@whycan 如何强行拉高，是从外部直接用10k电阻接vcc拉高吗？

买了块珠海六点智能的V536开发板，插上AP6255 wifi蓝牙模块后，按照文档，手动加载bcmdhd.ko模块，结果报以下错误，请大佬给分析一下估计是什么原因？

root@tina:/# insmod /lib/modules/4.9.118/bcmdhd.ko
[  187.282765] dhd_module_init: in Dongle Host Driver, version 1.579.77.41.7 (r)
[  187.291609] ======== dhd_wlan_init_plat_data ========
[  187.297397] dhd_wlan_init_gpio: WL_REG_ON=-1, WL_HOST_WAKE=-1
[  187.303943] dhd_wlan_init_gpio: oob_irq=28, oob_irq_flags=0x4084
[  187.310759] dhd_wifi_platform_load: Enter
[  187.316023] Power-up adapter 'DHD generic adapter'
[  187.321700] wifi_platform_set_power = 1
[  187.326857] ======== PULL WL_REG_ON(-1) HIGH! ========
[  187.333208] sunxi-wlan wlan: check wlan io_regulator voltage: 1800000
[  187.666779] wifi_platform_bus_enumerate device present 1
[  187.673196] sunxi-wlan wlan: bus_index: 1
[  187.677895] ======== Card detection to detect SDIO card! ========
[  187.684824] sunxi-mmc sdc1: sdc set ios:clk 0Hz bm PP pm UP vdd 21 width 1 timing LEGACY(SDR12) dt B
[  187.695411] sunxi-mmc sdc1: no vqmmc,Check if there is regulator
[  187.726826] sunxi-mmc sdc1: sdc set ios:clk 400000Hz bm PP pm ON vdd 21 width 1 timing LEGACY(SDR12) dt B
[  187.824667] sunxi-mmc sdc1: smc 2 p1 err, cmd 52, RTO !!
[  187.938683] sunxi-mmc sdc1: smc 2 p1 err, cmd 52, RTO !!
[  187.944715] sunxi-mmc sdc1: sdc set ios:clk 400000Hz bm PP pm ON vdd 21 width 1 timing LEGACY(SDR12) dt B
[  187.958792] sunxi-mmc sdc1: sdc set ios:clk 400000Hz bm PP pm ON vdd 21 width 1 timing LEGACY(SDR12) dt B
[  187.971662] sunxi-mmc sdc1: smc 2 p1 err, cmd 8, RTO !!
[  187.978277] sunxi-mmc sdc1: smc 2 p1 err, cmd 5, RTO !!
[  187.984182] sunxi-mmc sdc1: smc 2 p1 err, cmd 5, RTO !!
[  187.990196] sunxi-mmc sdc1: smc 2 p1 err, cmd 5, RTO !!
[  187.996164] sunxi-mmc sdc1: smc 2 p1 err, cmd 5, RTO !!
[  188.002493] sunxi-mmc sdc1: smc 2 p1 err, cmd 55, RTO !!
[  188.008636] sunxi-mmc sdc1: smc 2 p1 err, cmd 55, RTO !!
[  188.014751] sunxi-mmc sdc1: smc 2 p1 err, cmd 55, RTO !!
[  188.020768] sunxi-mmc sdc1: smc 2 p1 err, cmd 55, RTO !!
[  188.020812] sunxi-mmc sdc1: sdc set ios:clk 400000Hz bm OD pm ON vdd 21 width 1 timing LEGACY(SDR12) dt B
[  188.026777] sunxi-mmc sdc1: smc 2 p1 err, cmd 1, RTO !!
[  188.026817] sunxi-mmc sdc1: sdc set ios:clk 0Hz bm PP pm OFF vdd 0 width 1 timing LEGACY(SDR12) dt B
[  189.766794] failed to power up DHD generic adapter, 3 retry left
[  189.791427] wifi_platform_set_power = 0
[  189.796300] ======== PULL WL_REG_ON(-1) LOW! ========
[  189.802293] wifi_platform_bus_enumerate device present 0
[  189.808396] sunxi-wlan wlan: bus_index: 1

sys_config.fex中wifi部分配置如下：

[wlan]
wlan_used           = 1
wlan_busnum         = 1
;wlan_usbnum        = 3
wlan_power          = "vcc33-wifi"
wlan_io_regulator   = "vcc-pg"
;wlan_en            = port:PG11<1><default><default><0>
wlan_regon          = port:PG11<1><default><default><0>
wlan_hostwake       = port:PL05<6><default><default><0>

@yixiuge 赞，我今天也遇到个接地不良导致串口输出乱码的问题