view binary in hyperterminal
Yes. You initially told, you want to send a binary file through Hyperterminal. If your uP firmware expects the file as unencoded binary, than you have to use "send text file". The problem is of course to identify exactly the start and end of file, and to detect transmission errors. Thus binary files are often send encoded (e.g. as Intel hex), or using a protocol as X/Y/ZMODEM, that adds a transport and error detection layer to the data transmission.