keil对Arm单片机编程（stm型号），实现程序中自动烧写音频（wave格式）到SPI Flash中，读取SPI Flash中的音频文件，并在SPEAKER输出-keil on the Arm chip programming (stm model), to achieve the program is automatically programmed audio (wave format) to the SPI Flash, SPI Flash read the audio file, an