mtk查看硬件原理图

2019-07-14 10:34发布

https://blog.csdn.net/zhigouliu/article/details/73848682
地址:192.168.22.243software_HW_Resource_项目分类939-37原理图B939_MB_V5.0_20161125.sch
软件:PADS9.5_3in1中文精简破解版
1.查看tp的reset硬件是哪个GPIO 1.1 查原理图\192.168.22.243software\_HW_Resource_项目分类939-37原理图B939_MB_V5.0_20161125.sch "14_LCM_CTP" 选中"RET_CTP"----右键_选择网络----next 找到"PCM_SYNC" 1.2 查表格\192.168.22.243software\_HW_Resource_项目分类939-37B939M10_GPIO配置表.xls PCM_SYNC----TP复位脚----GPIO62 2.查看串口点: 2.1 查原理图\192.168.22.243software\_HW_Resource_项目分类939-37原理图B939_MB_V5.0_20161125.sch "07_BB_2" "UART" "UTXD0" - 点击选中 打开\192.168.22.243software\_HW_Resource_项目分类939-37原理图B939_MB_V5.0_20161125.pcb 点击“标准工具栏”中的“PADS Layout”,与B939_MB_V5.0_20161125.pcb链接 在layout中可以看到有网络高亮。即所要找的串口测试点 注:在查看layout图中,由于太多层叠,可以在菜单栏的“设置”中修改“显示颜 {MOD}设置” 关闭一些,只保留"Top"和"Bottom" 即可 3.喇叭没有声音----硬件测喇叭是好的 3.1 硬件原理图查看喇叭gpio口 \192.168.22.243software\_HW_Resource_项目分类939-37原理图B939_MB_V5.0_20161125.sch 查看得知为GPIO59 3.2 修改驱动 - 如果是写死在驱动中 kernel-3.18soundsocmediatekmt_soc_audio_v3mt_soc_codec_63xx.c 1867 #define GPIO_SPEAKER_EN_PIN 59 //改为2 3.3 修改dts - 如果是写在dts中 /* AUdio_extal_AMP_GPIO Kernel Standardization start */ &pio { audioss_default: audioss_default { }; pinctrl_audioss0: pinctrl_audioss0@gpio59 { pins_cmd_dat { pins = ; slew-rate = <1>; bias-pull-up = <00>; }; }; pinctrl_audioss0_low: pinctrl_audioss0_low@gpio59 { pins_cmd_dat { pins = ; slew-rate = <1>; output-low; bias-pull-up = <00>; }; }; pinctrl_audioss0_high: pinctrl_audioss0_high@gpio59 { pins_cmd_dat { pins = ; slew-rate = <1>; output-high; bias-pull-up = <00>; }; }; }; &audioss { pinctrl-names = "audioss_default", "pinctrl_audioss0", "pinctrl_audioss0_low", "pinctrl_audioss0_high"; pinctrl-0 = <&audioss_default>; pinctrl-1 = <&pinctrl_audioss0>; pinctrl-2 = <&pinctrl_audioss0_low>; pinctrl-3 = <&pinctrl_audioss0_high>; status = "okay"; }; /* AUdio_extal_AMP_GPIO Kernel Standardization end */