Teensy 4 and ESP32 and WiFiNina

[gredpath]

I have designed a custom board using a standard Teensy 4 and an ESP32.
Using the Adafruit code, I have downloaded the Adafruit latest1.6 WiFiNina code to the ESP32.
When I try to run the ScanNetworks sketch, I get "Communication with the WiFi module failed".
I can see on my scope that I am getting a well formed MISO signal, so the module is responding.
I have connected the module as follows
#define SPIWIFI SPI // The SPI port
#define SPIWIFI_SS 31 // Chip select pin
#define ESP32_RESETN 26 // Reset pin
#define SPIWIFI_ACK 23 // a.k.a BUSY or READY
#define ESP32_GPIO0 30
Has anyone succeeded in getting the ESP32 running WiFiNina to work with a Teensy 4.
Has anyone got the ESP32 to work with the Teensy 4?

 

[blackketter]

I've only used serial to connect to an ESP32, but hope to use the WifiNina firmware soon. Can you show the pins you are using to connect the two?

 

[gredpath]

I am using the WiFiNina generic library. These are pins I am using and these are set in WiFiNINA_Pinout_generic.h
elif defined(CORE_TEENSY)

#warning You have to modify pin usage according to actual connection for Teensy
#define PINS_COUNT (60u)
//NINA
#define NINA_GPIO0 (30u) //26
#define NINA_RESETN (26u)
#define NINA_ACK (23u)

#define SPIWIFI_SS 31 //PIN_SPI1_SS //24
#define SPIWIFI_ACK 23 //NINA_ACK //28
#define SPIWIFI_RESET 26 //NINA_RESETN //27

I am getting very close, I can reprogram the part, and I get a SPI response on MISO, but it still fails to be identified by the scan networks sketch.

 

[gredpath]

I am also using the standard SPI port, unfortunately the Teensy 4 is short on pins, hope to get a 4.1 as soon as they are released!
So MOSI is 11 MISO is 12 and SCK is 13, I think I am using 31 as Chip select, but the example is returning pin 10 as SS.