TFT35 - ACK Timed Out. Pending GCODE Released

[KingKappa101]

Hello to the forum members. I've connected a TFT35 V3.0.1 to a SKR1.4Turbo via the RS232 cable. On the testing of my first extruder, all appears ok. (it extrudes E0) and also unloads. When attempting testing the second extruder (E1) I receive the following error on the TFT35 ACK timed out. Pending gcode released.

Same happens if I swap the extruder cables - so the steppers are ok. On pressing ok the error returns continually. On viewing the error on the TFT35 i view the following (see second image attached). The scan rate also slowly increments. Firmware version currently in use for the TFT35 is BIGTREE_GD_TFT35_V3.0_B1.28.x

Any assistance appreciated. Can a modification be done to the TFT35 config.ini to work around this issue or should I be looking at Marlin options in the SKR1.4 board firmware to get around this in VSCODE CONFIG.h or CONFIG.ADV.h Thanks for listening.

[KingKappa101]

Hello - A followup. Rebuilt firmware with Marlin-bugfix-2.1.x 6. GD chipset on TFT35 - Upgraded firmware to BIGTREE_GD_TFT35_V3.0_B1.28. Modified config.ini to tx_slots:4 (may or may not of been required) Done.

Cheers KingKappa101

[inonoob]

Hey,

I have the same issue. I'm not sure what you did to fix your issue.

BR

[KingKappa101]

Hi Firstly make sure you have the correct firmware for the TFT35 There are two versions. Depending on the chipset on the TFT35. Note:- Must be the correct one. The section Firmware Binary explains it at this web link. https://github.com/bigtreetech/BIGTREETECH-TouchScreenFirmware?tab=readme-ov-file#firmware-binary You then need to configure the config.ini for the TFT35 for your requirements. Again - a blank SDcard with your modified config.ini in the slot on the TFT35 and power on the board/display. The modifications I believe most important for the config.ini of the TFT35. The first sets the baud rate for communications between the Display and the mainboard to 115200. Make sure the Marlin firmware baud rate for your board also reflects this Note: this a line in your Marlin Firmware #define BAUDRATE 115200 Note - A line in the TFT35 config.ini serial_port:P1:6 P2:6 P3:6 P4:6 This line I believe sets the channels, memory locations for inter board communications between the TFT35 and the mainboard. Note - A line in the TFT35 config.ini tx_slots:4 Try this and see if it helps. Also read as much information on TFT35 as you can, there is plenty out there. Cheers

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Hey, I have the same issue. I'm not sure what you did to fix your issue. BR — Reply to this email directly, view it on GitHub <#2985 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AZ54OHTUNGRFJUWELTUIF2L33J24RAVCNFSM6AAAAACD7BXSVKVHI2DSMVQWIX3LMV43URDJONRXK43TNFXW4Q3PNVWWK3TUHMYTIOBYGU2TGMA>. You are receiving this because you authored the thread.

[kisslorand]

...or you can use a FW that just works... everybody knows where that FW is....