<?xml version="1.0" encoding="UTF-8"?><rss xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:atom="http://www.w3.org/2005/Atom" version="2.0"><channel><title><![CDATA[通过GPIO配置选择DRAM参数]]></title><description><![CDATA[<p dir="auto">我的sys_config.fex文件关于DRAM配置如下。 我的目的是验证通过GPIO选择DRAM参数的功能，四个GPIO口悬空，上拉，应该会选择第15组参数，启动日志为：<br />
[207]HELLO! BOOT0 is starting!<br />
[210]BOOT0 commit : {1d640659}<br />
[214]board gpio withstand voltage auto mode<br />
<strong>[225]dram para15 invalid use default para<br />
[229]vaild para:15  select dram para0</strong>**<br />
[233]fdt returned -9<br />
[mmc]: mmc driver ver 2025-10-16 17:10<br />
[mmc]: Wrong media type 0x0<br />
[mmc]: <em><strong>Try SD card 0</strong></em><br />
[mmc]: HSSDR52/SDR25 4 bit<br />
[mmc]: 50000000 Hz<br />
[mmc]: 15080 MB</p>
<p dir="auto">看起来是GPIO识别对了，按时没找到第15组参数。是配置文件哪里写的不对吗</p>
<p dir="auto">;*****************************************************************************<br />
;sdram configuration<br />
;<br />
;*****************************************************************************<br />
[dram_para]<br />
dram_clk = 1800<br />
dram_type = 8<br />
dram_dx_odt = 0x08080808<br />
dram_dx_dri = 0x0e0e0e0e<br />
dram_ca_dri = 0x88030e0e<br />
dram_para0 = 0<br />
dram_para1 = 0x311a<br />
dram_para2 = 0x1001<br />
dram_mr0 = 0x0<br />
dram_mr1 = 0x8c<br />
dram_mr2 = 0<br />
dram_mr3 = 0x33<br />
dram_mr4 = 0x0<br />
dram_mr5 = 0<br />
dram_mr6 = 0<br />
dram_mr11 = 0x4<br />
dram_mr12 = 0x72<br />
dram_mr13 = 0x8<br />
dram_mr14 = 0x1d<br />
dram_mr16 = 0<br />
dram_mr17 = 0<br />
dram_mr22 = 0x24<br />
dram_tpr0 = 0<br />
dram_tpr1 = 0<br />
dram_tpr2 = 0x11080503<br />
dram_tpr3 = 0x200000<br />
dram_tpr6 = 0x402a<br />
dram_tpr10 = 0x721f0000<br />
dram_tpr11 = 0<br />
dram_tpr12 = 0<br />
dram_tpr13 = 0x64<br />
dram_tpr14 = 0</p>
<p dir="auto">[dram_para1]<br />
dram_clk = 1801<br />
dram_type = 8<br />
dram_dx_odt = 0x08080808<br />
dram_dx_dri = 0x0e0e0e0e<br />
dram_ca_dri = 0x88030e0e<br />
dram_para0 = 0<br />
dram_para1 = 0x311a<br />
dram_para2 = 0x1001<br />
dram_mr0 = 0x0<br />
dram_mr1 = 0x8c<br />
dram_mr2 = 0<br />
dram_mr3 = 0x33<br />
dram_mr4 = 0x0<br />
dram_mr5 = 0<br />
dram_mr6 = 0<br />
dram_mr11 = 0x4<br />
dram_mr12 = 0x72<br />
dram_mr13 = 0x8<br />
dram_mr14 = 0x1d<br />
dram_mr16 = 0<br />
dram_mr17 = 0<br />
dram_mr22 = 0x24<br />
dram_tpr0 = 0<br />
dram_tpr1 = 0<br />
dram_tpr2 = 0x11080503<br />
dram_tpr3 = 0x200000<br />
dram_tpr6 = 0x402a<br />
dram_tpr10 = 0x721f0000<br />
dram_tpr11 = 0<br />
dram_tpr12 = 0<br />
dram_tpr13 = 0x64<br />
dram_tpr14 = 0</p>
<p dir="auto">[dram_para2]<br />
dram_clk = 1802<br />
dram_type = 8<br />
dram_dx_odt = 0x08080808<br />
dram_dx_dri = 0x0e0e0e0e<br />
dram_ca_dri = 0x88030e0e<br />
dram_para0 = 0<br />
dram_para1 = 0x311a<br />
dram_para2 = 0x1001<br />
dram_mr0 = 0x0<br />
dram_mr1 = 0x8c<br />
dram_mr2 = 0<br />
dram_mr3 = 0x33<br />
dram_mr4 = 0x0<br />
dram_mr5 = 0<br />
dram_mr6 = 0<br />
dram_mr11 = 0x4<br />
dram_mr12 = 0x72<br />
dram_mr13 = 0x8<br />
dram_mr14 = 0x1d<br />
dram_mr16 = 0<br />
dram_mr17 = 0<br />
dram_mr22 = 0x24<br />
dram_tpr0 = 0<br />
dram_tpr1 = 0<br />
dram_tpr2 = 0x11080503<br />
dram_tpr3 = 0x200000<br />
dram_tpr6 = 0x402a<br />
dram_tpr10 = 0x721f0000<br />
dram_tpr11 = 0<br />
dram_tpr12 = 0<br />
dram_tpr13 = 0x64<br />
dram_tpr14 = 0</p>
<p dir="auto">[dram_para3]<br />
dram_clk = 1803<br />
dram_type = 8<br />
dram_dx_odt = 0x08080808<br />
dram_dx_dri = 0x0e0e0e0e<br />
dram_ca_dri = 0x88030e0e<br />
dram_para0 = 0<br />
dram_para1 = 0x311a<br />
dram_para2 = 0x1001<br />
dram_mr0 = 0x0<br />
dram_mr1 = 0x8c<br />
dram_mr2 = 0<br />
dram_mr3 = 0x33<br />
dram_mr4 = 0x0<br />
dram_mr5 = 0<br />
dram_mr6 = 0<br />
dram_mr11 = 0x4<br />
dram_mr12 = 0x72<br />
dram_mr13 = 0x8<br />
dram_mr14 = 0x1d<br />
dram_mr16 = 0<br />
dram_mr17 = 0<br />
dram_mr22 = 0x24<br />
dram_tpr0 = 0<br />
dram_tpr1 = 0<br />
dram_tpr2 = 0x11080503<br />
dram_tpr3 = 0x200000<br />
dram_tpr6 = 0x402a<br />
dram_tpr10 = 0x721f0000<br />
dram_tpr11 = 0<br />
dram_tpr12 = 0<br />
dram_tpr13 = 0x64<br />
dram_tpr14 = 0</p>
<p dir="auto">[dram_para4]<br />
dram_clk = 1804<br />
dram_type = 8<br />
dram_dx_odt = 0x08080808<br />
dram_dx_dri = 0x0e0e0e0e<br />
dram_ca_dri = 0x88030e0e<br />
dram_para0 = 0<br />
dram_para1 = 0x311a<br />
dram_para2 = 0x1001<br />
dram_mr0 = 0x0<br />
dram_mr1 = 0x8c<br />
dram_mr2 = 0<br />
dram_mr3 = 0x33<br />
dram_mr4 = 0x0<br />
dram_mr5 = 0<br />
dram_mr6 = 0<br />
dram_mr11 = 0x4<br />
dram_mr12 = 0x72<br />
dram_mr13 = 0x8<br />
dram_mr14 = 0x1d<br />
dram_mr16 = 0<br />
dram_mr17 = 0<br />
dram_mr22 = 0x24<br />
dram_tpr0 = 0<br />
dram_tpr1 = 0<br />
dram_tpr2 = 0x11080503<br />
dram_tpr3 = 0x200000<br />
dram_tpr6 = 0x402a<br />
dram_tpr10 = 0x721f0000<br />
dram_tpr11 = 0<br />
dram_tpr12 = 0<br />
dram_tpr13 = 0x64<br />
dram_tpr14 = 0</p>
<p dir="auto">[dram_para5]<br />
dram_clk = 1805<br />
dram_type = 8<br />
dram_dx_odt = 0x08080808<br />
dram_dx_dri = 0x0e0e0e0e<br />
dram_ca_dri = 0x88030e0e<br />
dram_para0 = 0<br />
dram_para1 = 0x311a<br />
dram_para2 = 0x1001<br />
dram_mr0 = 0x0<br />
dram_mr1 = 0x8c<br />
dram_mr2 = 0<br />
dram_mr3 = 0x33<br />
dram_mr4 = 0x0<br />
dram_mr5 = 0<br />
dram_mr6 = 0<br />
dram_mr11 = 0x4<br />
dram_mr12 = 0x72<br />
dram_mr13 = 0x8<br />
dram_mr14 = 0x1d<br />
dram_mr16 = 0<br />
dram_mr17 = 0<br />
dram_mr22 = 0x24<br />
dram_tpr0 = 0<br />
dram_tpr1 = 0<br />
dram_tpr2 = 0x11080503<br />
dram_tpr3 = 0x200000<br />
dram_tpr6 = 0x402a<br />
dram_tpr10 = 0x721f0000<br />
dram_tpr11 = 0<br />
dram_tpr12 = 0<br />
dram_tpr13 = 0x64<br />
dram_tpr14 = 0</p>
<p dir="auto">[dram_para6]<br />
dram_clk = 1806<br />
dram_type = 8<br />
dram_dx_odt = 0x08080808<br />
dram_dx_dri = 0x0e0e0e0e<br />
dram_ca_dri = 0x88030e0e<br />
dram_para0 = 0<br />
dram_para1 = 0x311a<br />
dram_para2 = 0x1001<br />
dram_mr0 = 0x0<br />
dram_mr1 = 0x8c<br />
dram_mr2 = 0<br />
dram_mr3 = 0x33<br />
dram_mr4 = 0x0<br />
dram_mr5 = 0<br />
dram_mr6 = 0<br />
dram_mr11 = 0x4<br />
dram_mr12 = 0x72<br />
dram_mr13 = 0x8<br />
dram_mr14 = 0x1d<br />
dram_mr16 = 0<br />
dram_mr17 = 0<br />
dram_mr22 = 0x24<br />
dram_tpr0 = 0<br />
dram_tpr1 = 0<br />
dram_tpr2 = 0x11080503<br />
dram_tpr3 = 0x200000<br />
dram_tpr6 = 0x402a<br />
dram_tpr10 = 0x721f0000<br />
dram_tpr11 = 0<br />
dram_tpr12 = 0<br />
dram_tpr13 = 0x64<br />
dram_tpr14 = 0</p>
<p dir="auto">[dram_para7]<br />
dram_clk = 1807<br />
dram_type = 8<br />
dram_dx_odt = 0x08080808<br />
dram_dx_dri = 0x0e0e0e0e<br />
dram_ca_dri = 0x88030e0e<br />
dram_para0 = 0<br />
dram_para1 = 0x311a<br />
dram_para2 = 0x1001<br />
dram_mr0 = 0x0<br />
dram_mr1 = 0x8c<br />
dram_mr2 = 0<br />
dram_mr3 = 0x33<br />
dram_mr4 = 0x0<br />
dram_mr5 = 0<br />
dram_mr6 = 0<br />
dram_mr11 = 0x4<br />
dram_mr12 = 0x72<br />
dram_mr13 = 0x8<br />
dram_mr14 = 0x1d<br />
dram_mr16 = 0<br />
dram_mr17 = 0<br />
dram_mr22 = 0x24<br />
dram_tpr0 = 0<br />
dram_tpr1 = 0<br />
dram_tpr2 = 0x11080503<br />
dram_tpr3 = 0x200000<br />
dram_tpr6 = 0x402a<br />
dram_tpr10 = 0x721f0000<br />
dram_tpr11 = 0<br />
dram_tpr12 = 0<br />
dram_tpr13 = 0x64<br />
dram_tpr14 = 0</p>
<p dir="auto">[dram_para8]<br />
dram_clk = 1808<br />
dram_type = 8<br />
dram_dx_odt = 0x08080808<br />
dram_dx_dri = 0x0e0e0e0e<br />
dram_ca_dri = 0x88030e0e<br />
dram_para0 = 0<br />
dram_para1 = 0x311a<br />
dram_para2 = 0x1001<br />
dram_mr0 = 0x0<br />
dram_mr1 = 0x8c<br />
dram_mr2 = 0<br />
dram_mr3 = 0x33<br />
dram_mr4 = 0x0<br />
dram_mr5 = 0<br />
dram_mr6 = 0<br />
dram_mr11 = 0x4<br />
dram_mr12 = 0x72<br />
dram_mr13 = 0x8<br />
dram_mr14 = 0x1d<br />
dram_mr16 = 0<br />
dram_mr17 = 0<br />
dram_mr22 = 0x24<br />
dram_tpr0 = 0<br />
dram_tpr1 = 0<br />
dram_tpr2 = 0x11080503<br />
dram_tpr3 = 0x200000<br />
dram_tpr6 = 0x402a<br />
dram_tpr10 = 0x721f0000<br />
dram_tpr11 = 0<br />
dram_tpr12 = 0<br />
dram_tpr13 = 0x64<br />
dram_tpr14 = 0</p>
<p dir="auto">[dram_para9]<br />
dram_clk = 1809<br />
dram_type = 8<br />
dram_dx_odt = 0x08080808<br />
dram_dx_dri = 0x0e0e0e0e<br />
dram_ca_dri = 0x88030e0e<br />
dram_para0 = 0<br />
dram_para1 = 0x311a<br />
dram_para2 = 0x1001<br />
dram_mr0 = 0x0<br />
dram_mr1 = 0x8c<br />
dram_mr2 = 0<br />
dram_mr3 = 0x33<br />
dram_mr4 = 0x0<br />
dram_mr5 = 0<br />
dram_mr6 = 0<br />
dram_mr11 = 0x4<br />
dram_mr12 = 0x72<br />
dram_mr13 = 0x8<br />
dram_mr14 = 0x1d<br />
dram_mr16 = 0<br />
dram_mr17 = 0<br />
dram_mr22 = 0x24<br />
dram_tpr0 = 0<br />
dram_tpr1 = 0<br />
dram_tpr2 = 0x11080503<br />
dram_tpr3 = 0x200000<br />
dram_tpr6 = 0x402a<br />
dram_tpr10 = 0x721f0000<br />
dram_tpr11 = 0<br />
dram_tpr12 = 0<br />
dram_tpr13 = 0x64<br />
dram_tpr14 = 0</p>
<p dir="auto">[dram_para10]<br />
dram_clk = 1810<br />
dram_type = 8<br />
dram_dx_odt = 0x08080808<br />
dram_dx_dri = 0x0e0e0e0e<br />
dram_ca_dri = 0x88030e0e<br />
dram_para0 = 0<br />
dram_para1 = 0x311a<br />
dram_para2 = 0x1001<br />
dram_mr0 = 0x0<br />
dram_mr1 = 0x8c<br />
dram_mr2 = 0<br />
dram_mr3 = 0x33<br />
dram_mr4 = 0x0<br />
dram_mr5 = 0<br />
dram_mr6 = 0<br />
dram_mr11 = 0x4<br />
dram_mr12 = 0x72<br />
dram_mr13 = 0x8<br />
dram_mr14 = 0x1d<br />
dram_mr16 = 0<br />
dram_mr17 = 0<br />
dram_mr22 = 0x24<br />
dram_tpr0 = 0<br />
dram_tpr1 = 0<br />
dram_tpr2 = 0x11080503<br />
dram_tpr3 = 0x200000<br />
dram_tpr6 = 0x402a<br />
dram_tpr10 = 0x721f0000<br />
dram_tpr11 = 0<br />
dram_tpr12 = 0<br />
dram_tpr13 = 0x64<br />
dram_tpr14 = 0</p>
<p dir="auto">[dram_para11]<br />
dram_clk = 1811<br />
dram_type = 8<br />
dram_dx_odt = 0x08080808<br />
dram_dx_dri = 0x0e0e0e0e<br />
dram_ca_dri = 0x88030e0e<br />
dram_para0 = 0<br />
dram_para1 = 0x311a<br />
dram_para2 = 0x1001<br />
dram_mr0 = 0x0<br />
dram_mr1 = 0x8c<br />
dram_mr2 = 0<br />
dram_mr3 = 0x33<br />
dram_mr4 = 0x0<br />
dram_mr5 = 0<br />
dram_mr6 = 0<br />
dram_mr11 = 0x4<br />
dram_mr12 = 0x72<br />
dram_mr13 = 0x8<br />
dram_mr14 = 0x1d<br />
dram_mr16 = 0<br />
dram_mr17 = 0<br />
dram_mr22 = 0x24<br />
dram_tpr0 = 0<br />
dram_tpr1 = 0<br />
dram_tpr2 = 0x11080503<br />
dram_tpr3 = 0x200000<br />
dram_tpr6 = 0x402a<br />
dram_tpr10 = 0x721f0000<br />
dram_tpr11 = 0<br />
dram_tpr12 = 0<br />
dram_tpr13 = 0x64<br />
dram_tpr14 = 0</p>
<p dir="auto">[dram_para12]<br />
dram_clk = 1812<br />
dram_type = 8<br />
dram_dx_odt = 0x08080808<br />
dram_dx_dri = 0x0e0e0e0e<br />
dram_ca_dri = 0x88030e0e<br />
dram_para0 = 0<br />
dram_para1 = 0x311a<br />
dram_para2 = 0x1001<br />
dram_mr0 = 0x0<br />
dram_mr1 = 0x8c<br />
dram_mr2 = 0<br />
dram_mr3 = 0x33<br />
dram_mr4 = 0x0<br />
dram_mr5 = 0<br />
dram_mr6 = 0<br />
dram_mr11 = 0x4<br />
dram_mr12 = 0x72<br />
dram_mr13 = 0x8<br />
dram_mr14 = 0x1d<br />
dram_mr16 = 0<br />
dram_mr17 = 0<br />
dram_mr22 = 0x24<br />
dram_tpr0 = 0<br />
dram_tpr1 = 0<br />
dram_tpr2 = 0x11080503<br />
dram_tpr3 = 0x200000<br />
dram_tpr6 = 0x402a<br />
dram_tpr10 = 0x721f0000<br />
dram_tpr11 = 0<br />
dram_tpr12 = 0<br />
dram_tpr13 = 0x64<br />
dram_tpr14 = 0</p>
<p dir="auto">[dram_para13]<br />
dram_clk = 1813<br />
dram_type = 8<br />
dram_dx_odt = 0x08080808<br />
dram_dx_dri = 0x0e0e0e0e<br />
dram_ca_dri = 0x88030e0e<br />
dram_para0 = 0<br />
dram_para1 = 0x311a<br />
dram_para2 = 0x1001<br />
dram_mr0 = 0x0<br />
dram_mr1 = 0x8c<br />
dram_mr2 = 0<br />
dram_mr3 = 0x33<br />
dram_mr4 = 0x0<br />
dram_mr5 = 0<br />
dram_mr6 = 0<br />
dram_mr11 = 0x4<br />
dram_mr12 = 0x72<br />
dram_mr13 = 0x8<br />
dram_mr14 = 0x1d<br />
dram_mr16 = 0<br />
dram_mr17 = 0<br />
dram_mr22 = 0x24<br />
dram_tpr0 = 0<br />
dram_tpr1 = 0<br />
dram_tpr2 = 0x11080503<br />
dram_tpr3 = 0x200000<br />
dram_tpr6 = 0x402a<br />
dram_tpr10 = 0x721f0000<br />
dram_tpr11 = 0<br />
dram_tpr12 = 0<br />
dram_tpr13 = 0x64<br />
dram_tpr14 = 0</p>
<p dir="auto">[dram_para14]<br />
dram_clk = 1814<br />
dram_type = 8<br />
dram_dx_odt = 0x08080808<br />
dram_dx_dri = 0x0e0e0e0e<br />
dram_ca_dri = 0x88030e0e<br />
dram_para0 = 0<br />
dram_para1 = 0x311a<br />
dram_para2 = 0x1001<br />
dram_mr0 = 0x0<br />
dram_mr1 = 0x8c<br />
dram_mr2 = 0<br />
dram_mr3 = 0x33<br />
dram_mr4 = 0x0<br />
dram_mr5 = 0<br />
dram_mr6 = 0<br />
dram_mr11 = 0x4<br />
dram_mr12 = 0x72<br />
dram_mr13 = 0x8<br />
dram_mr14 = 0x1d<br />
dram_mr16 = 0<br />
dram_mr17 = 0<br />
dram_mr22 = 0x24<br />
dram_tpr0 = 0<br />
dram_tpr1 = 0<br />
dram_tpr2 = 0x11080503<br />
dram_tpr3 = 0x200000<br />
dram_tpr6 = 0x402a<br />
dram_tpr10 = 0x721f0000<br />
dram_tpr11 = 0<br />
dram_tpr12 = 0<br />
dram_tpr13 = 0x64<br />
dram_tpr14 = 0</p>
<p dir="auto">[dram_para15]<br />
dram_clk = 1815<br />
dram_type = 8<br />
dram_dx_odt = 0x08080808<br />
dram_dx_dri = 0x0e0e0e0e<br />
dram_ca_dri = 0x88030e0e<br />
dram_para0 = 0<br />
dram_para1 = 0x311a<br />
dram_para2 = 0x1001<br />
dram_mr0 = 0x0<br />
dram_mr1 = 0x8c<br />
dram_mr2 = 0<br />
dram_mr3 = 0x33<br />
dram_mr4 = 0x0<br />
dram_mr5 = 0<br />
dram_mr6 = 0<br />
dram_mr11 = 0x4<br />
dram_mr12 = 0x72<br />
dram_mr13 = 0x8<br />
dram_mr14 = 0x1d<br />
dram_mr16 = 0<br />
dram_mr17 = 0<br />
dram_mr22 = 0x24<br />
dram_tpr0 = 0<br />
dram_tpr1 = 0<br />
dram_tpr2 = 0x11080503<br />
dram_tpr3 = 0x200000<br />
dram_tpr6 = 0x402a<br />
dram_tpr10 = 0x721f0000<br />
dram_tpr11 = 0<br />
dram_tpr12 = 0<br />
dram_tpr13 = 0x64<br />
dram_tpr14 = 0</p>
]]></description><link>https://bbs.aw-ol.com/topic/7038/通过gpio配置选择dram参数</link><generator>RSS for Node</generator><lastBuildDate>Mon, 15 Jun 2026 18:54:41 GMT</lastBuildDate><atom:link href="https://bbs.aw-ol.com/topic/7038.rss" rel="self" type="application/rss+xml"/><pubDate>Mon, 08 Jun 2026 12:21:27 GMT</pubDate><ttl>60</ttl></channel></rss>