TMS320F2800157: CAN Communication between f2800157 and APSoC zc702 board

Gowtham SM

Part Number: TMS320F2800157

Tool/software:

Hi

i need to make communication between f2800157 microcontroller and zynq zc702 APSoC through CAN.

connection
can_h (ti) to can_h(apsoc)
can_l (ti) to can_l(apsoc)
gnd to gnd

Whether this connection is correct?
i just need to verify the CAN is working is working or not between this.

so in ti i will run the example loopback.c and in apsoc i will use canopen to send, or see the incoming data's through can

16 days ago

0 Gowtham SM 16 days ago

Prodigy 10 points

Ryan Ma

0 Joseph Casuga 16 days ago

TI__Mastermind 34255 points

Hi Gowtham,

Searching for zync zc702 APSoc that you specified above, it seems like this is an EVM and not a CAN analyzer/scope. When connecting CAN nodes, these have to be done through a transceiver. Signal levels for f2800157 communication is at 3.3V domain. The EVM you have specified may not have the same signal level as the f2800157 device so best to use a transceiver to link the f2800157x node. See the Introduction section of app note https://www.ti.com/lit/pdf/sprace5 for some details.

Regards,

Joseph

+1 Gowtham SM 16 days ago in reply to Joseph Casuga

Prodigy 10 points

In zc702 board it has internally connected CAN transceiver.

And the TI microcontroller also have Transceiver inbuilt

How I should proceed now

0 Joseph Casuga 12 days ago in reply to Gowtham SM

TI__Mastermind 34255 points

Hi,

Just connect the CANL of the ZC702 to the CANL of the TI microcontroller and the CANH of the ZC702 with the CANH of the TI microcontroller. There should be a 120-ohm termination resistor between CANL and CANH if there are transceivers on both sides.

Regards,

Joseph

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TMS320F2800157: CAN Communication between f2800157 and APSoC zc702 board