Issue with creating custom board variant

[avencan]

Hi,

Is anyone able to guide me to create my own custom board variant, my custom ESP32-S3 board uses an CP2102N to program it, and I think that's the issue.

This is the error I get when trying to upload code using the variant files I made:

In file included from C:\Users\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.11\cores\esp32/HardwareSerial.h:53,
from C:\Users\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.11\cores\esp32/Arduino.h:184,
from C:\Users\AppData\Local\Temp\arduino\sketches\9430DD51CDD3329B904117317710C7FB\sketch\Sketch_01.2_Blink.ino.cpp:1:
C:\Users\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.11\cores\esp32/HWCDC.h:101:21: error: #if with no expression
#if ARDUINO_USB_MODE
^
In file included from C:\Users\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.11\cores\esp32/Arduino.h:184,
from C:\Users\AppData\Local\Temp\arduino\sketches\9430DD51CDD3329B904117317710C7FB\sketch\Sketch_01.2_Blink.ino.cpp:1:
C:\Users\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.11\cores\esp32/HardwareSerial.h:199:54: error: #if with no expression
#if ARDUINO_USB_CDC_ON_BOOT //Serial used for USB CDC
^

exit status 1

Compilation error: exit status 1

This is the pins_arduino.h file:

#ifndef Pins_Arduino_h
#define Pins_Arduino_h

#include <stdint.h>

#define EXTERNAL_NUM_INTERRUPTS 46
#define NUM_DIGITAL_PINS 48
#define NUM_ANALOG_INPUTS 20

#define analogInputToDigitalPin(p) (((p)<20)?(analogChannelToDigitalPin(p)):-1)
#define digitalPinToInterrupt(p) (((p)<48)?(p):-1)
#define digitalPinHasPWM(p) (p < 46)

static const uint8_t TX = 43;
static const uint8_t RX = 44;
#define TX1 TX
#define RX1 RX

static const uint8_t SDA = 2;
static const uint8_t SCL = 3;

static const uint8_t SS = 36;
static const uint8_t MOSI = 35;
static const uint8_t MISO = 34;
static const uint8_t SCK = 33;

static const uint8_t RGB_PIN = 38; // RGB LED Pin
static const uint8_t RF_SWITCH = 37; // RF switch Pin
static const uint8_t LDR_PIN = 17; // LDR Pin

#endif /* Pins_Arduino_h */

This is the boards.txt entry:

aventen_s3_sync.name=Aventen S3 Sync

aventen_s3_sync.upload.tool=esptool_py
aventen_s3_sync.upload.maximum_size=16777216
aventen_s3_sync.upload.maximum_data_size=327680
aventen_s3_sync.upload.speed=921600

aventen_s3_sync.serial.disableDTR=false
aventen_s3_sync.serial.disableRTS=false

aventen_s3_sync.build.tarch=xtensa
aventen_s3_sync.build.target=esp32s3
aventen_s3_sync.build.mcu=esp32s3
aventen_s3_sync.build.core=esp32
aventen_s3_sync.build.variant=aventen_s3_sync
aventen_s3_sync.build.board=AVENTEN_S3_SYNC
aventen_s3_sync.build.f_cpu=240000000L
aventen_s3_sync.build.flash_size=16MB
aventen_s3_sync.build.flash_freq=80m
aventen_s3_sync.build.flash_mode=dio
aventen_s3_sync.build.boot=dio
aventen_s3_sync.build.partitions=default

aventen_s3_sync.build.defines=-DBOARD_HAS_PSRAM
aventen_s3_sync.menu.PSRAM.enabled=Enabled
aventen_s3_sync.menu.PSRAM.enabled.build.defines=-DBOARD_HAS_PSRAM
aventen_s3_sync.menu.PSRAM.disabled=Disabled

aventen_s3_sync.menu.PartitionScheme.default=Default
aventen_s3_sync.menu.PartitionScheme.default.build.partitions=default

aventen_s3_sync.menu.DebugLevel.none=None
aventen_s3_sync.menu.DebugLevel.none.build.code_debug=0

aventen_s3_sync.menu.EraseFlash.none=Disabled
aventen_s3_sync.menu.EraseFlash.none.upload.erase_cmd=
aventen_s3_sync.menu.EraseFlash.all=Enabled
aventen_s3_sync.menu.EraseFlash.all.upload.erase_cmd=-e
(boards.txt entry)

I think the error has to do with me using the CP2102N to programme the ESP32 S3, I currently don't want to use OTG, so no need for the tinyusb bootloader

Also I don't think I need the variant.cpp file for this board for now.

Thank you :)