Stair56E UART project

2026-08-05 19:07:52 +08:00
parent 7ca1af130d
commit f5654b70cc
2500 changed files with 619007 additions and 282610 deletions
@@ -0,0 +1,22 @@
+#include "xinc_m0.h"
+
+/**
+ * Initialize the system
+ *
+ * @param  none
+ * @return none
+ *
+ * @brief  Setup the microcontroller system
+ *
+ */
+extern void retarget_init(void);
+void SystemInit(void)
+{
+
+    /*bit2:1  select clock source([00-OSC32M],[01-bbpll direct output],[10-bbpll div output],[11-rc16M])*/
+    *((volatile unsigned *)(0x40000000 + 0x130)) &= (~0x06); //*((volatile unsigned *)(0x40000000+ 0x130)) |=0x06;
+                                                             /*release BootDone --release pin bootctl1(gpio35)*/
+    *((volatile unsigned *)(0x40000000 + 0x1B0)) |= 0x10000000;
+
+    retarget_init();
+}