LLCC68 wouldn't work on ESP32 HSPI

[m4mans]

Hi, I'm trying to use LLCC68 on my esp32 based device, it works perfectly fine on VSPI bus, but when I try to shift it to HSPI, it would throw -2 error.
I checked the troubleshooting guide and everything else in the discussion, nothing seems to work.

I'm using Arduino IDE, esp32-core version 3.0.4 with esp3 dev module.

Code:

#include <RadioLib.h>
#include <SPI.h>

#define RF_DIO1 33
#define RF_DIO2 32
#define RF_DIO3 15
#define RF_RESET 16
#define RF_BUSY 4
//SPI
#define RF_NSS 5
#define RF_MISO 12
#define RF_MOSI 13
#define RF_CLK 14

// include the library
#include <RadioLib.h>

SPIClass *hspi = NULL;

Module* mod;
LLCC68* radio;

void setup() {
  Serial.begin(115200);

  hspi = new SPIClass(HSPI);

  hspi->begin();
  mod = new Module(5, 33, 16, 4, *hspi);
  radio = new LLCC68(mod);

  // initialize LLCC68 with default settings
  Serial.print(F("[LLCC68] Initializing ... "));
  int state = radio->begin();
  if (state == RADIOLIB_ERR_NONE) {
    Serial.println(F("success!"));
  } else {
    Serial.print(F("failed, code "));
    Serial.println(state);
    while (true) { delay(10); }
  }
}

// counter to keep track of transmitted packets
int count = 0;

void loop() {
  Serial.print(F("[LLCC68] Transmitting packet ... "));

  // you can transmit C-string or Arduino string up to
  // 256 characters long
  String str = "Hello World! #" + String(count++);
  int state = radio->transmit(str);


  if (state == RADIOLIB_ERR_NONE) {
    // the packet was successfully transmitted
    Serial.println(F("success!"));

  } else if (state == RADIOLIB_ERR_PACKET_TOO_LONG) {
    // the supplied packet was longer than 256 bytes
    Serial.println(F("too long!"));

  } else {
    // some other error occurred
    Serial.print(F("failed, code "));
    Serial.println(state);

  }

  // wait for a second before transmitting again
  delay(1000);
}

Logs:

18:00:01.927 -> RLB_SPI: SO	A2	A2	A2	A2	53	58	31	32	36	31	20	56	32	44	20	32	44	30	32	0	
18:00:01.927 -> RLB_DBG: SX126x not found! (7 of 10 tries) RADIOLIB_SX126X_REG_VERSION_STRING:
18:00:01.956 -> RLB_DBG: 00000320: 53 58 31 32 36 31 20 56 32 44 20 32 44 30 32 00  SX1261 V2D 2D02.
18:00:01.956 -> RLB_DBG: Expected string: LLCC68
18:00:01.956 -> RLB_SPI: CMDW	80	
18:00:01.956 -> RLB_SPI: SI		0	
18:00:01.956 -> RLB_SPI: SO	A2	A2	
18:00:01.956 -> RLB_SPI: CMDR	1D	3	20	
18:00:01.956 -> RLB_SPI: SI				0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	
18:00:01.987 -> RLB_SPI: SO	A2	A2	A2	A2	53	58	31	32	36	31	20	56	32	44	20	32	44	30	32	0	
18:00:01.987 -> RLB_DBG: SX126x not found! (8 of 10 tries) RADIOLIB_SX126X_REG_VERSION_STRING:
18:00:01.987 -> RLB_DBG: 00000320: 53 58 31 32 36 31 20 56 32 44 20 32 44 30 32 00  SX1261 V2D 2D02.
18:00:01.987 -> RLB_DBG: Expected string: LLCC68
18:00:02.020 -> RLB_SPI: CMDW	80	
18:00:02.020 -> RLB_SPI: SI		0	
18:00:02.020 -> RLB_SPI: SO	A2	A2	
18:00:02.020 -> RLB_SPI: CMDR	1D	3	20	
18:00:02.020 -> RLB_SPI: SI				0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	
18:00:02.020 -> RLB_SPI: SO	A2	A2	A2	A2	53	58	31	32	36	31	20	56	32	44	20	32	44	30	32	0	
18:00:02.020 -> RLB_DBG: SX126x not found! (9 of 10 tries) RADIOLIB_SX126X_REG_VERSION_STRING:
18:00:02.020 -> RLB_DBG: 00000320: 53 58 31 32 36 31 20 56 32 44 20 32 44 30 32 00  SX1261 V2D 2D02.
18:00:02.051 -> RLB_DBG: Expected string: LLCC68
18:00:02.051 -> RLB_SPI: CMDW	80	
18:00:02.051 -> RLB_SPI: SI		0	
18:00:02.051 -> RLB_SPI: SO	A2	A2	
18:00:02.051 -> RLB_SPI: CMDR	1D	3	20	
18:00:02.051 -> RLB_SPI: SI				0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	
18:00:02.051 -> RLB_SPI: SO	A2	A2	A2	A2	53	58	31	32	36	31	20	56	32	44	20	32	44	30	32	0	
18:00:02.083 -> RLB_DBG: SX126x not found! (10 of 10 tries) RADIOLIB_SX126X_REG_VERSION_STRING:
18:00:02.083 -> RLB_DBG: 00000320: 53 58 31 32 36 31 20 56 32 44 20 32 44 30 32 00  SX1261 V2D 2D02.
18:00:02.083 -> RLB_DBG: Expected string: LLCC68
18:00:02.083 -> RLB_DBG: No SX126x found!
18:00:02.115 -> RLB_DBG: -2 at \RadioLib\src\modules\SX126x\SX126x.cpp:40
18:00:02.115 -> RLB_DBG: -2 at \RadioLib\src\modules\LLCC68\LLCC68.cpp:12
18:00:02.115 -> failed, code -2

[jgromes]

The debug log says it all:

18:00:01.927 -> RLB_DBG: SX126x not found! (7 of 10 tries) RADIOLIB_SX126X_REG_VERSION_STRING:
18:00:01.956 -> RLB_DBG: 00000320: 53 58 31 32 36 31 20 56 32 44 20 32 44 30 32 00  SX1261 V2D 2D02.
18:00:01.956 -> RLB_DBG: Expected string: LLCC68

Upon reading the version register, the library found the string "SX1261 V2D 2D02". So it seems like your device is not actually LLCC68, but rather SX1261.