work with lpc11u37 (lpc11uxx) on kevin's board

1 files changed, 58 insertions, 0 deletions

diff --git a/tinyusb/hal/hal_lpc11uxx.c b/tinyusb/hal/hal_lpc11uxx.c
new file mode 100644
index 000000000..e4f5f9840
--- /dev/null
+++ b/tinyusb/hal/hal_lpc11uxx.c
@@ -0,0 +1,58 @@
+/*
+ * hal_lpc11uxx.c
+ *
+ *  Created on: Dec 7, 2012
+ *      Author: hathach
+ */
+
+/*
+ * Software License Agreement (BSD License)
+ * Copyright (c) 2012, hathach (tinyusb.net)
+ * 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. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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 tiny usb stack.
+ */
+
+#include "common/common.h"
+
+#if MCU == MCU_LPC11UXX
+
+TUSB_Error_t hal_init()
+{
+	// TODO remove magic number
+  /* Enable AHB clock to the USB block and USB RAM. */
+  LPC_SYSCON->SYSAHBCLKCTRL |= ((0x1<<14) | (0x1<<27));
+
+  /* Pull-down is needed, or internally, VBUS will be floating. This is to
+  address the wrong status in VBUSDebouncing bit in CmdStatus register.  */
+  LPC_IOCON->PIO0_3   &= ~0x1F;
+  LPC_IOCON->PIO0_3   |= (0x01<<0);            /* Secondary function VBUS */
+  LPC_IOCON->PIO0_6   &= ~0x07;
+  LPC_IOCON->PIO0_6   |= (0x01<<0);            /* Secondary function SoftConn */
+
+  return tERROR_NONE;
+}
+
+#endif