AMW106 Evaluation Guide AMW106 Evaluation Guide AMW106-E03 `Moray' ARG-MW106E-101R * AMW106 Evaluation Guide (c)2014-2015 ACKme Networks September 1, 2015 AMW106 Evaluation Guide Contents 1 Introduction ........................................................... 1 2 Feature Identification ............................................ 2 2.1 3 AMW106-E03 `Moray' .................................... 2 Using WiConnect.................................................... 4 3.1 Getting Help.................................................... 4 3.2 System Indicator LEDs .................................... 5 3.3 Scanning for Wi-Fi Networks .......................... 5 3.4 Joining a Wi-Fi Network .................................. 5 Web Setup .............................................. 5 Script Setup............................................. 6 Manual Setup.......................................... 7 Wireless Protected Setup (WPS) ............ 8 3.5 Filesystem ....................................................... 8 3.6 Saving Custom Configurations ........................ 9 3.7 UDP / TCP / TLS Clients ................................... 9 3.8 HTTP / HTTPS Clients ....................................10 3.9 Using GPIOs ..................................................10 3.10 Factory Reset ................................................11 3.11 Save & Reboot ..............................................11 3.12 Command vs. Stream Mode .........................12 Command Mode ...................................12 Stream Mode ........................................13 3.13 4 Want more? ..................................................13 Measuring Power Usage ......................................13 4.1 Measuring Coarse Current Consumption .....13 4.2 Measuring Sleep Current ..............................13 5 Ordering Information ...........................................14 6 Revision History & Glossary .................................15 6.1 Revision History ............................................15 6.2 Glossary ........................................................15 APPENDIX A - Configuring a Terminal Application APPENDIX B - Evaluation Board Schematics ARG-MW106E-101R * AMW106 Evaluation Guide (c)2014-2015 ACKme Networks http://ack.me Page | ii September 1, 2015 AMW106 Evaluation Guide Introduction, Section 1 1 Introduction The family of AMWx06 `Numbat' modules are fully certified small form factor, low power Wi-Fi networking modules perfectly suited to deeply embedded applications requiring medium/high data throughput in medium to high volume. The Sensors.com WiConnect Operating System is pre-installed on all AMWx06 modules. WiConnect provides products with an intuitive, reliable and secure Wi-Fi networking connection featuring an embedded TCP/IP networking stack that includes a webserver with REST & websockets, a fully customizable javascript-based web application and SSL/TLS security. Evaluation of WiConnect and the AMWx06 module is available with the AMW106-E03 `Moray' evaluation board. The evaluation board is shown in Figure 1 and its features are shown in Table 1. This document describes how to use the Moray evaluation board populated with an AMW106 module, usage is however identical whether the board is populated with an AMW006 module or an AMW106 module. Figure 1. AMW106 Moray Evaluation Board AMW106-E03 `Moray' (with AMW106 surface mount module) Table 1. AMW106 Evaluation Board Features Feature AMW106-E03 `Moray' Product Number AMW106-E03 Module style Surface mount Serial Interface USB-UART Power supply from USB User LEDs 2+3 User Buttons 2 Reset Button Yes GPIO Expansion Headers GPIO Isolation Header ARG-MW106E-101R * AMW106 Evaluation Guide (c)2014-2015 ACKme Networks http://ack.me 35-pin 2x15-pin Page | 1 September 1, 2015 AMW106 Evaluation Guide Feature Identification, Section 2 2 2.1 Feature Identification AMW106-E03 `Moray' The Moray evaluation board comes complete with a surface mount AMW106 `Numbat' module. Each pin on the Numbat module is connected to the expansion header. Schematics for the board are provided in Appendix B. Figure 2. AMW106-E03 Features Antenna Connections AMW106 Module Ground Hook Expansion Header H2 Expansion Header H3 UART Header H5 System Indicator LEDs* GPIO Expansion Header H8 H8 Isolation Header GPIO Thermistor H9 USB UART Tx LED USB UART Rx LED User LED 1* User LED 2* Power LED USB Micro Connector Provides power to the board & USB-Serial UART to computer Power measurement Reset Button User Button 2* Used to reset the AMW106 module User Button 1* * User configurable Table 2. AMW106-E03 GPIO Expansion Header Connections AMW106 H3 AMW106 H8 AMW106 H8 AMW106 H2 GND 2 GND 12 UART0_TX 20 GND 27 VDD_DUT 3 GPIO 5 13 GPIO 13 21 GPIO 18 28 GPIO 0 4 GPIO 6 14 GPIO 14 22 GPIO 19 29 GPIO 1 5 GPIO 7 15 GPIO 15 23 GPIO 20 30 GPIO 2 6 GPIO 8 16 GPIO 16 24 GPIO 21 31 GPIO 3 7 UART0_RTS 17 GPIO 17 25 GPIO 22 32 GPIO 4 8 UART0_CTS 18 GND 26 GPIO 23 33 OSC_32K 9 UART0_RX 19 RESET_N 34 VDD_DUT* 10 VDD_DUT* 35 GND 11 GND 36 *Note: You can safely draw up to 100mA from the VDD expansion header pins ARG-MW106E-101R * AMW106 Evaluation Guide (c)2014-2015 ACKme Networks http://ack.me Page | 2 September 1, 2015 AMW106 Evaluation Guide Using WiConnect, Section 3 Table 3. AMW106-E03 GPIO Isolation Header H9 AMW106 H9 H9 AMW106 RESET_N 1 2 RESET_BTN GPIO 23 3 4 LED_G GPIO 22 5 6 BUTTON_2 GPIO 20 7 8 THERM GPIO 18 9 10 LED_Y GPIO 16 11 12 LED_1 GPIO 15 13 14 I2C_SDA GPIO 14 15 16 I2C_SCL GPIO 13 17 18 LED_2 GPIO 12 19 20 UART0_TX GPIO 11 21 22 UART0_RX GPIO 10 23 24 UART0_CTS GPIO 9 25 26 UART0_RTS GPIO 5 27 28 LED_R GPIO 0 29 30 BUTTON_1 By removing all jumpers from the GPIO isolation header, all peripherals may be completely disconnected from module GPIOs. This provides several benefits including the option to connect custom peripherals without interference from on-board peripherals, and simplification of power consumption measurements described in the Measuring Power Usage section. ARG-MW106E-101R * AMW106 Evaluation Guide (c)2014-2015 ACKme Networks http://ack.me Page | 3 September 1, 2015 AMW106 Evaluation Guide Using WiConnect, Section 3 3 Using WiConnect To get started with WiConnect, plug the AMW106 evaluation board into the USB port of the computer and open a terminal emulator as described in Appendix A. The USB cable provides the evaluation board with power and a serial UART connection to the computer. With the board connected to the computer, verify the power LED is illuminated. If the power LED is NOT illuminated, try re-plugging the USB cable, or try a different USB cable. USB Serial Computer with Terminal Emulator Moray Evaluation Board Note! Be sure to use a quality USB cable. Inferior cables may result in reduced or intermittent operation of the evaluation board. 3.1 Getting Help WiConnect provides extensive help for each command and variable. To obtain a list of help options, type the help command. > help The following help options help all -> Print help commands -> Print help variables -> Print help <command> -> Print help <variable> -> Print are available ... a list of all Commands and Variables a list of Commands a list of Variables help for a specific Command help for a specific Variable Additional help is available online at http://wiconnect.ack.me To obtain help for a particular command or variable, type help <command> or help <variable>. To obtain help for the wlan_scan variable, type help wlan_scan. > help wlan_scan Usage : wlan_scan [-v] [<channel> [ssid]] Shortcut: scan Brief : Initiate a Wi-Fi scan and return results; optionally specify a channel and AP SSID to scan for. For verbose scans, -v must be the first argument ARG-MW106E-101R * AMW106 Evaluation Guide (c)2014-2015 ACKme Networks http://ack.me Page | 4 September 1, 2015 AMW106 Evaluation Guide Using WiConnect, Section 3 3.2 System Indicator LEDs The Moray evaluation board comes with three system indicator LEDs and two user LEDs. The LED functions are configurable, using the WiConnect peripheral commands and variables. See http://wiconnect.ack.me for more details., in particular the variables system.indicator.gpio and system.indicator.state. By default the system indicator LEDs are configured as follows: LED Red Function Soft AP Indicator Yellow Network Indicator Green WLAN indicator Behavior Off Fast blink Medium blink Slow blink Fast blink Medium blink Slow blink Off Fast blink Medium blink Slow blink Soft AP off Soft AP error Soft AP active Client connected No IP address DHCP in progress DHCP successful, IP address obtained Wi-Fi off Error Connecting to AP Joined to AP Blink rates are as follows: Fast blink: 4Hz, Medium blink: 1Hz, Slow blink: 0.5 Hz 3.3 Scanning for Wi-Fi Networks To scan for Wi-Fi networks in range, use the wlan_scan command. Each AP in range is listed on a separate line. > wlan_scan -v !3 networks found ! # Ch RSSI MAC BSSID Rate Security Mode Len Network (SSID) # 0 06 -27 84:1B:5E:29:9D:F7 450.0 WPA2-Mixed Inf 17 YOUR_NETWORK_NAME # 1 11 -73 2C:B0:5D:31:6F:6A 300.0 WPA2-AES Inf 6 button # 2 11 -73 EC:1A:59:36:5B:6C 144.4 WPA2-Mixed Inf 5 ACKme 3.4 Joining a Wi-Fi Network Several methods are available to configure and join the AMW106 module to a Wi-Fi network. Web Setup WiConnect provides the option to use a web browser running on a network client (such as a smartphone, tablet or computer) to select the remote Wi-Fi network the AMW106 module should join, and to enter a password for the remote network. When web setup is used, it is helpful to think of the network client as the keyboard and display for the module as shown in Figure 3. ARG-MW106E-101R * AMW106 Evaluation Guide (c)2014-2015 ACKme Networks http://ack.me Page | 5 September 1, 2015 AMW106 Evaluation Guide Using WiConnect, Section 3 Figure 3. Web setup using a network client Local Network Name: WiConnect-### Password: password Remote Network Name: YOUR_NETWORK_NAME To start web setup mode, enter the command setup web. WiConnect starts the local network and web server as indicated by the final message: In progress. > setup web [Disassociated] IPv4 address: 10.10.10.1 Web setup started with the SSID: WiConnect-F1A In progress Open the Wi-Fi settings on your smartphone, tablet or computer and join the network called WiConnect-### (where ### are the last 3 digits of the Wi-Fi module MAC address). The password for the network is simply: password. The local network name and password, and the web address may be customised to suit your needs, see the online WiConnect Reference Manual for further information. After joining the local network, open a web browser on the network client and go to setup.com. The WiConnect web page appears (see Figure 3), and a scan begins for Wi-Fi access points in range. Select the remote network you wish to join, enter the network password then select Save & Exit and follow the prompts. Once the settings are successfully saved, WiConnect prints Web Setup Mode exited to the terminal. Check that the settings were successfully saved using get wlan.ssid and get wlan.passkey. Web Setup Mode exited > get wlan.ssid YOUR_NETWORK_NAME > get wlan.passkey YOUR_NETWORK_PASSWORD Script Setup If you prefer instead to enter configuration details for the Wi-Fi network, WiConnect provides a default setup script to step you through the process. The setup script is provided as a file called default_setup.script on the WiConnect file system. The setup script may be customised as required. > setup cmd > Enter Wi-Fi network name: set wlan.ssid YOUR_NETWORK_NAME Set OK ARG-MW106E-101R * AMW106 Evaluation Guide (c)2014-2015 ACKme Networks http://ack.me Page | 6 September 1, 2015 AMW106 Evaluation Guide Using WiConnect, Section 3 > Enter Wi-Fi network password: set wlan.passkey YOUR_NETWORK_PASSWORD Set OK > set wlan.auto_join.enabled true Set OK > Saving settings save Saved Success > network_up [2014-05-17 | 11:48:31: Associating to YOUR_NETWORK_NAME] In progress > Security type from probe: WPA2-Mixed Obtaining IPv4 address via DHCP IPv4 address: 192.168.0.31 [2014-05-17 | 11:48:41: Associated] > Exiting Cmd Setup Mode Manual Setup It is straightforward to manually enter the name and password for the network using the wlan.ssid and wlan.passkey variables too. Be sure to save afterwards, or the values will be lost when the module reboots. Any subsequent command requiring network access, such as an ICMP (Internet Control Message Protocol) ping, automatically results in the module attempting to join the network. > set wlan.ssid YOUR_NETWORK_NAME Set OK > set wlan.passkey YOUR_NETWORK_PASSWORD Set OK > save Saved Success > ping -g [Associating to YOUR_NETWORK_NAME] Security type from probe: WPA2-Mixed Obtaining IPv4 address via DHCP IPv4 address: 192.168.0.31 [Associated] Ping reply in 25ms The network up -s command provides a shortcut to the process, by scanning for wireless Access Points, offering a choice of networks to join and automatically saving the ssid and passkey: > network_up Scanning for ! 3 networks ! # Ch RSSI # 0 1 -40 # 1 1 -32 # 2 6 -77 -s networks... found MAC (BSSID) 4C:55:CC:10:2E:50 9C:D6:43:28:50:A0 30:85:A9:E7:9C:B0 Network (SSID) ABC myAP DEF Type the number # that matches your Network: 1 Type the password for your Network : secretpassword ARG-MW106E-101R * AMW106 Evaluation Guide (c)2014-2015 ACKme Networks http://ack.me Page | 7 September 1, 2015 Using WiConnect, Section 3 AMW106 Evaluation Guide [Associating to myAP] > In progress > Security type from probe: WPA2-AES Obtaining IPv4 address via DHCP IPv4 address: 10.5.6.94 [Associated] Wireless Protected Setup (WPS) WPS is a Wi-Fi provisioning method originally intended to simplify the process of connecting Wi-Fi clients to Wi-Fi Access Points. WPS offers both a push-button and PIN entry method for configuration. In reality, WPS push-button (as opposed to PIN) is the only method that has gained some level of adoption in the industry, however WPS naturally only works when the Wi-Fi AP supports WPS. Many AP vendors choose not to test and certify APs with the Wi-Fi Alliance, and the lack of a standard WPS logo next to the WPS button on an AP often means many users are unaware that WPS is available. The potential for equipment incompatibility and added user confusion mean it is unwise to rely on WPS as the primary method of Wi-Fi provisioning in the real world. Incompatibility and confusion aside, WiConnect provides full support for WPS1.0 & WPS2.0 and the underlying WPS engine has passed Wi-Fi certification. To use WPS in push-button mode, simply enter the wps command into WiConnect, then press the WPS button on your router (if the router supports WPS, and it is enabled, and you can find the button), and wait for the magic to happen. 3.5 Filesystem ACKme Wi-Fi modules running WiConnect include a serial flash memory and a filesystem that provides users with the ability to read and write files. A quick example showing how to create, manipulate then delete a file is provided below. > file_create hello.txt 13 my hello data File created Success > ls ! # Size Version Filename # 0 1853 2.0.0 /favicon.ico.gz # 1 18067 2.0.0 /setup/images.png # 2 10525 2.0.0 /setup/index.css.gz # 3 10143 2.0.0 /setup/index.html # 4 39233 2.0.0 /setup/index.js.gz # 5 32297 2.0.0 command_help.csv # 6 135 2.0.0 default_setup.script # 7 1236 2.0.0 geotrust_ca.pem # 8 279 1.0.0 gpio_config_init.csv # 9 13 1.0.0 hello.txt # 10 212736 2.0.0 upgrade_app.exe # 11 176920 2.0.0 wiconnect.exe # 12 203261 5.26.230 wifi_fw.bin > file_open hello.txt [Opened: 0] 0 > stream_read 0 5 my he ARG-MW106E-101R * AMW106 Evaluation Guide (c)2014-2015 ACKme Networks http://ack.me Page | 8 September 1, 2015 Using WiConnect, Section 3 AMW106 Evaluation Guide > stream_read 0 50 llo data [Closed: 0] > file_delete hello.txt File deleted Success Note! When reading the contents of a file using stream_read, the file is automatically closed if the end of file is reached. 3.6 Saving Custom Configurations All available WiConnect variables may be saved to a file as a custom configuration. Saved configuration may then be loaded at a later date. This feature is particularly useful for saving configuration variables prior to an over-the-air (OTA) upgrade, and then restoring the configuration afterwards. > save my_config.csv Success > load my_config.csv Configuration successfully loaded 3.7 UDP / TCP / TLS Clients To open a UDP, TCP or secure TLS connection to a remote server, use the udp_client, tcp_client or tls_client commands. WiConnect responds with a stream handle if the connection is opened successfully. For TLS connections, WiConnect provides a default TLS root certificate signed by GeoTrust (located on the WiConnect file system), however this certificate may not work with some TLS servers. A custom certificate may be provided as an option to the tls_client command if required. > udp_client test.ack.me 50019 [Opening: test.ack.me:50019] Resolving host: test.ack.me Connecting: 107.170.222.80:50019 [2014-05-19 | 11:12:22: Opened: 0] 0 > tcp_client test.ack.me 50019 Resolving host: test.ack.me [2014-05-19 | 11:12:38: Opening: test.ack.me:50019] Connecting (TCP): 107.170.222.80:50019 [2014-05-19 | 11:12:39: Opened: 1] 1 > tls_client google.com 443 Resolving host: google.com [2014-05-19 | 11:12:49: Opening: google.com:443] Connecting (TLS): 74.125.237.174:443 [2014-05-19 | 11:12:50: Opened: 2] 2 Now try writing a character to the UDP or TCP stream that was opened in the examples above. The server at test.ack.me:50019 responds with a character pattern using the Chargen (Character Generator) protocol. ARG-MW106E-101R * AMW106 Evaluation Guide (c)2014-2015 ACKme Networks http://ack.me Page | 9 September 1, 2015 Using WiConnect, Section 3 AMW106 Evaluation Guide > stream_write 0 5 hello Success > stream_read 0 50 !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQR Note! WiConnect supports TCP, UDP and TLS server modes too! For more information, please refer to the WiConnect Reference Guide. 3.8 HTTP / HTTPS Clients To open an HTTP or secure HTTPS connection to a remote server, read the first 300 bytes of the response then close the connection, use the http_get, stream_read and stream_close commands. WiConnect responds with a stream handle if the connection is opened successfully. > http_get https://www.google.com [2014-05-19 | 11:14:31: Opening: https://www.google.com] Request GET / Connecting (HTTP): www.google.com:443 Starting TLS [2014-05-19 | 11:14:31: Opened: 0] HTTP response: 302 Redirected to https://www.google.com.au/?gfe_rd=cr&ei=l-d5U9m2J6GN8QfexoHYCg Request GET /?gfe_rd=cr&ei=l-d5U9m2J6GN8QfexoHYCg Connecting (HTTP): www.google.com.au:443 Starting TLS HTTP response: 200 Status: 200 0 > stream_read 0 300 <!doctype html><html itemscope="" itemtype="http://schema.org/WebPage" lang="enAU"><head><meta content="/images/google_favicon_128.png" itemprop="image"><title>Google</title><script>(function(){ window.google={kEI:"mOd5U4eZAYTVkAXF2oDwBA",getEI:function(a){for(var b;a&&(!a.getAttribute||!(b=a.getAt > stream_close 0 [2014-05-19 | 11:14:47: Closed: 0] Success > 3.9 Using GPIOs In WiConnect, a GPIO may have two functions: a standard IO function or an alternate function (such as a system indicator, status GPIO or control GPIO). When a GPIO is configured with an alternate function, the standard IO function is NOT available and the gpio_dir, gpio_set, and gpio_get commands are disabled for that GPIO. Before a GPIO can be used, it is necessary to first check whether the GPIO is being used for an alternate function, or is already in use as a standard GPIO (for another purpose). If the GPIO is in use, it must first be freed up by setting the direction of the GPIO to none using the gpio_dir command (standard IO) or by disabling the alternate function. The example below demonstrates how to control GPIO 23 on the AMW106 module. GPIO 23 is unassigned after factory reset. ARG-MW106E-101R * AMW106 Evaluation Guide (c)2014-2015 ACKme Networks http://ack.me Page | 10 September 1, 2015 Using WiConnect, Section 3 AMW106 Evaluation Guide > gpio_dir 23 out Set OK > get gpio.usage ! # Description #13 - UART1 RX #14 - UART1 TX #17 - SPI CLK #18 - SPI MOSI #19 - SPI MISO #21 - system.indicator.network #22 - system.indicator.wlan #23 - Standard I/O > gpio_set 23 0 Set OK > gpio_set 23 1 Set OK > gpio_set 23 0 Set OK 3.10 Factory Reset The AMW106 module may be factory reset using the factory_reset command or by holding the factory reset pin (GPIO 0 on all ACKme modules) high for more than 10 seconds through a hardware reset. After a successful factory reset, all variables are set to factory defaults and the module reboots. To avoid accidental factory reset, the Wi-Fi MAC address must be provided when calling the factory_reset command. > get wlan.mac 4C:55:DC:15:02:5D > factory_reset 4C:55:DC:15:02:5D Reverting to factory default settings Setting boot app to wiconnect.exe (0) WiConnect-2.0.0.0, Built:2014-10-07 00:07:31 for AMW006.2, Board:AMW006-E03.1 [Ready] > 3.11 Save & Reboot When the value of a WiConnect variable is changed, the new value is only saved to RAM (not flash!). The value of unsaved variables is lost when the module is reset or rebooted. To save variables to non-volatile flash memory, use the save command. The following example demonstrates that failing to save the wlan.ssid prior to reboot results in the newly assigned value being lost. > get wlan.ssid > set wlan.ssid ssid_WONT_be_saved Set OK > reboot [Disassociated] Rebooting WiConnect-2.0.0.0, Built:2014-10-07 00:07:31 for AMW006.2, Board:AMW006-E03.1 [Ready] > get wlan.ssid > set wlan.ssid ssid_WILL_be_saved Set OK > save Saved Success ARG-MW106E-101R * AMW106 Evaluation Guide (c)2014-2015 ACKme Networks http://ack.me Page | 11 September 1, 2015 AMW106 Evaluation Guide Using WiConnect, Section 3 > reboot [Disassociated] Rebooting WiConnect-2.0.0.0, Built:2014-10-07 00:07:31 for AMW006.2, Board:AMW006-E03.1 [Ready] > get wlan.ssid ssid_WILL_be_saved > Note! WiConnect configures some services (such as GPIO initialization) only after reboot. It may be necessary to save and reboot the module before the new value of some variables takes effect. 3.12 Command vs. Stream Mode The WiConnect serial interface may be used in either Command Mode or Stream Mode. A brief description of each of these modes is provided in the following text. For detailed information, please refer to the WiConnect Reference Guide. Command Mode Command mode provides an asynchronous command interface that a host may use to send and receive control and data information. Command mode is typically used by a host to configure WiConnect, however it may also be used by simple hosts that need ultimate master/slave control over information sent to, and received from, the module. All preceding examples demonstrate usage of WiConnect in command mode. There are two ways to interact with WiConnect in Command mode. When operating in human friendly command mode, WiConnect provides verbose asynchronous responses that are easy for humans to read. In machine friendly command mode, verbose prints and the command prompt are disabled and a well-defined response header is returned after each command. Configuring Command Mode Command mode can be configured using the convenience variable system.cmd.mode Command Description set system.cmd.mode human Enable human friendly command mode set system.cmd.mode machine Enable machine friendly command mode Setting system.cmd.mode executes a macro that sets the value of the four variables used to switch between human and command mode. These variables, together with the human and machine mode setting, are listed in the following table. Command Human / all / 0 Set debug & informational print level set system.cmd.header_enabled 0 / 1 Disable/enable a response header set system.cmd.prompt_enabled 1 / 0 Turn on/off the user prompt on / off set system.print_level set system.cmd.echo ARG-MW106E-101R * AMW106 Evaluation Guide (c)2014-2015 ACKme Networks http://ack.me Machine Description Turn on/off character echo. In human mode, lets you see what you're typing Page | 12 September 1, 2015 Using WiConnect, Section 3 AMW106 Evaluation Guide Stream Mode Stream Mode provides a streaming interface that transparently connects a WiConnect serial interface with a network stream such as a UDP, TCP or TLS client or server. Stream mode provides a simple 1-1 connection between a physical serial interface and a network stream. Bytes or characters sent from the host to a serial interface are transparently pushed by WiConnect to a network stream via a wireless interface. Conversely, bytes or characters received by a network stream (from a remote server) via a wireless interface are transparently pushed by WiConnect to a serial interface connected to the host. A wireless serial port is a typical application that uses stream mode. 3.13 Want more? The WiConnect Reference Guide, available online at http://wiconnect.ack.me, provides detailed information about all WiConnect features, commands and variables, versions and release notes. A number of simple and more sophisticated example applications are also provided to help you get the most out of WiConnect and the AMW106 module. 4 Measuring Power Usage The AMW106 Moray evaluation board provides two features for measuring current (power) consumption. See Figure 2. AMW106-E03 Features. Measuring dynamic current consumption over a large dynamic range is quite difficult. Current consumed during the transmission of a Wi-Fi packet may be 400mA or more, and current consumed during sleep mode may be tens of microamperes or less. The dynamic range of the measurement covers nearly six orders of magnitude with microsecond switching times. Since this document is intended as a usage guide for the evaluation board, the measurement procedures provided below are described in broad terms only. 4.1 Measuring Coarse Current Consumption Lots of useful information can be gained by observing the coarse current profile of the AMWx06 module during normal operation. The Moray evaluation board includes a current measurement circuit that is perfectly suited for current measurement in the milliamp range and above. To measure the dynamic current consumption, connect an oscilloscope probe between the I=V/10 test hook and GND test hook. The current (in Amps) consumed by the AMWx06 module is calculated by dividing the measured voltage by a factor of ten. For example, if the voltage measured at the I=V/10 test hook is 1.0V, the current consumed by the module is 1/10 = 100mA. Since the module is supplied by 3.3V, the power consumed is 3.3V x 100mA = 330mW. 4.2 Measuring Sleep Current Measuring current in low power mode, in the A range, requires a different strategy. To avoid causing an excess voltage drop in the power supply, it is necessary to use a two-stage approach. Connect an ammeter between the pins of the PWR LINK (H10) header and switch the ammeter to the A range. Now connect a cable between the leads of the ammeter to short out the ammeter. Apply power to the module, then issue the WiConnect sleep command to put the module into low power mode. See http://wiconnect.ack.me/apps/power_management. Now, remove the cable shorting the ammeter and measure the sleep current. ARG-MW106E-101R * AMW106 Evaluation Guide (c)2014-2015 ACKme Networks http://ack.me Page | 13 September 1, 2015 AMW106 Evaluation Guide Ordering Information, Section 4 5 Ordering Information Table 3 provides ordering information for AMW106 evaluation boards. Table 3. Ordering Information Part Number AMW106-E03 `Moray' Picture Description WiConnect development and evaluation platform for the surface-mount AMW106 module. The surface mount AMW106 module is not removable. ARG-MW106E-101R * AMW106 Evaluation Guide (c)2014-2015 ACKme Networks http://ack.me Page | 14 September 1, 2015 AMW106 Evaluation Guide Revision History & Glossary, Section 5 6 6.1 Revision History & Glossary Revision History Table 4: Document Revision History Revision Date Change Description ARG-MW006E-100R Oct 20, 2014 First release ARG-MW106E-101R Sep 1, 2015 Added system indicator LED section, updated for AMW106 6.2 Glossary In most cases, acronyms and abbreviations are defined on first use. A comprehensive list of acronyms and other terms used in ACKme Networks documents are provided on the ACKme Networks website at http://ack.me/FAQs/Glossary. ARG-MW106E-101R * AMW106 Evaluation Guide (c)2014-2015 ACKme Networks http://ack.me Page | 15 September 1, 2015 Appendix A - Configuring a Terminal Emulator AMW106 Evaluation Guide APPENDIX A - Configuring a Terminal Application The following instructions describe how to obtain and install a serial terminal application for use on computers running a Windows(R) or OS X operations system. ACKme recommends using Tera Term for Windows(R) systems and CoolTerm for OS X systems, however other equivalent applications may work equally well. Plug the evaluation board into the computer using a USB cable before continuing. Verify USB-Serial Driver Installation The USB-Serial interface on WiConnect evaluation boards is based on an FTDI chip used widely in the industry. Most operating systems including Windows(R), OS X, and Linux provide integrated FTDI driver support as part of the operating system. However on some older machines, or machines that do not pickup regular updates, the driver may not automatically install and it is necessary to manually install the driver. On computers running Windows(R), check if the driver is installed as follows: Display the System Control Panel (e.g. press the `Windows' key + Pause key). In the left-hand column near the top of the panel, click Device Manager In the Device Manager dialog, expand the Ports (COM and LPT) branch FTDI drivers appear under the USB Serial Port items. If no items of this kind appear, the drivers may not be installed. Note: The driver entry may not appear if the ACKme device is not connected to the USB port and powered on. Double click the USB Serial Port entry. Select the General tab in the USB Serial Port Properties dialog. Check the following: o Manufacturer: FTDI o Device status: This device is working properly Select the Driver tab in the USB Serial Port Properties dialog. Check the following: o Driver Provider: FTDI o Update drivers if necessary by clicking the Update Driver... button. In some cases, the FTDI driver may actually be correctly installed, but the driver may not enumerate as a Virtual Communications Port (VCP). If this is the case, find the device under the USB Serial Bus controllers section of the Device manager, open the device, check the VCP box, then click OK. It may be necessary to unplug/replug your evaluation board in order for the VCP driver to load correctly. If the FTDI drivers do not appear to be installed, see the installation instructions on the FTDI official site: http://www.ftdichip.com/Support/Documents/InstallGuides.htm ARG-MW106E-101R * AMW106 Evaluation Guide (c)2014-2015 ACKme Networks http://ack.me Page | 16 September 1, 2015 Appendix A - Configuring a Terminal Emulator AMW106 Evaluation Guide Set Up Tera Term for Windows(R) Tera Term is available as a free download from http://ttssh2.sourceforge.jp. Download and install Tera Term now if you have not already done so. The following procedure describes how to establish a UART serial connection between Tera Term and the evaluation board. 1. Start the Tera Term application and click on the Setup tab. A dropdown appears providing options to configure Tera Term as shown in the screen capture on the right. Select Terminal. 2. Terminal Setup. In the New-line section of the Setup Terminal dialog box (see the screen capture below), ensure that: Receive: is set to CR Transmit: is set to CR+LF Close the Terminal Setup dialog box by selecting OK. 3. Serial Port Setup. Select the Setup tab again from the main window, then select Serial port. A Setup serial port dialog box appears. Ensure the settings in the dialog box match the settings shown in the following screen capture. The COM Port shown in the example (COM14) will almost certainly be different for your evaluation board, be sure to choose the COM port that matches your board. When the serial port has been correctly setup, close the Serial port setup dialog box by selecting OK. ARG-MW106E-101R * AMW106 Evaluation Guide (c)2014-2015 ACKme Networks http://ack.me Page | 17 September 1, 2015 Appendix A - Configuring a Terminal Emulator AMW106 Evaluation Guide 4. New Connection. From the Tera Term application menu, setup a new connection with the evaluation board by selecting File | New connection (or by pressing Alt + N) as shown in the screen capture on the right. A New connection dialog box appears as shown in the following screen capture. Check the Serial radio button, then click the Port: dropdown menu and select the COM port that matches your evaluation board. The COM port description for the evaluation board includes the text COMxx: USB Serial Port (COMxx). Once the correct COM port has been selected, close the New connection dialog box by selecting OK. 5. Testing the connection. If Tera Term was able to connect successfully, the text in the application title bar indicates which COM port is connected, and the baud rate of the connection. For the example documented above, Tera Term displays `COM14:115200baud'. The Tera Term screen remains blank however until a character is sent to WiConnect. Try pressing the Enter key, WiConnect responds with Ready as shown in the following screen capture. ARG-MW106E-101R * AMW106 Evaluation Guide (c)2014-2015 ACKme Networks http://ack.me Page | 18 September 1, 2015 Appendix A - Configuring a Terminal Emulator AMW106 Evaluation Guide Set Up CoolTerm for OS X CoolTerm is available as a free download from http://freeware.the-meiers.org/CoolTermMac.zip. Download and install CoolTerm now if you have not already done so. The following procedure describes how to establish a UART serial interface between CoolTerm and the evaluation board. 1. Start the CoolTerm application and click the Options menu icon. The CoolTerm Configuration window opens. Set the Serial Port configuration options as follows: Port: usbserial-XXXXXXXX Baudrate: 115200 Data bits: 8 Parity: none Stop bits: 1 Flow control : Deselect all options 2. Click OK. 3. Click the Connect menu icon. The CoolTerm application connects to the evaluation board. Try pressing the Enter key, if CoolTerm is successfully connected to the evaluation board, WiConnect responds with Ready > ARG-MW106E-101R * AMW106 Evaluation Guide (c)2014-2015 ACKme Networks http://ack.me Page | 19 September 1, 2015 Appendix B - Evaluation Board Schematics & Mechanical Dimensions The schematic on this page is for Moray version 3 - AMW106-E03.3. Schematics for other board revisions are available at http://ack.me/resources/show 1 2 3 4 5 6 7 8 GND M1 GND VD D_DUT A 2 3 4 5 6 7 8 9 10 11 GPI O0 JTAG_TMS JTAG_TDO JTAG_TDI JTAG_TCK OSC_32K VD D_DUT H3 GND VDD_ 3V3 R5 2k 2 R6 2k2 VDD_3 V3 8 U1 I 2C_SDA I 2C_SCL 2 6 7 VCC APPLE_AUTH 2.0C RESET_BTN C9 100nF 1 GND RESET_N 34 OSC_3 2K 9 SPI 1_MI SO( S) / FACTORY_RESET ANTENNA_1 0R SPI 1_SCK ( S) SPI 1_CS ( S) 1 3 5 7 9 ANTENNA_2 VD D_DUT JTAG_TDI JTAG_TCK GPI O22 GPI O11 1 3 5 7 9 R3 47 C2 DNF C4 TP1 GND R4 0R ANT_2 0R DNF C3 DNF GND VBAT VDD _MCU RESET_ N VDD_WI FI 3 C5 100nF C6 10uF 10 C7 CLK_ 32K_OUT 35 GND " Per i p h e r a l H ea d e r " UART0_ RTS UART0 _RX UART0 _TX UART0_ CTS GND GND VDD_3V3 100nF C8 10uF C10 100nF VDD_5V ACKm e D ebug Header - DNF RESET_N GPI O23 GPI O22 GPI O20 GPI O18 GPI O16 GPI O15 GPI O14 GPI O13 GPI O12 GPI O11 GPI O10 GPI O9 GPI O5 GPI O0 GND GND GND H8 GND GPI O5 GPI O6 GPI O7 GPI O8 GPI O9 GPI O10 GPI O11 GPI O12 GPI O13 GPI O14 GPI O15 GPI O16 GPI O17 2 4 JTAG_TDO 6 JTAG_TMS 8 RESET_N 10 GPI O12 GND JTAG_TDO JTAG_TMS RESET_N UART_TX GPI O16 GPI O13 I 2C_SCL I 2C_SDA 2 4 6 8 10 12 14 16 GND VD D_3V3 VD D_5 V " I s o l at i o n Ju m p er s " H7 VDD JTAG_TDI JTAG_TCK AUX UART_RX 1 3 5 7 9 11 13 15 H5 GND 2 4 JTAG_TDO 6 JTAG_TMS 8 RESET_N 10 GPI O12 GND JTAG_TDO JTAG_TMS RESET_N UART_TX A GND TP2 H4 UART1_TX / ADC / PWM ADC / PWM ADC / PWM UART1_CTS / ADC / WKUP / PWM UART1_RTS / ADC / PWM VDD_DUT RESET_N GPI O23 GPI O22 GPI O21 GPI O20 GPI O19 GPI O18 H2 VDD _DUT ACKm e - Num bat ( AMW 106.5) GND VDD JTAG_TDI JTAG_TCK AUX UART_RX 0R C1 DNF 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 VD D_DUT JTAG_TDI JTAG_TCK GPI O22 GPI O11 ANT_1 GND SPI 1_MOSI ( S) / PWM SPI 0_MI SO ( M) / ADC SPI 0_SCK ( M) / ADC SPI 0_MOSI ( M) / ADC UART0_RTS / UART0_CTS / PWM / UART0_RX / PWM / UART0_TX / PWM / PWM / PWM / I 2C_SCL / PWM / I 2C_ SDA / PWM / UART1_RX / ADC / PWM / / / / / R2 GND H6 B R1 43 36 35 34 33 32 31 30 29 28 27 GND H1 GPI O0 / GPI O1 GPI O2 / GPI O3 / GPI O4 GPI O5 / GPI O6 / GPI O7 / GPI O8 / GPI O9 / GPI O10 GPI O11 GPI O12 GPI O13 GPI O14 GPI O15 GPI O16 GPI O17 GPI O18 GPI O19 GPI O20 GPI O21 GPI O22 GPI O23 1 2 11 12 26 27 36 37 38 39 40 41 42 44 45 46 48 49 50 51 52 GND SDA SCL RST 4 5 6 7 8 13 14 15 16 17 18 19 20 21 22 23 24 25 28 29 30 31 32 33 GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND BUTTON_1 GPI O0 JTAG_TMS JTAG_TDO JTAG_TDI JTAG_TCK LED_R GPI O5 GPI O6 GPI O7 GPI O8 UART0_RTS GPI O9 UART0_CTS GPI O10 UART0_RX GPI O11 UART0_TX GPI O12 LED_2 GPI O13 I 2C_SCL GPI O14 I 2C_SDA GPI O15 LED_1 GPI O16 GPI O17 LED_Y GPI O18 GPI O19 THERM GPI O20 GPI O21 BUTTON_2 GPI O22 LED_G GPI O23 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 RESET_BTN LED_G BUTTON_2 THERM LED_Y LED_1 I 2C_SDA I 2C_SCL LED_2 UART0_TX UART0_RX UART0_CTS UART0_RTS LED_R BUTTON_1 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 B H9 " Re s et B u t t o n " " Bu t t o n 1 " " Bu t t o n 2 " ACKm e Program m ing Header VDD_3V3 VD D_3V3 To factory reset t he m odule: - Pr ess and hold But t on 1 - Pr ess and release t he Reset But t on S1 - Wait for 10 seconds - Release But t on 1 D1 R7 47k H10 0. 2R 1% 3V3_USB 5V_USB GND 7 USBDM 1 10nF USB_DM USB_DP GND R24 R25 C20 C21 47pF D TP_ I _MON 1 47pF 27R 27R 6 3 V3_USB 9 USBDP RESET# C22 100nF GND GND U4 FT230XQ THERM I = V / 10 RT1 10k GND TXD RXD RTS# CTS# 15 2 16 4 CBUS0 CBUS1 CBUS2 CBUS3 12 11 5 14 UART0 _TX_USB UART0 _RX_USB UART0 _RTS_USB UART0_ CTS_USB RX_LED TX_LED PW REN_L R20 R21 R22 R23 Green D8 D9 1k 1k 1k 1k LED _2 GND R26 R27 TP7 TP8 TP9 R17 220R D7 Yellow Red GND GND GND GND Title: Green D Moray (AMW106-E03) ACKme Networks Pty Ltd FI D2 A3 FI D3 M2 ARG-MW106E-101R* AMW106 Evaluation Guide (c)2014-2015 ACKme Networks D6 Copy right 201 4, ACKm e Netw orks I nc. ht t p: / / ack.m e Size: 3 R16 220R D5 GND 220R 220R GND 2 R15 220R VD D_3V3 FI D1 1 LED _1 D4 Gr een D3 Gr een Green UART0_RX UART0_TX UART0_CTS UART0_RTS GND GND " Sy st em I n d i ca t o r LEDs " LED_2 LED_1 R14 10k t 10 3V3OUT GND GND EP 1 2 3 4 5 8 GND " Use r LED' s " VDD_3V3 3 13 17 MH1 MH2 MH3 MH4 GND 3V3_USB VCC C19 USB1 TP6 VCCIO GND Micr o USB B Socket TP5 C18 100nF GND " Th er m i s t o r " GND I _ MON C17 4. 7uF L1 220 Ohm @ 100MHz GND VD D_5V C16 100nF OUT GND MAX4376FAUK+ T 3 VCC LED_R GND 1 GN D C GND LED_Y 2 PWREN_L R9 47k LED_G U3 D2 Blue R8 47k S3 TP4 R1 9 220R R13 1k R12 220R S2 BUTTON_2 5 C15 47uF BUTTON_1 R1 8 220R R10 C14 100nF Press But t on 2 t o w ak e t he m odule f rom sleep RESET_BTN TP3 2 ADJ Vout SN Vin C13 100nF 1 C12 47uF VDD_DUT VDD _3V3 SP S D 3 C11 100nF G R11 100k C LM1117MP- 3.3 U2 VD D_5V 4 Si2333DS ( P- Ch) 1 2 SM4005PL- TP Q1 VDD_3V3 4 M3 M4 Document Number: 90-001-0025-030 M5 5 C Copyright 2 01 5 Rev. 3 Rev. Date: 13/05/2015 Sheet 1 of 1 6 7 8 Page | 20 September 1, 2015 Smart. Connected. Energy-Friendly. Products Quality www.silabs.com/products www.silabs.com/quality Support and Community community.silabs.com Disclaimer Silicon Labs intends to provide customers with the latest, accurate, and in-depth documentation of all peripherals and modules available for system and software implementers using or intending to use the Silicon Labs products. Characterization data, available modules and peripherals, memory sizes and memory addresses refer to each specific device, and "Typical" parameters provided can and do vary in different applications. Application examples described herein are for illustrative purposes only. Silicon Labs reserves the right to make changes without further notice and limitation to product information, specifications, and descriptions herein, and does not give warranties as to the accuracy or completeness of the included information. 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