Frequently Asked Questions

EmRunner's CAN registers are accessed in two step:

1. put register address on the wire

2. put/read data to/from register

That is the reason, why standard LinCan  driver is not working as is. Following changes have to be made to make the driver working. 

Introduce such a global variable:
can_ioptr_t base_addr;
in gensja1000io_init_chip_data() base_addr should the value of chip_base_addr.

So write routine in gensja1000io.c would look like this:

gensja1000io_write_register( data, address)
{
can_outb(address - base_addr, base_addr); // calculate register offset
can_outb(data, base_addr + 1);
}
Read routine would look like this:
gensja1000io_read_register( address)
{
can_outb(address - base_addr, base_addr); // calculate register offset
can_inb(data, base_addr + 1);
}

CAN reset is to be handled the same way.