[SX128x] Cannot transmit after sleep()

[jacobeva]

Describe the bug
After putting the module into sleep mode, even if the module is woken up after by pulling SS LOW, all attempts to transmit will result in RADIOLIB_ERR_TX_TIMEOUT. In my example sketch below, the "transmitting..." line is never sent over serial if the call to sleep is not commented out.

To Reproduce

#include <Arduino.h>
#include "Adafruit_TinyUSB.h"
#include <SPI.h>
#include <variant.h>
#include <RadioLib.h>

    SX1280 radio = new Module(24, 15, 16, 25);

volatile bool packet_rx = false;
int packets = 0;

void setflag() {
    packet_rx = true;
}

void setup() {
    Serial.begin(115200);
    while(!Serial);
    uint8_t sf = 10;
      int state = radio.begin(2408, 1625, sf, 5);// 0x14 1, 30);
      radio.setRfSwitchPins(19, 20);
      radio.explicitHeader();
radio.setCRC(2);
      //radio.setSyncWord(0x14, 0x24);
  if (state == RADIOLIB_ERR_NONE) {
    Serial.println(F("success!"));
  } else {
    Serial.print(F("failed, code "));
    Serial.println(state);
    while (true) { delay(10); }
  }
  radio.sleep();
}

void loop() {
    digitalWrite(24, LOW);
    delay(1);
    digitalWrite(24, HIGH);
    delay(1);
    radio.standby();
    uint8_t data[255] = {0};
    for (int i = 0; i < 255; i++) {
        data[i] = i;
    }
    int16_t status;
    while (true) {
    status = radio.transmit(data, 255);
    //radio.transmit(data, 7);
    if (status == RADIOLIB_ERR_NONE) Serial.println("transmitting...");
    }
}

Expected behavior
Transmitting after sleep should work as expected.

Additional info (please complete):

• Library version 7.0.0

[jgromes]

Resolved by merging #1250