Fix problems caused by insensitive case of file names in Windows.

Author: bitsk

libraries/SPI/src/SPI.cpp cores/arduino/SPI.cpplibraries/SPI/src/SPI.cpp renamed to cores/arduino/SPI.cpp

@@ -6,7 +6,7 @@
 #include "fpioa.h"
 #include "stdint.h"
 #include "stdbool.h"
-#include "spi.h"
+#include "./kendryte-standalone-sdk/lib/drivers/include/spi.h"
 #include "SPI_hal.h"
 #include "sysctl.h"
 

libraries/SPI/src/SPI.h cores/arduino/SPI.hlibraries/SPI/src/SPI.h renamed to cores/arduino/SPI.h

@@ -4,7 +4,7 @@
 #include <stdint.h>
 #include "gpio.h"
 #include "fpioa.h"
-#include "spi.h"
+#include "./kendryte-standalone-sdk/lib/drivers/include/spi.h"
 
 #ifdef __cplusplus
 extern "C" {

libraries/Sipeed_ST7789/src/st7789.c cores/arduino/st7789.clibraries/Sipeed_ST7789/src/st7789.c renamed to cores/arduino/st7789.c

@@ -1,20 +1,17 @@
 #include "SPI.h"
 
-SPIClass spi0(SPI0);
 
 void setup()
 {
-    spi0.setFrequency(10000000);
-    spi0.begin(27, 26, 28, 29);
-    spi0.transfer(1);
-    spi0.transfer(2);
-    spi0.transfer(3);
-    spi0.transfer(0xEE);
+    SPI.setFrequency(10000000);
+    SPI.begin(27, 26, 28, 29);
+    SPI.transfer(1);
+    SPI.transfer(2);
+    SPI.transfer(3);
+    SPI.transfer(0xEE);
 }
 
 void loop()
 {
 
 }
-
-