set MPIE and MPP

Signed-off-by: liangkangnan <liangkangnan@163.com>
2020-04-25 17:05:48 +08:00 · 2020-04-25 17:05:48 +08:00 · f110a2c0e0
parent 6cf86e0286
commit f110a2c0e0
1 changed files with 4 additions and 0 deletions
--- a/tests/example/init.c
+++ b/tests/example/init.c
@ -16,5 +16,9 @@ void trap_handler(uint32_t mcause)

 void _init()
 {
+    // 设置中断入口函数
    write_csr(mtvec, &trap_entry);
+    // 使能CPU全局中断
+    // MIE = 1, MPIE = 1, MPP = 11
+    write_csr(mstatus, 0x1888);
 }