米6体育平台手机版

SLLU321 July 2022

3.2 TCAN1043A-Q1 EVM Setup

Configure the TCAN1043A-Q1 EVM for normal operation by installing shunts on the EVM as described in Table 3-1.

Table 3-1 Basic Operation Jumper Settings

Jumper	Shunt
JMP3	Installed – implements 120-Ω resistor between CANH and CANL
JMP5	Installed – implements 120-Ω resistor between CANH and CANL
JMP6	Installed – shorts V_CC and V_IO together Use P2 to drive V_IO independently from V_CC

Connect the power supplies to the EVM using the banana connecter P1, P2, P3, and P4. If banana cables are unavailable, use test points TP11, TP12, TP13, TP14, TP15, and TP16 instead.

Set P1 or TP11 to 5 V at 100 mA
Set P2 or TP to 1.8 V or 3.3 V or 5 V at 100 mA for the IO buffer voltage
Set P3 equal to GND
Set P4 or TP13 to 12.5 V at 100 mA

For more detailed information, see the schematic reference for power in Figure 4-1.

Connect the EVM to the CAN bus for network evaluation. TXD and RXD can be jumper connected to the CAN controller through JMP2 position 1 and position 3, respectively. If evaluating the TCAN1043A-Q1 without a CAN network, connect a function generator to JMP2 position 1 with the desired data rate. The generator should be set to provide a 0 V to 5 V TTL square wave into the high impedance input TXD. Connect an oscilloscope with high-impedance probes or high-impedance input to the CAN bus line CANH and CANL. Use a third channel on the oscilloscope to monitor RXD.