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requirment: want to get arm ubuntu rootfs method: base on debootstrap tool, customization full function arm ubuntu rootfs. solution: sudo apt-get inst 阅读全文
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case: svn add lib/systemd/system/dropbear@.service svn: E200009: 'lib/systemd/system/dropbear@.service': a peg revision is not allowed here analyze: g 阅读全文
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1 Scope of Document This document describes how to make am335x arago rootfs using ycoto project 2 Requiremen 2.1 Function Requirement Make am335x arag 阅读全文
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sha256.h #ifndef _SHA256_H#define _SHA256_H #ifndef uint8#define uint8 unsigned char#endif #ifndef uint32#define uint32 unsigned long int#endif typede 阅读全文
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case: when system is running well ,sudden tf became read-only; analyze: read the kernel log using dmesg , find follow log: FAT-fs (mmcblk0p1): error, 阅读全文
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1 Scope of Document This document describes 4G hardware design, support quectel ec20 4G module/ Simcom 7600 CE 4G module 2 Requiremen 2.1 Function Req 阅读全文
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1 Scope of Document This document describes USB hardware design, support stardard usb2.0 port on port1 2 Requiremen 2.1 Function Requirement support s 阅读全文
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1 Hardware Overview gpio interface,pin map: AM335X_I2C0_W_C MCASP0_AXR1 /*4g-power*/ AM335X_MMC2_DAT0 GPMC_A1 /*4g-reset*/ AM335X_MMC2_DAT2 GPMC_A3 /* 阅读全文
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1 Scope of Document This document describes can bus hardware design and can bus driver development and can test 2 Requiremen 2.1 Function Requirement 阅读全文
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1 Scope of Document This document describes UART hardware design, uart driver porting 2 Requiremen 2.1 Function Requirement Uboot enable uart0 for deb 阅读全文