init

src/main.c

@@ -0,0 +1,40 @@
+/**
+ * LED Blink - MSPM0G3507
+ * LED on PB9, active low (低电平点亮)
+ */
+
+#include "ti_msp_dl_config.h"
+
+/**
+ * @brief 毫秒级延时函数 (基于 CPU 忙等)
+ * @param ms  要延时的毫秒数
+ *
+ * 假设 CPUCLK_FREQ = 32 MHz, 1 ms ≈ 32000 cycles
+ */
+void delay(uint32_t ms)
+{
+    uint32_t cycles_per_ms = CPUCLK_FREQ / 1000;
+    while (ms--) {
+        delay_cycles(cycles_per_ms);
+    }
+}
+
+int cycle = 0;
+
+int main(void)
+{
+    /* Initialize GPIO and clocks via SysConfig-generated code */
+    SYSCFG_DL_init();
+
+ 
+    while (1) {
+        /* LED ON: PB9 = LOW (active low) */
+        DL_GPIO_clearPins(GPIO_LED_PORT, GPIO_LED_LED_PIN);
+        delay(100);
+
+        /* LED OFF: PB9 = HIGH */
+        DL_GPIO_setPins(GPIO_LED_PORT, GPIO_LED_LED_PIN);
+        delay(100);
+        cycle++;
+    }
+}