Can't Connect to CC3200

Hi Praneet,

     There is an issue where you get these errors at Uniflash when another program is using the same COM Port as your CC3220 Launchpad. So close this program that uses the same COM Port as your CC3200 Launchpad, then power cycle your board. After that try loading any example program using Uniflash. Jumper at SOP 2 must be in place.

      Also, try other USB cable.

- kel

I wasn't sure how to check if there were additional programs using the COM port, and I've been only running Uniflash (not Code Composer Studio), so I don't think anything else is using the COM port. I restarted my computer to make sure, and tried the USB cable I use to charge my phone. It didn't work. And yes, jumper SOP2 is in place.

Edit: Also, on Uniflash, I get error code -3, and it says "reading ACK signal failed". Does that help narrow down the problem?

Edit 2: I did a system restore back to Monday (4 days ago). It was working on Monday. Uniflash still isn't working. I tried Energia as well and it doesn't work either. I can use Energia to load to an MSP430 but not to this CC3200.

So, no one's been responding to this post...is there any way I could send this CC3200 back and get a replacement? It's for a class project, and I really don't want to drop $30 for a microcontroller I'm not planning to use in 2 weeks...

Hi,

Can you please look on the following post http://e2e.ti.com/support/wireless_connectivity/f/968/t/383065.aspx. Try to do what Prajay is asking and let me know what you get. It is possible to replace your board but let's make sure first that it is broken.

Regards,

Shlomi

Unfortunately, I don't have access to a multimeter at the moment, so I can't check the voltage on J12. I'll go out and buy one later today. Although some of the LEDs light up when it's connected to the computer, specifically D1 and D4. So it seems the board is getting power from the computer.

I tried looking up how to connect to the board using SWD mode, as Prajay suggested in his post, but I don't see what settings on Uniflash I need to change. I tried changing the jumper from SOP2 to SOP0, but that didn't change anything on Uniflash. Could you give me more information on how to get Uniflash to try connecting using SWD mode?

Edit: I found a multimeter that's ancient, but works. I'm getting 3.3 volts VCC on the pins and J12 also has 3.3 volts on both pins. I don't think it's a power problem.

Praneet,

Uniflash is using UART interface only. No SWD or JTAG. All that you need to do is connect SOP2 and run Uniflash.

Just to make sure, can you provide the followings:

• device manager screen shot when the device is connected
• capture of the board. I want to verify jumpers
• please show me the 'Console' screen on Uniflash while trying to flash something
• are you able to work in debug mode, i.e. using IAR/CCS?

Thanks,

Shlomi

Here's what the device manager says: 

Here's a picture of the board. I've tried both SOP0 and SOP2 and they don't seem to work.

And finally, here's the Uniflash console screen after attempting a format operation using COM9. I hit the reset button once when prompted, and it shows the same error every time.

No, I can't work in debug mode at all. When attempting to debug in Code Composer Studio, I get the message "Error Connecting to Target" with no additional explanation. I tried this with my project that was working earlier, and I just tried it with the Blinky example from the SDK. Both give the same message.