Unable to flash the CC3220MODASF launchpad

Hi Vincent,

I have sent the picture of launchpad, also now I have reinstall the the code composer studio this resolves my energy trace issue as shown in post : https://e2e.ti.com/support/development_tools/code_composer_studio/f/81/t/534520?Unfamiliar-CCS-error-message

But now when I debug the program it is showing me the error: Error connecting to the target:

(Error -241 @ 0x0)

I have tried to connect the launchpad to Uniflash Tool in development mode but it is giving me an error: Operation failed: Timeout reading data and

when I debug the program it gives me an error :

Error connecting to the target:
(Error -241 @ 0x0)
A router subpath could not be accessed.
A security error has probably occurred.
Make sure your device is unlocked.
(Emulation package 7.0.188.0)

Also I have another cc3200sf launchpad when I connect this to Uniflash tool it works fine.

Hi Vincent,

Sorry for late reply, I have checked the jumper settings. They all are as per fig.

Hi Vincent,

Sorry for late reply

I have checked the jumpers all are as per fig.

Is there any other way to reset the device or for troubleshooting, please suggest me it will be great help.

Hi Vincent,

I have checked the ports in device manager, also there is no other device is connected so port is not used by other device.

I have attached the screenshot of device manager

But it is not connecting through the uniflash. Same timeout error is pop-up.

Hi Vincent,

Yes, board is working properly earlier, I have flash it before. But now when I connect it in uniflash to flash a program it is giving me a timeout error.

Also with same configuration I am able to flash the other board.

Hi Vincent,

Thanks for asking, I have tried all the possibilities of troubleshooting but it does not resolve my issue.

Can you please suggest me what should I do now ?

Hi,

Please remove jumper VBAT jumper (J18) and measure voltage. In case of that you have oscilloscope available, please measure ripple at J18.

5.11V at J22 not look a problem but 3.99V at J21 looks as problem with Step-Down Converter (TPS62162) at LP. How do you use board? What external circuits do you connect to LP? How do you power LP?

Jan

Hi Jan,

I am having USB connection issue with both the launchpads
After removing the VBAT jumper I get 2.626 V at the 3.3V header. To power up this board I have use the 5V SMPS across J22 - 5V jumper.

But on the other board I am getting 3.3V with VBAT jumper and 0V when VBAT jumper is removed.

Also I am unable to debug or flash either of the boards.
I am getting error : Error connecting to the target: (Error -1170 @ 0x0) Unable to access the DAP, whenever I tried to debug it.

Can I bring it to nearby Texas center located (at Pune) as I am unable to figure out reason behind this connection issue.

Please help me out to resolve this issue.

Hi,

Please measure voltage at top PIN (near to XDS-110) in case of disconnected jumper J18.

You want to say that you have connected external 5V via J22, connected LP to computer via USB and had closed jumper J19 (5V) at same moment? In this moment you have connected external 5V from J22 to your USB port at computer. And this is really not a good idea.

Jan

Hi Jan,

I am using CC3220MODASF launchpad, It has J21 for 3.3V and J22 for 5V.

I have connected the external supply to J22, after flashing the launchpad and removed the USB cable so it is disconnected from the computer.

Hi Jan and Vincent,

for the launchpad I am using J18 is the VBAT jumper which is giving a voltage of 2.4V,

Also I have  updated to firmware of the CC3220MODASF launchpad. After resetting the board and updating the firmware file one of the board is now connecting to the debug and also now I can flash it.

Firmware is updated using "xdsdfu Tool" which is at location : ti\ccsv8\ccs_base\common\uscif\xds110

But the launchpad which is working after resetting the firmware is giving a 3.9 V at the 3.3V connector, is it safe to use as it is or it ma damage other circuit on the board ?

Also about the other board I am still unable to flash it. I couldn't get it if both launchpad shows same error but after resetting board and updating firmware why this launchpad is not working.

Here is the assembly file and launchpad picture.

Hi,

3.9V at 3.3V connector is bad really. Is more than allowed maximum for CC3220SF chip (3.8V) and pretty close to maximum of TM4129 chip used as XDS110 debugger (4.0V). I am not able say that chips are damaged already.

Still did not give me requested voltage. I need to know output voltage from dc-dc (TPS62162) without connected CC3220. I will try better describe what I need. Follow steps:

1. Disconnect jumpers J18, J16
2. Disconnect all your boards from LP
3. Connect LP only by USB
4. Measure voltage at point described below:

If I should speculate what you do wrong. I think you have something wrong at circuits that you connecting to LaunchPad. For example you are connecting 5V directly to inputs of CC3220, etc. Can you provide more information what external and how you connect to LP board?

Jan

Hi Jan,
I have measure the voltage as you told, I got 5.11V at J19 and 4.25V volt at J18.
 and previously to power up this LP Board, after flashing the LP I have connected 5 V SMPS to J22 5V jumper and removed the USB cable as given in the hardware user guide of the SimplelinkCC3220. I have attach the screenshot.

Now when I debug it with example which are using the peripherals like timerled or gpiointerrupt it works well but when I debug MQTT or Out of Box example it gives an error :

Cortex_M4_0: GEL Output:
Memory Map Initialization Complete
Cortex_M4_0: GEL Output:
Target Reset
Cortex_M4_0: JTAG Communication Error: (Error -261 @ 0x0) Invalid response was received from the XDS110. (Emulation package 8.0.27.9)
Cortex_M4_0: Failed to remove the debug state from the target before disconnecting.  There may still be breakpoint op-codes embedded in program memory.  It is recommended that you reset the emulator before you connect and reload your program before you continue debugging

after placing the breakpoints in the program I observed that at function sl_Start it is giving an JTAG communication error

on line    -       retc = sl_Start(0, 0, 0); 

Hi,

That is even worse. It looks that you have somehow damaged dc-dc converter TPS62162 or chips connected to VCC_LDO_3V3 (probably only TM4C129) rail or VCC_LDO_3V3 rail connected to 5V.
- Are you able look to voltage at J18 by the oscilloscope?
- Are you able check if TPS62162 chip is not hot?
- Are you able measure current flowing via jumper J19 and overall current via USB?
- Please check if is not connected +5V rail to +3.3V rail by jumpers.

I think it is likely that chips at board are already damaged. Maybe short time connection to Vcc=4.25 can chips (CC3220, TM4C129) can survive, but for a long time probably not.

Update: in case of call sl_Start(0, 0, 0); is enabled NWP and it requires much higher current. Probably power source (TPS62162) is not able provide this current. All indications shows that TPS62162 is toasted already. Maybe other chips ware still surviving, but in cannot survive 4.25V for a longer time.

Jan

Hi Hnz,

As I described before I have connected the 5V SMPS to J22 (5V jumper of LP) to power the LP and

after that  voltage regulator IC TPC62162 is damaged and due to this voltage I get at 3.3V jumper is 3.9V.

Also I am flashing the other LP in development mode but still it is giving a same debug error.

Can you tell me how could I change the firmware and boot loader files of the TM4C emulator IC.