Added LANA TNY board #164

The LANA TNY is a development board by Phyx based on the CH32V203G6U6.
It is sold through the official Adafruit store: here
It is comparable to the already added Adafruit QT Py CH32V203 (in pull request #136) but has some extra GPIO pins exposed and some slightly different pin arrangement.
openwch/arduino_core_ch32#164

Author: jobitjoseph

variants/CH32V20x/CH32V203G6_LANA_TNY/variant_CH32V203G6_LANA_TNY.cpp

@@ -0,0 +1,81 @@
+/**
+ *******************************************************************************
+ * Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
+ * All rights reserved.
+ *
+ * This software component is licensed by WCH under BSD 3-Clause license,
+ * the "License"; You may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at:
+ *                        opensource.org/licenses/BSD-3-Clause
+ *
+ *******************************************************************************
+ */
+
+
+#include "pins_arduino.h"
+#include "hw_config.h"
+
+
+// Digital PinName array
+const PinName digitalPin[] = {
+  PA_0,   // D0/A0
+  PA_1,   // D1/A1
+  PA_2,   // D2/A2
+  PA_3,   // D3/A3
+  PA_4,   // D4/A4
+  PA_5,   // D5/A5
+  PA_6,   // D6/A6
+  PA_7,   // D7/A7
+  PA_9,   // D8
+  PA_13,  // D9
+  PA_14,  // D10
+  PA_15,  // D11
+  PB_0,   // D12/A8
+  PB_1,   // D13/A9
+  PB_3,   // D14
+  PB_4,   // D15
+  PB_5,   // D16
+  PB_6,   // D17
+  PB_7,   // D18
+  PB_8,   // D19/BOOT0
+  PD_0,   // D20/NEOPIXEL_PIN
+  PD_1,   // D21
+};
+// note: PA_11 and PA_12 are connected to USB connector
+// note: PA_8, PA_10 and PB_2 are not available on CH32V203G6U6
+
+
+// Analog (Ax) pin number array
+const uint32_t analogInputPin[] = {
+  0,  // A0, PA0
+  1,  // A1, PA1
+  2,  // A2, PA2
+  3,  // A3, PA3
+  4,  // A4, PA4
+  5,  // A5, PA5
+  6,  // A6, PA6
+  7,  // A7, PA7
+  12, // A8, PB0
+  13, // A9, PB1
+};
+
+
+extern "C" {
+
+
+void pre_init(void) {
+  hw_config_init();
+
+
+  // Enable PD0 and PD1 as GPIO
+  RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);
+  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD, ENABLE);
+  GPIO_PinRemapConfig(GPIO_Remap_PD01, ENABLE);
+
+
+  // Enable PA13 and PA14 as GPIO
+  GPIO_PinRemapConfig(GPIO_Remap_SWJ_Disable, ENABLE);
+}
+
+
+}