Schematic screen shot.

My screen shot disappeared after I pressed the "post" button.

Hello Benjamin,

I had a two day redirection on other tasks but I am back on the effort to communicate with the CC3220MOD on our PCAssembly.

Thanks for pointing me in the UniFlash direction and explaining some what the expected procedure.. 

I am also working with SWRU469B–March 2017–Revised March 2018 and I find the instructions inadequate.  About this document, I hope you can get it improved.

Section 5.1 Create a new project really needs to show exact file examples and screen shots for a path to success. The instructions, "Users should fill out the relevant fields," is very inadequate.

I am going to try some BIN files I found in folders such as: C:\ti\simplelink_cc32xx_sdk_2_20_00_10\examples\rtos\CC3220SF_LAUNCHXL\demos\out_of_box\uniflash\cc3220sf_out_of_box_tirtos

From the User Interface on the UniFlash, I was expecting to find an MCU Image file and Service Pack  in the examples which are not at all obvious.

Perhaps this is the "Service Pack" file: C:\ti\simplelink_cc32xx_sdk_2_20_00_10\examples\rtos\CC3220SF_LAUNCHXL\demos\out_of_box\uniflash\cc3220sf_out_of_box_tirtos\sl_sp\sp_3.8.0.3_2.0.0.0_2.2.0.6.bin

But I do not see an obvious MCU file  I am about to try:

C:\ti\simplelink_cc32xx_sdk_2_20_00_10\examples\rtos\CC3220SF_LAUNCHXL\demos\out_of_box\uniflash\cc3220sf_out_of_box_tirtos\sl_css\certcatalogPlayGround20160911.lst.signed_3220.bin

I will post some images.

Screen shot of UniFlash GUI Development Mode Smiple View.

Regarding "and send data over the UART (module pins 46/47, aka GPIO1 and GPIO2)"
This is not clear at all.
I have a CC3220MODA Launchpad, for which (by the way) I cannot find a schematic.
I am using and experimenting with the XDS110 Out connection on the LaunchPad to the JTAG interface on both the Launchpad itself and to our PCAssembly.

For our PCAssembly, Is the expected connection from the TXRX on the LaunchPad to the pins 46 and 47 on our target?

The TXRX connections on the Launchpad are quite confusing because there are three pins involved for TX and another three for RX. 
On the Launchpad, there is an unpopulated header near pins 46 and 47 labeled J11. Are these connections to the UART on the Launchpad device?

Got the schematic in the design files. Thanks. (Looking forward to exploring the accelerometer once I can program these things.)
Now I see how the TX and RX are connected to the programmer side.

This morning I have experimented with the Launchpad and the UniFlash thinking I was programing either the Out of the Box or the PlayGround (??? certcatalogPlayGround20160911.lst.signed_3220.bin ???) I must have written something to the Launchpad since I can no longer access the JTAG interface with Energia. I need a screen shot and or exact file names and method to put the Out of Box (and other) software back into the Launchpad.


You might have figured out from our schematic that we have no connection to the UART pins 46 and 47. As best I can tell, we implemented our PCAssembly biased on the figure 1-20 of the SWRU512.pdf which does not provide for the UART connection you have told me we need. 

Hello Benjamin,

While I am no where near being able to make a UniFlash image from scratch I have made some progress.

I have verified that the nRest line is going high after power cycle.

I have used the Out of Box example software and programed the Launchpad in both Production Mode and Development mode.

I saved a file I called: cc3220sf_out_of_box_tirtos_Programming_ProductionMode.sli and a file I called: cc3220sf_out_of_box_tirtos_Programming_DevelopmentMode.sli where the only difference was the selection of Production Mode or Development mode in the UniFlash GUI.

When I loaded the target with the Production Mode file, after reboot I could not connect to target with Energia to upload a sketch.

I then loaded the target with the Development Mode file and, after reboot I could upload with Energia.

I am still not able to load to our customer PCAssembly. Our technician scraped away the edge of the CC3220MOD and soldered two tiny wires to pins 46 and 47 and I have connected them to the UART connections on Launchpad so that the TX out of the LaunchPad went to the RX of the target and vicer versa so that output goest to input.

When I try to program our PCAssembly the UART pins begin both high and for a time while the UniFlash reports that it is prepairing the SLI file the TX from the PCAssembly goes low then when the UniFlash reports Opperation Failed the TX from the PCAssembly goes high again.

It is not clear to me what goes on with the MAC address that I had to give the GUI when making the dot SLI file for the device on the Launchpad and what or how I am supposed to something with the MAC on the target PCAssembly.

Hoping for an explanation of the work flow for a never before programed part.

Thanks,