產品說明0
樹莓派 Raspberry Pi RS485 And CAN Module
[軟件下載：]
- http://www.inno-maker.com/wiki
- support@inno-maker.com
[描述：]
- RS485和CAN模塊是Raspberry Pi的工業通信模塊，板載2 * RS485總線和1 * CAN總線通信接口通過SPI接口。
- CAN總線和RS485總線通過獨立的隔離電源模塊供電，收發器與控制器之間的信號隔離，對通信端口進行ESD保護，確保您的raspberry pi可用於更嚴格的工業現場
[特徵：]
- 1.兼容Raspberry Pi Zero / Zero W / 2B / 3B / 3B +。僅使用少量GPIO，其餘引腳允許用於其他擴展功能
- 2.電源和信號隔離，內置浪湧和ESD保護。
- 3. CAN功能，板載CAN控制器MCP2515通過SPI接口，板載高速CAN收發器，板載數字隔離ADUM1201BRZ，通信速率20Kbps-1Mpbs可任意編程。
- 4. RS485功能，通過UART控制，半雙工通信，無需編程即支持自動TX / RX控制，板載SPI至RS485 SC16IS1752。電氣數據隔離ADM2483。
- 5.板載120歐姆端子電阻，阻抗匹配，保證驅動能力。
- 1. Compatible with Raspberry Pi Zero/Zero W/2B/3B/3B+. Only a small amount of GPIO are used and the rest pins allow to work for other extended function
- 2. Power supply and signal isolation, Build-in surge and ESD protection.
- 3. CAN function, onboard CAN controller MCP2515 via SPI interface, onboard high speed CAN transceiver, onboard digital isolation ADUM1201BRZ, Communication Rates 20Kbps-1Mpbs can be programmed arbitrarily.
- 4. RS485 function, controlled via UART, half-duplex communication, supports automatic TX/RX control without programming, onboard SPI to RS485 SC16IS1752. Electrical data isolation ADM2483.
- 5. On board individual 120 Ohm terminal resistance, Impedance matching and guarantee the ability to drive.
[硬件描述：]
1.輸出接口說明：
| 項目 | 功能 | 描述 |
| 1 | RS485_A1 | RS485-1 A單 |
| 2 | GND_485 | RS485-1隔離GND |
| 3 | RS485_B1 | RS485-1 B單 |
| 4 | RS485_A2 | RS485-2 A單 |
| 五 | GND_ISO | RS485-2隔離GND |
| 6 | RS485_B2 | RS485-2 B單 |
| 7 | CANH | CAN-H |
| 8 | CAN_GND_ISO | CAN隔離GND |
| 9 | CANL | CAN-L S. |
1. Raspberry Pi上GPIO標頭的引腳映射。
| 密碼 | 覆盆子的PIN | 用法 |
| 19腳 | GPIO_10 | SPI0 MOSI |
| PIN21 | GPIO_9 | SPI0 MISO |
| PIN23 | GPIO_11 | SPI0 SCLK |
| PIN24 | GPIO_8 | RS485轉移芯片 選擇 |
| PIN26 | GPIO_7 | CAN傳輸芯片 選擇 |
| ·Pin18 | GPIO_24 | RS485中斷 |
| PIN22 | GPIO_25 | CAN中斷 |
【應用】：
【示意圖】：
