[color=rgba(0, 0, 0, 0.87)] 本文案例代码 下载地址
获取真随机数案例代码https://www.aw-ol.com/downloads?cat=24
[color=rgba(0, 0, 0, 0.87)]R128 内置了TRNG,一个真随机数发生器,随机源是 8 路独立的环形振荡器,由模拟器件电源噪声产生频率抖动,用低频始终重采样,然后进行弹性抽取和熵提取处理,最终输出128bit真随机数。 载入方案[color=rgba(0, 0, 0, 0.87)]我们使用的开发板是 R128-Devkit,需要开发 C906 核心的应用程序,所以载入方案选择r128s2_module_c906 code" style="box-sizing: inherit; -webkit-tap-highlight-color: transparent; font-size: inherit; font-family: inherit; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-width: 0px; border-style: initial; border-color: initial; position: absolute; top: 0.5em; right: 0.5em; z-index: 1; width: 1.5em; height: 1.5em; border-radius: 0.1rem; outline: none; outline-offset: 0.1rem; cursor: pointer; transition: color 0.25s ease 0s;">$ source envsetup.sh $ lunch_rtos 1[color=rgba(0, 0, 0, 0.87)] [color=var(--md-typeset-a-color)] 设置 TRNG驱动[color=rgba(0, 0, 0, 0.87)]运行 mrtos_menuconfig 进入配置页面。前往下列地址找到 TRNG Devices code" style="box-sizing: inherit; -webkit-tap-highlight-color: transparent; font-size: inherit; font-family: inherit; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-width: 0px; border-style: initial; border-color: initial; position: absolute; top: 0.5em; right: 0.5em; z-index: 1; width: 1.5em; height: 1.5em; border-radius: 0.1rem; outline: none; outline-offset: 0.1rem; cursor: pointer; transition: color 0.25s ease 0s;">Drivers Options ---> soc related device drivers ---> TRNG Devices ---> -*- enable trng driver[color=rgba(0, 0, 0, 0.87)] [color=var(--md-typeset-a-color)] 编写程序[color=rgba(0, 0, 0, 0.87)]打开你喜欢的编辑器,修改文件:lichee/rtos/projects/r128s2/module_c906/src/main.c [color=rgba(0, 0, 0, 0.87)] [color=var(--md-typeset-a-color)] 引入头文件 code" style="box-sizing: inherit; -webkit-tap-highlight-color: transparent; font-size: inherit; font-family: inherit; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-width: 0px; border-style: initial; border-color: initial; position: absolute; top: 0.5em; right: 0.5em; z-index: 1; width: 1.5em; height: 1.5em; border-radius: 0.1rem; outline: none; outline-offset: 0.1rem; cursor: pointer; transition: color 0.25s ease 0s;">#include <sunxi_hal_trng.h>[color=rgba(0, 0, 0, 0.87)] [color=var(--md-typeset-a-color)] 初始化 TRNG 读取数据模块[color=rgba(0, 0, 0, 0.87)] [color=var(--md-typeset-a-color)] code" style="box-sizing: inherit; -webkit-tap-highlight-color: transparent; font-size: inherit; font-family: inherit; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-width: 0px; border-style: initial; border-color: initial; position: absolute; top: 0.5em; right: 0.5em; z-index: 1; width: 1.5em; height: 1.5em; border-radius: 0.1rem; outline: none; outline-offset: 0.1rem; cursor: pointer; transition: color 0.25s ease 0s;">uint32_t random[4 = {0};HAL_TRNG_Extract(0, random); // 读取 CRC 模式printf("trng CRC result: 0x%08x 0x%08x 0x%08x 0x%08x\n", random[0, random[1, random[2, random[3);HAL_TRNG_Extract(1, random); // 读取 XOR 模式printf("trng XOR result: 0x%08x 0x%08x 0x%08x 0x%08x\n", random[0, random[1, random[2, random[3);结果[color=rgba(0, 0, 0, 0.87)]编译固件后烧录,可以看到随机数输出。 [color=rgba(0, 0, 0, 0.87)] [color=var(--md-accent-fg-color)]
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