minor platform macro changes

worked on code for LoRa SX1276

Platforms.h

@@ -7,20 +7,32 @@
 // https://blog.anto.io/wp-content/uploads/2016/12/esp32.png
 // https://i.pinimg.com/originals/c6/57/83/c657835e84aaf91832a770ea0d7d0767.jpg
 #define WROOM32_DEVKIT			32
+#define TTGO					33
 
 
 #define ESP8266		(PLATFORM == WEMOS_D1_MINI) || (PLATFORM == NODE_MCU)
-#define ESP32		(PLATFORM == WROOM32_DEVKIT)
+#define ESP32		(PLATFORM == WROOM32_DEVKIT) || (PLATFORM == TTGO)
 
-
-#if (PLATFORM == WROOM32_DEVKIT)
-	#define DELAY_US(us)		ets_delay_us(us)
-	#define IN_FLASH
+#ifndef PLATFORM
+	#error "PLATFORM compile time variable not defined"
 #endif
 
-#if (PLATFORM == WEMOS_D1_MINI) || (PLATFORM == NODE_MCU)
+#if (ESP32)
+
+	#pragma message "Using ESP32"
+	#define DELAY_US(us)		ets_delay_us(us)
+	#define IN_FLASH
+	
+#elif (ESP8266)
+
+	#pragma message "Using ESP8266"
 	#define DELAY_US(us)		os_delay_us(us)
 	#define IN_FLASH			ICACHE_FLASH_ATTR
+	
+#else
+
+	#error "unsupported platform";
+	
 #endif
 
 //#define min(a,b) (a<b) ? (a) : (b)