AZ-GTI
来自Jack's Lab
1 Overview
- 信达 AZ-GTI 官网,自重 1.3kg,载重 5kg,电源 7-14V, 0.75A
2 Firmware
http://www.skywatcher.com/download/software/motor-control-firmware/
3 Hack
- 主控: STM32F051R8T6 STM32
- 64KB Flash, 8KB RAM
- Power Supply: 2 - 3.6V (4V max)
- PIN1/13/32/64 --- 3.3V
- PIN12/31/63 --- GND
- PIN46 --- SWDIO
- PIN49 --- SWCLK
- PIN60 (BOO0) --- R11 (10K) --- J4 --- 3.3V
- PIN19 --- Q2 (ON 则到地) ,控制 Q1(AF4L,P-MOS,AO3415)组成的开关
- WiFi: ESP8266 官方模块(串口透传)
- EN --- PIN54 (J1_P1)
- IO15 (need pull-down) --- PIN53 (J1_P2)
- IO2 (need pull-up) --- PIN52 (J1_P3)
- IO0 (need pull-up) --- PIN51 (J1_P4)
- RXD --- PIN16 (USART2_TX) (J1_P5)
- TXD --- PIN17 (USART2_RX) (J1_P6)
- RST --- C2 ---GND
- 电源: RT8258
- https://www.richtek.com/assets/product_file/RT8258/DS8258-02.pdf
- 1.2A, 24V, 700kHz Step-Down Converter
- Input: 4.5V to 24V
- Output: 0.8V to 15V
- R1 = 100K, R2 = 32.4K(对地), 10uH, 22uF
- Motor
- U7_P1 --- GND
- U7_P6 --- AO1 (CH1 Output to motor)
- U7_P7 --- AO2 (CH1 Output to motor)
- U7_P8 --- PGND
- U7_P9 --- VM (Motor power supply pin, 2.5 ~ 13.5V)
- AZ1_P4
- ALT1_P4
- AZ2_P3
- Alt2_P3
- J1
- J1_P1 --- ESP_EN
- J1_P2 --- ESP_IO15
- J1_P3 --- ESP_IO2
- J1_P4 --- ESP_IO0
- J1_P5 --- ESP_RXD
- J1_P6 --- ESP_TXD
- J1_P7 --- 3V3
- J1_P8 --- GND