6/1/2023 0 Comments Beagleboard sdio wifiYour Beagle should be running a DHCP server that will provide your computer with an IP address in the 192.168.8.x range and reserve 192.168.8.1 for itself. The access point password defaults to 'BeagleBone'. The on-board HDMI and Ethernet are removed tomake room for these wireless features and Grove connectors. If your Beagle includes WiFi, an access point called 'BeagleBone-XXXX' where 'XXXX' varies between boards. SeeedStudio BeagleBone Green Wireless has included a high-performance flexible WiFi/Bluetooth interface andtwo Grove connectors, making it easier to connect to the large family of Grove sensors. It is based on the open-source hardware design of BeagleBone Black and developed into this differentiatedversion. But I always get halt near first WiFi scan operation and get a lot of debug message about CPU soft lockup like following log. The default linux SDIO stack use polling to make the SDIO workable even the host dont. The driver use default linux sdio routine sdiomemcpyfromio, sdiomemcpytoio to access WiFi module. The TI SDIO host driver implementation (omaphsmmc.c) of linux kernel dont support SDIO card interrupt cause the result. The ping time near 20 ms and the ftp below 70KB/s. SeeedStudio BeagleBone Green Wireless(BBGW) is a joint effort by and Seeed Studio. The driver work now, but the performance is bad.
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