Adding support for Arduino Nano 33 IoT

Author: aentinger

libraries/SNU/extras/NiNaBoot/NiNaBoot.ino

@@ -54,7 +54,7 @@ int main() {
   FPGA.digitalWrite(NINA_GPIO0,  HIGH);
   FPGA.pinMode     (NINA_RESETN, OUTPUT);
   FPGA.digitalWrite(NINA_RESETN, HIGH);
-#elif defined(ARDUINO_SAMD_MKRWIFI1010)
+#elif defined(ARDUINO_SAMD_MKRWIFI1010) || defined(ARDUINO_SAMD_NANO_33_IOT)
   /* NINA select SPI mode and enable (by setting RESETN = '1') */
   pinMode     (NINA_GPIO0,  OUTPUT);
   digitalWrite(NINA_GPIO0,  HIGH);

libraries/SNU/extras/NiNaBoot/build.sh

@@ -23,3 +23,4 @@ mkdir -p "$OUTPUT_PATH"
 
 buildSDUBootSketch "arduino:samd:mkrwifi1010" "$OUTPUT_PATH/mkrwifi1010.h"
 buildSDUBootSketch "arduino:samd:mkrvidor4000" "$OUTPUT_PATH/mkrvidor4000.h"
+buildSDUBootSketch "arduino:samd:nano_33_iot" "$OUTPUT_PATH/nano33iot.h"

libraries/SNU/src/SNU.cpp

@@ -26,6 +26,8 @@ unsigned char sduBoot[0x4000] = {
   #include "boot/mkrwifi1010.h"
 #elif defined(ARDUINO_SAMD_MKRVIDOR4000)
   #include "boot/mkrvidor4000.h"
+#elif defined(ARDUINO_SAMD_NANO_33_IOT)
+  #include "boot/nano33iot.h"
 #else
   #error "Unsupported board!"
 #endif