SAM9X75 Curiosity Wireless Kit - Wi-Fi® Getting Started Guide for Linux®
Introduction
Thank you for evaluating the SAM9X75 Curiosity Wireless Kit. This guide will assist you in running the demonstration application designed for the kit. For a more detailed exploration of the kit's features and capabilities, please refer to the links in this guide's "Explore Applications" section.
This getting started guide will help you enable the Soft Access Point (SoftAP) on the SAM9X75 Curiosity Wireless Kit. This allows a smartphone or PC to access a static web page through a browser.
Prepare M.2 Module Firmware Update
Program the WIxCS02 M.2 Wi-Fi Module with the correct firmware image.
Download the Harmony_support.bin and boot.bin files from the repository.
Open the repository in a new window (to keep this instruction page open),
Perform steps 1.2 - 1.3 for each file (Linux_support.bin and boot.bin) to get to each specific file.
Click on each file to get to the download option.
Click on the Download raw file button.
Copy the downloaded Linux_support.bin and boot.bin to the SD card.
Set the SD card aside to be used in the hardware setup section.
Set Up the Board Components
Connect the components as shown in the accompanying images:
Insert the flange and antenna assembly into the antenna hole labeled "FD1" .
Secure the antenna into the flange with the antenna wire going under the hole provided.
Insert the WIxCS02 M.2 Wi-Fi Module into J20 M.2 connector.
Secure the provided screw on the "tapped hole" provided labeled as "STANDOFF1".
Insert the SD card in the SD Boot J14 slot.
Connect the serial USB dongle to the UART DEBUG J35 header.
Set the J24:M.2 I/F SEL to SDIO.
Connect a USB-A to Micro USB-B cable to the J2 Micro USB-B port for power.
Set Up and Start SAM9X75 Curiosity Board Serial Terminal
Set up the SAM9X75 Curiosity Board Serial Terminal on the host computer.
On the host computer, open a Serial Terminal with the following settings:
- Baud Rate: 115200
- Data: 8-bit
- Parity: None
- Stop: 1-bit
- Flow Control: None
Check the serial port in the system.
-i 'serial|ttyUSB'
Confirm serial port settings, assuming ttyUSB0 is the hardware connected.
Set the parameters.
115200 cs8 -cstopb -parenb
Set the serial port to use, for example, ttyS0 is selected.
A built-in serial emulator is "cu". Assuming /dev/ttyUSB0 is the terminal you want to use, run cu:
Verify M.2 Module Update
Power on the board.
Using the console, confirm that the image is used in the Device Firmware Update.
Set Up Demo Application
Take the SD card used in Step 1.2 of the Prepare M.2 Module Firmware Update section to copy the application and boot binaries.
Place it in any directory of your choice.
Copy the downloaded file into the SD memory card using balenaEtcher.
Insert the SD memory card into the host computer.
Download, install, and run balenaEtcher.
Select the downloaded linux4sam-buildroot-sam9x75_curiosity-headless-2024.10.img.bz2.
Select the target to download.
Select the mounted SD card.
Select Flash.
The SD card will be ready for use once flashing is completed.
Re-insert the SD card to SD Boot J14 slot.
Press the RESET (SW3) button on the SAM9X75 Curiosity Board to force a reset.
When the system is ready, the console terminal you set up earlier in this tutorial will show a prompt.
Verify the login prompt is shown on the console.
Type or enter "root" to log in. No password is required.
If you do not see the prompt, press the enter key to force the prompt to refresh.
Perform the Test
Perform the test to display the static web page.
In the target console, run the following command:
The console will display the following selection option:
Enter "1" to select Open AP for security AP.
Wait for the console to display the following logs. This indicates that the softAP mode setup is complete.
On the PC, connect to the access point using the network name "microchip-SoftAP".
On the PC, open a browser, then connect to the access point and enter this address as the URL: http://192.168.1.1.
Confirm the browser displays the following page:
Another way to test the Soft AP is to use a smartphone, and connect to the access point using the network name "microchip-SoftAP".
On the smartphone, open a browser, then connect to the access point using the address: http://192.168.1.1 .
Confirm on the smartphone browser that the following page is displayed:
Explore Applications
| Wireless Applications | Transparent UART communication between a smartphone and the SAM9X75 Curiosity Board using a BLE connection (SAM9X75 Curiosity Wireless Kit - BLE Getting Started Guide for Linux®) |
Ethernet Applications | Iperf networking test between Host PC (as a TCP Client) on Microchip Curiosity Board (as a TCP Server) (SAM9X75 Curiosity LAN Kit - Getting Started Guide for MPLAB® Harmony V3) |
| MPLAB Discover Code Examples | SAM9X75 Peripherals and Drivers code examples |
Explore Hardware
| SAM9X75 Curiosity LAN Kit | The SAM9X75 Curiosity Development Board, featuring the high-performance, ultra-low power SAM9X75D2G MPU with an ARM926EJ-S CPU running up to 800 MHz and integrated 2 Gbit DDR3L memory, serves as the evaluation platform for the SAM9X7 Series MPU devices. |
The RNBD451 Add-on Board is a cost-effective development platform for evaluating the RNBD451PE Bluetooth LE module, featuring compliance with the mikroBUS™ standard and an on-board MCP2200 USB-to-UART converter for immediate use without additional hardware. | |
| LAN8840 EDS2 Daughter Card | The EV12N54A LAN8840 EDS2 PHY Daughter Card offers copper Gigabit Ethernet connectivity for Microchip development platforms using the EDS2 interface, featuring the LAN8840 transceiver with PTP support for data transmission over standard CAT-5, CAT-5e, and CAT-6 UTP cables. |
| WINCS02UC Wi-Fi Network Controller Module | The WINCS02IC is a low-power IC featuring a 2.4 GHz IEEE 802.11b/g/n-compliant radio with integrated HPA, LNA, RF switches for TX/RX control, and a hardware-based security accelerator, designed to run Microchip's Wi-Fi and Networking stack via SPI. |
Troubleshooting
Common
| Serial Terminal is not showing anything. | There are multiple possible reasons why the terminal does not show anything:
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Kernel fails to detect the WIxC02 M.2 module over SDIO. | The log "mmc1: new high speed SDIO card at address 0001" should be printed when the system is booted up if the kernel can detect the WIxCS02 M.2 Wi-Fi module over SDIO. If the Kernel cannot detect the module, the user can make sure:
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When programming the WIxCS02 M.2 Wi-Fi module with the correct firmware image, the terminal shows: No File Found or Failed to read the file from sdcard DFU Failed - looping here |
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| Fail to connect the softAP or fail to load the webpage. |
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| Terminal shows RomBoot message. |
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| I ran cu in Linux command line, how do I exit? | Press keys Shift and ~ (tilde) then the . (dot) key and cu will exit and return to the command line. |
| I already have picocom installed. How do I use picocom instead of cu for my serial terminal? | To use picocom, replace all of Step 4 with the following:
user@comp:~/test$ picocom -b 115200 -r -l /dev/ttyUSB0 |