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added physical addressing

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Timm Bogner 2022-08-22 20:55:20 -05:00
parent 7dc8c64c73
commit 378d50eb87
2 changed files with 32 additions and 32 deletions
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2
README.md
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@ -13,7 +13,7 @@ Install the libraries that you need:
- [ArduinoJson](https://arduinojson.org/) (mandatory)
- [LoRa library](https://github.com/sandeepmistry/arduino-LoRa) by sandeepmistry (required if using LoRa)
- [PubSubClient](https://github.com/knolleary/pubsubclient/) (required for MQTT Gateways)
- [ArduinoUniqueID](https://github.com/ricaun/ArduinoUniqueID) (required for LoRa sensors/controllers)
### [Sensors](/extras/Sensor.md)
Sensors gather data and send it to a gateway via ESP-NOW or LoRa.

62
src/fdrs_node.h
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@ -14,6 +14,7 @@
#include <esp_wifi.h>
#endif
#ifdef USE_LORA
#include <ArduinoUniqueID.h>
#include <LoRa.h>
#endif
@ -82,15 +83,14 @@ typedef struct __attribute__((packed)) SystemPacket {
const uint16_t espnow_size = 250 / sizeof(DataReading);
uint8_t broadcast_mac[] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
uint8_t gatewayAddress[] = {MAC_PREFIX, GTWY_MAC};
uint16_t gtwyAddress = ((gatewayAddress[4] << 8) | GTWY_MAC);
uint16_t LoRaAddress = 0x4200;
#ifdef USE_LORA
uint16_t LoRaAddress = ((UniqueID8[6] << 8) | UniqueID8[7]);
unsigned long transmitLoRaMsg = 0; // Number of total LoRa packets destined for us and of valid size
unsigned long msgOkLoRa = 0; // Number of total LoRa packets with valid CRC
#endif
uint32_t gtwy_timeout = 0;
uint8_t incMAC[6];
uint32_t wait_time = 0;
DataReading fdrsData[espnow_size];
@ -231,6 +231,33 @@ void beginFDRS() {
}
// CRC16 from https://github.com/4-20ma/ModbusMaster/blob/3a05ff87677a9bdd8e027d6906dc05ca15ca8ade/src/util/crc16.h#L71
/** @ingroup util_crc16
Processor-independent CRC-16 calculation.
Polynomial: x^16 + x^15 + x^2 + 1 (0xA001)<br>
Initial value: 0xFFFF
This CRC is normally used in disk-drive controllers.
@param uint16_t crc (0x0000..0xFFFF)
@param uint8_t a (0x00..0xFF)
@return calculated CRC (0x0000..0xFFFF)
*/
static uint16_t crc16_update(uint16_t crc, uint8_t a) {
int i;
crc ^= a;
for (i = 0; i < 8; ++i)
{
if (crc & 1)
crc = (crc >> 1) ^ 0xA001;
else
crc = (crc >> 1);
}
return crc;
}
// USED to get ACKs from LoRa gateway at this point. May be used in the future to get other data
// Return type is crcResult struct - CRC_OK, CRC_BAD, CRC_NULL. CRC_NULL used for non-ack data
crcResult getLoRa() {
@ -481,30 +508,3 @@ uint32_t pingFDRS(int timeout) {
DBG(" LoRa ping not sent because it isn't implemented.");
#endif
}
// CRC16 from https://github.com/4-20ma/ModbusMaster/blob/3a05ff87677a9bdd8e027d6906dc05ca15ca8ade/src/util/crc16.h#L71
/** @ingroup util_crc16
Processor-independent CRC-16 calculation.
Polynomial: x^16 + x^15 + x^2 + 1 (0xA001)<br>
Initial value: 0xFFFF
This CRC is normally used in disk-drive controllers.
@param uint16_t crc (0x0000..0xFFFF)
@param uint8_t a (0x00..0xFF)
@return calculated CRC (0x0000..0xFFFF)
*/
static uint16_t crc16_update(uint16_t crc, uint8_t a) {
int i;
crc ^= a;
for (i = 0; i < 8; ++i)
{
if (crc & 1)
crc = (crc >> 1) ^ 0xA001;
else
crc = (crc >> 1);
}
return crc;
}