diff --git a/examples/anymcu-header/.gitignore b/examples/anymcu-header/.gitignore
index 6c69f4c..03f4a3c 100644
--- a/examples/anymcu-header/.gitignore
+++ b/examples/anymcu-header/.gitignore
@@ -1,2 +1 @@
-.pioenvs
-.piolibdeps
+.pio
diff --git a/examples/native-blink/.gitignore b/examples/native-blink/.gitignore
index 6c69f4c..03f4a3c 100644
--- a/examples/native-blink/.gitignore
+++ b/examples/native-blink/.gitignore
@@ -1,2 +1 @@
-.pioenvs
-.piolibdeps
+.pio
diff --git a/examples/native-blink/src/blinky.c b/examples/native-blink/src/blinky.c
index 4abe513..3d7e22f 100755
--- a/examples/native-blink/src/blinky.c
+++ b/examples/native-blink/src/blinky.c
@@ -42,7 +42,7 @@ void _delay_ms(unsigned char ms)
 
 const char* startstring = "\nSTC15F204EA starting up...\n";
 
-int main()
+void main(void)
 {
     /* init the software uart */
     UART_INIT();
diff --git a/examples/native-blink/src/serial.c b/examples/native-blink/src/serial.c
index 7e2a76d..aeebb24 100755
--- a/examples/native-blink/src/serial.c
+++ b/examples/native-blink/src/serial.c
@@ -34,7 +34,7 @@ __data __at 0x0F volatile BYTE RBIT;
 volatile BOOL TING,RING;
 volatile BOOL TEND,REND;
 
-void UART_INIT();
+void UART_INIT(void);
 
 void putchar(unsigned char c)
 {
@@ -90,7 +90,7 @@ void main()
 //__data __at 0x0D BYTE RCNT;
 //__data __at 0x0E BYTE TBIT;
 //__data __at 0x0F BYTE RBIT;	=> ar7
-void _tm1() __interrupt 3 __using 1
+void _tm1(void) __interrupt (3) __using (1)
 {
 	__asm
 		jb	_RING,00002$	
@@ -140,7 +140,7 @@ void _tm1() __interrupt 3 __using 1
 
 //-----------------------------------------
 //initial UART module variable
-void UART_INIT()
+void UART_INIT(void)
 {
 	TING = 0;
 	RING = 0;
diff --git a/examples/native-blink/src/serial.h b/examples/native-blink/src/serial.h
index 227229a..a2fe882 100755
--- a/examples/native-blink/src/serial.h
+++ b/examples/native-blink/src/serial.h
@@ -7,7 +7,7 @@
 /*-------------------------------------------------------------------------------*/
 
 void UART_INIT(void);
-void _tm1() __interrupt 3 __using 1;
+void _tm1(void);
 #ifndef PLATFORMIO
 void putchar(unsigned char);
 #endif
diff --git a/examples/stc-blink/.gitignore b/examples/stc-blink/.gitignore
index 6c69f4c..03f4a3c 100644
--- a/examples/stc-blink/.gitignore
+++ b/examples/stc-blink/.gitignore
@@ -1,2 +1 @@
-.pioenvs
-.piolibdeps
+.pio
diff --git a/examples/stc-header/.gitignore b/examples/stc-header/.gitignore
index 6c69f4c..03f4a3c 100644
--- a/examples/stc-header/.gitignore
+++ b/examples/stc-header/.gitignore
@@ -1,2 +1 @@
-.pioenvs
-.piolibdeps
+.pio
diff --git a/platform.json b/platform.json
index b704c5f..e36ee7a 100644
--- a/platform.json
+++ b/platform.json
@@ -18,18 +18,18 @@
     "type": "git",
     "url": "https://github.com/platformio/platform-intel_mcs51.git"
   },
-  "version": "2.1.0",
+  "version": "2.2.0",
   "packages": {
     "toolchain-sdcc": {
       "type": "toolchain",
       "owner": "platformio",
-      "version": ">=1.40100.0,<1.40201.0"
+      "version": ">=1.40100.0,<1.40401.0"
     },
     "tool-stcgal": {
       "type": "uploader",
       "optional": true,
       "owner": "platformio",
-      "version": "~1.106.0"
+      "version": "~1.110.0"
     },
     "tool-vnproch55x": {
       "type": "uploader",