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whb0514 / QIDI_Max3_Bookworm

Apache License 2.0
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Question about used STM32 chip #5

Closed lutzgooren closed 4 months ago

lutzgooren commented 4 months ago

Hi there,

first of all: thank you for your work - I really appreciate it :) I'm a bit confused about the used STM32 chip: As mentioned in https://github.com/QIDITECH/QIDI_PLUS3/issues/27#issuecomment-2073932891, the used STM32 is F401. My X-6 v1.0 board seems to be using F402 (which is more or less the same chip, if I understood that correctly), but the default QIDI printer.cfg, which is shipped with the MAX-3, is allegedly compiled for F407:

This file contains common pin mappings for MKS SKIPR boards. To use this config, the firmware should be compiled for the stm32f407. When running "make menuconfig", select the 48KiB bootloader, and enable "Serial for communication" and select the "on USART1 PA10/PA9"

I guess the comment in the original printer.cfg is an error?

CChen616 commented 4 months ago

Yes, the original instructions in the printer.cfg file are incorrect. For the MAX3 (Plus3 Smart3) series machines, the mainboard should be configured as STMF401.