NucleoF411RET6.7z

NucleoF411RET6的TFTLCD屏和SD卡驱动 if(f_mount(&my_fs,"0:",1) == FR_OK) { printf("File mount OK!\r\n"); file_result=f_open(&my_file,"MyData.txt",FA_OPEN_EXISTING | FA_READ); if(file_result==0) { printf("File open success!\r\n"); f_read(&my_file,read_string,20,&br); printf((char*)read_string); f_close(&my_file); } else { printf("File open failed!\r\n"); printf("Error number is %lu\r\n",(long unsigned int)&file_result); } } else { printf("File mount Error!\r\n"); } printf("%f\r\n",(float)arm_cos_f32((float)0)); printf("%f\r\n",(float)arm_cos_f32((float)0.5*PI)); printf("%f\r\n",(float)arm_cos_f32((float)0.75*PI));