Programming tool for STM32MP157FAC1 and ESD protection required or not ?

[PS_115]

Hello,

We are designing a custom board using the STM32MP157FAC1 device. For programming and debugging, we are planning to provide an STDC14 connector on our board and use the STLINK-V3SET debugger/programmer.

We have the following queries:

(1.) Is the STLINK-V3SET suitable for programming and debugging the STM32MP157FAC1 device?

(2.) We have connected T_VCP_TX (Virtual COM Port transmit signal) to PG11, which can be configured as UART4_TX, and T_VCP_RX (Virtual COM Port receive signal) to PB2, which can be configured as UART4_RX on the STM32MP157. Kindly confirm whether this connection scheme is correct.

(3.) The SWD and Virtual COM UART signals are connected directly from the STDC14 connector to the STM32MP157FAC1 device. Is any ESD protection recommended on these signals? If yes, kindly share the relevant reference.

Regards,

Prashant Sharma

[LCE]

ESD protection:

If that board is always only used and handled in an ESD-safe environment, it’s not necessary.

But if you have the space on the board and can afford a few extra cents, always put at least some low cap TVS on there, at least some small stuff in 0603 or SOT23.

I’m currently using a few ESDAVLC6-2BLY for all signals at the ST-Link connector.