I'm in problems!! please Help Me!!!
I'm interfacing an 8051 from Atmel (AT89s8252) with an USB to serial converter from FTDI (FT232BM).
The FT232BM is Bus Powered and the 8051 is powered through the BUS too.
The interfacing i use is simply through the UART of 8051 directly to th TXD and RXD pins of FT232BM.
Just for testing, I've programmed the 8051 t osend a byte to the port continuously at 9600,8,n,1.
When the 8051 is connected directly via Serial port (COM1) it work properly (monitoring data with Hyperterminal), but if it's connected through the FT232BM, i only see a character received continuously that there is no the one I've programmed to send.
The same happens when i use a testing code that only sends to the por what the 8051 receives, like a Loop. But in this case i only receive garbage
My doubt is that maybe a handshake has to be done when the FT232BM is connected, or something like??? please, if you suspect something, tel me!!!
Lot of Thanks, and sorry about my English, its very poor!!!
Best Regards, thanks!
Nicolas