1 files changed, 96 insertions, 0 deletions
diff --git a/bsp/tkm32F499/drivers/board.c b/bsp/tkm32F499/drivers/board.c
new file mode 100644
index 0000000000..6e5eb5791d
--- /dev/null
+++ b/bsp/tkm32F499/drivers/board.c
@@ -0,0 +1,96 @@
+/*
+ * Copyright (c) 2017-2019, MindMotion AE Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2021-10-02     spaceman           first version
+ */
+#include <rtthread.h>
+#include <rthw.h>
+#include <board.h>
+#include <drv_uart.h>
+// extern uint32_t SystemCoreClock;
+// extern void SystemInit(void);
+
+#ifdef RT_USING_FINSH
+#include <finsh.h>
+static void reboot(uint8_t argc, char **argv)
+{
+    rt_hw_cpu_reset();
+}
+MSH_CMD_EXPORT(reboot, Reboot System);
+#endif /* RT_USING_FINSH */
+
+static void bsp_clock_config(void)
+{
+    RemapVtorTable();
+    SystemClk_HSEInit(RCC_PLLMul_20);//启动PLL时钟，12MHz*20=240MHz
+    NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);//2：2，全局性函数，仅需设置一次
+
+    uint32_t sysclk = 0;
+    getSystemClock(&sysclk);
+
+    SysTick_Config(sysclk / RT_TICK_PER_SECOND);
+    SysTick->CTRL |= 0x00000004UL;
+}
+
+void SysTick_Handler(void)
+{
+    /* enter interrupt */
+    rt_interrupt_enter();
+
+    rt_tick_increase();
+
+    /* leave interrupt */
+    rt_interrupt_leave();
+}
+
+void rt_hw_us_delay(rt_uint32_t us)
+{
+    rt_uint32_t ticks;
+    rt_uint32_t told, tnow, tcnt = 0;
+    rt_uint32_t reload = SysTick->LOAD;
+
+    ticks = us * reload / (1000000 / RT_TICK_PER_SECOND);
+    told = SysTick->VAL;
+    while (1)
+    {
+        tnow = SysTick->VAL;
+        if (tnow != told)
+        {
+            if (tnow < told)
+            {
+                tcnt += told - tnow;
+            }
+            else
+            {
+                tcnt += reload - tnow + told;
+            }
+            told = tnow;
+            if (tcnt >= ticks)
+            {
+                break;
+            }
+        }
+    }
+}
+
+void rt_hw_board_init()
+{
+    bsp_clock_config();
+#if defined(RT_USING_HEAP)
+    rt_system_heap_init((void *)HEAP_BEGIN, (void *)HEAP_END);
+#endif
+    // volatile uint16_t i=0;
+    // rt_hw_uart_init();
+    // i = UINT16_MAX;
+    // while(i--);     //wait for a while after uart initiated.
+#ifdef RT_USING_COMPONENTS_INIT
+    rt_components_board_init();
+#endif
+#ifdef RT_USING_CONSOLE
+    rt_console_set_device(RT_CONSOLE_DEVICE_NAME);
+#endif
+}