仓库迁移

2023-06-10 11:52:00 +08:00
parent e4616bfae5
commit 077c27f2bb
499 changed files with 199745 additions and 92 deletions
--- a/source/rt_thread/libcpu/risc-v/rv32m1/interrupt.c
+++ b/source/rt_thread/libcpu/risc-v/rv32m1/interrupt.c
@@ -0,0 +1,33 @@
+/*
+ * Copyright (c) 2006-2021, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2018/10/01     Bernard      The first version
+ */
+
+#include <rthw.h>
+
+#include <board.h>
+#include <RV32M1_ri5cy.h>
+
+typedef void (*irq_handler_t)(void);
+extern const irq_handler_t isrTable[];
+
+void SystemIrqHandler(uint32_t mcause)
+{
+    uint32_t intNum;
+
+    if (mcause & 0x80000000) /* For external interrupt. */
+    {
+        intNum = mcause & 0x1FUL;
+
+        /* Clear pending flag in EVENT unit .*/
+        EVENT_UNIT->INTPTPENDCLEAR = (1U << intNum);
+
+        /* Now call the real irq handler for intNum */
+        isrTable[intNum]();
+    }
+}