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config: Add hardware architecture details for CR-10 Smart

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Enhance documentation with details about the secondary strain gauge
board architecture:
- Secondary board has dedicated STM microcontroller for load cell
- Communicates with main board via I2C/UART
- Physical Z endstop configuration frees up communication pins

Signed-off-by: Matias Canosa <matiascanosa@users.noreply.github.com>
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Matias Canosa 2025-09-21 18:46:08 -03:00
parent a11bde366d
commit c59e3d9fd2
1 changed files with 7 additions and 0 deletions
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7
config/printer-creality-cr10-smart-cr-fdm-v2.5.s1-2022.cfg
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@ -1,5 +1,12 @@
# This file contains pin mappings for the Creality CR-10 Smart
# with a CR-FDM-v2.5.S1 mainboard (STM32F103RET6).
#
# Hardware architecture:
# - Main board: STM32F103RET6 microcontroller
# - Secondary strain gauge board: Dedicated load cell controller with
# its own STM microcontroller, communicates with main board via I2C/UART
# - This configuration uses physical Z endstop instead of strain gauge probe
# to free up communication pins and ensure reliable operation
# To use this config, during "make menuconfig" select the STM32F103
# with a "64KiB bootloader" and serial (on USART1 PA10/PA9) communication.