Here is what I want to do. I have my 8051 connected to the RS232 and a 256K x 8 flash memory. I want to be able to transfer a file of 256kbyte from RS232 to 8051 and then write to the flash memory continously. I am thinking of using the z-modem protocol to do the file transfer, but I am not sure how to set it up in with the 8051. If there is a better way to do this, please let me know...thanks