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< span class = "edit-link" style = "font-size:12px; opacity:0.6; text-align:right; vertical-align:middle" > < a target = "_blank" href = "http://aicdocco/taskstopics/sdk/d13x_bare_boot/init-config-prsam.dita" > Edit online< / a > < / span > < h1 class = "- topic/title title topictitle1" id = "ariaid-title1" > 初始化并使用 PSRAM< / h1 >
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< div class = "date inPage" > 16 May 2025< / div > < div style = "color: gray;" >
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Read time: 1 minute(s)
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< / div >
< div class = "- topic/body concept/conbody body conbody" > < p class = "- topic/shortdesc shortdesc" > < / p >
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< p class = "- topic/p p" data-ofbid = "d156522e30__20250519091522" > 对于合封 PSRAM 的芯片,如果需要使用 PSRAM, 可以使用 PBP 程序对 PSRAM 进行初始化。< / p >
< p class = "- topic/p p" data-ofbid = "d156522e33__20250519091522" > PBP 程序是 Boot ROM 运行的程序,设计为 Boot ROM 的扩展,用于做 DRAM/PSRAM 的初始化。 PBP 程序运行完之后,可以直接返回 Boot ROM
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然后继续跳转执行用户的程序。< / p >
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< div class = "- topic/p p" data-ofbid = "d156522e36__20250519091522" > 当前 PBP 程序可以完成以下功能:< ol class = "- topic/ol ol" id = "init-config-prsam__ul_ggg_g2r_gdc" data-ofbid = "init-config-prsam__ul_ggg_g2r_gdc" >
< li class = "- topic/li li" data-ofbid = "d156522e40__20250519091522" >
< div class = "- topic/p p" data-ofbid = "d156522e42__20250519091522" > 配置下列参数,完成 PSRAM 的初始化。< ul class = "- topic/ul ul" id = "init-config-prsam__ul_mc3_j2r_gdc" data-ofbid = "init-config-prsam__ul_mc3_j2r_gdc" >
< li class = "- topic/li li" data-ofbid = "d156522e46__20250519091522" >
< div class = "- topic/p p" data-ofbid = "d156522e48__20250519091522" > 需要使用下列工具:< ul class = "- topic/ul ul" id = "init-config-prsam__ul_jc5_j2r_gdc" data-ofbid = "init-config-prsam__ul_jc5_j2r_gdc" >
< li class = "- topic/li li" data-ofbid = "d156522e52__20250519091522" >
< p class = "- topic/p p" data-ofbid = "d156522e54__20250519091522" > tools/scripts/mk_image.py< / p >
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< / li >
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< li class = "- topic/li li" data-ofbid = "d156522e58__20250519091522" >
< p class = "- topic/p p" data-ofbid = "d156522e60__20250519091522" > tools/scripts/mk_private_resource.py< / p >
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< / li >
< / ul > < / div >
< / li >
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< li class = "- topic/li li" data-ofbid = "d156522e66__20250519091522" >
< div class = "- topic/p p" data-ofbid = "d156522e68__20250519091522" > 需要使用下列文件:< ul class = "- topic/ul ul" id = "init-config-prsam__ul_hzz_j2r_gdc" data-ofbid = "init-config-prsam__ul_hzz_j2r_gdc" >
< li class = "- topic/li li" data-ofbid = "d156522e72__20250519091522" >
< p class = "- topic/p p" data-ofbid = "d156522e74__20250519091522" > bsp/artinchip/sys/d13x/d13x.pbp< / p >
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< / li >
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< li class = "- topic/li li" data-ofbid = "d156522e78__20250519091522" >
< p class = "- topic/p p" data-ofbid = "d156522e80__20250519091522" > target/d13x/demo88-nor/pack/pbp_cfg.json< / p >
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< / li >
< / ul > < / div >
< / li >
< / ul > < / div >
< / li >
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< li class = "- topic/li li" data-ofbid = "d156522e88__20250519091522" > 配置启动镜像< div class = "- topic/p p" data-ofbid = "d156522e90__20250519091522" > 下列启动镜像 image_cfg.json
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文件的配置,可供参考:< pre class = "+ topic/pre pr-d/codeblock pre codeblock language-c" id = "init-config-prsam__codeblock_enq_22r_gdc" data-ofbid = "init-config-prsam__codeblock_enq_22r_gdc" > {
< span class = "hl-string" > "pre-process"< / span > : { < em class = "hl-comment" > // Pre-proccess to generate image components from raw data< / em >
< span class = "hl-string" > "aicimage"< / span > : { < em class = "hl-comment" > // Create aic boot image< / em >
< span class = "hl-string" > "app.aic"< / span > : {
< span class = "hl-string" > "loader"< / span > : {
< span class = "hl-string" > "file"< / span > : < span class = "hl-string" > "app.bin"< / span > ,
< span class = "hl-string" > "load address"< / span > : < span class = "hl-string" > "0x30044000"< / span > ,
< span class = "hl-string" > "entry point"< / span > : < span class = "hl-string" > "0x30044100"< / span > , < em class = "hl-comment" > // 256 byte aic header< / em >
},
< span class = "hl-string" > "resource"< / span > : {
< span class = "hl-string" > "pbp"< / span > : < span class = "hl-string" > "d13x.pbp"< / span > ,
< span class = "hl-string" > "private"< / span > : < span class = "hl-string" > "pbp_cfg.bin"< / span > ,
},
},
},
},
}
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< / pre > < / div > < / li >
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< li class = "- topic/li li" data-ofbid = "d156522e95__20250519091522" >
< p class = "- topic/p p" data-ofbid = "d156522e97__20250519091522" > < strong class = "+ topic/ph hi-d/b ph b" > 生成镜像< / strong >
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< / p >
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< div class = "- topic/p p" data-ofbid = "d156522e102__20250519091522" > 将上述文件放到一个目录:< ul class = "- topic/ul ul" id = "init-config-prsam__ul_ubs_n2r_gdc" data-ofbid = "init-config-prsam__ul_ubs_n2r_gdc" >
< li class = "- topic/li li" data-ofbid = "d156522e106__20250519091522" >
< p class = "- topic/p p" data-ofbid = "d156522e108__20250519091522" > app.bin< / p >
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< / li >
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< li class = "- topic/li li" data-ofbid = "d156522e112__20250519091522" >
< p class = "- topic/p p" data-ofbid = "d156522e114__20250519091522" > d13x.pbp< / p >
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< / li >
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< li class = "- topic/li li" data-ofbid = "d156522e118__20250519091522" >
< p class = "- topic/p p" data-ofbid = "d156522e120__20250519091522" > pbp_cfg.json< / p >
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< / li >
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< li class = "- topic/li li" data-ofbid = "d156522e124__20250519091522" >
< p class = "- topic/p p" data-ofbid = "d156522e126__20250519091522" > mk_image.py< / p >
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< / li >
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< li class = "- topic/li li" data-ofbid = "d156522e130__20250519091522" >
< p class = "- topic/p p" data-ofbid = "d156522e132__20250519091522" > mk_private_resource.py< / p >
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< / li >
< / ul > < pre class = "+ topic/pre pr-d/codeblock pre codeblock language-c" id = "init-config-prsam__codeblock_fnq_22r_gdc" data-ofbid = "init-config-prsam__codeblock_fnq_22r_gdc" > mk_private_resource.py -l pbp_cfg.json -o pbp_cfg.bin
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mk_image.py -p -c image_cfg.json -d .
< / pre > < / div >
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< p class = "- topic/p p" data-ofbid = "d156522e139__20250519091522" > 此时生成的 < span class = "+ topic/ph sw-d/filepath ph filepath" > app.aic< / span > 即包含了 PSRAM 初始化代码,并且在 < span class = "+ topic/ph sw-d/filepath ph filepath" > app.aic< / span >
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运行之前已经执行。< / p >
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< / li >
< / ol > < / div >
< / div >
< / article > < / main > < / div >
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< / div >
< / div >
< / div >
< / div >
< footer class = "navbar navbar-default wh_footer" >
< div class = " footer-container mx-auto " >
< title > footer def< / title >
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< style >
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.p1 {
font-family: FangZhengShuSong, Times, serif;
}
.p2 {
font-family: Arial, Helvetica, sans-serif;
}
.p3 {
font-family: "Lucida Console", "Courier New", monospace;
}
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< / style >
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< div class = "webhelp.fragment.footer" >
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< p class = "p1" > Copyright © 2019-2025 广东匠芯创科技有限公司. All rights reserved.< / p >
< / div >
< div >
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< div class = "generation_time" >
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Update Time: 2025-05-19
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< / div >
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< / div >
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< / div >
< / footer >
< div id = "go2top" class = "d-print-none" >
< span class = "oxy-icon oxy-icon-up" > < / span >
< / div >
< div id = "modal_img_large" class = "modal" >
< span class = "close oxy-icon oxy-icon-remove" > < / span >
< div id = "modal_img_container" > < / div >
< div id = "caption" > < / div >
< / div >
< script src = "${pd}/publishing/publishing-styles-AIC-template/js/custom.js" defer = "defer" > < / script >
< / body >
< / html >