[19260fb] | 1 | /** |
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| 2 | * @file |
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| 3 | * |
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| 4 | * @ingroup lpc176x |
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| 5 | * |
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| 6 | * @brief Startup code. |
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| 7 | */ |
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| 8 | |
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| 9 | /* |
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| 10 | * Copyright (c) 2008-2012 embedded brains GmbH. All rights reserved. |
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| 11 | * |
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| 12 | * embedded brains GmbH |
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| 13 | * Obere Lagerstr. 30 |
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| 14 | * 82178 Puchheim |
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| 15 | * Germany |
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| 16 | * <rtems@embedded-brains.de> |
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| 17 | * |
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| 18 | * The license and distribution terms for this file may be |
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| 19 | * found in the file LICENSE in this distribution or at |
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| 20 | * http://www.rtems.com/license/LICENSE. |
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| 21 | */ |
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| 22 | |
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| 23 | #include <bsp.h> |
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| 24 | #include <bsp/io.h> |
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| 25 | #include <bsp/irq.h> |
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| 26 | #include <bsp/dma.h> |
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| 27 | #include <bsp/bootcard.h> |
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| 28 | #include <bsp/timer.h> |
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| 29 | #include <bsp/irq-generic.h> |
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| 30 | #include <bsp/system-clocks.h> |
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| 31 | #include <bsp/linker-symbols.h> |
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| 32 | #include <bsp/common-types.h> |
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| 33 | #include <bsp/uart-output-char.h> |
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| 34 | |
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| 35 | #ifdef LPC176X_HEAP_EXTEND |
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| 36 | LINKER_SYMBOL( lpc176x_region_heap_0_begin ); |
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| 37 | LINKER_SYMBOL( lpc176x_region_heap_0_size ); |
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| 38 | LINKER_SYMBOL( lpc176x_region_heap_0_end ); |
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| 39 | LINKER_SYMBOL( lpc176x_region_heap_1_begin ); |
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| 40 | LINKER_SYMBOL( lpc176x_region_heap_1_size ); |
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| 41 | LINKER_SYMBOL( lpc176x_region_heap_1_end ); |
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| 42 | extern Heap_Control *RTEMS_Malloc_Heap; |
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| 43 | #endif |
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| 44 | |
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| 45 | void bsp_pretasking_hook( void ) |
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| 46 | { |
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| 47 | #ifdef LPC176X_HEAP_EXTEND |
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| 48 | _Heap_Extend( RTEMS_Malloc_Heap, |
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| 49 | lpc176x_region_heap_0_begin, |
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| 50 | (uintptr_t) lpc176x_region_heap_0_size, |
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| 51 | NULL ); |
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| 52 | _Heap_Extend( RTEMS_Malloc_Heap, |
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| 53 | lpc176x_region_heap_1_begin, |
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| 54 | (uintptr_t) lpc176x_region_heap_1_size, |
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| 55 | NULL ); |
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| 56 | #endif |
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| 57 | } |
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| 58 | |
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| 59 | /** |
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| 60 | * @brief Console initialization |
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| 61 | */ |
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| 62 | static void initialize_console( void ) |
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| 63 | { |
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| 64 | #ifdef LPC176X_CONFIG_CONSOLE |
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| 65 | |
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| 66 | lpc176x_module_enable( LPC176X_MODULE_UART_0, LPC176X_MODULE_PCLK_DEFAULT ); |
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| 67 | |
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| 68 | lpc176x_pin_select( LPC176X_PIN_UART_0_TXD, LPC176X_PIN_FUNCTION_01 ); |
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| 69 | lpc176x_pin_select( LPC176X_PIN_UART_0_RXD, LPC176X_PIN_FUNCTION_01 ); |
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| 70 | |
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| 71 | BSP_CONSOLE_UART_INIT( LPC176X_PCLK / 16 / LPC176X_UART_BAUD ); |
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| 72 | #endif |
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| 73 | } |
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| 74 | |
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| 75 | void bsp_start( void ) |
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| 76 | { |
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| 77 | /* Initialize console */ |
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| 78 | initialize_console(); |
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| 79 | |
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| 80 | /*Initialize timer*/ |
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| 81 | lpc176x_timer_init( LPC176X_TIMER_1 ); |
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| 82 | lpc176x_timer_start( LPC176X_TIMER_1 ); |
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| 83 | |
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| 84 | /* Interrupts */ |
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| 85 | bsp_interrupt_initialize(); |
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| 86 | |
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| 87 | /* DMA */ |
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| 88 | lpc176x_dma_initialize(); |
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| 89 | } |
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