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STM32WB55MMG BOOT0 and SW

Lep
Senior

‎2023-04-26 06:17 PM - edited ‎2023-11-20 07:03 AM


_legacyfs_online_stmicro_images_0693W00000biv0xQAA.pngIn the datasheet of STM32WB5MMG, BOOT0 does not need to connect pull-up resistors and pull-down resistors, just connect GND or VCC directly.

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In STM32WB5MM DK schematic，Do swdio and swclk need to be connected with pull-up or pull-down resistors? I want to connect swclk, swdio and swo directly as shown in the picture. Is this 22R resistor necessary?


_legacyfs_online_stmicro_images_0693W00000biurnQAA.png​

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