reorganize HW defs again, add generic boards, allow undefined CAN rx/tx

lib/hardware/GwHardware.h

@@ -48,68 +48,62 @@
   #define BOARD_LEFT2 GPIO_NUM_6
 #endif
 
-//serial adapter at the M5 groove pins
-#define SERIAL_GROOVE(SMODE) \
-  static const gpio_num_t GWSERIAL_TX=GROOVE_PIN_1; \
-  static const gpio_num_t GWSERIAL_RX=GROOVE_PIN_2; \
-  static const char* GWSERIAL_MODE=SMODE;
-
-//M5 Serial (Atomic RS232 Base)
-#define SERIAL_KIT(SMODE) \
-  static const gpio_num_t GWSERIAL_TX=BOARD_LEFT2; \
-  static const gpio_num_t GWSERIAL_RX=BOARD_LEFT1; \
-  static const char* GWSERIAL_MODE=SMODE;
-
-
-#define CANKIT \
-  static const gpio_num_t ESP32_CAN_TX_PIN=BOARD_LEFT1; \
-  static const gpio_num_t ESP32_CAN_RX_PIN=BOARD_LEFT2;
+//M5Stick C
+#ifdef PLATFORM_BOARD_M5STICK_C
+  #define GROOVE_PIN_1 GPIO_NUM_32
+  #define GROOVE_PIN_2 GPIO_NUM_31
+#endif
 
-#define CANUNIT \
-  static const gpio_num_t ESP32_CAN_TX_PIN=GROOVE_PIN_1; \
-  static const gpio_num_t ESP32_CAN_RX_PIN=GROOVE_PIN_2;
-//SERIAL_MODE can be: UNI (RX or TX only), BI (both), RX, TX
-//board specific pins
 #ifdef BOARD_M5ATOM
-CANKIT
+#define M5_CAN_KIT
+//150mA if we power from the bus
+#define N2K_LOAD_LEVEL 3 
+//if using tail485
+#define SERIAL_GROOVE_485
+//brightness 0...255
+#define GWLED_BRIGHTNESS 64
+#endif
+
+#ifdef BOARD_M5ATOMS3
+#define M5_CAN_KIT
 //150mA if we power from the bus
 #define N2K_LOAD_LEVEL 3 
 //if using tail485
-SERIAL_GROOVE("UNI")
+#define SERIAL_GROOVE_485
 //brightness 0...255
 #define GWLED_BRIGHTNESS 64
 #endif
 
 #ifdef BOARD_M5ATOM_CANUNIT
-CANUNIT
+#define M5_CANUNIT
 #define GWLED_BRIGHTNESS 64
 //150mA if we power from the bus
 #define N2K_LOAD_LEVEL 3 
 #endif
 
 #ifdef BOARD_M5ATOMS3_CANUNIT
-CANUNIT
+#define M5_CANUNIT
 #define GWLED_BRIGHTNESS 64
 #endif
 
 
 #ifdef BOARD_M5ATOM_RS232_CANUNIT
-CANUNIT
-SERIALKIT("BI")
+#define M5_CANUNIT
+#define M5_SERIAL_KIT_232
 #define GWLED_BRIGHTNESS 64
 #endif
 
 #ifdef BOARD_M5ATOM_RS485_CANUNIT
-SERIALKIT("UNI")
-CANUNIT
+#define M5_SERIAL_KIT_485
+#define M5_CANUNIT
 #define GWLED_BRIGHTNESS 64
 #endif
 
 
 #ifdef BOARD_M5STICK_CANUNIT
-#define ESP32_CAN_TX_PIN GPIO_NUM_32
-#define ESP32_CAN_RX_PIN GPIO_NUM_33
+#define M5_CANUNIT
 #endif
+
 #ifdef BOARD_HOMBERGER
 #define ESP32_CAN_TX_PIN GPIO_NUM_5
 #define ESP32_CAN_RX_PIN GPIO_NUM_4
@@ -123,4 +117,44 @@ CANUNIT
 #define GWBUTTON_PULLUPDOWN 
 #endif
 
+//below we define the final device config based on the above
+//boards and peripherals
+//this allows us toe easily also set the from outside
+//serial adapter at the M5 groove pins
+#ifdef SERIAL_GROOVE_485
+  #define GWSERIAL_TX GROOVE_PIN_1
+  #define GWSERIAL_RX GROOVE_PIN_2
+  #define GWSERIAL_MODE "UNI"
+#endif
+#ifdef SERIAL_GROOVE_232
+  #define GWSERIAL_TX GROOVE_PIN_1
+  #define GWSERIAL_RX GROOVE_PIN_2
+  #define GWSERIAL_MODE "BI"
+#endif
+
+//M5 Serial (Atomic RS232 Base)
+#ifdef M5_SERIAL_KIT_232 
+  #define GWSERIAL_TX BOARD_LEFT2
+  #define GWSERIAL_RX BOARD_LEFT1
+  #define GWSERIAL_MODE "BI"
+#endif
+
+//M5 Serial (Atomic RS485 Base)
+#ifdef M5_SERIAL_KIT_485 
+  #define GWSERIAL_TX BOARD_LEFT2
+  #define GWSERIAL_RX BOARD_LEFT1
+  #define GWSERIAL_MODE "UNI"
+#endif
+
+//can kit for M5 Atom
+#ifdef M5_CAN_KIT
+  #define ESP32_CAN_TX_PIN BOARD_LEFT1
+  #define ESP32_CAN_RX_PIN BOARD_LEFT2
+#endif
+//CAN via groove 
+#ifdef M5_CANUNIT
+  #define ESP32_CAN_TX_PIN GROOVE_PIN_1
+  #define ESP32_CAN_RX_PIN GROOVE_PIN_2
+#endif
+
 #endif

platformio.ini

@@ -54,6 +54,14 @@ build_flags =
 upload_port = /dev/esp32
 upload_protocol = esptool
 
+[env:m5stack-atom-generic]
+board = m5stack-atom
+lib_deps = ${env.lib_deps}
+build_flags = 
+	${env.build_flags}
+upload_port = /dev/esp32
+upload_protocol = esptool
+
 [env:m5stack-atoms3]
 board = m5stack-atoms3
 lib_deps = ${env.lib_deps}
@@ -63,6 +71,14 @@ build_flags =
 upload_port = /dev/esp32s3
 upload_protocol = esptool
 
+[env:m5stack-atoms3-generic]
+board = m5stack-atoms3
+lib_deps = ${env.lib_deps}
+build_flags = 
+        ${env.build_flags}
+upload_port = /dev/esp32s3
+upload_protocol = esptool
+
 [env:m5stack-atom-canunit]
 board = m5stack-atom
 lib_deps = ${env.lib_deps}
@@ -118,3 +134,11 @@ build_flags =
 	${env.build_flags}
 upload_port = /dev/esp32
 upload_protocol = esptool
+
+[env:nodemcu-generic]
+board = nodemcu-32s
+lib_deps = ${env.lib_deps}
+build_flags = 
+	${env.build_flags}
+upload_port = /dev/esp32
+upload_protocol = esptool

src/main.cpp

@@ -127,6 +127,14 @@ class Nmea2kTwaiLog : public Nmea2kTwai{
     }
 };
 
+#ifndef ESP32_CAN_TX_PIN
+ #pragma message "WARNING: ESP32_CAN_TX_PIN not defined"
+ #define ESP32_CAN_TX_PIN GPIO_NUM_NC
+#endif
+#ifndef ESP32_CAN_RX_PIN
+ #pragma message "WARNING: ESP32_CAN_RX_PIN not defined"
+ #define ESP32_CAN_RX_PIN GPIO_NUM_NC
+#endif
 
 Nmea2kTwai &NMEA2000=*(new Nmea2kTwaiLog(ESP32_CAN_TX_PIN,ESP32_CAN_RX_PIN,CAN_RECOVERY_PERIOD,&logger));