FDC 1004 GUI Source Code not available / Using linux to connect to FDC1004 EVM

Benjamin Herwig

Other Parts Discussed in Thread: FDC1004, FDC1004EVM

Dear board,

the source code for the FDC1004 EVM GUI is not available (TI excuses for no being able to find the site behind the link). The broken link is in the list on the FDC1004EVM-site.

Can someone please fix that or give me another link? Thank you!

Additionally, I want to read the EVM data from within a linux terminal. The device gets registered as /dev/ttyACM0, but then I have no idea on how to proceed. Shall I send some commands to the MSP 430? Which ones? Has anyone of you experience with that? Any hint highly appreciated!

Best regards from Germany

Benjamin

over 8 years ago

0 Benjamin Herwig over 8 years ago

Prodigy 60 points

Just an update: I connected to /dev/ttyACM0 with a terminal programm. Seems like the MSP430 is somehow "transparent". When I send 1 (0x01) to the device, data is returned. Like in the documentation (somewhere) the MSP 430 seems to handle the complete configuration (and also the managment of I2C stuff and so). I will report when I know more.

0 Yibo Yu over 8 years ago in reply to Benjamin Herwig

TI__Expert 8050 points

Hi Benjamin,

Please download and install our new web app GUI from the link below. This GUI works with all of our capacitive and inductive sensing products.
www.ti.com/.../snoc028

I'm getting more information from our GUI expert regarding reading data on Linux.

Regards,
Yibo

0 Benjamin Herwig over 8 years ago in reply to Yibo Yu

Prodigy 60 points

Hi Yibo,

Thank you for your reply! I will stay tuned and wait. ATM I can read all 4 channels via terminal (at least, data gets returned, but sometimes I see the hex-equivalent of "err,err"). This has something to do with not setting up the measurement properly, so I will stay tuned and wait for the expert's answer.

Thank you again and best greetings

Benjamin

0 Benjamin Herwig over 8 years ago in reply to Yibo Yu

Prodigy 60 points

Sorry for writing so many posts. :-( The "err,err" stuff looks like this: 6572722c6572722c6572722c6572720d0a
(0d0a are CR and LF)
This happens only if I do not connect via serial terminal, but with my own python code (via pyserial). I will keep you updated, but ATM there is also some error at my side.

0 Yibo Yu over 8 years ago in reply to Benjamin Herwig

TI__Expert 8050 points

Hi Benjamin,

Below is the response I got. Please take a look at this file and it should give you more information on packet construction.

"After the install the new GUI I recommend they look at the "C:\ti\Sensing Solutions EVM GUI-1.8.8\PC GUI\node_modules\SspEvmNodeJS\SSP_Protocol_Int0v4.js" file which shows how to create the serial port packets and decode them from the FDC1004EVM."

Regards,
Yibo

0 Benjamin Herwig over 8 years ago in reply to Yibo Yu

Prodigy 60 points

Hi Yibo,

Thank you a lot (and thanks a lot the expert, too)!

I will work on this and maybe, if successful, give a script in my next post. :-)

Best greetings from Germany

Benjamin

0 Yibo Yu over 8 years ago in reply to Benjamin Herwig

TI__Expert 8050 points

Hi Benjamin,
You are most welcome! Good luck for your project and I look forward to reading your script.
Best wishes,Yibo

0 Benjamin Herwig over 8 years ago in reply to Benjamin Herwig

Prodigy 60 points

Just to correct myself, I did _not_ send 1_10 = 0x01 to the EVM, but '1', the ASCII character, which is in fact 49_10 == 0x31 == 00110001_2 ...

More next year. :-)

Sensors

Sensors forum

FDC 1004 GUI Source Code not available / Using linux to connect to FDC1004 EVM