canlab-cz / triple

Linux SocketCAN driver for USB2CAN Triple from Canlab s.r.o.

USB2CAN

Driver is experimental !!!

SLCAN like driver for PIC based USB to CAN adapter USB2CAN Triple from Canlab s.r.o. For more info https://github.com/canlab-cz/triple/wiki/Manual

You can find HW here : www.canlab.cz

Easy start :

1. git clone https://github.com/canlab-cz/triple
2. cd triple
3. make
4. sh ./start.sh

Start script runs as default this config
port 1 - speed 250K, listen_only false
port 2 - speed 500k. listen_only false
port 3 - speed FD 125k-6M7, listen_only false, iso false, esi false

To kill and unload all sh ./end.sh !!!! Call it before you disconnect adapter from USB !!!!

Tested on Ubuntu 20.04 - kernel 5.13
Tested on Ubuntu 22.04 - kernel 5.15

Prepared Vmware virtual machine Ubuntu 22.04 with precompiled driver in /home/triple/triple, so it can be simply runned using start.sh script
also can-utils package is installed so you can use "candump can0" or "cansend can0 ..."
login: triple
pass: triple
https://drive.google.com/file/d/1kBT1YvstEnOCgCjsyL4rnoIupsYYywCf/view?usp=sharing\

To run this VM you need to install VMware Workstation player :
https://www.vmware.com/products/workstation-player.html

triple's Issues

tripled_64 is crashing when setting user defined bittiming

tripled_64 is crashing when setting user defined bittiming.

sudo ./tripled_64 ttyACM0 -s0x09:0x0A:0x21 -c10:6:1:1:10:6:1:1:0:0:2 -ncan0:can1:canfd2
Neoprávněný přístup do paměti (SIGSEGV)

With debugging prints:

sudo ./tripled_64 ttyACM0 -s0x09:0x0A:0x21 -c10:6:1:1:10:6:1:1:0:0:0 -ncan0:can1:canfd2
str=10, num=10
str=6, num=6
str=1, num=1
str=1, num=1
Neoprávněný přístup do paměti (SIGSEGV)

First problem is, that user_speed should have 11 items, not only 10:

triple/utility/main.c

Line 91 in 4aa706b

unsigned int user_speed[10];

Second problem is with tmp, which should also have 11 items:

triple/utility/main.c

Line 107 in 4aa706b

char *tmp[3];

Both are used in this loop:

triple/utility/main.c

Lines 166 to 167 in 4aa706b

	for (i = 0; i < 11; i++)
	user_speed[i] = strtoul(tmp[i], NULL, 10);

Not working with kernel 5.16

I'm using Fedora 35 with kernel 5.16.11, but unfortunately, driver does not compile with this kernel version. I tried to fix it (see commit 97d4bc0), and I fixed compilation problems, but when executing candump, the whole system froze, so there is some other problem as well.

tripled_64: Add predefined CAN FD speeds

I'm missing predefined speeds with equal nominal and data baud rates. Would it be possible to add them?

Currently I'm setting 500/500 kb/s with -c10:6:1:1:10:6:1:1:0:0:0, is it correct?