first submission

2023-02-01 14:19:13 +08:00
parent d534aad004
commit b79c6ac80d
3711 changed files with 745432 additions and 2 deletions
@@ -0,0 +1,87 @@
+/*
+ * Copyright (c) 2006-2019, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2017-07-24     Tanek        the first version
+ * 2018-11-12     Ernest Chen  modify copyright
+ */
+ 
+#include "board.h"
+
+#include <stdint.h>
+#include "drv_usart.h"
+
+#include <rthw.h>
+#include <rtthread.h>
+
+
+// Holds the system core clock, which is the system clock 
+// frequency supplied to the SysTick timer and the processor 
+// core clock.
+extern uint32_t SystemCoreClock;
+
+static uint32_t _SysTick_Config(rt_uint32_t ticks)
+{
+    NVIC_SetPriority(SysTicK_IRQn,0xf0);
+    NVIC_SetPriority(Software_IRQn,0xf0);
+    NVIC_EnableIRQ(SysTicK_IRQn);
+    NVIC_EnableIRQ(Software_IRQn);
+    SysTick->CTLR=0;
+    SysTick->SR=0;
+    SysTick->CNT=0;
+    SysTick->CMP=ticks-1;
+    SysTick->CTLR=0xF;
+    return 0;
+}
+
+#if defined(RT_USING_USER_MAIN) && defined(RT_USING_HEAP)
+#define RT_HEAP_SIZE (1024)
+static uint32_t rt_heap[RT_HEAP_SIZE];     // heap default size: 4K(1024 * 4)
+RT_WEAK void *rt_heap_begin_get(void)
+{
+    return rt_heap;
+}
+
+RT_WEAK void *rt_heap_end_get(void)
+{
+    return rt_heap + RT_HEAP_SIZE;
+}
+#endif
+
+/**
+ * This function will initial your board.
+ */
+void rt_hw_board_init()
+{
+    /* System Tick Configuration */
+    _SysTick_Config(SystemCoreClock / RT_TICK_PER_SECOND);
+    /* Call components board initial (use INIT_BOARD_EXPORT()) */
+#ifdef RT_USING_COMPONENTS_INIT
+    rt_components_board_init();
+#endif
+#if defined(RT_USING_USER_MAIN) && defined(RT_USING_HEAP)
+    rt_system_heap_init(rt_heap_begin_get(), rt_heap_end_get());
+#endif
+
+#ifdef RT_USING_CONSOLE
+    rt_console_set_device(RT_CONSOLE_DEVICE_NAME);
+#endif
+}
+
+
+void SysTick_Handler(void) __attribute__((interrupt()));
+void SysTick_Handler(void)
+{
+    GET_INT_SP();
+    /* enter interrupt */
+    rt_interrupt_enter();
+    SysTick->SR=0;
+    rt_tick_increase();
+    /* leave interrupt */
+    rt_interrupt_leave();
+    FREE_INT_SP();
+
+}