Software SPI not working on Arduino Nano ESP32

[Philoneous]

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Subject of the issue

Software SPI does not work on Arduino Nano ESP32

Your Environment

Library Version:3.7.1 Arduino IDE version:2.2.1 Host OS and Version:Win 10 CPU Hardware model/type:

Steps to Reproduce

Whenever I use the constructor for software SPI (MD_Parola P = MD_Parola(HARDWARE_TYPE, DATA_PIN, CLK_PIN, CS_PIN, MAX_DEVICES)) the Matrix doesn't work. Using the Hardware constructor and the according pins works, however.

Expected Behaviour

Software SPI should be functional when defining the pins and using the according constructor.

Actual Behaviour

matrix remains blank

Code Demonstrating the Issue

// Program to demonstrate the MD_Parola library
//
// Simplest program that does something useful - Hello!
// Uses the Arduino Print Class extension
//
// MD_MAX72XX library can be found at https://github.com/MajicDesigns/MD_MAX72XX
//

#include <MD_Parola.h>
#include <MD_MAX72xx.h>
#include <SPI.h>

// Define the number of devices we have in the chain and the hardware interface
// NOTE: These pin numbers will probably not work with your hardware and may
// need to be adapted
#define HARDWARE_TYPE MD_MAX72XX::FC16_HW
#define MAX_DEVICES 4

#define CLK_PIN   4
#define DATA_PIN  5
#define CS_PIN    6

// Hardware SPI connection
//MD_Parola P = MD_Parola(HARDWARE_TYPE, CS_PIN, MAX_DEVICES);
// Arbitrary output pins
MD_Parola P = MD_Parola(HARDWARE_TYPE, DATA_PIN, CLK_PIN, CS_PIN, MAX_DEVICES);

void setup(void)
{
  P.begin();
  P.print("Hello!");
}

void loop(void)
{
}

[MajicDesigns]

Following investigation was unable to replicate this problem.

Tested with the code below and hardware (Arduino SPI library) and software (bitbang) SPI worked ok on both AVR and ESP32 platforms. My ESP32 is a ESP32 Dev Board not Nano - could this make a difference?

#include <MD_Parola.h>
#include <MD_MAX72xx.h>

#define ESP32_TEST

#define HARDWARE_TYPE MD_MAX72XX::FC16_HW
#define MAX_DEVICES 4

#ifdef ESP32_TEST
// ESP32 Definitions
#define CLK_PIN   18
#define DATA_PIN  23
#define CS_PIN    5
#else
// AVR Definitions
#define CLK_PIN   13
#define DATA_PIN  11
#define CS_PIN    10
#endif

// Hardware SPI connection
//MD_Parola P = MD_Parola(HARDWARE_TYPE, CS_PIN, MAX_DEVICES);
// Arbitrary output pins
MD_Parola P = MD_Parola(HARDWARE_TYPE, DATA_PIN, CLK_PIN, CS_PIN, MAX_DEVICES);

void setup(void)
{

  Serial.begin(115200);
  Serial.println("-----");
  Serial.print("MOSI: ");   Serial.println(MOSI);
  Serial.print("MISO: ");   Serial.println(MISO);
  Serial.print("SCK: ");    Serial.println(SCK);
  Serial.print("SS: ");     Serial.println(SS);

  if (!P.begin()) Serial.println("!!P.begin() error");
  P.print("Hello!");
}

void loop(void)
{
}

[MajicDesigns]

Close as no response from OP