请问如何将A40i的mmc0/sdc0，SD卡去掉，不需要SD烧录
如题，不需要SD卡烧录，占用6个IO引脚，想做为普通IO使用，使用OTG烧录就可以了 ;----------------------------------------------------------------------------------;card_ctrl卡量产控制器选择0
;card_high_speed速度模式0为低速，1为高速
;card_line 4：4线卡8：8线卡
;引脚配置
;注：此接口在底板上面,如果不使用，全部注释掉，包括配置，否则烧录镜像无法开机
;----------------------------------------------------------------------------------
;card_ctrl = 0
;card_high_speed = 1
;card_line = 4
;sdc_d1 = port:PF0<2><1><2><default>
;sdc_d0 = port:PF1<2><1><2><default>
;sdc_clk = port:PF2<2><1><2><default>
;sdc_cmd = port:PF3<2><1><2><default>
;sdc_d3 = port:PF4<2><1><2><default>
;sdc_d2 = port:PF5<2><1><2><default>
;----------------------------------------------------------------------------------
;--------------------------------------------------------------------------------
; SDMMC PINS MAPPING |
; ------------------------------------------------------------------------------|
; Config Guide |
; sdc_used: 1-enable card, 0-disable card |
; non-removable:if you use as main memory,you should set it,for example eMMC|
; bus-width: card bus width, 1-1bit, 4-4bit, 8-8bit |
; sunxi-power-save-mode: if use sdio card,should not set it |
; vmmc:regulator for card/emmc power |
; vqmmc:regulator for card/emmc io power |
; vdmmc:regulator for card detect pin pull up power |
; other: GPIO Mapping configuration |
; ------------------------------------------------------------------------------|
; sdc0复用为io，不使用
; sdc1复用为io，不使用
; sdc2在核心板
; sdc3用为TF卡
;--------------------------------------------------------------------------------
sdc0_used = 0
bus-width = 4
;sdc0_d1 = port:PF00<2><1><2><default>
;sdc0_d0 = port:PF01<2><1><2><default>
;sdc0_clk = port:PF02<2><1><2><default>
;sdc0_cmd = port:PF03<2><1><2><default>
;sdc0_d3 = port:PF04<2><1><2><default>
;sdc0_d2 = port:PF05<2><1><2><default>
;cd-gpios = port:PI11<0><1><2><default>
;wp-gpios = port:PG01<0><1><2><default>
;wp-inverted =
broken-cd =
sunxi-power-save-mode =
sunxi-dis-signal-vol-sw =
;mmc-ddr-1_8v =
;mmc-hs200-1_8v =
;mmc-hs400-1_8v =
;max-frequency = 150000000
vmmc="vcc-sdcv-p3"
vqmmc="vcc-sdcvq33-p3"
vdmmc="vcc-sdcvd-p3"
;ctl-spec-caps = 0x8
将fex文件中上面关于SD部分修改，即可去掉，驱动，而且开机不受影响
本帖最后由 kuangboqi123 于 2021-9-20 00:42 编辑
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