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Hardware Interfaces

2.4 Jumpers

JP1 and JP2 are available to configure the resolver carrier signal driver. The carrier signal may either be

driven directly by the AMC1210 or through the OPA1632 operational amplifier. The purpose of the

OPA1632 is to provide the ability to filter the carrier signal and continue to be capable of sourcing 85 mA

on the carrier. This interface is shown in Table 4.

Table 4. AMC1210MB-EVM JP1 and JP2 Interface

Jumper

JP1 JP2 Description

1-2 closed 1-2 closed PWM carrier signal is driven by the OPA1632

2-3 closed 2-3 closed PWM carrier signal is driven directly from the AMC1210

2.5 Power Supplies

If the OPA1632 is in use (JP1 and JP2 in the 2-3 position; refer to Table 4), positive and negative supply

rails must be provided at terminal block J6 or TP6 and TP8. Terminal block J6 connections are described

in Table 5. All other power is supplied through barrel jack J2 with a 5-V to 7-V wall adapter included in the

EVM kit.

Table 5. Terminal Block J6 Pinout

Pin Description

1 OPA1632 positive supply

2 GND

3 OPA1632 negative supply

2.6 LM3S3748 JTAG Connector

For embedded software investigations with the AMC1210MB-EVM, a 20-pin JTAG connector is provided

at J1. The Stellaris LM3S811 Evaluation Board is a low-cost Stellaris evaluation board that can function as

an in-circuit debugger for the LM3S3748 on the AMC1210MB-EVM. The JTAG connector key should face

the inside of the board, or the pins should align as described in Table 6.

Table 6. LM3S3748 JTAG Connector

Pin Signal

2, 4, 6, 8, 10, 12, 14, 16, 18, 20 GND

3, 11, 15, 17, 19 Floating

1 3.3 V or XVCC

5 TDI

7 TMS

9 TCK

13 TDO

SBAU188– February 2012 AMC1210MB-EVM

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