CCS/IWR6843ISK: unflash Programming problem

user6326739

Part Number: IWR6843ISK
Other Parts Discussed in Thread: MMWAVEICBOOST

Tool/software: Code Composer Studio

Hello,now IWR6843ISK has the same problem. I am sure the COM ports have been enumerated right and have the right SOP settings for the flashing operation. But when using Uniflash and I get an error:

"Initial response from the device was not received. Please power cycle device before re-flashing." I am using XDS110 Class Application/User UART (COM7）.There was no program in the chip before..The chip version is ES2.0. SDK version 3.4.0

Then I used CSS to burn the program and there was an error: (I did not use Unflash to burn the ccs debug bin file, because the same error will occur:"Initial response from the device was not received. Please power cycle device before re-flashing." )

over 5 years ago

0 Charles Oladimeji over 5 years ago

TI__Mastermind 33805 points

Hi,

Can you please share a picture of your setup?
is this is custom board or an EVM
for CCS are you using the antenna board (IWR6843ISK( together with the MMWAVEICBOOST?
Can you confirm SOP Pins are other switches are set correctly?
Lastly can you please confirm there is not other terminal or applications connected to the COM port?

Regards,

Charles O

0 user6326739 over 5 years ago in reply to Charles Oladimeji

Prodigy 70 points

I am sure SOP Pins and other switches are set correctly and only unflash connect to COM port. Press the reset button after setting.

But my EEPROM chip was accidentally damaged and replaced with the same model CAT24C08WI-GT3. There is no program in the chip now.

0 Charles Oladimeji over 5 years ago in reply to user6326739

TI__Mastermind 33805 points

Hi,

Was the EVM working (Programming) before the EEPROM got damaged?
How did it get damaged? did you confirm surrounding components were unaffected?

Regards,

Charles O

0 user6326739 over 5 years ago in reply to Charles Oladimeji

Prodigy 70 points

Hi，

There is also an untouched iwr6843isk board that can be flashed into the program normally. This board has not been brushed before, and it was directly used for experiments. The mmwave chip was replaced by TI’s latest 6643 chip through a regular PCB manufacturer. The EEPROM was replaced because of excessive solder on the pins during debugging. Replaced by the manufacturer, without damage to surrounding components.

UART communication is normal, it can be seen through the serial port, but there is no program in the mmwave chip.

0 Charles Oladimeji over 5 years ago in reply to user6326739

TI__Mastermind 33805 points

Considering the IC was replaced and EEPROM also replaced, I suggest troubleshooting the board for electrical and soldering issues. Also the picture shows SOP set to flashing mode, please not CCS debug does not work in this mode.

Regards,

Charles O

0 user6326739 over 5 years ago in reply to Charles Oladimeji

Prodigy 70 points

Hello,

After checking the electrical connection, there is no problem. I would like to ask

Doesn't it matter if there is no program in EEPROM?
Could it be that there is a problem with the flash chip? Before flashing the program, there is no program in the flash, right?

0 Charles Oladimeji over 5 years ago in reply to user6326739

TI__Mastermind 33805 points

Hi,

The EEPROM has no effect on flashing, you are flashing the SFLASH not the EEPROM.

You need to flash the debug bin successfully though to be able to run CCS debug.

Regards,

Charles O

0 user6326739 over 5 years ago in reply to Charles Oladimeji

Prodigy 70 points

As I said before, the flash card in the open the COM step shows “Initial response from the device was not received”.

Is there something wrong with the flash chip? How can I check if the flash chip is intact?
Can I replace a flash chip? It should not be loaded with other programs at the factory, right?

0 Charles Oladimeji over 5 years ago in reply to user6326739

TI__Mastermind 33805 points

Hi,

Can you try using mmWave studio? this mode should bypass the flash and will indicate if the flash is faulty or the IC.

Regards,

Charles O

0 user6326739 over 5 years ago in reply to Charles Oladimeji

Prodigy 70 points

I can successfully load this firmware through mmwave studio. But it still doesn't work through unflash software.（Use unflash is only connected to XDS110 USB）

0 Charles Oladimeji over 5 years ago in reply to user6326739

TI__Mastermind 33805 points

Hi,

Can you confirm SPI connect and RF power up is also working? if its not then its an issue with the IC and if it is then you need to check the SFLASH.

Regards,

Charles O

0 user6326739 over 5 years ago in reply to Charles Oladimeji

Prodigy 70 points

Hi，

SPI can be connected. It should be a problem with SFLASH. Can you just change to the same model?

0 Charles Oladimeji over 5 years ago in reply to user6326739

TI__Mastermind 33805 points

Hi,

Yes you can change to the same model. You should also check the voltage rails and components around the SFLASH to ensure there were no damage while performing previous rework

Regards,

Charles O

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CCS/IWR6843ISK: unflash Programming problem