產品說明0
樹莓派 Raspberry Pi RS485 And CAN Module
[軟件下載：]
[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：
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項目
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功能
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描述
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1
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RS485_A1
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RS485-1 A單
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2
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GND_485
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RS485-1隔離GND
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3
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RS485_B1
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RS485-1 B單
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4
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RS485_A2
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RS485-2 A單
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五
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GND_ISO
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RS485-2隔離GND
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6
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RS485_B2
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RS485-2 B單
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7
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CANH
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CAN-H
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8
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CAN_GND_ISO
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CAN隔離GND
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9
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CANL
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CAN-L S.
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1. Raspberry Pi上GPIO標頭的引腳映射。
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密碼
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覆盆子的PIN
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用法
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19腳
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GPIO_10
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SPI0 MOSI
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PIN21
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GPIO_9
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SPI0 MISO
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PIN23
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GPIO_11
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SPI0 SCLK
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PIN24
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GPIO_8
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RS485轉移芯片
選擇
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PIN26
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GPIO_7
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CAN傳輸芯片
選擇
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·Pin18
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GPIO_24
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RS485中斷
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PIN22
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GPIO_25
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CAN中斷
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【應用】：
【示意圖】：
