am335x - 随笔分类 - 嵌入式实操

am335x system upgrade set/get current cpufreq(二十一)

摘要：1 Scope of Document This document describes am335x cpufreq technology insider. 2 Requiremen 2.1 Function Requirement How to get current cpufreq, and t 阅读全文

posted @ 2019-08-19 16:53 嵌入式实操阅读(328) 评论(0) 推荐(0)

am335x system upgarde ddr3 capacity configuration base on TI DDR3 Software Leveling Tool (二十)

摘要：follow test is use ti DDR Software Leveling op log. AM335x DDR3 Software Leveling -- Version: Beta 3.0 -- Copyright: Texas Instruments China Local Tea 阅读全文

posted @ 2019-03-22 11:36 嵌入式实操阅读(452) 评论(0) 推荐(0)

am335x system upgrade usb wifi rtl8188eus(十九)

摘要：1 Scope of Document This document describes how to port rtl8188eus driver to linux 4.14.y design. 2 Requiremen 2.1 Function Requirement Support usb wi 阅读全文

posted @ 2019-02-25 14:45 嵌入式实操阅读(949) 评论(0) 推荐(0)

am335x system upgrade kernel emmc(十八)

摘要：1 Scope of Document This document describes EMMC hardware design 2 Requiremen 2.1 Function Requirement support 4G capacity EMMC in linux 2.2 Performan 阅读全文

posted @ 2019-01-08 16:37 嵌入式实操阅读(374) 评论(0) 推荐(0)

am335x system upgrade rootfs custom service using systemd script(十七)

摘要：1 Scope of Document systemd 是一个 Linux 系统基础组件的集合，提供了一个系统和服务管理器，运行为 PID 1 并负责启动其它程序。功能包括：支持并行化任务；同时采用 socket 式与 D-Bus 总线式激活服务；按需启动守护进程（daemon）；利用 Linux 阅读全文

posted @ 2019-01-08 16:34 嵌入式实操阅读(155) 评论(0) 推荐(0)

am335x system upgrade kernel f-ram fm25l16b(十六)

摘要：1 Scope of Document This document describes SPI F-RAM hardware design 2 Requiremen 2.1 Function Requirement support spi f-ram fm25l16b in linux 2.2 Pe 阅读全文

posted @ 2019-01-04 14:34 嵌入式实操阅读(346) 评论(0) 推荐(0)

am335x using brctl iptables dhcpcd make multi wan & multi lan network（十五）

摘要：构建多LAN口多WAN口动态网络【目的】在AM335X定制动态网络功能，如下所示，在系统当中有两个以太网口，有4G模块，有wifi芯片8188eu支持AP+STA功能。【实验环境】 1、 Ubuntu 16.04发行版 2、 MC183平台 3、交叉编译器arm-linux-gnueabih 阅读全文

posted @ 2018-12-17 10:20 嵌入式实操阅读(699) 评论(0) 推荐(0)

am335x system upgrade rootfs for bridge-utils cross compile (十四)

摘要：bridge-utils移植【目的】移植bridge-utils的目是在AM335X开发板上使用bridge功能。【环境】 1、 Ubuntu 16.04发行版 2、 MC183平台 3、交叉编译器arm-linux-gnueabihf-gcc-4.7.3 【步骤】 1、下载bridge-u 阅读全文

posted @ 2018-12-17 09:51 嵌入式实操阅读(573) 评论(0) 推荐(0)

am335x system upgrade rootfs for dhcpcd cross compile(十三)

摘要：dhcpcd移植【目的】移植dhcpcd的目是在AM335X开发板上使用dhcp功能,获取WAN口设备的IP，并且可以通过参数指定其matric,matric值越小，其优先级越高。如设备可以以太网，WIFI，4G上网时，可定制外网功能，以太网优先级最高，WIFI次之，4G优先级最低。【环境】阅读全文

posted @ 2018-12-17 09:50 嵌入式实操阅读(371) 评论(0) 推荐(0)

am335x system upgrade rootfs using yocto make rootfs(十二)

摘要：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

posted @ 2018-12-04 16:53 嵌入式实操阅读(554) 评论(0) 推荐(0)

am335x system upgrade kernel ec20 simcom7600ce(十一)

摘要：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

posted @ 2018-11-30 14:54 嵌入式实操阅读(1075) 评论(0) 推荐(0)

am335x system upgrade kernel usb stroage(十)

摘要：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

posted @ 2018-11-29 15:09 嵌入式实操阅读(193) 评论(0) 推荐(0)

am335x system upgrade kernel gpio(九)

摘要：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

posted @ 2018-11-27 16:14 嵌入式实操阅读(424) 评论(0) 推荐(0)

am335x system upgrade kernel can(八)

摘要：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

posted @ 2018-11-27 15:40 嵌入式实操阅读(801) 评论(0) 推荐(0)

am335x system upgrade kernel uart(七)

摘要：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

posted @ 2018-11-27 15:10 嵌入式实操阅读(482) 评论(0) 推荐(0)

am335x system upgrade kernel i2c rtc eeprom(六)

摘要：1 Scope of Document This document describes i2c bus hardware design and support i2c-devices: eeprom(at24c08) rtc(rx8025). 2 Requiremen 2.1 Function Re 阅读全文

posted @ 2018-11-27 14:46 嵌入式实操阅读(355) 评论(0) 推荐(0)

am335x system upgrade kernel tf(五)

摘要：1 Scope of Document This document describes TF hardware design 2 Requiremen 2.1 Function Requirement Enumerate tf card , support boot from tf and can 阅读全文

posted @ 2018-11-23 17:26 嵌入式实操阅读(552) 评论(0) 推荐(0)

am335x system upgrade kernel ethernet(四)

摘要：1 Scope of Document This document describes ethernet hardware design and porting KZS8081 to uboot and kernel 2 Requiremen 2.1 Function Requirement Use 阅读全文

posted @ 2018-11-23 17:17 嵌入式实操阅读(984) 评论(0) 推荐(0)

am335x system upgrade uboot nand boot(三)

摘要：在uboot 下初始化nand，一般需要做如下工作：第一：配置默认从NAND boot Index: include/configs/am335x_evm.h include/configs/am335x_evm.h (revision 8)+++ include/configs/am335x_ 阅读全文

posted @ 2018-11-23 17:05 嵌入式实操阅读(1133) 评论(0) 推荐(0)

am335x system upgrade uboot ethernet(二)

摘要：系统可以通过SD卡引道之后，为了之后了调试方便通过查看网卡的硬件设计正常来说需要注意的有如下几点： 1) 网口的接线方式： RMII 2) 网口的PHY地址两张网口，这里我们只需先初始化一张网卡，通过查看PHY的数据手册，可以发现其代码PHY地址是0. 3) 将对应的网卡驱动在include/ 阅读全文

posted @ 2018-11-23 16:41 嵌入式实操阅读(925) 评论(0) 推荐(0)

随笔分类 - am335x

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