TMS320F280025: CCS V12在使用sprintf进行格式化转换时总是提示浮点精度问题

如下语句：sprintf(buffer, "%3.1f", (float)stVbus.avg1);

编译提示：line 535 (col. 12): advice #3195-D: (Performance) EABI double precision is 64-bits as opposed to 32-bits for COFF. Consider changing doubles to floats for improved performance in FPU32-mode

通过SCI输出或通过LCD显示处理时都会用到sprintf()函数，只要进行格式化浮点处理都会有这样的提示，请问改如何消除，谢谢！