Initial project setup

managed_components/espressif__tinyusb/hw/bsp/ch32v20x/boards/nanoch32v203/board.cmake

@@ -0,0 +1,13 @@
+set(MCU_VARIANT D6)
+
+# 64KB zero-wait, 224KB total flash
+set(LD_FLASH_SIZE 64K)
+#set(LD_FLASH_SIZE 224K)
+set(LD_RAM_SIZE 20K)
+
+function(update_board TARGET)
+  target_compile_definitions(${TARGET} PUBLIC
+    SYSCLK_FREQ_144MHz_HSE=144000000
+    CFG_EXAMPLE_MSC_DUAL_READONLY
+    )
+endfunction()

managed_components/espressif__tinyusb/hw/bsp/ch32v20x/boards/nanoch32v203/board.h

@@ -0,0 +1,28 @@
+/* metadata:
+   name: nanoCH32V203
+   url: https://github.com/wuxx/nanoCH32V203
+*/
+
+#ifndef BOARD_H_
+#define BOARD_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define LED_PORT       GPIOA
+#define LED_PIN        GPIO_Pin_15
+#define LED_STATE_ON   0
+#define LED_CLOCK_EN() RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE)
+#define LED_MODE       GPIO_Mode_Out_OD
+
+#define UART_DEV        USART1
+#define UART_CLOCK_EN() RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1, ENABLE)
+#define UART_TX_PIN     GPIO_Pin_9
+#define UART_RX_PIN     GPIO_Pin_10
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif

managed_components/espressif__tinyusb/hw/bsp/ch32v20x/boards/nanoch32v203/board.mk

@@ -0,0 +1,11 @@
+MCU_VARIANT = D6
+
+CFLAGS += \
+  -DSYSCLK_FREQ_144MHz_HSE=144000000 \
+	-DCH32_FLASH_ENHANCE_READ_MODE=1 \
+  -DCFG_EXAMPLE_MSC_DUAL_READONLY \
+
+# 64KB zero-wait , 224KB total flash
+LDFLAGS += \
+  -Wl,--defsym=__FLASH_SIZE=224K \
+  -Wl,--defsym=__RAM_SIZE=20K \