source: rtems/c/src/lib/libbsp/arm/lpc176x/startup/bspstart.c @ 1c0663b

4.115
Last change on this file since 1c0663b was d4edbdbc, checked in by Sebastian Huber <sebastian.huber@…>, on Mar 20, 2015 at 1:09:26 PM

Replace www.rtems.com with www.rtems.org

  • Property mode set to 100644
File size: 2.0 KB
Line 
1/**
2 * @file
3 *
4 * @ingroup lpc176x
5 *
6 * @brief Startup code.
7 */
8
9/*
10 * Copyright (c) 2008-2012 embedded brains GmbH.  All rights reserved.
11 *
12 *  embedded brains GmbH
13 *  Obere Lagerstr. 30
14 *  82178 Puchheim
15 *  Germany
16 *  <rtems@embedded-brains.de>
17 *
18 * The license and distribution terms for this file may be
19 * found in the file LICENSE in this distribution or at
20 * http://www.rtems.org/license/LICENSE.
21 */
22
23#include <bsp.h>
24#include <bsp/io.h>
25#include <bsp/irq.h>
26#include <bsp/dma.h>
27#include <bsp/bootcard.h>
28#include <bsp/timer.h>
29#include <bsp/irq-generic.h>
30#include <bsp/system-clocks.h>
31#include <bsp/linker-symbols.h>
32#include <bsp/common-types.h>
33#include <bsp/uart-output-char.h>
34
35#ifdef LPC176X_HEAP_EXTEND
36LINKER_SYMBOL( lpc176x_region_heap_0_begin );
37LINKER_SYMBOL( lpc176x_region_heap_0_size );
38LINKER_SYMBOL( lpc176x_region_heap_0_end );
39LINKER_SYMBOL( lpc176x_region_heap_1_begin );
40LINKER_SYMBOL( lpc176x_region_heap_1_size );
41LINKER_SYMBOL( lpc176x_region_heap_1_end );
42extern Heap_Control *RTEMS_Malloc_Heap;
43#endif
44
45void bsp_pretasking_hook( void )
46{
47#ifdef LPC176X_HEAP_EXTEND
48  _Heap_Extend( RTEMS_Malloc_Heap,
49    lpc176x_region_heap_0_begin,
50    (uintptr_t) lpc176x_region_heap_0_size,
51    NULL );
52  _Heap_Extend( RTEMS_Malloc_Heap,
53    lpc176x_region_heap_1_begin,
54    (uintptr_t) lpc176x_region_heap_1_size,
55    NULL );
56#endif
57}
58
59/**
60 * @brief Console initialization
61 */
62static void initialize_console( void )
63{
64#ifdef LPC176X_CONFIG_CONSOLE
65
66  lpc176x_module_enable( LPC176X_MODULE_UART_0, LPC176X_MODULE_PCLK_DEFAULT );
67
68  lpc176x_pin_select( LPC176X_PIN_UART_0_TXD, LPC176X_PIN_FUNCTION_01 );
69  lpc176x_pin_select( LPC176X_PIN_UART_0_RXD, LPC176X_PIN_FUNCTION_01 );
70
71  BSP_CONSOLE_UART_INIT( LPC176X_PCLK / 16 / LPC176X_UART_BAUD );
72#endif
73}
74
75void bsp_start( void )
76{
77  /* Initialize console */
78  initialize_console();
79
80  /*Initialize timer*/
81  lpc176x_timer_init( LPC176X_TIMER_1 );
82  lpc176x_timer_start( LPC176X_TIMER_1 );
83
84  /* Interrupts */
85  bsp_interrupt_initialize();
86
87  /* DMA */
88  lpc176x_dma_initialize();
89}
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