5 IAR 开发华大HC32F4A0 编译 missing and no known rule to make it . 提示需要backtrace.o

RT-Thread Studio 串口 Env LWIP SPI AT Bootloader Hardfault CAN总线 FinSH ART-Pi DMA USB 文件系统 RT-Thread SCons RT-Thread Nano 线程 MQTT STM32 FAL RTC rt-smart I2C_IIC cubemx UART ESP8266 WIZnet_W5500 ota在线升级 BSP PWM flash packages_软件包 freemodbus 潘多拉开发板_Pandora GD32 ADC 定时器 编译报错 flashDB keil_MDK socket 中断 rt_mq_消息队列_msg_queue Debug ulog SFUD msh C++_cpp at_device