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https://github.com/cnlohr/lolra.git
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cnlohr
92 lines
2.4 KiB
C
92 lines
2.4 KiB
C
/*
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MIT License
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Copyright (c) 2024 Charles Lohr "CNLohr"
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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*/
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// TEST 1: 125kHz with -.028 675
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// TEST 2: 500kHz with 138 kHz correction. 534??
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// TEST 3: 500kHz with 0 kHz correction. FAIL
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// TEST 4: 125kHz with -.028 5V 1210
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//END OF RED ANTENNA
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// TEST 5: 125kHz with -.027 3.3V, shorter antenna? 829
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// TEST 6: 125k ESP 80 GREY antenna ???/??? 850 /
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#include <stdint.h>
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// Transmit a 500kHz width LoRa
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//#define KHZ500
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// Expects a 24MHz external clock.
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//#define USE_EXTERNAL_CLOCK
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#ifdef KHZ500
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const double tune_mhz = -0.000;
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const double center_frequency = 904.6 + tune_mhz;
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const double bw = .5;
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#ifdef USE_EXTERNAL_CLOCK
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#define SF_NUMBER 9
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#else
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#define SF_NUMBER 10
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#endif
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#define SF_SYMBOL_TIME 0.00000025
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#else // 125kHz channel
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const double bw = 0.125;
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#ifdef USE_EXTERNAL_CLOCK
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const double tune_mhz = 0.00;
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#define SF_NUMBER 7
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#else
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const double tune_mhz = -0.028; //XXX ??? Per device tuning? Or area the load caps just wrong?
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#define SF_NUMBER 8
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#endif
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const double center_frequency = 904.5 + tune_mhz;
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#endif
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#define SPI_DIV 1
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#ifdef USE_EXTERNAL_CLOCK
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const double sample_rate = (24*9/2)/SPI_DIV; //216MHz PLL
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#else
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const double sample_rate = (72)/SPI_DIV;
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#endif
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#define ATTRIBUTE_FOR_DATA "__attribute__((section(\".text\")))"
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#define USE_16_BITS
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const uint32_t memory_offset = 0x00000;
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#include "../../lib/rf_data_gen.h"
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int main()
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{
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return gen_buffer_files();
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}
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