More than four analogX on a single CAN bus

jsa · Post by **jsa** » Thu May 02, 2019 7:26 pm

Looking at the wiki I see the base address and offset configuration that allows 4 analogX modules on a single CAN bus.

Skimming through code on github I see

Code: Select all

 // CANFilter shiftx2_can_filter = &#123;1, 0, 1, 0, 0x000E3700, 0x1FFFFF00&#125;; // g_can_base_address, ANALOGX_CAN_FILTER_MASK
.
.
.
offset |= palReadPad&#40;GPIOA, ADR1_ADDRESS_PORT&#41; == PAL_HIGH ? 0x01 &#58; 0x00;
offset |= palReadPad&#40;GPIOA, ADR2_ADDRESS_PORT&#41; == PAL_HIGH ? 0x02 &#58; 0x00;

Are there limitations that would prevent loading a revised firmware to analogX, with different base address or offset, values so that more than 4 modules could be on the same CAN bus?

Post by **brentp** » Mon May 20, 2019 5:45 pm

Hi,

With updated firmware, you can have it listen on any CAN base ID as needed. No limitations.

jsa · Post by **jsa** » Tue May 21, 2019 11:16 am

Thanks Brentp. One step closer to purchasing more than 4.

What tools are needed to compile the revised firmware and load it to analogx?

Post by **brentp** » Tue May 21, 2019 3:04 pm

Hi,

We have updated the documentation here, which will be sufficient for a knowledgeable engineer to program and update the firmware.
https://github.com/autosportlabs/AnalogX

If you are looking for a quantity OEM-style purchase, we can be contracted for these services. Just email sales@autosportlabs.com and we can help out.

Thank you,