FAQ - markniu/PandaPi GitHub Wiki

endstop not work?

1.check diag pin

If you use limit endstop instead of sensorless homing, the DIAG pin is not used,and not allowed to plug in,so you can bend it like the following or cut off the DIAG pin on the driver. tmc2209

2.Get endstop status by Send gcode M119 through octoprint

Send: M119
Recv: Reporting endstop status
Recv: x_min: open
Recv: y_min: open
Recv: z_min: TRIGGERED

3.Endstops falsely trigger due to noise,

enable the noise threshold in Configuration.h

#define ENDSTOP_NOISE_THRESHOLD 2

TMC Error message:

Testing X connection... Error: All LOW
Recv: Testing Y connection... Error: All LOW
Recv: Testing Z connection... Error: All LOW
Recv: Testing E connection... Error: All LOW

The reason of this TMC Error message is that with write only access to TMC, and there is no RXD connection in the hardware. So that's normal. https://github.com/markniu/PandaPi/wiki/How-to-run-TMC2209-with-UART-mode-(V2.0-2.5)

LCD12864 blank，but can be connected from octopi.

please check the LCD type in the configureation.h,if you use LCD12864 please disable the touch LCD by add "//"before the DGUS_LCD_UI_PANDAPI as following

//#define DGUS_LCD_UI_PANDAPI