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AWR1843BOOST: Not able to Flash

Part Number: AWR1843BOOST
Other Parts Discussed in Thread: AWR1843, UNIFLASH

Team,

Customer is evaluating AWR1843 for BSD application. They are facing some issue related to flashing as described below-

"We are using AWR1843 EVM ,we want to do debugging /flash using JTAG port using external XDS110 PROB and need to bypass xds110 circuit of EVM . We have removed 4 resistors which connecting the internal awr1843 to xds110 IC connection. And trying to flash and debug the module. 

We have successfully debugged using that PROB, but are not able to flash the code and it gives an error .

I have checked the schematic of EVM -  only 4 JTAG pins and on I2c port and one MSS debugger pin is used with awr1843 IC . What is the use of I2C port here? and MSS debugger if I am not using that 3 pins what could be the result in debug and flash the code.

Are there any software level changes in boot section to connect direct mode as flash with XDS110.we have connected vcc(3.3V) GND and 4 JTAG pins with connector and AWR sensor. Hardware has mode state switch as we have placed that in flash mode only while flashing and doing flash with uni flash software.  

Also let me know the Use of VPP supply can I  not use it in my design it showing optional what is her purpose of that please let me know in detail so I can decide I can use it in my design or not.

Please let me know if you need any further info.

Regards,

Sai.

  • Hello,

    The board is flashed using the AR_RS232TX/RX signals. If you want to flash the board without XDS110, you should disconnect these resistors and connect them to an external USB to UART converter. Flashing is not done through JTAG with Uniflash.

    The VPP pin is used for programming the keys on secure variants. It is not used on general purpose devices.

    Regards,

    Adrian