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AWR2243: RS232 can not be connected using Uniflash

stkhang
Prodigy 50 points
Part Number: AWR2243
Other Parts Discussed in Thread: MMWCAS-DSP-EVM, UNIFLASH

Dear Expert,

I'm trying to implement the Sflash boot mode of AWR2243.

Our radar PCB has the same schematic of TI's '4-chip cascade EVM', differs only the antenna configuration.

At the processor part, instead of the  TI's 'MMWCAS-DSP-EVM' (TDA board) we developed similar processing PCB by ourselves.

I think the 1st step of the implementing the Sflash boot mode is Flashing 'mmw_firmware (patch) binary' in Serial-flash memory connected to AWR2243 by QSPI.

And this Flashing should be conducted by Uniflash tool, but we failed to connect the COM port (RS232 of AWR2243) using Uniflash.

In our board, The schematic of RS232 can be represented like below,

[RS232 of AWR2243] <-> [Hirose connector] <-> [USB-to-UART Bridge(CP2102N-A02)] <-> [USB connector] <-> [PC with Uniflash]

After making connection and power-up the boards, the COM port connection failed in Uniflash tool.

The COM port from USB-to-UART Bridge was identified in Device Manager window at the PC. (The port name: Silicon Labs CP210x USB to UART Bridge)

Could you guide how to Flash the metaImage binary (xwr22xx_metaImage,bin) using Uniflash?

Thanks.

  • 0
    TI__Guru*** 141174 points

    Hi,

    Can you please try to connect a serial emulator such as Teraterm to the COM Port and check if you see any characters coming from the sensor?

    thank you

    Cesar

  • 0 in reply to Cesar
    Prodigy 50 points

    Hi,

    There is no characters in the terminal window after connecting the emulator 'PuTTY' to the COM port.

    The configurations of the COM Port connection are:

     - Connection: Serial

     - Speed (baud): 115200

     - Data bits: 8

     - Stop bits: 1

     - Parity: None

     - Flow control: X/ON/XOFF

    Is the wrong way that connecting USB port (with PC) to RS232 of AWR2243 through the USB-to-UART bridge (CP2102N-A02)?

    Thank you.