SLAU888 may   2023 AFE882H1

 

  1.   AFE882H1 Evaluation Module
  2.   Trademarks
  3. 1Overview
    1. 1.1 Kit Contents
    2. 1.2 Related Documentation From Texas Instruments
  4. 2System Setup
    1. 2.1 Software Setup
    2. 2.2 Hardware Setup
      1. 2.2.1 Electrostatic Discharge Caution
      2. 2.2.2 Power Configuration and Jumper Settings
      3. 2.2.3 Connecting the Hardware
        1. 2.2.3.1 Power Configuration
        2. 2.2.3.2 External SPI and UART Controllers
  5. 3Detailed Description
    1. 3.1 Hardware Description
      1. 3.1.1 Theory of Operation
      2. 3.1.2 Signal Definitions
      3. 3.1.3 XTR305 Configuration
    2. 3.2 Software Description
      1. 3.2.1 Starting the Software
      2. 3.2.2 Software Features
        1. 3.2.2.1 High Level Configuration Page
        2. 3.2.2.2 AFE882H1 Register Page
  6. 4Schematics, PCB Layout, and Bill of Materials
    1. 4.1 Board Schematic
    2. 4.2 PCB Components Layout
    3. 4.3 Bill of Materials

3.1.2 Signal Definitions

The EVM board provides access to the digital AFE882H1 pins through headers J9 and J15. Table 3-1 lists the J9 pin definitions and Table 3-2 lists the J15 pin definitions.

Table 3-1 AFE882H1 Header J9 Pin Definitions
Pin Number Signal Description
1 SCLK AFE882H1 SPI serial clock input
3 PICO AFE882H1 SDI (serial data input), optional GPIO5
5 POCI AFE882H1 SDO (serial data output), optional GPIO4
7 CS AFE882H1 chip select input, optional GPIO6
9 TXD AFE882H1 UART output, optional GPIO2
11 RXD AFE882H1 UART input, optional GPIO3
13 RTS AFE882H1 HART request to send
2, 4, 6, 8, 10, 12, 14 GND Ground
Table 3-2 AFE882H1 Header J15 Pin Definitions
Pin Number Signal Description
1 CD AFE882H1 HART carrier detect, optional GPIO1
3 RESET AFE882H1 device reset
5 ALARM AFE882H1 alarm signal
2, 4, 6 GND Ground

The EVM board also provides access to the digital XTR305 pins through headers J16. Table 3-3 lists the pin definitions for J16.

Table 3-3 XTR305 Header J16 Pin Definitions
Pin Number Signal Description
1 XTR_OD XTR305 output disable
3 XTR_M2 XTR305 voltage and current select
5 XTR_EFCM Error flag for common mode over range, active low
7 XTR_EFLD Error flag for load error, active low
9 XTR_EFOT Error flag for overtemperature, active low
2, 4, 6, 8, 10 GND Ground