Pesmerga Posted January 2, 2023 Share Posted January 2, 2023 Hello guys, i hope this is the right section. I'm having a strange issue with this pin2dmd i have built up. When connected to the PC the display works but when connected to the pinball it remains black. I have tried setting voltage on the stepdown to 4.9 and 5.1 and also to move the little jumper both on E5V and U5V, but nothing changes. I have tried to compare it with another working DMD and it seems that different LEDs are flashing: Working DMD Power led on nucleo board is ON On ST Board: LD4 COM Flashing LD6 on blue LD2 on Nonworking DMD Power led on nucleo board is ON On ST Board: LD4 COM Flashing LD6 on LD7 is on The pinball i have tested them with is a Bally TZ and both where linked to J116 on the Power drive board. Although the voltage is present on the nucleo board, I have tried to use the stepdown of the working one on the other but the problem is still there... Any advice for a solution? What about those different LEDs ? Some pics attached! Thank you in advance Link to comment Share on other sites More sharing options...
Content Provider lucky1 Posted January 2, 2023 Content Provider Share Posted January 2, 2023 Does it work in the real pinball after you press the black reset button on the Nucleo ? If yes you need to downgrade your ST-Link firmware https://vpuniverse.com/forums/topic/4582-bug-in-st-link-firmware-v2j36m26/ Link to comment Share on other sites More sharing options...
Pesmerga Posted January 2, 2023 Author Share Posted January 2, 2023 I have to try to reset! I'll let you know! How can I see which ST LINK firmware version i have installed on my board? Thanks Link to comment Share on other sites More sharing options...
Content Provider lucky1 Posted January 4, 2023 Content Provider Share Posted January 4, 2023 Try the versions from here https://community.st.com/s/question/0D53W00001pIyDkSAK/good-day-do-you-know-of-any-link-to-download-the-stlink-with-firmware-v2j34m25-or-v2j35m26-either-of-the-2-they-are-not-available-on-the-official-page-greetings Link to comment Share on other sites More sharing options...
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