HELLO from Portugal
After reading many topics here, I still have a problem that has been reported several times but that is not being solved in my case.
I am developing a device to communicate with car dashboards in order to do some tests after repairs that are made. Like a car signal simulador to test the dashboard.
UNO+WiFi-R3-AT328-ESP8266-32MB-CH340G for PC conection
MCP 2515 with 8MHZ for CAN BUS interaction
These modules are connected in the usual way:
VCC – 5V from Arduino
GND – GND from Arduino
CS – D10 from Arduino
SO - D12 from Arduino
SI - D11 from Arduino
SCLK - D13 from Arduino
INT - D2 from Arduino
Without jumper on MPC2515
The dashboard is from a FIAT Punto (works at 500kb/s), is powered by a external 12v power supply and is monitored by an oscilloscope. So I am sure there is a signal at CAN low and CAN high after the key contact (+15).
These two CAN signals appear coherent and arrive at the MCP2515 module.
I installed several libraries, tested several files to read and write in CAN protocole but nothing worked.
I even installed a program called CANHacker, following all the requested steps to interact that with the MCP module… but nothing works.
I'm starting to question if the MPC2515 is not damaged. I tested the connection cables between modules and the connections on Pin…
In order to start at the right way, could anyone help with an up-to-date library and program that you know that works in order to troubleshooting where is the error?
I promise to put pictures of each step tried and explanations of what was done in order to be a kind of tutorial for those who have the same type of problem.
Thanks in advance.