1 files changed, 133 insertions, 0 deletions
diff --git a/tinyusb/hw/bsp/nutiny_sdk_nuc120/nutiny_sdk_nuc120.c b/tinyusb/hw/bsp/nutiny_sdk_nuc120/nutiny_sdk_nuc120.c
new file mode 100755
index 00000000..0d78116b
--- /dev/null
+++ b/tinyusb/hw/bsp/nutiny_sdk_nuc120/nutiny_sdk_nuc120.c
@@ -0,0 +1,133 @@
+/* 
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 Ha Thach (tinyusb.org)
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ * This file is part of the TinyUSB stack.
+ */
+
+#include "bsp/board.h"
+#include "NUC100Series.h"
+#include "clk.h"
+#include "sys.h"
+
+//--------------------------------------------------------------------+
+// Forward USB interrupt events to TinyUSB IRQ Handler
+//--------------------------------------------------------------------+
+void USBD_IRQHandler(void)
+{
+  tud_int_handler(0);
+}
+
+//--------------------------------------------------------------------+
+// MACRO TYPEDEF CONSTANT ENUM
+//--------------------------------------------------------------------+
+#define LED_PORT     PB
+#define LED_PIN      0
+#define LED_PIN_IO   PB0
+#define LED_STATE_ON 0
+
+void board_init(void)
+{
+  SYS_UnlockReg();
+
+  /* Enable Internal RC 22.1184 MHz clock */
+  CLK_EnableXtalRC(CLK_PWRCON_OSC22M_EN_Msk);
+
+  /* Waiting for Internal RC clock ready */
+  CLK_WaitClockReady(CLK_CLKSTATUS_OSC22M_STB_Msk);
+
+  /* Switch HCLK clock source to Internal RC and HCLK source divide 1 */
+  CLK_SetHCLK(CLK_CLKSEL0_HCLK_S_HIRC, CLK_CLKDIV_HCLK(1));
+
+  /* Enable external XTAL 12 MHz clock */
+  CLK_EnableXtalRC(CLK_PWRCON_XTL12M_EN_Msk);
+
+  /* Waiting for external XTAL clock ready */
+  CLK_WaitClockReady(CLK_CLKSTATUS_XTL12M_STB_Msk);
+
+  /* Set core clock */
+  CLK_SetCoreClock(48000000);
+
+  /* Enable module clock */
+  CLK_EnableModuleClock(USBD_MODULE);
+
+  /* Select module clock source */
+  CLK_SetModuleClock(USBD_MODULE, 0, CLK_CLKDIV_USB(1));
+
+  SYS_LockReg();
+
+#if CFG_TUSB_OS  == OPT_OS_NONE
+  // 1ms tick timer
+  SysTick_Config(48000000 / 1000);
+#endif
+
+  GPIO_SetMode(LED_PORT, 1UL << LED_PIN, GPIO_PMD_OUTPUT);
+}
+
+#if CFG_TUSB_OS  == OPT_OS_NONE
+volatile uint32_t system_ticks = 0;
+void SysTick_Handler (void)
+{
+  system_ticks++;
+}
+
+uint32_t board_millis(void)
+{
+  return system_ticks;
+}
+#endif
+
+//--------------------------------------------------------------------+
+// Board porting API
+//--------------------------------------------------------------------+
+
+void board_led_write(bool state)
+{
+#if 0
+  /* this would be the simplest solution... *IF* the part supported the pin data interface */
+  LED_PIN_IO = (state) ? LED_STATE_ON : (1-LED_STATE_ON);
+#else
+  /* if the part's *PDIO pin data registers don't work, a more elaborate approach is needed */
+  uint32_t irq_state = __get_PRIMASK();
+  __disable_irq();
+  uint32_t current = LED_PORT->DOUT & ~(1UL << LED_PIN);
+  LED_PORT->DOUT = current | (((state) ? LED_STATE_ON : (1UL-LED_STATE_ON)) << LED_PIN);
+  __set_PRIMASK(irq_state);
+#endif
+}
+
+uint32_t board_button_read(void)
+{
+  return 0;
+}
+
+int board_uart_read(uint8_t* buf, int len)
+{
+  (void) buf; (void) len;
+  return 0;
+}
+
+int board_uart_write(void const * buf, int len)
+{
+  (void) buf; (void) len;
+  return 0;
+}