I have 24C64 connected to PIC18F45K80 and want to update it's content from PC (about 2KB of font and string data). So to avoid unsoldering, connecting to programmator and then soldering back each time I need EEPROM update, I thought, I maybe use serial connection for that.
I assembled the test circuit using HT42B534 USB<>Serial bridge and it works fine when I send strings via TeraTerm or RealTerm, but when I send some small file (even 4 byte) via the COPY command, I end up receiving garbage at PIC side.