DIO16 8 Channel digital input and 8 Channel digital output board. V1.0 August CANBUS-DIO16 Rev B v1.0

Transcription

1 DIO16 8 Channel digital input and 8 Channel digital output board V1.0 August 2017 Product name Model number Manufacturer DIO16 8 Channel digital input and 8 Channel digital output board CANBUS-DIO16 SK Pang Electronics Ltd 1

2 Contents Table of Contents 1. Introduction Features Input and Output Connection Ω Terminator CAN and Power Input RGB LED CAN Data Format State Machine control Digital output Digital input Heartbeat Unit Configuration Defaults Example Switch and LED connection Firmware Update Update via USB Update via CAN

3 1. Introduction This board provides 8 channel digital inputs and 8 channel digital outputs. The input are 5v TTL level. The output is an open collector with a current limit of 500mA, max voltage of 50v. The firmware is upgradeable via the micro USB connector Features 8 x Input (5v TTL) Programmable input Pull-up 8 x Open collector 500mA per channel 6v to 16v input supply Reverse input voltage polarity protection Selectable CAN baudrate 125, 250, 500, 1000kbps UART output SWD/JTAG header RGB LED indicator Firmware upgradeable via USB or CAN 1.2. Input and Output Connection The inputs are via connector JP16. The outputs are via connector JP15. 3

4 Ω Terminator There is a 120Ω fitted to the board. To use the terminator solder a 2way header pin to JP1 then insert a jumper CAN and Power Input The CAN input and power is via connector J RGB LED There is a RGB LED fitted to the board. This colour and function are: Colour and State Flashing white Flashing blue Flashing green Flashing yellow Solid green Solid yellow (red/green) Solid blue Solid red Function Booting up Transmit data Receive data Operational state Stopped state Baudrate changed, waiting for power cycle Unit fault 4

5 2. CAN Data Format 1.6. State Machine control CAN ID DLC D0 D1 0x01 2 Node ID Command Command : 0x01 Operational 0x02 Stop 0x80 Reset 1.7. Digital output CAN ID DLC D0 0x200 + node ID 1 Output Output : 0x00 to 0xFF of output port Digital input CAN ID DLC D0 D1 0x300 + node ID 2 Input 0 Input : Input state of the input port Heartbeat CAN ID DLC DO D1 0x700 + node ID 2 Status Firmware version Status: 0x00 Bootup 0x01 Operational 0x02 Stopped 5

6 1.10. Unit Configuration CAN ID DLC D0 D1 D2 D3 D4 D5 D6 D7 0x7E5 8 Node ID Command Data x7F 0xAA 0x55 D1 Command : 0x01 New node ID 0x02 Baudrate 0x03 Input pullup 0x04 Input Polarity 0x05 Input Cycle time 0x06 Heartbeat Cycle time D2 Data : New node ID Node ID (0x01 to 0x7F) Baudrate 0 : 125kbps 1 : 250kbps 2 : 500kbps 3 : 1000kbps Input pullup 0x00 Disable input pullup for Input 1 to 8 0xFF Enable input pullup for Input 1 to 8 Input Polarity 0x00 Normal polarity for Input 1 to 8 0xFF Inverse polarity for Input 1 to 8 Input Cycle Time 0x01 to 0xFF, in multiple of 500mS. For example 0x02 is 1 second Heartbeat Cycle time 0x01 to 0xFF, in multiple of 500mS. For example 0x02 is 1 second 6

7 1.11. Defaults The board is shipped with the following defaults: CAN ID : 0x0A Baudrate : 500kbps Input pullup : 0xFF Input Polarity : 0xFF Input Cycle Time : 0x01 (0.5 second) Heartbeat Cycle time : 0x0A (5 second) 3. Example Switch and LED connection The above example shows a push button is connected to Input 1. Note, the input pullup is required to be enabled for this port. The cathode of the LED is connected to Output 1 via a 300R resistor. 7

8 4. Firmware Update The board firmware can be updated by USB or CAN Update via USB The DIO16 board firmware can be upgraded by the on board USB connection. Currently this can be carried out only on Windows machine. It does not work on macos. 1) Insert a jumper across JP3 as shown above in red. 2) Connect an micro-usb cable to the board and PC. 3) Power up the board via connector J3. 4) You should see another drive called CRP DISABLD. 5) Right click the firmware.bin file and delete it. 6) Drag the new firmware file to the E: drive. 7) Right click the E: drive and select Eject. 8) Remove jumper in JP3 and power cycle the board. 8

9 1.13. Update via CAN To update the firmware via CAN, a PCAN-USB Pro from Peak System is required. Also Flash Magic software from Embedded Systems Academy. Ensure the PCAN-USB Pro driver is installed and working correctly first. Note : This method of update requires the board to be removed from an existing CAN network because it operates at 100kbps. 1. Insert a jumper across JP2 as shown above in green. 2. Ensure terminator JP1 is closed. 3. Connect the CAN output from PCAN-USB Pro and power to the board via J3. 4. Start Flash Magic software. 5. Select LPC1549 CAN as the device. 9

10 6. Tick the checkbox Erase blocks used by Firmware, Verify after programming and Fill unused Flash. 7. Click the Browse button and select new firmware hex file. 8. Click the Start button and wait. 9. Check it when finished with no errors. 10. Remove JP3 and power cycle. 10