08-04)
src/ui/ (0, 2021-08-04)
src/ui/Band.cpp (5253, 2021-08-04)
src/ui/Band.h (1062, 2021-08-04)
src/ui/Display.cpp (3021, 2021-08-04)
src/ui/Display.h (1194, 2021-08-04)
... ...

# nanodds DDS for SSB 6.1 transceiver based on Si5351A, ST7735 and ATMega1284p ## Current WIP Memory - Save state - List cells - Load ## Planned function Buttons - Encoder * Short press - enable/disable RIT (transmits on the main frequency). * Long press * If encoder is rotated - change step of frequency - TX - Mode * Single press - switches type of modulation * Press & hold when is booting - opens Settings mainMenu (use Encoder to navigate and change the values, use Encoder button to activate the mainMenu item and rotate to change, second click will return focus) - VFO * Short press - switches between A/B VFO * Long press - enables SPLIT. Allows to transmit on alternative frequency. For example if you are receiving at VFO A, you will be transmitting at VFO B frequency. - BAND * Short press - cycles through list of bands * - STEP * Changes step from 1 Hz to 1 MHz in power of 10th. - MEM (MENU) ``` Use MEM to exit w/o Save *1s -- [Memory] Save selectedActionIndex as new cell [3.760300, LSB] Load Overwrite with Current Y/N Erase Y/N Erase All N/Y << [CW] Words Per Minute <50> Iambic Keyer [x] Mode Reverse Pads < *- | -* > CW Tone <800> << [SWR] Analyze Band << [Settings] Intermediate Frequency <8000000> MHz SSB Offset <1400> Hz DDS Calibration <-0> Hz [SWR Calibration] Set 50 Ohm point Set 100 Ohm point << [Language] English Русский (Russian) Espaniol (Spanish) << [Pano] Swipe size +/- <10> kHz << Allow TX after startup [] << About << ``` ### Ideas SWR Analyse should scan the band with minimal output power and plot the SWR graph. Display Max, Min SWR & Frequencies. Support of multiple languages. Watch demo on Youtube [](https://www.youtube.com/playlist?list=PLTqbxXPJuZrR78shjXX4a-I0lrquxQZ_2) ## Dependencies * PlatformIO.org * https://github.com/PaulStoffregen/Encoder * https://github.com/adafruit/Adafruit-ST7735-Library * https://github.com/etherkit/Si5351Arduino ### Programming 0. Build ``` pio run --target=upload -e Debug ``` 1. Fuses ```bash avrdude -v -pm1284p -c avrispmkII -P usb:16:79 -B 10 -U lfuse:w:0xee:m -U hfuse:w:0xd6:m -U efuse:w:0xfd:m ``` 2. Actual software ```bash avrdude -p m1284p -c avrispmkII -P usb:16:79 -e -U flash:w:.pio/build/Debug/firmware.elf:e -v -B 10 ``` Logic State - active state AppSettings - global rarely updated changes Per http://www.rfcafe.com/references/electrical/spectral-inv.htm we have DDS always running above receiving RF signal therefore `LO1 frequency = RF + IF` which results in spectral inversion. To make sound undistorted we must perform second spectral inversion by setting LO2 at the upper edge of the filter.

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