i've just got my MCBx51 board, and try (seriuosly unsuccessful) to download my source to the 89C51RD2 (both with µVision2 nor with FLIP) i never get a connection via RS232. where is the problem I tryed several combinations of DIP switch settings and Int/Ext RS232 UART. Also in combination wit AppNote 156 - no result !"! Is ther anyone to give me the right setup of MCBx51 and maybe some SW setups.
you can try debugger. example:Blinky.c Chip :T89C51RD2, NMI=ON,INT1=ON,PAGE/NONP=NONP /EA=0 1. internal UART:Uart_INT=off,ext_Uar=off,SRC/D2=off, PAGE=on,Monitor=on,51/151=on,MP1=on,MP0=on, LED=on,A17=off. 38400 Baud