kopia lustrzana https://github.com/meshtastic/firmware
Add support for SX1281 on 2.4 GHz
Thomas Göttgens
rodzic
fc57a9daa4
commit
f6119639bb
14
src/main.cpp
14
src/main.cpp
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@ -45,6 +45,7 @@
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#include "RF95Interface.h"
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#include "SX1262Interface.h"
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#include "SX1268Interface.h"
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#include "SX1281Interface.h"
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#if !HAS_RADIO && defined(ARCH_PORTDUINO)
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#include "platform/portduino/SimRadio.h"
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#endif
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@ -364,6 +365,19 @@ void setup()
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}
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#endif
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#if defined(USE_SX1281)
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if (!rIf) {
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rIf = new SX1281Interface(SX126X_CS, SX126X_DIO1, SX126X_RESET, SX126X_BUSY, SPI);
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if (!rIf->init()) {
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DEBUG_MSG("Warning: Failed to find SX1281 radio\n");
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delete rIf;
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rIf = NULL;
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} else {
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DEBUG_MSG("SX1281 Radio init succeeded, using SX1281 radio\n");
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}
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}
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#endif
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#if defined(USE_SX1262)
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if (!rIf) {
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rIf = new SX1262Interface(SX126X_CS, SX126X_DIO1, SX126X_RESET, SX126X_BUSY, SPI);
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@ -1,7 +1,10 @@
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#include "SX126xInterface.h"
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#include "SX126xInterface.cpp"
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#include "SX128xInterface.h"
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#include "SX128xInterface.cpp"
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// We need this declaration for proper linking in derived classes
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template class SX126xInterface<SX1262>;
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template class SX126xInterface<SX1268>;
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template class SX126xInterface<LLCC68>;
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template class SX126xInterface<LLCC68>;
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template class SX128xInterface<SX1281>;
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@ -15,6 +15,7 @@ struct RegionInfo {
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uint8_t powerLimit; // Or zero for not set
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bool audioPermitted;
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bool freqSwitching;
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bool wideLora;
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const char *name; // EU433 etc
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};
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@ -11,10 +11,10 @@
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#include <pb_decode.h>
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#include <pb_encode.h>
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#define RDEF(name, freq_start, freq_end, duty_cycle, spacing, power_limit, audio_permitted, frequency_switching) \
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#define RDEF(name, freq_start, freq_end, duty_cycle, spacing, power_limit, audio_permitted, frequency_switching, wide_lora) \
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{ \
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Config_LoRaConfig_RegionCode_##name, freq_start, freq_end, duty_cycle, spacing, power_limit, audio_permitted, \
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frequency_switching, #name \
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frequency_switching, wide_lora, #name \
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}
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const RegionInfo regions[] = {
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@ -22,12 +22,12 @@ const RegionInfo regions[] = {
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https://link.springer.com/content/pdf/bbm%3A978-1-4842-4357-2%2F1.pdf
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https://www.thethingsnetwork.org/docs/lorawan/regional-parameters/
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*/
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RDEF(US, 902.0f, 928.0f, 100, 0, 30, true, false),
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RDEF(US, 902.0f, 928.0f, 100, 0, 30, true, false, false),
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/*
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https://lora-alliance.org/wp-content/uploads/2020/11/lorawan_regional_parameters_v1.0.3reva_0.pdf
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*/
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RDEF(EU_433, 433.0f, 434.0f, 10, 0, 12, true, false),
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RDEF(EU_433, 433.0f, 434.0f, 10, 0, 12, true, false, false),
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/*
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https://www.thethingsnetwork.org/docs/lorawan/duty-cycle/
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@ -43,23 +43,23 @@ const RegionInfo regions[] = {
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(Please refer to section 4.21 in the following document)
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https://ec.europa.eu/growth/tools-databases/tris/index.cfm/ro/search/?trisaction=search.detail&year=2021&num=528&dLang=EN
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*/
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RDEF(EU_868, 869.4f, 869.65f, 10, 0, 27, false, false),
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RDEF(EU_868, 869.4f, 869.65f, 10, 0, 27, false, false, false),
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/*
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https://lora-alliance.org/wp-content/uploads/2020/11/lorawan_regional_parameters_v1.0.3reva_0.pdf
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*/
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RDEF(CN, 470.0f, 510.0f, 100, 0, 19, true, false),
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RDEF(CN, 470.0f, 510.0f, 100, 0, 19, true, false, false),
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/*
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https://lora-alliance.org/wp-content/uploads/2020/11/lorawan_regional_parameters_v1.0.3reva_0.pdf
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*/
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RDEF(JP, 920.8f, 927.8f, 100, 0, 16, true, false),
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RDEF(JP, 920.8f, 927.8f, 100, 0, 16, true, false, false),
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/*
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https://www.iot.org.au/wp/wp-content/uploads/2016/12/IoTSpectrumFactSheet.pdf
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https://iotalliance.org.nz/wp-content/uploads/sites/4/2019/05/IoT-Spectrum-in-NZ-Briefing-Paper.pdf
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*/
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RDEF(ANZ, 915.0f, 928.0f, 100, 0, 30, true, false),
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RDEF(ANZ, 915.0f, 928.0f, 100, 0, 30, true, false, false),
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/*
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https://digital.gov.ru/uploaded/files/prilozhenie-12-k-reshenyu-gkrch-18-46-03-1.pdf
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@ -67,38 +67,44 @@ const RegionInfo regions[] = {
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Note:
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- We do LBT, so 100% is allowed.
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*/
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RDEF(RU, 868.7f, 869.2f, 100, 0, 20, true, false),
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RDEF(RU, 868.7f, 869.2f, 100, 0, 20, true, false, false),
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/*
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???
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*/
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RDEF(KR, 920.0f, 923.0f, 100, 0, 0, true, false),
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RDEF(KR, 920.0f, 923.0f, 100, 0, 0, true, false, false),
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/*
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???
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*/
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RDEF(TW, 920.0f, 925.0f, 100, 0, 0, true, false),
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RDEF(TW, 920.0f, 925.0f, 100, 0, 0, true, false, false),
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/*
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https://lora-alliance.org/wp-content/uploads/2020/11/lorawan_regional_parameters_v1.0.3reva_0.pdf
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*/
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RDEF(IN, 865.0f, 867.0f, 100, 0, 30, true, false),
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RDEF(IN, 865.0f, 867.0f, 100, 0, 30, true, false, false),
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/*
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https://rrf.rsm.govt.nz/smart-web/smart/page/-smart/domain/licence/LicenceSummary.wdk?id=219752
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https://iotalliance.org.nz/wp-content/uploads/sites/4/2019/05/IoT-Spectrum-in-NZ-Briefing-Paper.pdf
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*/
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RDEF(NZ_865, 864.0f, 868.0f, 100, 0, 0, true, false),
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RDEF(NZ_865, 864.0f, 868.0f, 100, 0, 0, true, false, false),
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/*
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https://lora-alliance.org/wp-content/uploads/2020/11/lorawan_regional_parameters_v1.0.3reva_0.pdf
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*/
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RDEF(TH, 920.0f, 925.0f, 100, 0, 16, true, false),
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RDEF(TH, 920.0f, 925.0f, 100, 0, 16, true, false, false),
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/*
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2.4 GHZ WLAN Band equivalent. Only for SX128x chips.
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*/
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RDEF(LORA_24, 2400.0f, 2483.5f, 100, 0, 10, true, false, true),
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/*
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This needs to be last. Same as US.
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*/
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RDEF(UNSET, 902.0f, 928.0f, 100, 0, 30, true, false)
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RDEF(UNSET, 902.0f, 928.0f, 100, 0, 30, true, false, false)
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};
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@ -355,39 +361,40 @@ void RadioInterface::applyModemConfig()
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// No Sync Words in LORA mode
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Config_LoRaConfig &loraConfig = config.lora;
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if (loraConfig.spread_factor == 0) {
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switch (loraConfig.modem_preset) {
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case Config_LoRaConfig_ModemPreset_SHORT_FAST:
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bw = 250;
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bw = myRegion->wideLora ? 800 : 250;
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cr = 8;
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sf = 7;
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break;
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case Config_LoRaConfig_ModemPreset_SHORT_SLOW:
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bw = 250;
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bw = myRegion->wideLora ? 800 : 250;
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cr = 8;
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sf = 8;
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break;
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case Config_LoRaConfig_ModemPreset_MEDIUM_FAST:
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bw = 250;
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bw = myRegion->wideLora ? 800 : 250;
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cr = 8;
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sf = 9;
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break;
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case Config_LoRaConfig_ModemPreset_MEDIUM_SLOW:
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bw = 250;
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bw = myRegion->wideLora ? 800 : 250;
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cr = 8;
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sf = 10;
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break;
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case Config_LoRaConfig_ModemPreset_LONG_FAST:
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bw = 250;
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bw = myRegion->wideLora ? 800 : 250;
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cr = 8;
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sf = 11;
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break;
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case Config_LoRaConfig_ModemPreset_LONG_SLOW:
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bw = 125;
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bw = myRegion->wideLora ? 400 : 125;
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cr = 8;
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sf = 12;
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break;
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case Config_LoRaConfig_ModemPreset_VERY_LONG_SLOW:
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bw = 31.25;
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bw = myRegion->wideLora ? 200 : 31.25;
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cr = 8;
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sf = 12;
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break;
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@ -0,0 +1,9 @@
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#include "configuration.h"
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#include "SX1281Interface.h"
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#include "error.h"
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SX1281Interface::SX1281Interface(RADIOLIB_PIN_TYPE cs, RADIOLIB_PIN_TYPE irq, RADIOLIB_PIN_TYPE rst, RADIOLIB_PIN_TYPE busy,
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SPIClass &spi)
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: SX128xInterface(cs, irq, rst, busy, spi)
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{
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}
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@ -0,0 +1,12 @@
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#pragma once
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#include "SX128xInterface.h"
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/**
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* Our adapter for SX1281 radios
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*/
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class SX1281Interface : public SX128xInterface<SX1281>
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{
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public:
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SX1281Interface(RADIOLIB_PIN_TYPE cs, RADIOLIB_PIN_TYPE irq, RADIOLIB_PIN_TYPE rst, RADIOLIB_PIN_TYPE busy, SPIClass &spi);
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};
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@ -0,0 +1,243 @@
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#include "configuration.h"
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#include "SX128xInterface.h"
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#include "error.h"
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// Particular boards might define a different max power based on what their hardware can do
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#ifndef SX128X_MAX_POWER
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#define SX128X_MAX_POWER 22
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#endif
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template<typename T>
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SX128xInterface<T>::SX128xInterface(RADIOLIB_PIN_TYPE cs, RADIOLIB_PIN_TYPE irq, RADIOLIB_PIN_TYPE rst, RADIOLIB_PIN_TYPE busy,
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SPIClass &spi)
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: RadioLibInterface(cs, irq, rst, busy, spi, &lora), lora(&module)
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{
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}
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/// Initialise the Driver transport hardware and software.
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/// Make sure the Driver is properly configured before calling init().
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/// \return true if initialisation succeeded.
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template<typename T>
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bool SX128xInterface<T>::init()
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{
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#ifdef SX128X_POWER_EN
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digitalWrite(SX128X_POWER_EN, HIGH);
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pinMode(SX128X_POWER_EN, OUTPUT);
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#endif
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#ifdef SX128X_RXEN // set not rx or tx mode
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digitalWrite(SX128X_RXEN, LOW); // Set low before becoming an output
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pinMode(SX128X_RXEN, OUTPUT);
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#endif
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#ifdef SX128X_TXEN
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digitalWrite(SX128X_TXEN, LOW);
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pinMode(SX128X_TXEN, OUTPUT);
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#endif
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RadioLibInterface::init();
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if (power == 0)
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power = SX128X_MAX_POWER;
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if (power > SX128X_MAX_POWER) // This chip has lower power limits than some
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power = SX128X_MAX_POWER;
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limitPower();
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int res = lora.begin(getFreq(), bw, sf, cr, syncWord, power, preambleLength);
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// \todo Display actual typename of the adapter, not just `SX128x`
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DEBUG_MSG("SX128x init result %d\n", res);
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DEBUG_MSG("Frequency set to %f\n", getFreq());
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DEBUG_MSG("Bandwidth set to %f\n", bw);
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DEBUG_MSG("Power output set to %d\n", power);
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#ifdef SX128X_TXEN
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// lora.begin sets Dio2 as RF switch control, which is not true if we are manually controlling RX and TX
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if (res == RADIOLIB_ERR_NONE)
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res = lora.setDio2AsRfSwitch(true);
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#endif
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if (res == RADIOLIB_ERR_NONE)
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res = lora.setCRC(RADIOLIB_SX128X_LORA_CRC_ON);
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if (res == RADIOLIB_ERR_NONE)
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startReceive(); // start receiving
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return res == RADIOLIB_ERR_NONE;
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}
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template<typename T>
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bool SX128xInterface<T>::reconfigure()
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{
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RadioLibInterface::reconfigure();
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// set mode to standby
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setStandby();
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// configure publicly accessible settings
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int err = lora.setSpreadingFactor(sf);
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if (err != RADIOLIB_ERR_NONE)
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RECORD_CRITICALERROR(CriticalErrorCode_INVALID_RADIO_SETTING);
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err = lora.setBandwidth(bw);
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if (err != RADIOLIB_ERR_NONE)
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RECORD_CRITICALERROR(CriticalErrorCode_INVALID_RADIO_SETTING);
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err = lora.setCodingRate(cr);
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if (err != RADIOLIB_ERR_NONE)
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RECORD_CRITICALERROR(CriticalErrorCode_INVALID_RADIO_SETTING);
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// Hmm - seems to lower SNR when the signal levels are high. Leaving off for now...
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// TODO: Confirm gain registers are okay now
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// err = lora.setRxGain(true);
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// assert(err == RADIOLIB_ERR_NONE);
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err = lora.setSyncWord(syncWord);
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assert(err == RADIOLIB_ERR_NONE);
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err = lora.setPreambleLength(preambleLength);
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assert(err == RADIOLIB_ERR_NONE);
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err = lora.setFrequency(getFreq());
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if (err != RADIOLIB_ERR_NONE)
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RECORD_CRITICALERROR(CriticalErrorCode_INVALID_RADIO_SETTING);
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if (power > 22) // This chip has lower power limits than some
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power = 22;
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err = lora.setOutputPower(power);
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assert(err == RADIOLIB_ERR_NONE);
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startReceive(); // restart receiving
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return RADIOLIB_ERR_NONE;
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}
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template<typename T>
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void INTERRUPT_ATTR SX128xInterface<T>::disableInterrupt()
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{
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lora.clearDio1Action();
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}
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template<typename T>
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void SX128xInterface<T>::setStandby()
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{
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checkNotification(); // handle any pending interrupts before we force standby
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int err = lora.standby();
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assert(err == RADIOLIB_ERR_NONE);
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#ifdef SX128X_RXEN // we have RXEN/TXEN control - turn off RX and TX power
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digitalWrite(SX128X_RXEN, LOW);
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#endif
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#ifdef SX128X_TXEN
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digitalWrite(SX128X_TXEN, LOW);
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#endif
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isReceiving = false; // If we were receiving, not any more
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disableInterrupt();
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completeSending(); // If we were sending, not anymore
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}
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/**
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* Add SNR data to received messages
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*/
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template<typename T>
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void SX128xInterface<T>::addReceiveMetadata(MeshPacket *mp)
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{
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// DEBUG_MSG("PacketStatus %x\n", lora.getPacketStatus());
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mp->rx_snr = lora.getSNR();
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mp->rx_rssi = lround(lora.getRSSI());
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}
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/** We override to turn on transmitter power as needed.
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*/
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template<typename T>
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void SX128xInterface<T>::configHardwareForSend()
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{
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#ifdef SX128X_TXEN // we have RXEN/TXEN control - turn on TX power / off RX power
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digitalWrite(SX128X_TXEN, HIGH);
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#endif
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#ifdef SX128X_RXEN
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digitalWrite(SX128X_RXEN, LOW);
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#endif
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RadioLibInterface::configHardwareForSend();
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}
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// For power draw measurements, helpful to force radio to stay sleeping
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// #define SLEEP_ONLY
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template<typename T>
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void SX128xInterface<T>::startReceive()
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{
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#ifdef SLEEP_ONLY
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sleep();
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#else
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setStandby();
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#ifdef SX128X_RXEN // we have RXEN/TXEN control - turn on RX power / off TX power
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digitalWrite(SX128X_RXEN, HIGH);
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#endif
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#ifdef SX128X_TXEN
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digitalWrite(SX128X_TXEN, LOW);
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#endif
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int err = lora.startReceive();
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assert(err == RADIOLIB_ERR_NONE);
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isReceiving = true;
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// Must be done AFTER, starting transmit, because startTransmit clears (possibly stale) interrupt pending register bits
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enableInterrupt(isrRxLevel0);
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#endif
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}
|
||||
|
||||
/** Could we send right now (i.e. either not actively receving or transmitting)? */
|
||||
template<typename T>
|
||||
bool SX128xInterface<T>::isChannelActive()
|
||||
{
|
||||
// check if we can detect a LoRa preamble on the current channel
|
||||
int16_t result;
|
||||
|
||||
setStandby();
|
||||
result = lora.scanChannel();
|
||||
if (result == RADIOLIB_PREAMBLE_DETECTED)
|
||||
return true;
|
||||
|
||||
assert(result != RADIOLIB_ERR_WRONG_MODEM);
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
/** Could we send right now (i.e. either not actively receving or transmitting)? */
|
||||
template<typename T>
|
||||
bool SX128xInterface<T>::isActivelyReceiving()
|
||||
{
|
||||
return isChannelActive();
|
||||
}
|
||||
|
||||
template<typename T>
|
||||
bool SX128xInterface<T>::sleep()
|
||||
{
|
||||
// Not keeping config is busted - next time nrf52 board boots lora sending fails tcxo related? - see datasheet
|
||||
// \todo Display actual typename of the adapter, not just `SX128x`
|
||||
DEBUG_MSG("SX128x entering sleep mode (FIXME, don't keep config)\n");
|
||||
setStandby(); // Stop any pending operations
|
||||
|
||||
// turn off TCXO if it was powered
|
||||
// FIXME - this isn't correct
|
||||
// lora.setTCXO(0);
|
||||
|
||||
// put chipset into sleep mode (we've already disabled interrupts by now)
|
||||
bool keepConfig = true;
|
||||
lora.sleep(keepConfig); // Note: we do not keep the config, full reinit will be needed
|
||||
|
||||
#ifdef SX128X_POWER_EN
|
||||
digitalWrite(SX128X_POWER_EN, LOW);
|
||||
#endif
|
||||
|
||||
return true;
|
||||
}
|
||||
|
|
@ -0,0 +1,71 @@
|
|||
#pragma once
|
||||
|
||||
#include "RadioLibInterface.h"
|
||||
|
||||
/**
|
||||
* \brief Adapter for SX128x radio family. Implements common logic for child classes.
|
||||
* \tparam T RadioLib module type for SX128x: SX1281.
|
||||
*/
|
||||
template<class T>
|
||||
class SX128xInterface : public RadioLibInterface
|
||||
{
|
||||
public:
|
||||
SX128xInterface(RADIOLIB_PIN_TYPE cs, RADIOLIB_PIN_TYPE irq, RADIOLIB_PIN_TYPE rst, RADIOLIB_PIN_TYPE busy, SPIClass &spi);
|
||||
|
||||
/// Initialise the Driver transport hardware and software.
|
||||
/// Make sure the Driver is properly configured before calling init().
|
||||
/// \return true if initialisation succeeded.
|
||||
virtual bool init() override;
|
||||
|
||||
/// Apply any radio provisioning changes
|
||||
/// Make sure the Driver is properly configured before calling init().
|
||||
/// \return true if initialisation succeeded.
|
||||
virtual bool reconfigure() override;
|
||||
|
||||
/// Prepare hardware for sleep. Call this _only_ for deep sleep, not needed for light sleep.
|
||||
virtual bool sleep() override;
|
||||
|
||||
protected:
|
||||
|
||||
float currentLimit = 140; // Higher OCP limit for SX128x PA
|
||||
|
||||
/**
|
||||
* Specific module instance
|
||||
*/
|
||||
T lora;
|
||||
|
||||
/**
|
||||
* Glue functions called from ISR land
|
||||
*/
|
||||
virtual void disableInterrupt() override;
|
||||
|
||||
/**
|
||||
* Enable a particular ISR callback glue function
|
||||
*/
|
||||
virtual void enableInterrupt(void (*callback)()) { lora.setDio1Action(callback); }
|
||||
|
||||
/** can we detect a LoRa preamble on the current channel? */
|
||||
virtual bool isChannelActive() override;
|
||||
|
||||
/** are we actively receiving a packet (only called during receiving state) */
|
||||
virtual bool isActivelyReceiving() override;
|
||||
|
||||
/**
|
||||
* Start waiting to receive a message
|
||||
*/
|
||||
virtual void startReceive() override;
|
||||
|
||||
/**
|
||||
* We override to turn on transmitter power as needed.
|
||||
*/
|
||||
virtual void configHardwareForSend() override;
|
||||
|
||||
/**
|
||||
* Add SNR data to received messages
|
||||
*/
|
||||
virtual void addReceiveMetadata(MeshPacket *mp) override;
|
||||
|
||||
virtual void setStandby() override;
|
||||
|
||||
private:
|
||||
};
|
||||
Ładowanie…
Reference in New Issue