[BUG] MKS Robin E3 hangs after PR #19614

[ldursw]

Bug Description

After applying the PR #19614 the printer gets stuck on the bootloader screen, Marlin does not start up.

I have updated the branch 2.0.x from 2.0.7 to the latest commit and noticed Marlin didn't boot. I've done a bisect to find the commit and found 25cf9c6 to be causing the regression.

My Configurations

Marlin.zip
Printer: Ender-3 Pro
Board: MKS Robin E3

Steps to Reproduce

1. Build Marlin with the commit applied
2. Flash the firmware using a Micro SD card

Expected behavior: Marlin boots up and works normally

Actual behavior: Board gets stuck at bootloader

Additional Information

[oscar6502]

Same problem witch skrpro and reprap full graphic smart controller

[rhapsodyv]

can you try commenting out this like:

Marlin/Marlin/src/inc/Conditionals_LCD.h

Line 231 in 25cf9c6

#define LCD_USE_I2C_BUZZER // Enable buzzer on LCD, used for both I2C and SPI buses (LiquidTWI2 not required)

[thisiskeithb]

I can confirm that I'm seeing the same issues after #19614 was merged on an SKR Pro 1.1 and MKS Robin E3. I tried the latest bugfix on a BTT002 and it booted, but acted like you were holding down the encoder.

can you try commenting out this like:

That didn't work for my SKR Pro/Full Graphic Smart Controller build I have on the bench.

[rhapsodyv]

One more test: change all those 0x1F to 0xF 👍

Marlin/Marlin/src/HAL/STM32/fastio.h

Line 54 in 25cf9c6

if (V) FastIOPortMap[STM_PORT(digitalPin[IO])]->BSRR = _BV32(digitalPinToPinName(IO) & 0x1F) ; \

Marlin/Marlin/src/HAL/STM32/fastio.h

Line 55 in 25cf9c6

else FastIOPortMap[STM_PORT(digitalPin[IO])]->BRR = _BV32(digitalPinToPinName(IO) & 0x1F) ; \

Marlin/Marlin/src/HAL/STM32/fastio.h

Line 61 in 25cf9c6

#define _READ(IO) bool(READ_BIT(FastIOPortMap[STM_PORT(digitalPin[IO])]->IDR, _BV32(digitalPinToPinName(IO) & 0x1F)))

Marlin/Marlin/src/HAL/STM32/fastio.h

Line 62 in 25cf9c6

#define _TOGGLE(IO) (FastIOPortMap[STM_PORT(digitalPin[IO])]->ODR ^= _BV32(digitalPinToPinName(IO) & 0x1F))

[oscar6502]

I can confirm that I'm seeing the same issues after #19614 was merged.

can you try commenting out this like:

That didn't work for my SKR Pro/Full Graphic Smart Controller build I have on the bench.

I'm sorry, I don't speak English, I use a translator

[thisiskeithb]

I'm sorry, I don't speak English, I use a translator

I'm working with @rhapsodyv on Discord, so a fix should be incoming shortly.

[oscar6502]

I'm sorry, I don't speak English, I use a translator

I'm working with @rhapsodyv on Discord, so a fix should be incoming shortly.

Thank you, I appreciate your work and that of the community!

[thisiskeithb]

See #19678 for the fix.

[ldursw]

Confirmed #19678 fixed the issue for me.

[sjasonsmith]

I am very confused how fixing HAL/STM32 fixed E3 boards that use HAL/STM32F1. Two people have said it fixes it though, so I am at a loss...

[thisiskeithb]

I am very confused how fixing HAL/STM32 fixed E3 boards that use HAL/STM32F1. Two people have said it fixes it though, so I am at a loss...

After we talked, I wanted to figure it out as well.

The Robin E3 board can be...particular about SD cards sometimes and won't boot (It will after ~30 seconds, but appears to be stuck on the "boot" text screen).

I re-flashed 6fdaaf3 and the Robin E3 booted. 🤷‍♂️

I think we just happened to stumble into the bug & fix thanks to @oscar6502's comment.