Dear all , I use W77E58 and external UART 16C550. I configure baudrate to 19200 with 1843200 Xtal in address 0x6000. all operation in W77E58 is ok. But if i change to AT89C52,i operator in debug mode how to ?
Dear all , I use W77E58 and external UART 16C550. I configure baudrate to 19200 with 1843200 Xtal in address 0x6000. all operation in W77E58 is ok. But if i change to AT89C52,i cannot operator in debug mode how to ?
Check if the device is correctly accessing off-chip XDATA memory. This is essential for memory mapped peripheral devices. Reinhard