View source for HouseRobot:RobostixConsole

[[Category:HouseRobot|R]]

I successfully got a console by using the "gumstix" port from the Robostix.  Look for the label "gumstix" in the lower just right of center on the robostix board.  Here is a photo:

[[Image:500px-Robostix-Top.jpg|400px]]

Notice the pin label "1".  This isn't on my newer robostix.  I do see it on my old burnt out robostix though.  The gumstix port brings the FFUART pins out in 5v logic-level form.

{| border="1"
! Pin !! Signal 
|- 
| 1  ||  Gnd
|- 
| 2  ||  FFUART TxD (GPIO 39)
|- 
| 3  ||  +5 
|- 
| 4  ||  FFUART RxD (GPIO 34)
|}

Here is the Max233 TTL to RS232 adapter that I used.  Pin 1 is closest to the hole in the bottom left of the folloing photo:

[[Image:AD233asm1.jpg]]

The mapping to my Max233 Adapter is as follows:
{| border="1"
! Signal !! Robostix Pin !! Max233 Pin !! Max233 Label 
|- 
| Gnd                  || 1  || 3 || -
|- 
| FFUART TxD (GPIO 39) || 2  || 1 || Tx 
|- 
| +5                   || 3  || 4 || + 5v
|- 
| FFUART RxD (GPIO 34) || 4  || 2 || Rx 
|}

I built the cable out of the two ends of a floppy power cable and wired it as described in the above table.

[[Image:FloppyPowerCable.jpg]]

'''''*NOTE*: I must be careful when plugging the cable in as it does make a difference.  I'm going to label each end of the cable.  One side for the gumstix port and the other for the TTL adapter.'''''

I was able to get a console by plugging a cable from the Max233 Adapter into my Belkin RS232 to USB adapter (Model F5U409).  I'm using a RS232 to USB adapter since my laptop doesn't have a serial port.  I used RealTerm for my terminal program and had my RS232->USB adapter on COM 1.  I set the following settings:

{| border="1"
! Baud Rate !! Parity !! Data Bits !! Stop Bits !! Hardware Flow Control
|- 
| 115200    || None   || 8         || 1         || None
|}

Here is the console:

[[Image:RobostixGumstixConsole.jpg]]