arduino uno r4 wifi spi

#include "SPI.h"
#define CS_PIN 10
#define SPI_CLOCK 1000000

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

//define LED_BUILTIN as an outpu
Serial.println("2024-03-07 Aleksander Kaweczynski");
Serial.println("PD SPI TEST");
Serial.println("SCK - D13");
Serial.println("MISO - D12");
Serial.println("MOSI - D11");
Serial.println("CS - D10 (low during transfer)");

pinMode(CS_PIN, OUTPUT);
digitalWrite(CS_PIN, HIGH);
// pinMode(12, OUTPUT);
SPI.begin();
}

void loop() {

SPI.beginTransaction(SPISettings(SPI_CLOCK, MSBFIRST, SPI_MODE0));

SPI.transfer(0xAA);
SPI.transfer(0x55);
delayMicroseconds(1);
digitalWrite(CS_PIN, LOW);
delayMicroseconds(1);
digitalWrite(CS_PIN, HIGH);
SPI.endTransaction();
Serial.println("DATA: 0xAA 0x55");
delay(1000);

SPI.beginTransaction(SPISettings(SPI_CLOCK, MSBFIRST, SPI_MODE0));
SPI.transfer(0x00);
SPI.transfer(0x00);
delayMicroseconds(1);
digitalWrite(CS_PIN, LOW);
delayMicroseconds(1);
digitalWrite(CS_PIN, HIGH);
SPI.endTransaction();
Serial.println("DATA: 0x00 0x00");
delay(1000);
}