问题1:我们使用了WL1837的wifi模块,在进行性能测试的时候,发现其不能启动5G热点,信息如下:
root@NSC200:~# ./hostapd hostapd.conf
Configuration file: hostapd.conf
[ 2115.561118] wlcore: down
rfkill: Cannot open RFKILL control device
Channel 48 (primary) not allowed for AP mode, flags: 0x73 NO-IR
wlan0: IEEE 802.11 Configured channel (48) not found from the channel list of cu
rrent mode (2) IEEE 802.11a
wlan0: IEEE 802.11 Hardware does not support configured channel
Could not select hw_mode and channel. (-3)
wlan0: interface state UNINITIALIZED->DISABLED
wlan0: AP-DISABLED
wlan0: Unable to setup interface.
wlan0: interface state DISABLED->DISABLED
wlan0: AP-DISABLED
wlan0: CTRL-EVENT-TERMINATING
hostapd_free_hapd_data: Interface wlan0 wasn't started
nl80211: deinit ifname=wlan0 disabled_11b_rates=0
[ 2115.641454] wlcore: down
root@NSC200:~#
hostapd.conf 主要配置如下:
interface=wlan0
ssid=SC200-test
driver=nl80211
channel=48
ieee80211n=1
ieee80211ac=1
hw_mode=a
require_ht=1
ht_capab=[HT40-][HT40+][SHORT-GI-20][SHORT-GI-40]
问题2:在am335x平台,使用了WL1837的wifi模块,做2.4G热点的情况下,电脑用intel ax200 wifi连接,速率显示150M,实际下载速率不超过2.1MB/s;使用博通wifi 做5G热点的情况,连接速率433下,下载速率也不超过2.1MB/s,请问是SDIO接口速率限制了码?
Nancy Wang:
您的问题建议去英文论坛发帖咨询。
e2e.ti.com/…/968
jianhui alvin:
回复 Nancy Wang:
wl1837 不支持80211ac,但支持80211n 5G
yongqing wang:
回复 jianhui alvin:
wl1837无法启动5G的问题建议到wifi板块去提问
yongqing wang:
回复 yongqing wang:
高速SDIO目前在板子的系统中只支持4bit模式,速度慢一些
jianhui alvin:
回复 yongqing wang:
我们板子,有8bit的EMMC,实际写入速率也很低,3~4MB/s,其实TI 对其cpu 有没有标识一些性能指标?
yongqing wang:
回复 jianhui alvin:
CPU写flash 速度快不到哪去
你想指导哪些性能指标?
TI中文支持网