search

bigtreetech / BIGTREETECH-SKR-V1.3

32bit board with LPC1768, support marlin2.0 and smoothieware, support lcd2004/12864, On-board TMC2130 SPI interface and TMC2208 UART interface no additional wiring is required
1.01k stars 1.15k forks source link

Which PINs have PWM? #401

Open Eddiiie opened 4 years ago

Eddiiie commented 4 years ago

Is there something on the schematic that shows which pins have PWM capability or do they all have PWM? I have SKR 1.4 Turbo

Eddiiie commented 4 years ago

I did some poking around and found that the following pins have PWM - Verified PWM works - Z-Stop P1_27 PWRDET P1_00 I2C_SCA1 P0_00 I2C_SCL1 P0_01 SPI P0_26 (top left) (closest to power and CPU) (appears to not be used by SPI) NEOPIX P1_24 PROBE P0_10

Did not test but expected to work: SERVO P2_02

Pins I tested but bad things happened (lost access to the on board SD card): SPI_SCK1 P0_07 (top middle) DO NOT USE

Pins I did not test because bad things happened on related pins: SPI_MISO1 P0_08 (top right) DO NOT USE SPI_MOSI1 P0_09 (bottom middle) DO NOT USE

Pins I expected to work but did not work for PWM or GPIO - Maybe I need to change more in the config? E1_Det P1_25 E0_Det P1_26 Y-Stop P1_28 X-Stop P1_29

Pins I did not test (because I need them) but may work: E1 Stepper pins, E1 Enable P1_16 E1 Step P1_15 E1 Dir P1_14

TFT Pins TFT RX0 P0_03 TFT TX0 P0_02

Wifi Pins Wifi TX3 P4_28 Wifi RX3 P4_29

yray-yym commented 4 years ago

Why did you specify NEOPIX P0_24, isn't NEOPIX P1_24?

Eddiiie commented 4 years ago

Fixed! Thanks!

drom89 commented 3 years ago

Hello, any news on this topic ? And all of them are 3,3V ?