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EVM430-FR6989: Connectivity Issue

Part Number: EVM430-FR6989
Other Parts Discussed in Thread: MSP430FR6989, MSP-FET, MSP-EXP430F5529LP

Dear MSP team,

My customer is having a connectivity problem making use of the EVM430-FR6989. He has the CCS IDE installed to program the board together with the MSP family drivers.

When he plugs the board via USB they have constant power, however the computer detects the board during a few seconds correctly and after 5-6 seconds it stops detecting it (as if we unplugged the USB from the computer) and detects again immediately after the second, with the impossibility of programming the board.

They've tried with multiple cables, USB ports and even with another computer (CCS was installed) and the same problem arises.

The jumpers of the board have been checked to be accordingly to point 2.2.2 EZ-FET and 2.2.3 Communication Bridge of the user guide:

  • The EZ-FET programs the target MCU through the Spy-Bi-Wire interface. To program the target MCU, connect pin 1-2 (TEST_SBW) and pin 3-4 (RST_SBW) of J102, and pin 1-2 (GND) and pin 3-4 (3V3) of J401.
  • To enable USB-to-UART serial connection, also connect pin 5-6 (EZ_RXD) and pin 7-8 (EZ_TXD) of the J402. The EZ_RXD and EZ_TXD connect to P4.3/UCA0RXD and P4.2/UCA0TXD of the MSP430FR6989 respectively.
  • Communication Bridge: The communication bridge is a USB-HID device for controlling and monitoring the target MCU using the FlowESI GUI. The target MCU communicates with the communicate bridge by UART channel. To connect the target MCU and the communication bridge, connect pin 1-2, 3-4, 5-6, and 7-8 of J601. The COMM MCU can be reset by pressing button S201.

Have you faced this issue before to give some recommendations? 

Is it absolutely necessary to interact with the board through the FlowESI GUI on the first instance?

Thanks a lot for your support. Best regards,

Juan.

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