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UBX-21008123 - R02 

 

 

C1-Public 

 

www.u-blox.com

 

 

 

 

EVK-ANNA-B4 

Evaluation kit for ANNA-B4 modules 

User guide 
 

 

 

 

Abstract

 

This document describes how to set up the EVK-ANNA-B4 evaluation kit to evaluate ANNA-B4 
series standalone Bluetooth

®

  5.1 low energy modules. It also describes the different options for 

debugging and testing the development capabilities supported by the evaluation board. 

 

Summary of Contents for EVK-ANNA-B4

Page 1: ...User guide Abstract This document describes how to set up the EVK ANNA B4 evaluation kit to evaluate ANNA B4 series standalone Bluetooth 5 1 low energy modules It also describes the different options...

Page 2: ...l u blox or third parties may hold intellectual property rights in the products names logos and designs included in this document Copying reproduction modification or disclosure to third parties of th...

Page 3: ...ports 12 3 2 Starting up 12 EVK ANNA B412 12 EVK ANNA B402 12 3 3 Measuring current consumption 13 Using an amperemeter 13 Using a voltmeter 13 Using an external power supply or power analyzer 14 4 B...

Page 4: ...e 4 of 42 C1 Public EEPROM support 31 5 4 Additional Interfaces 31 Extra USB to UART interface 33 CPU trace interface 33 Appendix 34 A Schematics 34 B Assembly drawings 38 C Glossary 40 Related docume...

Page 5: ...s center software to your computer 2 Open the s center setup installer to install the software 3 Select Launch button in the installer or open the application from the Windows Start button 1 2 Install...

Page 6: ...software solutions EVK ANNA B402U includes an open CPU ANNA B402 module and U FL antenna connector for connecting to external antennas EVK ANNA B402C includes an open CPU ANNA B402 module with an inte...

Page 7: ...ons that can be used for rapid prototyping 2 2 Kit includes The EVK ANNA B4 evaluation kit includes the following ANNA B4 evaluation board Two 2 4 GHz antennas with U FL connector only for EVK ANNA B4...

Page 8: ...VK variants EVK ANNA B402 with ANNA B402 Open CPU modules EVK ANNA B412 with ANNA B412 modules with u connectXpress software o Full UART to USB converter with a virtual COM port for control of the ext...

Page 9: ...O Dig Interface GPIO Dig Interface UART GPIO Dig Int UART SW2 Raspberry Pi 40 pin GPIO header 3V3 5V GND GPIO Digital Interface UART ID_SC ID_SD RPi_3 RPi_4 RPi_5 RPi_6 RPi_7 RPi_2 RPi_8 RPi_9 RPi_10...

Page 10: ...ed in the EVK ANNA B402U EVK ANNA B412U J12 Cortex Debug connector 10 pin 50 mil pitch connector used to connect external debuggers to the ANNA B4 module ANNA B4 modules support Serial Wire debug SWD...

Page 11: ...computer EVK ANNA B412 evaluation boards only EVK ANNA B412 evaluation boards are pre flashed with u connectXpress software which enables users to configure ANNA B412 modules using AT commands with u...

Page 12: ...ect Device Manager 3 2 Starting up EVK ANNA B412 3 2 1 1 u connectXpress software EVK ANNA B412 is equipped with ANNA B412 module that runs the u connectXpress software The software is preinstalled on...

Page 13: ...identify your chosen power configuration and find out what ANNA signals must subsequently be isolated The J22 jumper pins 1 and 3 must be removed to measure the current consumption Figure 4 shows som...

Page 14: ...the ANNA module is connected to an EVK peripheral The leakage is typically in the order of one to several hundred nano amps To reduce leakage current use a second external power channel to supply the...

Page 15: ...erent power nets on the evaluation board Figure 6 provides an overview of the available power sources and targets Figure 7 shows the location of the power configuration pin headers Check the jumper po...

Page 16: ...converter Battery Battery with protection diode MCU PC communication HAT Raspberry Pi expansion board ANNA module power Board I O power Level shifters LEDs etc 3V3 VBAT_DIODE VBAT VDD_MCU 3V3_PI VDD_...

Page 17: ...ed when a power source is connected 8 VCC_ANNA Connects to J22 pin 3 from which it can be connected to the module supply pin or somewhere else 9 3V3 Regulated 3 3 V net This net is supplied by the boa...

Page 18: ...he selected source for the VCC_ANNA net 2 4 Powers up peripherals directly connected to ANNA such as LEDs and external memory from the module voltage supply Table 3 Jumper positions for default power...

Page 19: ...be switched to the default 3 3 V configuration To avoid damage to the battery do not connect pins 5 and 6 and pins 7 and 8 on J7 at the same time the battery is connected Figure 9 Jumper positions fo...

Page 20: ...eration with a protection diode dashed lines show optional jumpers Connector Add jumper to pins Description J7 3 4 Selects the diode protected battery as a source for the VCC_ANNA net 9 10 Optional Po...

Page 21: ...n circuits of this device This might give false readings when measuring current consumption Isolation can be achieved by removing ANNA signal jumpers See also Disconnecting ANNA signals from board per...

Page 22: ...umper to pins Description J7 1 2 Connects the 3V3_PI net to the regulated 3 3 V supply 7 8 Selects the board regulated 3 3 V net as a source for the VCC_ANNA net 9 10 Optional Powers up the Interface...

Page 23: ...e MCU s reset line 3 SWDIO SWD data signal 4 SWDIO_I Interface MCU SWD data signal used to program debug the ANNA module 5 SWDCLK SWD clock signal 6 SWDCLK_I Interface MCU SWD data signal used to prog...

Page 24: ...output 6 UART_RTS_I UART to USB RTS signal 7 IO_37 UART_CTS ANNA B402 GPIO signal ANNA B412 UART CTS input 8 UART_CTS_I UART to USB CTS signal 9 IO_19 UART_TXD ANNA B402 GPIO signal ANNA B412 UART TX...

Page 25: ...d activity lit when the Interface MCU is connected through USB DS4 Interface MCU LED Error LED DS5 DTR LED Connected to the ANNA UART_DTR IO_27 pin on pin header connector J9 DS6 DSR LED Connected to...

Page 26: ...name nRF52 pin Alternate functions and notes J1 1 N C Not Connected Not connected 2 IOREF I O reference voltage level Selectable by user to 1 7 3 6 V VDD_IO See also Interfaces and peripherals 3 RESE...

Page 27: ...ANNA B41 2 D1 TX Analog I O UART TX UART_TXD IO_19 P0 03 Analog function capable GPIO UART_TXD signal on ANNA B41 3 D2 Digital I O UART_CTS IO_37 P0 22 UART_CTS signal on ANNA B41 4 D3 Digital I O UAR...

Page 28: ...I2C signals SCL and SDA are connected to pins A4 and A5 and to the SCL and SDA pins in the top right hand corner Since these pins will be shorted together this might cause problems when they are conne...

Page 29: ...14 1 3 3 V 3 3 V supply pin 3V3_PI Not connected by default see also Powering options 2 5 V 5 V supply pin 5V Cannot be used as supply input Supplied by USB VBUS and protected from back powering 3 GPI...

Page 30: ...O IO_22 P0 09 Can be connected to IO_22 via 0 resistor Resistor not mounted by default IO_22 is connected to NFC antenna by default 22 GPIO25 Digital I O IO_23 P0 10 Can be connected to IO_23 via 0 re...

Page 31: ...can also be made in the software By default the EVK ANNA B4 is configured to simulate a HAT with GPIO14 connected to the ANNA UART_RXD pin and GPIO15 connected to the ANNA UART_TXD pin EEPROM support...

Page 32: ...memory chip 2 SWDIO SWDIO Serial Wire Debug data I O signal 3 GND GND Ground 4 SWDCLK SWDCLK Serial Wire Debug clock signal 5 GND GND Ground 6 TRACE_DATA0 SWO IO_16 P1 00 Serial trace data signal Par...

Page 33: ...thing but is routed as a 4 pin UART interface to the pin header J20 This interface could be connected to a secondary UART interface on the ANNA B4 module or to a UART interface on an Arduino shield fo...

Page 34: ...UBX 21008123 R02 Appendix Page 34 of 42 C1 Public Appendix A Schematics...

Page 35: ...UBX 21008123 R02 Appendix Page 35 of 42 C1 Public Figure 18 ANNA B4 module schematic Figure 19 ANNA B4 hub FTDI and flash schematic...

Page 36: ...UBX 21008123 R02 Appendix Page 36 of 42 C1 Public Figure 20 ANNA B4 headers and buttons schematic For the first prototype build marked PT1 EVK ANNA B3 schematic can be used as a reference...

Page 37: ...UBX 21008123 R02 Appendix Page 37 of 42 C1 Public Pages 2 and 6 of the schematic are intentionally omitted...

Page 38: ...UBX 21008123 R02 Appendix Page 38 of 42 C1 Public B Assembly drawings Figure 22 ANNA B4 assembly drawing top view...

Page 39: ...UBX 21008123 R02 Appendix Page 39 of 42 C1 Public Figure 23 ANNA B4 assembly drawing bottom view...

Page 40: ...HAT Hardware Attached on Top LED Light Emitting Diode MCU Micro controller unit MSD Mass storage device NFC Near Field Communication U FL Coaxial RF connector USB Universal serial bus RTS Request To s...

Page 41: ...nnectXpress short range AT commands manual UBX 14044127 7 SEGGER J Link software https www segger com jlink software html 8 u connectXpress user guide UBX 16024251 9 https github com u blox u blox sho...

Page 42: ...China Beijing Phone 86 10 68 133 545 E mail info_cn u blox com Support support_cn u blox com Regional Office China Chongqing Phone 86 23 6815 1588 E mail info_cn u blox com Support support_cn u blox...

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