All Questions
15
questions
1
vote
1
answer
100
views
Request for Review: First PCB Design - Feedback on Potential Issues or Missing Elements
I have recently designed my first PCB and I am seeking feedback on it to ensure there are no errors or missing elements. I have attached the schematic of my design. The PCB includes various components ...
- 23
0
votes
2
answers
69
views
CAN Protocol traced routed with 90 ohm characteristic impedance
I am using ISO1042BDWV in my board. The schematic is given below. I know that the characteristic impedance of the CAN bus is 120 ohm.
The layout team routed CANH and CANL as 90 Ω differential. The CAN ...
- 2,583
0
votes
4
answers
80
views
Layout guidelines for TCAN1043DRQ1
I am using TCAN1043DRQ1 in my design.
May I know what are the layout guidelines I need to follow.
I checked the datasheet it. It does not say anything about layout guidelines. It tells more about ...
- 2,583
2
votes
1
answer
90
views
CANBUS module connector
I am wondering if someone can suggest a mating connector they used for the MCP2515 CanBus Module (to connect J4). I can not find any datasheet or anything for it but I will be mounting the module to ...
- 23
6
votes
3
answers
904
views
MCP2515 and Crystal Error
I'm making a board with MCP2515T-I/ML due to space constraints and it won't start up.
(datasheet) https://ww1.microchip.com/downloads/en/DeviceDoc/MCP2515-Stand-Alone-CAN-Controller-with-SPI-20001801J....
- 187
1
vote
2
answers
430
views
Please review my schematic
I wanted to know if my schematic looks correct.
I am unsure if I have connected VCC and GND correctly with the capacitor.
- 21
2
votes
3
answers
252
views
Are my PCB and schematic OK? Am I missing something?
this is my first time designing and ordering a PCB, so I'm quite nervous about this. So I thought you guys could have a look, since you are more experienced than me by far.
The PCB is for an ...
- 43
0
votes
1
answer
178
views
CAN Bus error frame in PWM driver
I have a CAN communication problem with my PWM RGB LED driver. I have a controller and a PWM RGB LED driver. The controller sends messages to the LED driver about what the PWM duty cycle of the RGB ...
- 155
0
votes
1
answer
105
views
Protect RJ45 CAN from POE
I'm trying to design a PCB with CAN Bus connection with STM32 (will be using a CAN transceiver) where we're using RJ45 for the CAN port. One of the main concern is what if the user plug in a Power ...
- 201
0
votes
1
answer
754
views
PCB layout for CAN bus transceiver
I have a PCBA where the connector for the CAN bus is about 40 mm away from the MCU. The MCU and connector positions are fixed but I am free in placing the CAN transceiver.
I haven't worked with CAN ...
- 757
0
votes
1
answer
294
views
Printed circuit board connector identification
I have a PCB with some connectors and wanted to identify which type there are of.
How do the experts approach the problem, to identify the type?
For example, the picture below shows a connector, ...
- 103
0
votes
1
answer
5k
views
PCB Routing of CANH and CANL
Continuation from an earlier question: Current Consumption of CANbus (CANH and CANL)
I understand how to specify my power supply for multiple CAN transceivers but I am now wondering about the details ...
- 1,197
0
votes
1
answer
130
views
Questions about CAN
I'm trying to build a network of interactive LED matrices which will communicate to each other. Each node will be a circular PCB containing an 8x8 RGB LED matrix that is connected through a vertical ...
- 1,197
0
votes
2
answers
162
views
High Speed PCB routing [closed]
I'm a new hardware design engineer. I have a few questions about high speed pcb design.
1) when I search high speed pcb design, I saw pcb routing like snake. What is this ?
2) When I draw a high ...
- 57
3
votes
2
answers
5k
views
CAN bus with star configuration/long stubs
I am assisting in the development of a machine, and have been tasked with achieving high speed CAN (as close to 1 Mbit/s as possible) in a star configuration. The restrictions are: each arm is ...
- 688