We’d to use the Aster carrier which is smaller than the evaluation board but we need a CAN bus connection.
Has anyone already done this ?
Hi @herseon ,
Can you let me know, if you are using or want to use any specific Colibri module?
Best Regards,
Satyan
We plan to use an iMx7 Solo Colibri module.
Hi @herseon,
Colibri iMX7 offers 2x CAN interface (CAN_TX/RX signals), please refer to Colibri iMX7 datasheet, section 5.24 and table 5-46 (CAN signal pins) for more details.
On Aster, CAN_TX/RX signals (when using Colibri iMX7) are accessed at following connectors:
CAN1.RX:
- SODIMM_63 ---------------> X18, pin 1 (UNO_GPIO7, via level translator IC12)
- SODIMM_90 / SSP_RX ---------------> X18, pin 5 (UNO_SPI_MISO, via level translator IC12) OR X20, pin 21
CAN1.TX:
- SODIMM_55 ---------------> X17, pin 4 (UNO_GPIO6 via level translator IC11)
- SODIMM_92 / SSP_TX ---------------> X18, pin 4 (UNO_SPI_MOSI, via level translator IC12) OR X20, pin 19
CAN2.RX:
- SODIMM_188 ---------------> X20, pin 35 (via R123)
- SODIMM_196 / I2C_SCL ---------------> X20, pin 28 (via R129) OR X18, pin 10 (UNO_I2C_SCL, via level translator IC13)
- SODIMM_81 ---------------> X20, pin 31
CAN2.TX:
- SODIMM_194 / I2C_SDA ---------------> X20, pin 27 (via R126) OR X18, pin 9 (UNO_I2C_SDA, via level translator IC13)
- SODIMM_94 ---------------> X20, pin 29
Please refer Aster Carrier Board V1.1 schematics for more details.
https://docs.toradex.com/103044-aster-carrier-board-schematics.zip
You will need external CAN transceiver with Aster carrier board.
Hope the above details are helpful. Let me know if you have any further query.
Best Regards,
Satyan Raj