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Once you get down below 16k the only other likely rate to try is and it's also unlikley to be 16k. If you do, reduce it by half on each try, ie. Notice I didn't talk about changing the baud rate becuase it's least likely to be the problem with the communication but, sometimes, might need to be changed. Start by exchanging the transmit and receive wires, if that doesn't work, change them back and try again with a different USB port selected in the emulator program until you get a CFE prompt.
#Ic r8500 review serial
Having said that somethimes you will see some garbage on the screen, and occassionally it will continue, but if pressing the enter key a couple of times results in more garbage or nothing at all then, assuming the emulator is correctly setup for a hardwired serial connection, you need to try another combination of the three variables. If there is no dialer or other script issuing output to the port you have chosen you should not see continous garbage on the screen, make "certain" nothing is sending anything to the communication port before continuing. There are only three things that need to be identified here, the USB port that the cable is using on the computer, the speed the CFE communicates at maybe k as above, start with thatand whether transmit and receive need to be exchanged on the router mother board. I see from pictures the pins on the router header are labled R T G V, in that order with router mother board facing you and the header on the edge closest to you.
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Connect only the corresponding transmit, receive and ground of the TTL cable to the corresponding pins on the router mother board. You need to get a CFE prompt within you serial communications program first, whithout that you cannot proceed! Typically the communication parameters are k, 8, n, 1 ie. The first step is to choose a terminal emulation program and understand how it needs to be configured, connect the USB-TTL cable and work out what USB port the router is connected to, which can be a bit difficult. We hope you'll join the conversation by posting to an open topic or starting a new one. This topic has been marked solved and closed to new posts due to inactivity.