【主线待合】增加STM32用于在hard_fault后打印信息的函数

bspMCU/bsp_pin.c

@@ -47,3 +47,28 @@ void delay_us(int nus)
 	};
 #endif
 }
+
+void hard_fault_handler_c(unsigned int *hardfault_args)
+{
+    unsigned int stacked_r0 = hardfault_args[0];
+    unsigned int stacked_r1 = hardfault_args[1];
+    unsigned int stacked_r2 = hardfault_args[2];
+    unsigned int stacked_r3 = hardfault_args[3];
+    unsigned int stacked_r12 = hardfault_args[4];
+    unsigned int stacked_lr = hardfault_args[5];  // 链接寄存器
+    unsigned int stacked_pc = hardfault_args[6];  // 程序计数器
+    unsigned int stacked_psr = hardfault_args[7]; // 状态寄存器
+
+    // 打印寄存器现场
+    log_a("====== HardFault Detected ======\r\n");
+    log_a("R0 = 0x%08X, R1 = 0x%08X\r\n", stacked_r0, stacked_r1);
+    log_a("R2 = 0x%08X, R3 = 0x%08X\r\n", stacked_r2, stacked_r3);
+    log_a("R12= 0x%08X, LR = 0x%08X\r\n", stacked_r12, stacked_lr);
+    log_a("PC = 0x%08X, PSR= 0x%08X\r\n", stacked_pc, stacked_psr);
+
+    // 打印故障状态寄存器
+    log_a("HFSR = 0x%08X\r\n", SCB->HFSR);
+    log_a("CFSR = 0x%08X\r\n", SCB->CFSR);
+    log_a("BFAR = 0x%08X\r\n", SCB->BFAR);
+    log_a("MMFAR= 0x%08X\r\n", SCB->MMFAR);
+}