adding nrf52840 port, able to blink led with pca10056

1 files changed, 152 insertions, 0 deletions

diff --git a/examples/device/nrf52840/src/main.c b/examples/device/nrf52840/src/main.c
new file mode 100644
index 000000000..724cb96e2
--- /dev/null
+++ b/examples/device/nrf52840/src/main.c
@@ -0,0 +1,152 @@
+/**************************************************************************/
+/*!
+    @file     main.c
+    @author   hathach (tinyusb.org)
+
+    @section LICENSE
+
+    Software License Agreement (BSD License)
+
+    Copyright (c) 2013, hathach (tinyusb.org)
+    All rights reserved.
+
+    Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions are met:
+    1. Redistributions of source code must retain the above copyright
+    notice, this list of conditions and the following disclaimer.
+    2. Redistributions in binary form must reproduce the above copyright
+    notice, this list of conditions and the following disclaimer in the
+    documentation and/or other materials provided with the distribution.
+    3. Neither the name of the copyright holders nor the
+    names of its contributors may be used to endorse or promote products
+    derived from this software without specific prior written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
+    EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+    WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+    DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
+    DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+    INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+    LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION HOWEVER CAUSED AND
+    ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+    INCLUDING NEGLIGENCE OR OTHERWISE ARISING IN ANY WAY OUT OF THE USE OF THIS
+    SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+    This file is part of the tinyusb stack.
+*/
+/**************************************************************************/
+
+//--------------------------------------------------------------------+
+// INCLUDE
+//--------------------------------------------------------------------+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "bsp/board.h"
+#include "tusb.h"
+
+//--------------------------------------------------------------------+
+// MACRO CONSTANT TYPEDEF
+//--------------------------------------------------------------------+
+
+//--------------------------------------------------------------------+
+// INTERNAL OBJECT & FUNCTION DECLARATION
+//--------------------------------------------------------------------+
+void print_greeting(void);
+void led_blinking_task(void);
+void virtual_com_task(void);
+
+/*------------- MAIN -------------*/
+int main(void)
+{
+  board_init();
+  print_greeting();
+
+  //tusb_init();
+
+  while (1)
+  {
+    //tusb_task();
+
+    led_blinking_task();
+    //virtual_com_task();
+  }
+
+  return 0;
+}
+
+void virtual_com_task(void)
+{
+  // connected and there are data available
+  if ( tud_mounted(0) && tud_cdc_available(0) )
+  {
+    uint8_t buf[64];
+
+    // read and echo back
+    uint32_t count = tud_cdc_read(0, buf, sizeof(buf));
+
+    tud_cdc_write(0, buf, count);
+  }
+}
+
+
+//--------------------------------------------------------------------+
+// tinyusb callbacks
+//--------------------------------------------------------------------+
+void tud_mount_cb(uint8_t port)
+{
+
+}
+
+void tud_umount_cb(uint8_t port)
+{
+}
+
+void tud_cdc_rx_cb(uint8_t port)
+{
+}
+
+//--------------------------------------------------------------------+
+// BLINKING TASK
+//--------------------------------------------------------------------+
+void led_blinking_task(void)
+{
+  enum { BLINK_INTEVAL = 1000 };
+
+  static uint32_t led_on_mask = 0;
+  static uint32_t last_blink = 0;
+
+  // not enough time
+  if ( last_blink + BLINK_INTEVAL > hal_tick_get() ) return;
+
+  last_blink += BLINK_INTEVAL;
+
+  board_leds(led_on_mask, 1 - led_on_mask);
+  led_on_mask = 1 - led_on_mask; // toggle
+}
+
+//--------------------------------------------------------------------+
+// HELPER FUNCTION
+//--------------------------------------------------------------------+
+void print_greeting(void)
+{
+  char const * const rtos_name[] =
+  {
+      [TUSB_OS_NONE]      = "None",
+      [TUSB_OS_FREERTOS]  = "FreeRTOS",
+  };
+
+  printf("\n--------------------------------------------------------------------\n");
+  printf("-                     Device Demo (a tinyusb example)\n");
+  printf("- if you find any bugs or get any questions, feel free to file an\n");
+  printf("- issue at https://github.com/hathach/tinyusb\n");
+  printf("--------------------------------------------------------------------\n\n");
+
+  printf("This DEVICE demo is configured to support:");
+  printf("  - RTOS = %s\n", rtos_name[TUSB_CFG_OS]);
+  if (TUSB_CFG_DEVICE_HID_MOUSE    ) puts("  - HID Mouse");
+  if (TUSB_CFG_DEVICE_HID_KEYBOARD ) puts("  - HID Keyboard");
+  if (TUSB_CFG_DEVICE_MSC          ) puts("  - Mass Storage");
+  if (TUSB_CFG_DEVICE_CDC          ) puts("  - Communication Device Class");
+}