Add board lilygo_ttgo_t-01c3

ports/espressif/boards/lilygo_ttgo_t-01c3/board.c

@@ -0,0 +1,38 @@
+#include "shared-bindings/microcontroller/Pin.h"
+#include "supervisor/board.h"
+
+#include "components/driver/include/driver/gpio.h"
+
+void board_init(void) {
+    // Debug UART
+    #ifdef DEBUG
+    common_hal_never_reset_pin(&pin_GPIO20);
+    common_hal_never_reset_pin(&pin_GPIO21);
+    #endif
+}
+
+bool board_requests_safe_mode(void) {
+    return false;
+}
+
+bool espressif_board_reset_pin_number(gpio_num_t pin_number) {
+    // Pull LED down on reset rather than the default up
+    if (pin_number == MICROPY_HW_LED_STATUS->number) {
+        gpio_config_t cfg = {
+            .pin_bit_mask = BIT64(pin_number),
+            .mode = GPIO_MODE_DISABLE,
+            .pull_up_en = false,
+            .pull_down_en = true,
+            .intr_type = GPIO_INTR_DISABLE,
+        };
+        gpio_config(&cfg);
+        return true;
+    }
+    return false;
+}
+
+void reset_board(void) {
+}
+
+void board_deinit(void) {
+}

ports/espressif/boards/lilygo_ttgo_t-01c3/mpconfigboard.h

@@ -0,0 +1,10 @@
+#define MICROPY_HW_BOARD_NAME       "LILYGO TTGO T-01C3"
+#define MICROPY_HW_MCU_NAME         "ESP32-C3"
+
+#define MICROPY_HW_LED_STATUS       (&pin_GPIO3)
+
+#define DEFAULT_UART_BUS_RX         (&pin_GPIO20)
+#define DEFAULT_UART_BUS_TX         (&pin_GPIO21)
+
+#define CIRCUITPY_DEBUG_UART_RX     DEFAULT_UART_BUS_RX
+#define CIRCUITPY_DEBUG_UART_TX     DEFAULT_UART_BUS_TX

ports/espressif/boards/lilygo_ttgo_t-01c3/mpconfigboard.mk

@@ -0,0 +1,10 @@
+CIRCUITPY_CREATOR_ID = 123
+CIRCUITPY_CREATION_ID = 123
+
+IDF_TARGET = esp32c3
+
+INTERNAL_FLASH_FILESYSTEM = 1
+
+CIRCUITPY_ESP_FLASH_MODE = dio
+CIRCUITPY_ESP_FLASH_FREQ = 80m
+CIRCUITPY_ESP_FLASH_SIZE = 4MB

ports/espressif/boards/lilygo_ttgo_t-01c3/pins.c

@@ -0,0 +1,20 @@
+#include "shared-bindings/board/__init__.h"
+
+STATIC const mp_rom_map_elem_t board_module_globals_table[] = {
+    CIRCUITPYTHON_BOARD_DICT_STANDARD_ITEMS
+
+    { MP_ROM_QSTR(MP_QSTR_IO2), MP_ROM_PTR(&pin_GPIO2) },
+    { MP_ROM_QSTR(MP_QSTR_IO8), MP_ROM_PTR(&pin_GPIO8) },
+    { MP_ROM_QSTR(MP_QSTR_IO9), MP_ROM_PTR(&pin_GPIO9) },
+
+    { MP_ROM_QSTR(MP_QSTR_RX), MP_ROM_PTR(&pin_GPIO20) },
+    { MP_ROM_QSTR(MP_QSTR_IO20), MP_ROM_PTR(&pin_GPIO20) },
+    { MP_ROM_QSTR(MP_QSTR_TX), MP_ROM_PTR(&pin_GPIO21) },
+    { MP_ROM_QSTR(MP_QSTR_IO21), MP_ROM_PTR(&pin_GPIO21) },
+
+    { MP_ROM_QSTR(MP_QSTR_LED), MP_ROM_PTR(&pin_GPIO3) },
+    { MP_ROM_QSTR(MP_QSTR_IO3), MP_ROM_PTR(&pin_GPIO3) },
+
+    { MP_ROM_QSTR(MP_QSTR_UART), MP_ROM_PTR(&board_uart_obj) },
+};
+MP_DEFINE_CONST_DICT(board_module_globals, board_module_globals_table);

ports/espressif/boards/lilygo_ttgo_t-01c3/sdkconfig

@@ -0,0 +1,5 @@
+#
+# LWIP
+#
+CONFIG_LWIP_LOCAL_HOSTNAME="LILYGO TTGO T-01C3"
+# end of LWIP