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MarlinFirmware / Marlin

Marlin is an optimized firmware for RepRap 3D printers based on the Arduino platform. Many commercial 3D printers come with Marlin installed. Check with your vendor if you need source code for your specific machine.
https://marlinfw.org
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[FR] FSMC TFT for Octopus / STM32F446 #23787

Open mkornmue opened 2 years ago

mkornmue commented 2 years ago

Did you test the latest bugfix-2.0.x code?

Yes, and the problem still exists.

Bug Description

I can not configure the Octupus V1.1 for FSMC displays like ILI9488 driver. With the STM32F446Zxx controller it should be possible to use FSMC on EXP Port Pins.

But I cannot configure this. There is only a configuration for Generic SPI TFT diplays.

I want to use a Display from my Arduino with an ILI9486 driver and parallel communication.

Please give me advise how to fix it.

Bug Timeline

New bug

Expected behavior

ILI9486 driver implemenation Octopus V1.1 with FSMC support

Actual behavior

No response

Steps to Reproduce

No response

Version of Marlin Firmware

2.0.9.3

Printer model

CR-10S

Electronics

Bigtreetech Octopus V1.1,

Add-ons

Kuman R3 3.5 inch SCA3-1 display (ILI9486)

Bed Leveling

No response

Your Slicer

No response

Host Software

No response

Additional information & file uploads

No response

ellensp commented 2 years ago

As far as I am aware FSMC require to use specific pins, apart from some select lines. Many of these pins are already used by Octopus or not broken out at all.

You would need to do a fair bit of re-wiring to do this.

Name         Pin       Used_by
FMC_D0    PD14    FAN4_PIN
FMC_D1    PD15    FAN5_PIN
FMC_D2    PD2     NC
FMC_D3    PD1     NC
FMC_D4    PE7     EXP1_09_PIN
FMC_D5    PE8     EXP1_10_PIN
FMC_D6    PE9     EXP1_08_PIN
FMC_D7    PE10    EXP1_07_PIN
FMC_D8    PE11    PS_ON_PIN
FMC_D9    PE12    EXP1_06_PIN
FMC_D10   PE13    EXP1_05_PIN
FMC_D11   PE!4    EXP1_04_PIN
FMC_D12   PE15    EXP1_03_PIN
FMC_D13   PD8     (ESP-RX)  PD8
FMC_D14   PD9     (ESP-TX)  PD9
FMC_D15   PD10    (ESP-IO4) PD10

FMC_NWE   PD5     NC
FMC_NOE   PD4     E2_ENABLE_PIN

So I consider the this FR flawed and Unachievable without boards modifications.

mkornmue commented 2 years ago

As far I can see here. This can be done by re-wiring the EXP cables to the necessary inputs of the display. The TFT has 8 digital Pins Lcd 1-8, which can be done on EXP1 and a touch section which shall be connected on Touch port.

image

ellensp commented 2 years ago

FMC_D0 PD14 wired to FAN4_PIN, needs a bodge
FMC_D1 PD15 wired to FAN5_PIN, need a bodge FMC_D2 PD2 NC, not connected to anything at all FMC_D3 PD1 NC, not connected to anything at all

mkornmue commented 2 years ago

The BigTreeTech Octopus V1.1 board have the following

FMC_D0 PD14 wired to FAN4_PIN, needs a bodge FMC_D1 PD15 wired to FAN5_PIN, need a bodge FMC_D2 PD2 wired to SDIO header FMC_D3 PD1 wired to CAN header

mkornmue commented 2 years ago

But I will not use these pins. I want to use the following.

FMC_D4 FMC_D5 FMC_D6 FMC_D7 FMC_D9 FMC_D10 FMC_D11 FMC_D12

ellensp commented 2 years ago

I don't know if you can skip bits like that.