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LCE
Principal II
October 9, 2023
Solved

ST-Link on Nucleos: F7 vs H7 - Limitations?

  • October 9, 2023
  • 3 replies
  • 2177 views

Hello,

last year I designed a prototype pcb with a F767, for programming I used the Nucleo-F767's SWD interface (with some jumpers switched), that worked perfectly.

Now I need to re-design that board, but with a H723/H733, and I just checked the Nucleo-H723 I've been working with, and I see that the ST-Link part is completely different, mostly SWD connector layout, and no more options with jumpers.

For now I would like to keep using the Nucleo-F767 including connector layout, but are there any limitations concerning MCU type or anything else?
Specifically, can I program / flash / debug a H723 with a Nucleo-F767's ST-Link?

Thanks in advance!

This topic has been closed for replies.
Best answer by Pavel A.

Nucleo-H7's have ST-LINK version 3 and the "standard" mini 10-pin connector, and Nucleo F7 has ST-LINKv2. The SWD pins should be compatible. There is no good reason not to get a new ST-LINKv3 to debug your H723. This is much easier than hook a 2nd Nucleo and faster because v.3 has high-speed USB. New ST-Links v3 have 14-pin connector and cable, two extra pins on each side. The central 10 pins are same as on the 10-pin connector, two side pins are for the VCP.

3 replies

Pavel A.
Pavel A.Best answer
October 9, 2023

Nucleo-H7's have ST-LINK version 3 and the "standard" mini 10-pin connector, and Nucleo F7 has ST-LINKv2. The SWD pins should be compatible. There is no good reason not to get a new ST-LINKv3 to debug your H723. This is much easier than hook a 2nd Nucleo and faster because v.3 has high-speed USB. New ST-Links v3 have 14-pin connector and cable, two extra pins on each side. The central 10 pins are same as on the 10-pin connector, two side pins are for the VCP.

Tesla DeLorean
Guru
October 9, 2023

ST-LINK/V2 will work fine, just slower

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LCE
LCEAuthor
Principal II
October 9, 2023

Thanks, guys!

So yeah, for production later on I should directly go for the 14-pin connector, including the VCP.