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en:hardware:avr-can:controller [2010/04/05 12:55]
mikk.leini created
en:hardware:avr-can:controller [2018/12/27 12:53]
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-====== Controller ====== 
  
-==== Soldering parts to PCB ==== 
- 
-Use the Partlist (see appendix) to check if you have all the necessary parts to 
-build to Autostudy CAN board. ​ Alternatively,​ the following picture gives an 
-overview of all the needed parts: 
- 
-{{  :​en:​hardware:​arm-can:​can-v4_parts_1.jpg?​500 ​ |Figure 1.1: Parts}} 
- 
-Figure 1.1: Parts 
- 
-To solder the parts onto the board in the most efficient manner, parts with smaller 
-height should be added first. Use the part list for reference. The first parts to be 
-soldered on to the board are the resistors and diodes. 
- 
-{{:​en:​hardware:​arm-can:​can-v4_1.jpg?​250|Figure 1.2: Step 1}} 
-{{  :​en:​hardware:​arm-can:​can-v4_2.jpg?​250|Figure 1.2: Step 2}} 
- 
-Figure 1.2: Step 1+2 
- 
-After that, solder the oscillators (Q1, Q2), small capacitors (C1-C4) and the IC 
-sockets onto the board. ​ When soldering the IC sockets, the location of the IC 
-socket’s notched ends have to match with the labels on the PCB. Buttons (KEY1, 
-KEY2, KEY3, RESET) and LED (LED1, LED2, LED3, PWR-LED) are the next 
-parts to be added subsequently. 
- 
-{{:​en:​hardware:​arm-can:​can-v4_3.jpg?​250|Figure 1.3: Step 3}} 
-{{  :​en:​hardware:​arm-can:​can-v4_4.jpg?​250|Figure 1.3: Step 4}} 
- 
-Figure 1.3: Step 3 + 4 
- 
-Solder pin headers, electrolytic capacitor (C5), DC jack and USB jack onto the 
-board. 
- 
-{{:​en:​hardware:​arm-can:​can-v4_5.jpg?​250|Figure 1.4: Step 5}} 
-{{  :​en:​hardware:​arm-can:​can-v4_6.jpg?​250|Figure 1.4: Step 6}} 
- 
-Figure 1.4: Step 5 + 6 
- 
-In a last step, put the 4 IC (voltage regulator, Atmega32, CAN controller, CAN 
-transceiver) into their corresponding sockets. The orientation of the IC have to 
-match the orientation of the IC sockets (see the IC’s notched ends). ​ Jumpers 
-JP1, JP2, TERM are to be placed on the pin headers (2x1). ​ Please note that the 
-jumpers TERM and JP1 will not be used until later. Therefore, they must not (!) 
-connect the two pins of their pin headers (see below). The soldering process is 
-now completed and the board should be tested. 
- 
-{{  :​en:​hardware:​arm-can:​can-v4_7.jpg?​250 ​ |Figure 1.5: Step 7}} 
- 
-Figure 1.5: Step 7 
- 
-==== Testing the board ====  
- 
-Warning: The device can be powered by 3 different means: (1) through the use 
-of the provided AC/​DC-adaptor (2) from the PC over USB (3) over the CAN Bus 
-from another CAN board that is being powered by one of the abovementioned 
-means The USB cable and the AC/​DC-adaptor should not be plugged in simul- 
-taneously ( !  )  If 2 boards are connected via CAN, jumper JP1 can be used to 
-power one board while the other board is powered by either (1) or (2).  In this 
-case, don’t connect the secondary board to any other power source ( ! ) 
- 
-{{  :​en:​hardware:​arm-can:​aufbau1.jpg?​500 ​ |Figure 1.6: Structure}} 
- 
-Figure 1.6: Structure 
- 
-Example of three CAN-boards connected with ribbon cables, one powered by 
-USB and the other two boards indirectly powered via CAN Connect the provided AC/​DC-adaptor to the board’s DC jack. If the red PWR- 
-LED doesn’t work, unplug the AC/​DC-adaptor and check the orientation of the 
-voltage regulator IC first. If the IC is positioned correctly, plug the adaptor back 
-in and use a multimeter to confirm the correct voltage output of 5V between the 
-voltage regulator’s ouput pins 1 and 4 (FB and GND, respectively). Unplug the 
-AC/​DC-adaptor and use the USB cable to connect the board to the PC. The red 
-PWR-LED indicates that the device is functioning. 
en/hardware/avr-can/controller.txt · Last modified: 2018/12/27 12:53 (external edit)
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