update i2c and spi examples to only have built in interfaces by default, custom interface can be tested by user defined pins

Author: Wenn0101

libraries/Apollo3/examples/I2C/I2C.ino

@@ -36,6 +36,8 @@
 
 #include "Wire.h"
 
+void testPortI2C(TwoWire &i2c);
+
 // This thread will use the pre-defined SPI object if it exists
 #if VARIANT_WIRE_INTFCS > 0
 rtos::Thread wire_thread;
@@ -55,16 +57,18 @@ void wire1_thread_fn( void ){
   delay(100);
   Wire1.begin();
   while(1){
-    testPortWire(Wire1);
+    testPortI2C(Wire1);
     delay(1000);
   }
 }
 #endif
 
 // This thread will create its own MbedI2C object using IOM pins
-#define mySDA D25
-#define mySCL D27
-MbedI2C myWire(mySDA, mySCL);
+// Define your own pins below to try it
+//#define mySDA D25
+//#define mySCL D27
+#if (defined mySDA) && (defined mySCL)
+TwoWire myWire(mySDA, mySCL);
 rtos::Thread mywire_thread;
 void mywire_thread_fn( void ){
   delay(200);
@@ -74,8 +78,9 @@ void mywire_thread_fn( void ){
     delay(1000);
   }
 }
+#endif
 
-void testPortI2C(MbedI2C &i2c){
+void testPortI2C(TwoWire &i2c){
   Serial.printf("Scanning... (port: 0x%08X), time (ms): %d\n", (uint32_t)&i2c, millis());
 
   uint8_t detected = 0;
@@ -111,12 +116,14 @@ void setup() {
   wire1_thread.start(wire1_thread_fn);
 #endif
 
+#if (defined mySDA) && (defined mySCL)
    mywire_thread.start(mywire_thread_fn);
+#endif   
 }
 
 void loop() {
   digitalWrite(LED_BUILTIN, LOW);
   delay(1000);
   digitalWrite(LED_BUILTIN, HIGH);
   delay(1000);
-}
+}

libraries/Apollo3/examples/SPI/SPI.ino

@@ -46,11 +46,12 @@
 // define pins to create a custom SPI port
 // using mbed PinNames or Arduino pin numbers
 // (must be all pins from one IOM module)
-#define mySDI D25
-#define mySDO D28
-#define myCLK D27
-
+//#define mySDI D25
+//#define mySDO D28
+//#define myCLK D27
+#if (defined mySDI) && (defined mySDO) && (defined myCLK)
 MbedSPI mySPI(mySDI, mySDO, myCLK); // declare the custom MbedSPI object mySPI
+#endif
 
 // define a macro to aid testing
 #define TEST_SPI_PORT(P)  SERIAL_PORT.printf("testing %s\n\ttime (ms): %d\n\tbyte transer: %s\n\tbuffer transfer: %s\n\n", #P, millis(), ((test_byte_transfer(P) == 0) ? "pass" : "fail"), ((test_buffer_transfer(P) == 0) ? "pass" : "fail"))
@@ -68,7 +69,9 @@ void spi_thread_fn( void ){
 #endif
 }
 
+
 // this thread tests the custom mySPI object
+#if (defined mySDI) && (defined mySDO) && (defined myCLK)
 extern "C" SPIName spi_get_peripheral_name(PinName mosi, PinName miso, PinName sclk); // this mbed internal function determines the IOM module number for a set of pins
 rtos::Thread myspi_thread;
 void myspi_thread_fn( void ){
@@ -80,6 +83,7 @@ void myspi_thread_fn( void ){
     delay(500);
   }
 }
+#endif
 
 int test_byte_transfer( SPIClass &spi  ){
   uint8_t tx = random(1, 256);
@@ -125,7 +129,9 @@ void setup() {
   digitalWrite(CS_PIN, HIGH);
 
   spi_thread.start(spi_thread_fn);
+  #if (defined mySDI) && (defined mySDO) && (defined myCLK)
   myspi_thread.start(myspi_thread_fn);  
+  #endif
 }
 
 void loop() {