SLUUDA1 April   2025

 

  1.   1
  2.   Description
  3.   Applications
  4.   Features
  5.   5
  6. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specifications
    4. 1.4 Device Information
  7. 2Hardware
    1. 2.1 Power Requirements
    2. 2.2 Setup
    3. 2.3 Header Information
      1. 2.3.1 USB Interface
      2. 2.3.2 Communication Interfaces
      3. 2.3.3 GPIO Interface (Future Implementation)
    4. 2.4 Jumper Information
      1. 2.4.1 Pull-Up Interface
      2. 2.4.2 1MHz Pull-Up Interface
      3. 2.4.3 MCU Power Headers
    5. 2.5 Push Buttons
    6. 2.6 Interfaces
      1. 2.6.1 Overview
      2. 2.6.2 I2C Interface
      3. 2.6.3 SMBus Interface
      4. 2.6.4 SPI Interface (Future Implementation)
      5. 2.6.5 UART Interface (Future Implementation)
  8. 3Software
    1. 3.1 Software Description
    2. 3.2 Software Installation
    3. 3.3 GUI Installation
    4. 3.4 Software Development
    5. 3.5 Programming Options
  9. 4Hardware Design Files
    1. 4.1 Schematics
    2. 4.2 PCB Layouts
    3. 4.3 Bill of Materials (BOM)
  10. 5Additional Information
    1. 5.1 Trademarks
  11. 6Related Documentation

2.6.4 SPI Interface (Future Implementation)

The SPI interface allows a host computer to interact with SPI interfaces, such as a battery monitor device through a 4-wire SPI interface. Connect the VSS, SPICS, SPICLK, SPIDO, and SPIDI to the target device. There are pull ups attached to these lines for signal integrity, confirm the pull up voltage is set correctly. If the target is using a voltage not supplied by the EV2500’s LDO system, VVOD can be used to externally pull up the lines.

Table 2-4 SPI Interface
Pin Name Description
1 VSS Ground for SPI interface.
2 SPICS SPI chip select connection. This line can be pulled up to 1.2V, 1.8V, 3.3V, or 5V by the EV2500, or any voltage between 1.2V to 5V externally.
3 SPICLK SPI clock data connection. This line can be pulled up to 1.2V, 1.8V, 3.3V, or 5V by the EV2500, or any voltage between 1.2V to 5V externally.
4 SPIDO SPI data out connection. This line contains the information being sent from the EV2500 host. This line can be pulled up to 1.2V, 1.8V, 3.3V, or 5V by the EV2500, or any voltage between 1.2V to 5V externally.
5 SPIDI SPI data in connection. This line contains the information being received from the target device. This line can be pulled up to 1.2V, 1.8V, 3.3V, or 5V by the EV2500, or any voltage between 1.2V to 5V externally.
6 VVOD Optional Voltage connection. If external PU is chosen, this pin can supply the pull ups. If internal PU is chosen, please ensure no voltage is present on this line.