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void uart_putchar(unsigned char k){while(!(UTRSTAT0&0x04)) ; UTXH0 = k;}unsigned char uart_getchar(void){unsigned char c;while(!(UTRSTAT0&1<<0)) ; c = URXH0;return c;}真是 踏遍铁鞋无觅处， 害我1天在整啊 阅读全文
2013年8月14日
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跳转指令b/blcond | ... | L(是否有L) | signed_immed_24(24-bit的有符号的立即数) |目录/home/km/arm/u-boot-mini6410/board/samsung/mini6410ifndef TEXT_BASETEXT_BASE = 0xc7e00000endif 阅读全文
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Monitor Commands - Overview:============================命令go - start application at address 'addr'run - run commands in an environment variablebootm - boot application image from memorybootp - boot image via network using BootP/TFTP protocoltftpboot- boot image via network using TFTP protoco 阅读全文
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Software Configuration:=======================软件的配置Configuration is usually done using C preprocessor defines; therationale behind that is to avoid dead code whenever possible.使用c的预处理 避免 “dead code”两种配置变量There are two classes of configuration variables:* Configuration _OPTIONS_: 选址性的 These are selec 阅读全文
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Summary:========包含uboot源代码 （包含的架构有： PPC， ARM， MIPS， etc）This directory contains the source code for U-Boot, a boot loader for Embedded boards based on PowerPC, ARM, MIPSand several other processors, 可以安装到启动的rom中用来初始化或是测试硬件或是下载/运行程序which can be installed in a boot ROM and used toinitialize and test t 阅读全文
