added another example for foo

main.cpp

@@ -39,6 +39,8 @@ void dummy()
 
 void foo()
 {
+
+	uint8_t a[]= {1,2,3,4,5,6,7,8,9,10};
 	std::cout << "foo" << std::endl;
 
 	baa(rpin);
@@ -47,6 +49,9 @@ void foo()
 	std::cout << "SPI test:" << std::endl;
 	spiCH.read_write_u8(10);
 
+
+	spiCH.writeArray(10,a,sizeof(a));
+
 }
 
 int main(int argc, char *argv[])