如何提升Ebyte收发器每秒传输速率至8次？

我购置了一款Ebyte收发器，使用对应的C语言/Arduino库开发，希望将传输速率提升至每秒8次。目前已通过调整库中的超时变量将速率提升至每秒4次，但修改库头文件中的波特率、空中数据速率等参数后，传输速率仍无法突破4次/秒。操作参考了库作者的相关Issue建议。

现有测试代码 #

/*
  This example shows how to connect to an EBYTE transceiver
  using an ESP32

  This code for the sender

  ESP32 won't allow SoftwareSerial (at least I can't get that lib to work
  so you will just hardwire your EBYTE directly to the Serial2 port
*/

#include "EBYTE.h"

/*
WARNING: IF USING AN ESP32
DO NOT USE THE PIN NUMBERS PRINTED ON THE BOARD
YOU MUST USE THE ACTUAL GPIO NUMBER
*/
#define PIN_RX 16   // Serial2 RX (connect this to the EBYTE Tx pin)
#define PIN_TX 17   // Serial2 TX pin (connect this to the EBYTE Rx pin)

#define PIN_M0 4    // D4 on the board (possibly pin 24)
#define PIN_M1 22   // D2 on the board (possibly called pin 22)
#define PIN_AX 21   // D15 on the board (possibly called pin 21)

// i recommend putting this code in a .h file and including it
// from both the receiver and sender modules
struct DATA {
  unsigned long Count;
  int Bits;
  float Volts;
  float Amps;
};

// these are just dummy variables, replace with your own
int Chan;
DATA MyData;
unsigned long Last;

// create the transceiver object, passing in the serial and pins
EBYTE Transceiver(&Serial2, PIN_M0, PIN_M1, PIN_AX);

void setup() {
  Serial.begin(19200);
  Serial.println("Starting Reader");
  
  Serial2.begin(19200);

  Transceiver.init();
  Transceiver.SetMode(MODE_PROGRAM);
  Transceiver.SetSpeed(19200);
  Transceiver.SetTransmitPower(OPT_TP20);
  Transceiver.SetUARTBaudRate(UDR_19200);
  Transceiver.SetAirDataRate(ADR_19200);
  Transceiver.SetAddressH(0);
  Transceiver.SetAddressL(0);
  Transceiver.SetChannel(13);

  Transceiver.SaveParameters(PERMANENT);
  Transceiver.Reset();

  Transceiver.PrintParameters();
  Transceiver.SetMode(MODE_NORMAL);
  Transceiver.Reset();
  
  Serial2.flush();
}

void loop() {
  // measure some data and save to the structure
  MyData.Count++;
  MyData.Bits = analogRead(A0);
  MyData.Volts = MyData.Bits * ( 5.0 / 1024.0 );

  // i highly suggest you send data using structures and not
  // a parsed data--i've always had a hard time getting reliable data using
  // a parsing method
  Transceiver.SendStruct(&MyData, sizeof(MyData));

  // note, you only really need this library to program these EBYTE units
  // you can call write directly on the EBYTE Serial object
  // Serial2.write((uint8_t*) &Data, PacketSize );

  // let the user know something was sent
  Serial.print("Sending: "); Serial.println(MyData.Count);
  delay(8);
}

宏定义参数疑问 #

尝试使用库头文件规定外的参数时，发现宏定义的二进制值与标注的波特率不匹配，例如：

// air data rates (certain types of modules)
// (must be the same for transmitter and receiver)
#define ADR_300 0b000       // 300 baud
#define ADR_1200 0b001      // 1200 baud
#define ADR_2400 0b010      // 2400 baud
#define ADR_4800 0b011      // 4800 baud
#define ADR_9600 0b100      // 9600 baud
#define ADR_19200 0b101     // 19200 baud

0b101转换为十进制后与19200完全不相等。

内容的提问来源于stack exchange，提问作者Peace David