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PGA450Q1EVM-S User's Guide and TIDA-00151 UART
The Texas Instruments PGA450-Q1 small form-factor evaluation module (EVM) allows users to evaluate
the operation and performance of the PGA450-Q1 fully integrated system-on-chip analog front-end for
ultrasonic sensing. The small form-factor layout of this EVM is equivalent to that of an end-product form
factor, allowing users to easily integrate this PGA450-Q1-based sensor module into a real system without
the need for additional prototypes.
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Software
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Schematic, Bill of Materials, and Layout
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References
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EEPROM Registers Programmed Correctly
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Component Placement - Bottom Overview
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Layout - Bottom
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Terminal Descriptors
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TI GER to PGA450Q1EVM-S Connections
3
EEPROM Register Map Values
4
Example of Checksum Calculation
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BOM
Trademarks
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SLDU019B - December 2015 - Revised March 2016
Submit Documentation Feedback
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PGA450Q1EVM-S User's Guide and TIDA-00151 UART Demo Instructional
Copyright © 2015-2016, Texas Instruments Incorporated
SLDU019B - December 2015 - Revised March 2016
Demo Instructional
Contents
List of Figures
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List of Tables
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User's Guide
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Table of Contents
Related Manuals for Texas Instruments PGA450Q1EVM-S
Summary of Contents for Texas Instruments PGA450Q1EVM-S
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Page 1: Table Of Contents
PGA450Q1EVM-S User's Guide and TIDA-00151 UART Demo Instructional The Texas Instruments PGA450-Q1 small form-factor evaluation module (EVM) allows users to evaluate the operation and performance of the PGA450-Q1 fully integrated system-on-chip analog front-end for ultrasonic sensing. The small form-factor layout of this EVM is equivalent to that of an end-product form factor, allowing users to easily integrate this PGA450-Q1-based sensor module into a real system without the need for additional prototypes. -
Page 2: Introduction
PGA450Q1EVM before transitioning to evaluation with the PGA450Q1EVM-S. Setup and Operation This section describes how to setup and configure the PGA450Q1EVM-S for basic operation. A detailed description of connectors, jumpers, and test points are provided in addition to the typical operation setup of the EVM. - Page 3 The TI GER (Texas Instruments general equipment resource) USB interface board is included with the purchase of the PGA450Q1EVM, and cannot be purchased separately. Purchase the PGA450Q1EVM or develop a custom USB interface tool to program or evaluate the PGA450-Q1 device on the PGA450Q1EVM-S platform.
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Page 4: Ti Ger Board Spi And Uart Connections
DEVRAM has been programmed, because the DEVRAM memory will clear when the PGA450-Q1 device is power cycled. PGA450Q1EVM-S User's Guide and TIDA-00151 UART Demo Instructional SLDU019B – December 2015 – Revised March 2016 Submit Documentation Feedback... - Page 5 Setup and Operation www.ti.com 2.2.2 Programming the PGA450-Q1 EEPROM The PGA450Q1EVM-S is preloaded with the EEPROM values listed in Table 2. These instructions are provided in the event that the user prefers to modify the EEPROM using the PGA450Q1EVM GUI, rather than the corresponding UART command.
- Page 6 (2) The Reload EEPROM button copies the EEPROM memory into the EEPROM cache. The values in the GUI are then updated. Figure 3. EEPROM Registers Programmed Correctly PGA450Q1EVM-S User's Guide and TIDA-00151 UART Demo Instructional SLDU019B – December 2015 – Revised March 2016 Submit Documentation Feedback...
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Page 7: Direct Ti Ger Control Button
TX box. Each byte must be typed on a separate row. Figure 6. User Submitted Data Packet in TX Box and Valid RX Response SLDU019B – December 2015 – Revised March 2016 PGA450Q1EVM-S User's Guide and TIDA-00151 UART Demo Instructional Submit Documentation Feedback Copyright © 2015–2016, Texas Instruments Incorporated... -
Page 8: No Response In The Rx Box
RX box because, in this example, command0 was sent to sensor address 0x02. Figure 7. No Response in the RX Box PGA450Q1EVM-S User's Guide and TIDA-00151 UART Demo Instructional SLDU019B – December 2015 – Revised March 2016 Submit Documentation Feedback Copyright ©... - Page 9 [2] 0x41: 4 = command 4. 1 = sensor address set in EEPROM address 0x31 • [3] 0x00: ignored but required checksum SLDU019B – December 2015 – Revised March 2016 PGA450Q1EVM-S User's Guide and TIDA-00151 UART Demo Instructional Submit Documentation Feedback Copyright © 2015–2016, Texas Instruments Incorporated...
- Page 10 [3] 0x00: ignored but required checksum Software To modify the source-code made available through the PGA450Q1EVM-S firmware installer, download the Keil C51 Development Tool for all 8051 devices, which includes the uVision IDE required to open and edit the PGA450-Q1 project file. Keil products use a license management system. Without a current license, the product runs as an evaluation or lite edition which has a few limitations.
- Page 11 The FIFO RAM data can be read over SPI, allowing an external microprocessor to process the data. To provide a quick evaluation of the performance of the PGA450-Q1 device using the PGA450Q1EVM-S and GUI without having to develop sophisticated 8051 μP software, the GUI provides an intuitive interface tab, the Evaluation Tab, that collects all required information regarding the transducer drive and receive.
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Page 12: Pga450Q1Evm-S Schematic
UART & DACO Green Orange XOUT PGA450TPWRQ1 LED_Ca 2.7k GND_Sensor Ground Plane Connections Figure 8. PGA450Q1EVM-S Schematic PGA450Q1EVM-S User's Guide and TIDA-00151 UART Demo Instructional SLDU019B – December 2015 – Revised March 2016 Submit Documentation Feedback Copyright © 2015–2016, Texas Instruments Incorporated... - Page 13 Figure 11 Figure 12 show the top and bottom views of the board layout. SLDU019B – December 2015 – Revised March 2016 PGA450Q1EVM-S User's Guide and TIDA-00151 UART Demo Instructional Submit Documentation Feedback Copyright © 2015–2016, Texas Instruments Incorporated...
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Page 14: Component Placement - Top Overview
Figure 10. Component Placement – Bottom Overview Figure 11. Layout – Top Figure 12. Layout – Bottom PGA450Q1EVM-S User's Guide and TIDA-00151 UART Demo Instructional SLDU019B – December 2015 – Revised March 2016 Submit Documentation Feedback Copyright © 2015–2016, Texas Instruments Incorporated... - Page 15 For additional reference, see the following documents from TI: • PGA450-Q1 Ultrasonic-Sensor Signal Conditioner (SLDS185) • PGA450Q1EVM User’s Guide (SLDU007) SLDU019B – December 2015 – Revised March 2016 PGA450Q1EVM-S User's Guide and TIDA-00151 UART Demo Instructional Submit Documentation Feedback Copyright © 2015–2016, Texas Instruments Incorporated...
- Page 16 ..........• Added the 0x00 value for Command 1 in the UART Command Listing section ................. • Changed the PGA450Q1EVM-S Schematic image ...................... • Added H1 to the Bill of Materials Revision History SLDU019B – December 2015 – Revised March 2016 Submit Documentation Feedback Copyright ©...
- Page 17 IMPORTANT NOTICE FOR TI DESIGN INFORMATION AND RESOURCES Texas Instruments Incorporated (‘TI”) technical, application or other design advice, services or information, including, but not limited to, reference designs and materials relating to evaluation modules, (collectively, “TI Resources”) are intended to assist designers who are developing applications that incorporate TI products;...
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