************************UPDATE 30-Jan-2014************************ Problem solved, see my post below. Problem was pinouts of com port and the header i bought. You may experience same problems when buying headers for Asus Gigabyte ATX Motherboards Here is the post ************************ORIGINAL POST************************ Hello i have an atmega32a and i am having some issues communicating (sending data) to the serial port of my pc. Before you send me reading codes and tutorials. I have bought this which is a ftdi chip usb to serial converter. I also download the ftdi virtual com port drivers. I started communicating with the port properly using realterm emulator and i wrote a program in.net that makes the avr an oscilloscpoe. Gigabyte Mini-itx Baytrail Motherboard Ga-j1900n-d3v Built In Celeron J1900,2*so-dimm,4*usb3.0,Dvii/vga,Ps/2,S/pdif,2*lan,2*com, Find Complete Details about Gigabyte. Gigabyte mobo packs mSATA for use with an on-board SSD. You can see it mounted in the dead center of the Gigabyte motherboard above. Gigabyte left the parallel and serial ports on the back. All fine until now I got a project in which i need to connect avr and another device using a serial port (not a virtual one). So i started by buying this which i need because my motherboard did not have a serial port output. Hitler telugu full movie free download. Just to note my motherboard is the ASUSP5Q3 Then i bought this which is a serial port shifter and i just plugged the jumper wires to their proper positions. Tried to communicate with the serial port and still cannot read anything. I configured everything in realterm (port reader), device manager (windows) etc to be the same i am just getting (input = 'green') in Ring pin of the serial port (pin 9). Tried lower Baud Rates, tried Higher Baud Rates still nothing. Sometimes with unmatching baud rates i may get one or more same values that are wrong (my sample program starts and sends values from 0 to 100). The same program using the ftdi usb to serial chip runs just fine and im getting values on the emulator. When i try to use the actual serial port i cant get it to work in any way. So in concluding i think it may be relevant to other type of configuration. Something with my motherboard maybe or dunno. Cost to install tires. ![]() Here is an image displaying what happens with ftdi chip and a usb and what happens with actual serial port on pc Any help would be precious. Thanks in advance. Kartman wrote: The first thing to try is a loopback. On the db9 connector connect pins 2&3. Your twrminal program should echo the characters typed. Remove the loopback, the echo should stop. Then introduce the level shifter. Connect tx and rx. Repeat the test. Have the avr output a known character at regular intervals. Connect the level shifter. At this point you have proven the transmit path 100% and the receive path to the level shifter. First of all it is plugged correctly because there is only one way to plug it the other doesnt fit plus i checked the missing pin not to match any existing pin. Then i tried the loopback and it failed. There was one time i got what i sent from the Realterm but it seems it was accidentally because ive been trying so many times to loopback and i dont get anything. Radiohead ok computer full album free download. It just sends data, it wont receive. Tried different baud rates. Does not seem to work.
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