Add Microchip SAM series MCU support for RT-Thread (#5771)

* Add Microchip SAM series MCU support for RT-Thread Add Microchip SAM series MCU support for RT-Thread, including SAM Cortex-M0+, M4F and M7. * Add bsp directory to ignored check list Add bsp directory to ignored check list, add microchip /samc21/same54/same70 to workflows list * remove STDIO definition and bug fix 1. remove STDIO code from Microchip official BSP. 2. bug fix of SAME70 hpl/hpl_usart.c, samc21&same54 hpl/hpl_sercom.c baudrate update interface. 3. Add RT-Thread standard STDIO implementation on Microchip SAM MCU. * add CAN driver & example and script fix Add CAN driver and example for SAMC21/SAME5x/SAME70 and fix rtconfig.py issue(unused space might result link error) * Add Chinese version README Add Chinese version README for SAMC21/E54/E70
2025-12-27 09:38:24 +00:00 · 2022-04-14 10:54:53 +08:00
parent efdd28bde6
commit 8af8decb62
946 changed files with 689619 additions and 0 deletions
--- a/bsp/microchip/same70/board/board.c
+++ b/bsp/microchip/same70/board/board.c
@@ -0,0 +1,100 @@
+/*
+ * Copyright (c)
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date        Author    Email                    Notes
+ * 2019-07-16  Kevin.Liu kevin.liu.mchp@gmail.com First Release
+ */
+
+#include <string.h>
+
+#include <atmel_start.h>
+#include "peripheral_clk_config.h"
+
+#include <rtthread.h>
+#include "board.h"
+
+#ifdef RT_USING_SERIAL
+extern int rt_hw_uart_init(void);
+#endif
+
+static struct io_descriptor* g_stdio;
+
+void rt_hw_console_output(const char *str)
+{
+    io_write(g_stdio, (uint8_t *)str, strlen(str));
+}
+RTM_EXPORT(rt_hw_console_output);
+
+static inline void hw_board_init_usart(void)
+{
+    usart_sync_get_io_descriptor(&TARGET_IO, &g_stdio);
+    usart_sync_enable(&TARGET_IO);
+}
+
+/**
+ * This is the timer interrupt service routine.
+ *
+ */
+void SysTick_Handler(void)
+{
+    /* enter interrupt */
+    rt_interrupt_enter();
+
+    rt_tick_increase();
+
+    /* leave interrupt */
+    rt_interrupt_leave();
+}
+
+/**
+ * This function will initial SAME70 board.
+ */
+void rt_hw_board_init(void)
+{
+    /* Initializes MCU, drivers and middleware */
+    atmel_start_init();
+
+    /* Disable the watchdog */
+    WDT->WDT_MR = WDT_MR_WDDIS;
+
+    SCB_EnableICache();
+
+    /* enable USART stdout module */
+    hw_board_init_usart();
+
+    /* UART driver initialization is open by default */
+#ifdef RT_USING_SERIAL
+    rt_hw_uart_init();
+#endif
+
+    /* init systick */
+    SysTick_Config(CONF_CPU_FREQUENCY / RT_TICK_PER_SECOND);
+
+    /* set pend exception priority */
+    NVIC_SetPriority(PendSV_IRQn, (1 << __NVIC_PRIO_BITS) - 1);
+
+#ifdef RT_USING_HEAP
+    #if defined(__CC_ARM) || defined(__CLANG_ARM)
+        rt_system_heap_init((void*)&Image$$RW_IRAM1$$ZI$$Limit, (void*)HEAP_END);
+    #elif __ICCARM__
+        rt_system_heap_init((void*)HEAP_BEGIN, (void*)HEAP_END);
+    #else
+        /* init memory system */
+        rt_system_heap_init((void*)&__bss_end, (void*)HEAP_END);
+    #endif
+#endif
+
+    /* Set the shell console output device */
+#if defined(RT_USING_CONSOLE) && defined(RT_USING_DEVICE)
+    rt_console_set_device(RT_CONSOLE_DEVICE_NAME);
+#endif
+
+#ifdef RT_USING_COMPONENTS_INIT
+    rt_components_board_init();
+#endif
+}
+
+/*@}*/