![qualcomm atheros wlan driver high cpu usage qualcomm atheros wlan driver high cpu usage](https://www.winosbite.com/wp-content/uploads/2020/07/wlanext.ex_.png)
In such cases, the transmitter will reduce the transmit power to obtain current saving, while maintaining its high uplink throughput. This feature allows the device to save power when communicating with a nearby station or access point when high output power is not required to sustain reliable communications. Since we have not done Wi-Fi Direct certification, we do not openly advertise or support its functionality.Īnswer: It supports SoftAP mode with a maximum of 4 connections.Īnswer: It does not support concurrent mode.ĭoes SX-ULPAN support WPS (Wi-Fi Protected Setup)?Īnswer: SX-ULPAN supports WPS enrollee (station), no external registrar, PBC (Push Button Control) or PIN method (device PIN only).ĭoes SX-ULPAN support WoW (Wake on Wireless)?Īnswer: It does not support Wake on Wireless function.Īnswer: We do not support MESH on the SX-ULPANĪnswer: GreenTX is Qualcomm-Atheros proprietary function and only works when connected to a GreenTX-capable Access Point. It is still POSSBLE that the end user product can be certified for Wi-Fi certification logo, and can be a time consuming task.Īnswer: SX-ULPAN supports Wi-Fi Direct only in client mode. Wi-Fi Certification is given to PRODUCT, and not to a COMPONENT. What is maximum distance supported by SX-ULPAN?Īnswer: The Wi-Fi performance is comparable to the 6K3 radio, although it does not support the HT40 link rates.ĭo you have Wi-Fi Certification Logo for SX-ULPAN?Īnswer: The SX-ULPAN does not have Wi-Fi certification. With 30MHz SPI clock and 120MHz ARM Cortex-M4 core, actual throughput will be about 10Mbps. It is limited to 30MHz with SX-ULPAN-EVK due to KinetisK21 SPI controller. Note: QCA400x/SX-ULPAN SPI clock is up to 48MHz. What is typical throughput of the SX-ULPAN?Īnswer: Due to SPI limitations throughput is up to 10Mbps. Note: "UART mode" firmware has not been released so it is not currently supported.Īnswer: These interfaces are not supported on the SX-ULPAN. "UART mode" uses a UART interface and modem AT commands. What is difference between "SPI mode" and "UART mode" of SX-ULPAN?Īnswer: "SPI mode" uses SPI interface and QCA wmiconfig. However the SX-ULPAN is not limited to just the Kinetis family the SPI driver can ported to alternate MCU's and OS's. What CPU do you recommend to be used with SX-ULPAN?Īnswer: Silex recommends using Freescale Kinetis family of MCU's. However, our next version of the hardware will use v3.2 driver which will support host-less mode which will allow the Wi-Fi module to function as a complete autonomous system, without the need for an external CPU. What is typical power consumption of the SX-ULPAN?ĭo I need an external CPU with the SX-ULPAN?Īnswer: An external CPU or MCU is needed for the SX-ULPAN hardware with the driver version 3.0.2. Thus, it can reduce power requirement as whole system.
#Qualcomm atheros wlan driver high cpu usage code
In the case of QCA400x/SX-ULPAN, minimum memory requirement is as low as 128KByte for code and 16KByte for data. Traditional Wi-Fi requires Linux-class OS and several megabytes of memory on host system to run driver/supplicant. What makes QCA400x / SX-ULPAN different from "traditional" Wi-Fi is driver, supplicant and protocol (TCP/IP) offload. So, ultra-low power Wi-Fi refers to the whole system power, and not just the Wi-Fi. What is the difference between the so-called “Ultra-Low Power Wi-Fi” and traditional Wi-Fi?Īnswer: The ultra-low power Wi-Fi allows the use of a much smaller and lower power host CPU or even no host CPU, creating an overall smaller power draw for the system.