Trigorilla pro schematics and reverse engineering by gerryc89

Last crawled date: 4 years ago

Anycubic Trigorilla pro specs and mcu pinout
32bit Cortex-M3 MCU (STM32F103ZET6) 8MHz crystal
Soldered 5x A4988 stepper drivers configured to 16 microsteps (MS all to 3v3)
WIFI slot for ESP-01S
Onboard Winbond W25Q16JV 16Mbit SPI Flash
Onboard 24C16 I2C 16Kbit EEPROM
1F SuperCapacitor for blackout data backup with a mosfet for pwm charge
Onboard SD Card slot and pin header
USB Serial communication
Buzzer, sw controlled internal led
Second Extruder-Hotend DaughterBoard predisposition
Mounted in Anycubic Predator, I3 Mega and ecc with 4 inch Touch LCD
I have recostructed the schematics of this board from my predator, i hope that
in some time is possible to implement a custom firmware for this board without
change it. The schematics is designed with eagle cad free and is for only for
study purpose, only the foundamental signals are drawed, and some components
that i have selected are incorrect for the pcb, but for the digital wiring sense
is ok. The library for the drawing are all included, created from the
respectively authors.
Jumpers
JP1 = Bootloader, remove and power up for flashing
SW1 = 5V From usb or internal psu, is used for flash w/out psu
Stepper controllers and cpu pin cross table
X-MOTOR
DIR = PE6
STEP = PE5
nENABLE = PC13
Y-MOTOR
DIR = PE3
STEP = PE2
nENABLE = PE4
Z-MOTOR
DIR = PE0
STEP = PB8
nENABLE = PE1
EXTRUDER-MOTOR
DIR = PB5
STEP = PB4
nENABLE = PB9
Z2-MOTOR (not used in predator)
DIR = PC6
STEP = PC7
nENABLE = PG8
Digital Sensors all pull-upped to 5v
FILAMENT1 = PA15
Z- = PA14
Z+ = PA13 (autolevel removable switch un predator)
Y- = PA12
X- = PG10
Analog Sensors all pull-upped to 3v3
E-TEMP = PA1
B-TEMP = PA0
Fans
M-FAN = PD6 (internal motherboard for predator)
FAN0 = PG13 (duct blowers for predator)
FAN1 = PG14 (hotend fan for predator)
Heaters
HOT-END1 = PG12
HOTBED = PG11 (inverted)
Second Extruder-Hotend Headers (no signal conditioning, direct connected to cpu)
JP3
1-EXT = PC5 (Extruder STEP?)
2-RVO = PB1 (Extruder DIR?)
3-HOT2 = PG7 (HotEnd control out?)
4-COOL2 = PG6 (HotEnd fan control out?)
5-TEMP2 = PA2 (HotEnd ADC sensor in?)
JP6
1-GND
2-12/24V
3-12/24V
4-GND
5-GND
6-3V3
7-FILAMENT2 = PA3 (Second filament runout sensor?)
Voltage Alarm, SuperCapacitor and signaling
ALARM = PG2 (12/24V monitoring comparator output, to trigger backup)
PWM-OUT = PG4 (PWM generated from CPU for charge supercap w/out damange)
BUZZER = PB0 (frequency generated from cpu)
LED = PD3 (internal led inverted logic)
Memory
24C16
SCL = PG0
SDA = PG1
W25W16JV
nCS = PB12
CLK = PB13
DO = PB14
DI = PB15
SD Card slot and pin header JP2 (all pull-upped to 3v3 except CK)
CMD = PD2
CK PC12
D0 PC8
D1 PC9
D2 PC10
D3 PC11
Wi-Fi ESP01S ESP8266 Module socket J1
1 RX = PB10
2 3V3
3 GND
4 GPIO = PD12 (reset?)
5 NC
6 3V3
7 GND
8 TX PB11
orientation
|1|2| CPU
|3|4|
|5|6|
|7|8|
USB Serial communication
TX = PA9 (to RX pin of the PL2303)
RX = PA10 (to TX pin of the PL2303)
LCD Touch Display connector 39 pin start from X- connector
1 = 3V3
2 = NC
3 = NC
4 = NC
5 = GND
6 = PD14
7 = PD15
8 = PD0
9 = PD1
10 = PD7
11 = PD11
12 = PD5
13 = PD4
14 = PD13
15 = PE7
16 = PE11
17 = PE12
18 = PE13
19 = PE14
20 = PE15
21 = PD8
22 = PD9
23 = PD10
24 = PB6
25 = PA6
26 = PB7
27 = PA5
28 = PF11
29 = PE8
30 = PE9
31 = PE10
32 = GND
33 = GND
34 = GND
35 = 5V
36 = 5V
37 = 3V3
38 = 3V3
39 = 3V3