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<?xml-stylesheet type="text/xsl" href="https://e2echina.ti.com/cfs-file/__key/system/syndication/rss.xsl" media="screen"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/" xmlns:wfw="http://wellformedweb.org/CommentAPI/" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>处理器论坛 - 最近的话题</title><link>https://e2echina.ti.com/support/processors/f/processors-forum</link><description /><dc:language>zh-CN</dc:language><generator>Telligent Community 13</generator><lastBuildDate>Fri, 09 Oct 2026 09:07:03 GMT</lastBuildDate><atom:link rel="self" type="application/rss+xml" href="https://e2echina.ti.com/support/processors/f/processors-forum" /><item><title>TMS320F28377D: TI的工程师你好，我想咨询一下28377D的高速SPI最快速率能达到多少？</title><link>https://e2echina.ti.com/thread/1097874?ContentTypeID=0</link><pubDate>Fri, 09 Oct 2026 08:04:32 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:b8ebcaf1-f9fd-4e5a-b66c-37483522fbfe</guid><dc:creator>xiongyy</dc:creator><slash:comments>2</slash:comments><comments>https://e2echina.ti.com/thread/1097874?ContentTypeID=0</comments><wfw:commentRss>https://e2echina.ti.com/support/processors/f/processors-forum/1097874/tms320f28377d-ti-28377d-spi/rss?ContentTypeId=0</wfw:commentRss><description>&lt;p&gt;&lt;b&gt;Part Number:&lt;/b&gt; TMS320F28377D&lt;/p&gt;&lt;p&gt;&lt;img src="https://e2echina.ti.com/cfs-file/__key/communityserver-discussions-components-files/120/5238.image.png" alt="image.png" data-temp-id="image.png-115535" /&gt;&lt;/p&gt;
&lt;p&gt;如图所示，我看手册上面写只能达到40MHz，但是我记得中文手册说能达到50MHz吗？&lt;br /&gt;然后我还想咨询一下配置高速SPI有没有什么需要注意的地方？是只有图上的GPIO口能配置为高速SPI吗？感谢&lt;/p&gt;</description></item><item><title>RE: TMS320F28377D: TI的工程师你好，我想咨询一下28377D的高速SPI最快速率能达到多少？</title><link>https://e2echina.ti.com/thread/3951414?ContentTypeID=1</link><pubDate>Fri, 09 Oct 2026 09:07:03 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:f97935b0-3418-4697-bacf-77d5b191878e</guid><dc:creator>xiongyy</dc:creator><slash:comments>0</slash:comments><comments>https://e2echina.ti.com/thread/3951414?ContentTypeID=1</comments><wfw:commentRss>https://e2echina.ti.com/support/processors/f/processors-forum/1097874/tms320f28377d-ti-28377d-spi/rss?ContentTypeId=0</wfw:commentRss><description>&lt;p&gt;还有一个问题，内部环回的话，信号输入输出引脚会有波形吗？因为我是想验证SPI模块的最大速率&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: TMS320F28377D: TI的工程师你好，我想咨询一下28377D的高速SPI最快速率能达到多少？</title><link>https://e2echina.ti.com/thread/3951410?ContentTypeID=1</link><pubDate>Fri, 09 Oct 2026 08:12:50 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:d14db8a4-f8a4-4468-af7b-05edb22d99e7</guid><dc:creator>FRANK1</dc:creator><slash:comments>1</slash:comments><comments>https://e2echina.ti.com/thread/3951410?ContentTypeID=1</comments><wfw:commentRss>https://e2echina.ti.com/support/processors/f/processors-forum/1097874/tms320f28377d-ti-28377d-spi/rss?ContentTypeId=0</wfw:commentRss><description>&lt;p&gt;感谢您对TI产品的关注！&lt;br /&gt;关于你的咨询，我们正在确认您的问题，感谢您的耐心等待。&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: TMS320F28388S: Implementation of EnDat 2.2 Using F28388S</title><link>https://e2echina.ti.com/thread/3951404?ContentTypeID=1</link><pubDate>Fri, 09 Oct 2026 06:44:17 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:6229013b-9243-4a3f-b696-c9155a143f88</guid><dc:creator>Vivian Gao</dc:creator><slash:comments>0</slash:comments><comments>https://e2echina.ti.com/thread/3951404?ContentTypeID=1</comments><wfw:commentRss>https://e2echina.ti.com/support/processors/f/processors-forum/1097865/tms320f28388s-implementation-of-endat-2-2-using-f28388s/rss?ContentTypeId=0</wfw:commentRss><description>&lt;p&gt;Thank you for your attention to TI products. We are verifying your issue, please wait for our reply.&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>TMS320F28388S: Implementation of EnDat 2.2 Using F28388S</title><link>https://e2echina.ti.com/thread/1097865?ContentTypeID=0</link><pubDate>Fri, 09 Oct 2026 06:24:34 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:984e2a7e-73b9-4860-a29e-12cb22e3024d</guid><dc:creator>zhan soong</dc:creator><slash:comments>1</slash:comments><comments>https://e2echina.ti.com/thread/1097865?ContentTypeID=0</comments><wfw:commentRss>https://e2echina.ti.com/support/processors/f/processors-forum/1097865/tms320f28388s-implementation-of-endat-2-2-using-f28388s/rss?ContentTypeId=0</wfw:commentRss><description>&lt;p&gt;&lt;b&gt;Part Number:&lt;/b&gt; TMS320F28388S&lt;/p&gt;&lt;p&gt;I am developing a motor control application using the TMS320F28388S microcontroller. I need to implement an EnDat 2.2 absolute encoder master interface.&lt;br /&gt;&lt;br /&gt;I have been trying to use the PM_endat22_lib.lib library that is typically provided for the F2837x series. However, I encountered a fundamental compatibility issue:&lt;br /&gt;&lt;br /&gt;My project uses the EABI output format (--abi=eabi), as required for F28388S.&lt;br /&gt;&lt;br /&gt;The available PM_endat22_lib.lib is compiled in TI-COFF format.&lt;br /&gt;&lt;br /&gt;The linker reports: warning #10373-D: library contains TI-COFF object files which are incompatible with the ELF output file.&lt;br /&gt;&lt;br /&gt;As a result, all EnDat22 functions (PM_endat22_setupPeriph, PM_endat22_setFreq, PM_endat22_setupCommand, PM_endat22_startOperation, PM_endat22_receiveData, CheckCRC, etc.) remain unresolved.&lt;br /&gt;&lt;br /&gt;I have searched the C2000Ware MotorControl SDK 6.00.00.00 and found only documentation (e.g., TIDUDE3A, SPRU135) and reference designs, but no EABI-compatible library or source code for the EnDat22 protocol stack. I also checked the TI E2E forums and found related discussions, but no definitive solution for F28388S.&lt;br /&gt;&lt;br /&gt;My request:&lt;br /&gt;&lt;br /&gt;Is there an EABI-compatible version of the PM_endat22_lib.lib library available for the F28388S?&lt;br /&gt;&lt;br /&gt;If not, can TI provide the source code of the EnDat22 library so I can recompile it for EABI?&lt;br /&gt;&lt;br /&gt;If neither is available, is there any migration guide or recommended approach to port the EnDat22 protocol stack from F2837x to F28388S?&lt;br /&gt;&lt;br /&gt;Are there any alternative solutions (e.g., a different library, a reference design with source, or a third-party protocol stack) that TI recommends for EnDat 2.2 on F28388S?&lt;br /&gt;&lt;br /&gt;I understand that the F28388S has a CLB (Configurable Logic Block) that can be used to implement custom serial interfaces. I am willing to implement the protocol manually if necessary, but I would greatly appreciate any official library or source code to accelerate development and ensure reliability.&lt;/p&gt;
&lt;div&gt;
&lt;div&gt;
&lt;div data-virtual-list-item-key="40"&gt;
&lt;div&gt;
&lt;div&gt;
&lt;p&gt;Our project was successfully implemented on the F28379S, but now due to CAN FD requirements we need to switch to the F28388S. However, because I previously developed using the EnDat22 library for the F28379D, and I personally do not know how to configure the CLB for EnDat22, I can only use the lib library. For this reason, I used the same pins as the F28379D example.&lt;/p&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;div&gt;&amp;nbsp;&lt;/div&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;</description></item><item><title>RE: DRA821U-Q1: DRA821U-Q1 的PCIE，能否从serdes lane2开始绑定</title><link>https://e2echina.ti.com/thread/3945606?ContentTypeID=1</link><pubDate>Fri, 25 Sep 2026 15:53:59 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:d964cd89-02fb-4e92-bfd7-fe41c0507fef</guid><dc:creator>Takuma Fujiwara</dc:creator><slash:comments>0</slash:comments><comments>https://e2echina.ti.com/thread/3945606?ContentTypeID=1</comments><wfw:commentRss>https://e2echina.ti.com/support/processors/f/processors-forum/1095579/dra821u-q1-dra821u-q1-pcie-serdes-lane2/rss?ContentTypeId=0</wfw:commentRss><description>&lt;div lang="zh-x-mtfrom-en"&gt;
 &lt;p&gt;相关帖子链接：&lt;/p&gt;
 &lt;p&gt;&lt;a href="https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1684646/dra821-can-single-lane-pcie-use-any-lane/6492523"&gt;回复：DRA821：单通道 PCIe 能否使用任意通道&lt;/a&gt;&lt;/p&gt;
 &lt;p&gt;问候，&lt;/p&gt;
 &lt;p&gt;拓真&lt;/p&gt;
 &lt;div style="clear:both;"&gt;&lt;/div&gt;
&lt;/div&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>DRA821U-Q1: DRA821U-Q1 的PCIE，能否从serdes lane2开始绑定</title><link>https://e2echina.ti.com/thread/1095579?ContentTypeID=0</link><pubDate>Wed, 23 Sep 2026 11:58:47 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:0201f394-358d-4453-b425-fae9f4f054de</guid><dc:creator>?? ?</dc:creator><slash:comments>2</slash:comments><comments>https://e2echina.ti.com/thread/1095579?ContentTypeID=0</comments><wfw:commentRss>https://e2echina.ti.com/support/processors/f/processors-forum/1095579/dra821u-q1-dra821u-q1-pcie-serdes-lane2/rss?ContentTypeId=0</wfw:commentRss><description>&lt;p&gt;&lt;b&gt;Part Number:&lt;/b&gt; DRA821U-Q1&lt;/p&gt;&lt;p&gt;目前硬件设计&lt;/p&gt;
&lt;pre id="codecell2"&gt;SERDES0 RX0/TX0 |--&amp;gt; to sgmii&lt;br /&gt;SERDES0 RX1/TX1 |--&amp;gt; 浮空&lt;br /&gt;SERDES0 RX2/TX2 |--&amp;gt; to PCIE 1lane&lt;br /&gt;SERDES0 RX3/TX3 |--&amp;gt; to sgmii&lt;br /&gt;设备树启用PCIE并绑定Lane2，linux 内核出现panic&lt;br /&gt;[0.119956] rtc-rx8581 1-0051: setting system clock to 2026-09-23T16:12:04 UTC (1790179924)&lt;br /&gt;[0.120030] omap_i2c 2010000.i2c: bus 1 rev0.12 at 400 kHz&lt;br /&gt;[0.120195] ti-sci-intr 42200000.interrupt-controller: Interrupt Router 137 domain created&lt;br /&gt;[0.120289] ti-sci-intr bus@100000:interrupt-controller@a00000: Interrupt Router 131 domain created&lt;br /&gt;[0.120380] ti-sci-intr 310e0000.interrupt-controller: Interrupt Router 213 domain created&lt;br /&gt;[0.120547] ti-sci-inta 33d00000.msi-controller: Interrupt Aggregator domain 209 created&lt;br /&gt;[0.123282] k3-ringacc 2b800000.ringacc: Ring Accelerator probed rings:286, gp-rings[96,32] sci-dev-id:235&lt;br /&gt;[0.123288] k3-ringacc 2b800000.ringacc: dma-ring-reset-quirk: disabled&lt;br /&gt;[0.123291] k3-ringacc 2b800000.ringacc: RA Proxy rev. 66349100, num_proxies:64&lt;br /&gt;[0.126753] k3-ringacc 3c000000.ringacc: Ring Accelerator probed rings:1024, gp-rings[120,200] sci-dev-id:211&lt;br /&gt;[0.126761] k3-ringacc 3c000000.ringacc: dma-ring-reset-quirk: disabled&lt;br /&gt;[0.126763] k3-ringacc 3c000000.ringacc: RA Proxy rev. 66349100, num_proxies:64&lt;br /&gt;[0.127232] printk: console [ttyS2] disabled&lt;br /&gt;[0.127268] 2800000.serial: ttyS2 at MMIO 0x2800000 (irq = 251, base_baud = 3000000) is a 8250&lt;br /&gt;[0.127411] printk: console [ttyS2] printing thread started&lt;br /&gt;[0.127424] printk: console [ttyS2] enabled&lt;br /&gt;[0.128242] 2810000.serial: ttyS3 at MMIO 0x2810000 (irq = 252, base_baud = 3000000) is a 8250&lt;br /&gt;[0.129724] davinci_mdio c000f00.mdio: Configuring MDIO in manual mode&lt;br /&gt;[0.163822] davinci_mdio c000f00.mdio: davinci mdio revision 9.7, bus freq 1000000&lt;br /&gt;[0.170262] davinci_mdio c000f00.mdio: phy[1]: device c000f00.mdio:01, driver Microchip KSZ9131 Gigabit PHY&lt;br /&gt;[0.170267] davinci_mdio c000f00.mdio: phy[2]: device c000f00.mdio:02, driver Microchip KSZ9131 Gigabit PHY&lt;br /&gt;[0.170270] davinci_mdio c000f00.mdio: phy[3]: device c000f00.mdio:03, driver RTL8211F Gigabit Ethernet&lt;br /&gt;[0.170293] am65-cpsw-nuss c000000.ethernet: initializing am65 cpsw nuss version 0x6BA02102, cpsw version 0x6BA82102 Ports: 5 quirks:00000000&lt;br /&gt;[0.170392] am65-cpsw-nuss c000000.ethernet: Use random MAC address&lt;br /&gt;[0.170406] am65-cpsw-nuss c000000.ethernet: initialized cpsw ale version 1.4&lt;br /&gt;[0.170408] am65-cpsw-nuss c000000.ethernet: ALE Table size 512&lt;br /&gt;[0.170760] am65-cpsw-nuss c000000.ethernet: CPTS ver 0x4e8a010b, freq:200000000, add_val:4 pps:0&lt;br /&gt;[0.173063] am65-cpts 310d0000.cpts: CPTS ver 0x4e8a010b, freq:200000000, add_val:4 pps:0&lt;br /&gt;[0.275017] mmc0: CQHCI version 5.10&lt;br /&gt;[0.277843] omap-mailbox 31f80000.mailbox: omap mailbox rev 0x66fc8900&lt;br /&gt;[0.278176] omap-mailbox 31f81000.mailbox: omap mailbox rev 0x66fc8900&lt;br /&gt;[0.279196] j721e-pcie-host 2910000.pcie: host bridge /bus@100000/pcie@2910000 ranges:&lt;br /&gt;[0.279209] j721e-pcie-host 2910000.pcie: Parsing ranges property...&lt;br /&gt;[0.279221] j721e-pcie-host 2910000.pcie: &amp;nbsp; &amp;nbsp; &amp;nbsp; IO 0x0018001000..0x0018010fff -&amp;gt; 0x0018001000&lt;br /&gt;[0.279235] j721e-pcie-host 2910000.pcie: &amp;nbsp; &amp;nbsp; &amp;nbsp;MEM 0x0018011000..0x001fffffff -&amp;gt; 0x0018011000&lt;br /&gt;[0.279241] j721e-pcie-host 2910000.pcie: Parsing dma-ranges property...&lt;br /&gt;[0.279247] j721e-pcie-host 2910000.pcie: &amp;nbsp; IB MEM 0x0000000000..0xffffffffffff -&amp;gt; 0x0000000000&lt;br /&gt;[0.282657] SError Interrupt on CPU0, code 0x00000000bf000000 -- SError&lt;br /&gt;[0.282663] CPU: 0 PID: 50 Comm: kworker/u4:2 Not tainted 6.1.83-rt28-344047-g8e9966230a20-dirty #74&lt;br /&gt;[0.282667] Hardware name: Texas Instruments J7200 EVM (DT)&lt;br /&gt;[0.282670] Workqueue: events_unbound deferred_probe_work_func&lt;br /&gt;[0.282688] pstate: 80000005 (Nzcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)&lt;br /&gt;[0.282692] pc : cdns_pcie_detect_quiet_min_delay_set+0x18/0x48&lt;br /&gt;[0.282700] lr : cdns_pcie_host_setup+0x628/0xa30&lt;br /&gt;[0.282703] sp : ffff800009573a50&lt;br /&gt;[0.282705] x29: ffff800009573a50 x28: 0000000000000000 x27: ffff000801ddb980&lt;br /&gt;[0.282710] x26: 0000000000000000 x25: 000000000000ffff x24: ffff00087f814a68&lt;br /&gt;[0.282714] x23: 0000000000000000 x22: ffff0008003bbbc0 x21: ffff000800127010&lt;br /&gt;[0.282718] x20: ffff800008bc4000 x19: ffff000801c7b3c0 x18: 0000000000000000&lt;br /&gt;[0.282722] x17: 0000000070d08223 x16: 00000000d8c4caca x15: 0000000000000001&lt;br /&gt;[0.282726] x14: ffff800008bc4000 x13: 000000000007939d x12: 0101010101010101&lt;br /&gt;[0.282730] x11: ffff800009101000 x10: 0000000018000000 x9 : 0000000000000000&lt;br /&gt;[0.282733] x8 : 006800000000070f x7 : 0040000000000001 x6 : ffff800008ebc590&lt;br /&gt;[0.282737] x5 : ffff00087fffe240 x4 : ffff0008001272d0 x3 : ffff000800c95580&lt;br /&gt;[0.282741] x2 : 0000000000100054 x1 : 0000000000000000 x0 : ffff000801c7b3c0&lt;br /&gt;[0.282746] Kernel panic - not syncing: Asynchronous SError Interrupt&lt;br /&gt;[0.282748] CPU: 0 PID: 50 Comm: kworker/u4:2 Not tainted 6.1.83-rt28-344047-g8e9966230a20-dirty #74&lt;br /&gt;&lt;br /&gt;是否PCIE只能从Lane0开始？&lt;/pre&gt;</description></item><item><title>AM5728: AM5728实现IEEE1588协议的一些疑问</title><link>https://e2echina.ti.com/thread/1094071?ContentTypeID=0</link><pubDate>Fri, 11 Sep 2026 03:03:21 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:f16b62d3-d38c-41f1-ad09-c37dd81d4716</guid><dc:creator>chen geng</dc:creator><slash:comments>19</slash:comments><comments>https://e2echina.ti.com/thread/1094071?ContentTypeID=0</comments><wfw:commentRss>https://e2echina.ti.com/support/processors/f/processors-forum/1094071/am5728-am5728-ieee1588/rss?ContentTypeId=0</wfw:commentRss><description>&lt;p&gt;&lt;b&gt;Part Number:&lt;/b&gt; AM5728&lt;/p&gt;&lt;p&gt;看了AM5728的手册，EAMC支持IEEE1588协议，但是在TRM上第24.11.4.10章节里，关于CPTS的介绍感觉比较浅，比如下面两个截图，看样子时间戳的时间应该来至定时器TIMER13--16中的一个，但是怎么配置相关的定时器，以及截图二中portimerpwm，是什么样的接口，都没有进一步说明。然后协议层面，时间戳值是如何从选择的定时器加载到数据包里面的，似乎也没有相关介绍。最后，我在网上搜索了下，好像说是AM5728对IEEE1588的支持，只是支持AVB音视频桥接方面，要真正完整支持IEEE1588，是要在PRU-ICSS端去实现的，不知道是不是这样。&lt;/p&gt;
&lt;p&gt;&lt;img src="https://e2echina.ti.com/cfs-file/__key/communityserver-discussions-components-files/120/8551.image.png" alt="image.png" data-temp-id="image.png-85875" /&gt;&lt;/p&gt;
&lt;p&gt;&lt;img src="https://e2echina.ti.com/cfs-file/__key/communityserver-discussions-components-files/120/3264.image.png" alt="image.png" data-temp-id="image.png-55658" /&gt;&lt;/p&gt;</description></item><item><title>RE: AM5728: AM5728实现IEEE1588协议的一些疑问</title><link>https://e2echina.ti.com/thread/3944002?ContentTypeID=1</link><pubDate>Fri, 25 Sep 2026 01:07:49 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:1475c52f-fb72-404d-bf69-2ad7789490d1</guid><dc:creator>chen geng</dc:creator><slash:comments>0</slash:comments><comments>https://e2echina.ti.com/thread/3944002?ContentTypeID=1</comments><wfw:commentRss>https://e2echina.ti.com/support/processors/f/processors-forum/1094071/am5728-am5728-ieee1588/rss?ContentTypeId=0</wfw:commentRss><description>&lt;p&gt;非常感谢，我好好看看这些文档资料&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: AM5728: AM5728实现IEEE1588协议的一些疑问</title><link>https://e2echina.ti.com/thread/3943954?ContentTypeID=1</link><pubDate>Fri, 25 Sep 2026 00:40:22 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:ee7ec8a6-39e3-4bba-a618-db2e50c517f3</guid><dc:creator>Misael Lopez Cruz</dc:creator><slash:comments>1</slash:comments><comments>https://e2echina.ti.com/thread/3943954?ContentTypeID=1</comments><wfw:commentRss>https://e2echina.ti.com/support/processors/f/processors-forum/1094071/am5728-am5728-ieee1588/rss?ContentTypeId=0</wfw:commentRss><description>&lt;div lang="zh-x-mtfrom-en"&gt;
 &lt;p&gt;此 SDK 包含 Josue 在其之前的帖子中指出的 GMACSW 驱动程序： &lt;a id="" href="https://www.ti.com/tool/download/PROCESSOR-SDK-VISION/03.08.00.00"&gt;https://www.ti.com/tool/download/PROCESSOR-SDK-VISION/03.08.00.00&lt;/a&gt; 。&lt;/p&gt;
 &lt;p&gt;我强烈建议您使用 NSP 驱动程序作为参考。&lt;/p&gt;
 &lt;p&gt;&lt;a href="https://e2echina.ti.com/cfs-file/__key/communityserver-discussions-components-files/120/pastedimage1790296445913v1.png"&gt;&lt;img src="https://e2echina.ti.com/cfs-filesystemfile/__key/communityserver-components-secureimagefileviewer/communityserver-discussions-components-files-120/pastedimage1790296445913v1.png_2D00_640x480.png?_=639258936286448070" style="max-height: 480px;max-width: 640px;" /&gt;&lt;/a&gt;&lt;/p&gt;
 &lt;div style="clear:both;"&gt;&lt;/div&gt;
&lt;/div&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: AM5728: AM5728实现IEEE1588协议的一些疑问</title><link>https://e2echina.ti.com/thread/3943265?ContentTypeID=1</link><pubDate>Thu, 24 Sep 2026 17:05:47 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:d5e6dd8b-f103-4b46-a9a8-1c888e8a4e3d</guid><dc:creator>Josue Zamitiz-Ayala</dc:creator><slash:comments>0</slash:comments><comments>https://e2echina.ti.com/thread/3943265?ContentTypeID=1</comments><wfw:commentRss>https://e2echina.ti.com/support/processors/f/processors-forum/1094071/am5728-am5728-ieee1588/rss?ContentTypeId=0</wfw:commentRss><description>&lt;div lang="zh-x-mtfrom-en"&gt;
 &lt;p&gt;请查阅汽车行业相关版本，并参考 CPTS 文档以获取更详细的指导。本论坛不涉及从零开始编写裸机驱动程序。&lt;/p&gt;
 &lt;p&gt;&lt;a href="https://www.ti.com/tool/PROCESSOR-SDK-TDAX#downloads"&gt;https://www.ti.com/tool/PROCESSOR-SDK-TDAX#downloads&lt;/a&gt;&lt;/p&gt;
 &lt;p&gt;查找 /packages/ti/nsp/drv/gmacsw/cpts.c&lt;/p&gt;
 &lt;p&gt;最好的，&lt;/p&gt;
 &lt;p&gt;约书亚&lt;/p&gt;
 &lt;div style="clear:both;"&gt;&lt;/div&gt;
&lt;/div&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: AM5728: AM5728实现IEEE1588协议的一些疑问</title><link>https://e2echina.ti.com/thread/3943232?ContentTypeID=1</link><pubDate>Thu, 24 Sep 2026 01:00:48 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:3df436b8-2637-4a59-b52f-bd470863a102</guid><dc:creator>chen geng</dc:creator><slash:comments>0</slash:comments><comments>https://e2echina.ti.com/thread/3943232?ContentTypeID=1</comments><wfw:commentRss>https://e2echina.ti.com/support/processors/f/processors-forum/1094071/am5728-am5728-ieee1588/rss?ContentTypeId=0</wfw:commentRss><description>&lt;p&gt;是的，手动令TS_PUSH=1，也不能触发时间戳事件。如果这是因为没有启用CPTS导致的话，那么除了当前已有的初始化代码和令CPTSRegs.CONTROL.bit.CPTS_EN&amp;nbsp; &amp;nbsp;= 1，还需要有其它什么必要的步骤才能真正的启用CPTS？，从TRM上，暂时没有看到有其它寄存器也在控制CPTS的使能或者禁止状态。对于CPTS RCLK，我的代码如下：&lt;/p&gt;
&lt;p&gt;&lt;img style="max-height:240px;max-width:320px;" src="https://e2echina.ti.com/resized-image/__size/640x480/__key/communityserver-discussions-components-files/120/pastedimage1790210933601v1.png" alt=" " /&gt;&lt;/p&gt;
&lt;p&gt;目前唯一能让代码进入PTP时间戳事件中断的，就只有如下测试代码：&lt;/p&gt;
&lt;p&gt;CPTSRegs.CONTROL.bit.INT_TEST = 1;//开启中断测试&lt;br /&gt; CPTSRegs.INT_STAT_RAW.bit.TS = 1;//手动强制进入中断&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: DRA821U-Q1: DRA821U-Q1 的PCIE，能否从serdes lane2开始绑定</title><link>https://e2echina.ti.com/thread/3943221?ContentTypeID=1</link><pubDate>Wed, 23 Sep 2026 22:59:43 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:ed858280-2099-4039-bbf0-0e2b4f2351ae</guid><dc:creator>Eirwen</dc:creator><slash:comments>0</slash:comments><comments>https://e2echina.ti.com/thread/3943221?ContentTypeID=1</comments><wfw:commentRss>https://e2echina.ti.com/support/processors/f/processors-forum/1095579/dra821u-q1-dra821u-q1-pcie-serdes-lane2/rss?ContentTypeId=0</wfw:commentRss><description>&lt;p&gt;已经收到了您的案例，调查需要些时间，感谢您的耐心等待。&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: AM5728: AM5728实现IEEE1588协议的一些疑问</title><link>https://e2echina.ti.com/thread/3943219?ContentTypeID=1</link><pubDate>Wed, 23 Sep 2026 18:04:27 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:54375b57-8c7f-42f0-ae5e-c65e2b3aa086</guid><dc:creator>Misael Lopez Cruz</dc:creator><slash:comments>1</slash:comments><comments>https://e2echina.ti.com/thread/3943219?ContentTypeID=1</comments><wfw:commentRss>https://e2echina.ti.com/support/processors/f/processors-forum/1094071/am5728-am5728-ieee1588/rss?ContentTypeId=0</wfw:commentRss><description>&lt;div lang="zh-x-mtfrom-en"&gt;
 &lt;p&gt;CPTS 时间戳事件存储在硬件 FIFO 中，需要从中取出。时间戳事件有多种类型（发送和接收数据包、软件推送、硬件推送），但它们都存储在同一个 FIFO 中。在发送和接收数据包中，当数据包的 EtherType 与您设置的 LTYPE1 值（RX 或 TX）匹配时，硬件将生成一个时间戳事件。&lt;/p&gt;
 &lt;p&gt;你说它不起作用，是指 FIFO 中没有任何事件吗？&lt;/p&gt;
 &lt;p&gt;CPTS 支持软件推送事件（通过 TS_PUSH 寄存器），当 TS_PUSH 位写入 1 时，CPTS 将生成一个时间戳事件并将其存储到 CPTS FIFO 中。如果仍然无效，则可能是您未启用 CPTS。&lt;/p&gt;
 &lt;p&gt;CPTS RCLK 可以来自不同的信号源，通常会有一个多路复用器来选择具体信号源。根据 AM572x 技术参考手册：&lt;/p&gt;
 &lt;p&gt;&amp;gt; CM_GMAC_GMAC_CLKCTRL[ 27:25 ] CLKSEL_RFT - 选择 CPTS_RFT_CLK 的源&lt;/p&gt;
 &lt;p&gt;关于您原帖中提到的定时器问题，它们并非 CPTS 时间戳的来源。CPTS 可以捕获通过硬件推送输入传递给它的硬件事件的时间戳。一般来说，它可以是任何硬件事件（在较新的 TI 处理器中就是如此），但在 AM572x 中，它仅限于定时器的 PWM 输出事件。总之，我认为目前硬件推送事件并不重要。&lt;/p&gt;
 &lt;p&gt;希望这能帮到你。&lt;/p&gt;
 &lt;div style="clear:both;"&gt;&lt;/div&gt;
&lt;/div&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>AM2754-Q1: AM275x AASRC GROUP Mode Output Channel Phase Rotation — Issue Report</title><link>https://e2echina.ti.com/thread/1093846?ContentTypeID=0</link><pubDate>Thu, 10 Sep 2026 07:30:09 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:469ad954-6095-4940-b05c-3655af9c70c7</guid><dc:creator>Mingyang Hu</dc:creator><slash:comments>3</slash:comments><comments>https://e2echina.ti.com/thread/1093846?ContentTypeID=0</comments><wfw:commentRss>https://e2echina.ti.com/support/processors/f/processors-forum/1093846/am2754-q1-am275x-aasrc-group-mode-output-channel-phase-rotation-issue-report/rss?ContentTypeId=0</wfw:commentRss><description>&lt;p&gt;&lt;b&gt;Part Number:&lt;/b&gt; AM2754-Q1&lt;/p&gt;&lt;p data-line="4"&gt;&lt;strong&gt;Chip / core:&lt;/strong&gt;&amp;nbsp;AM275x, issue observed and instrumented on the C7x DSP core (C75SS0_0), FreeRTOS.&lt;/p&gt;
&lt;p data-line="7"&gt;&lt;strong&gt;SDK:&lt;/strong&gt;&amp;nbsp;freertos_sdk_am275x_12_01_00_28&lt;/p&gt;
&lt;p data-line="9"&gt;Hi,&lt;/p&gt;
&lt;p data-line="11"&gt;We are seeing the channel interleave phase of an AASRC GROUP output drift over time, and would like to know whether this is expected behaviour or a configuration mistake on our side.&lt;/p&gt;
&lt;p data-line="15"&gt;AASRC is configured as a&amp;nbsp;&lt;strong&gt;single GROUP channel with 12 channels&lt;/strong&gt;. The input clock zone is slaved to an external A2B frame sync (&lt;code&gt;McASP2_AFSR&lt;/code&gt;); the output clock zone is derived from a local 24.576 MHz reference clock. The two domains are therefore asynchronous, and we measured them to be&amp;nbsp;&lt;strong&gt;7.2 ppm&lt;/strong&gt;&amp;nbsp;apart &amp;mdash; absorbing that offset is exactly why we use AASRC here.&lt;/p&gt;
&lt;p data-line="21"&gt;To isolate the problem we inject a mono test tone on A2B media channel 0 and keep the other 11 channels digitally silent, then log which interleave lane carries the signal on each side of AASRC. At the AASRC&amp;nbsp;&lt;strong&gt;input&lt;/strong&gt;&amp;nbsp;buffer the tone stays on lane 0 for the entire run. At the AASRC&amp;nbsp;&lt;strong&gt;output&lt;/strong&gt;&amp;nbsp;buffer it migrates:&amp;nbsp;&lt;code&gt;0 -&amp;gt; 11 -&amp;gt; 10 -&amp;gt; 9 -&amp;gt; ... -&amp;gt; 1 -&amp;gt; 0&lt;/code&gt;, wrapping through all 12 lanes.&lt;/p&gt;
&lt;p data-line="27"&gt;The direction is always the same (towards lower lane index, consistent with the output domain being the faster one), but&amp;nbsp;&lt;strong&gt;the step size is not constant&lt;/strong&gt;&amp;nbsp;&amp;mdash; most events move the phase by 1 lane, while some events move it by more than one lane at once. Over a 27.7 minute run the phase wrapped through all 12 lanes, at&amp;nbsp;&lt;strong&gt;irregular&lt;/strong&gt;&amp;nbsp;intervals ranging from 50 s to 355 s.&lt;/p&gt;
&lt;p data-line="33"&gt;What makes this hard to handle is that nothing in the driver reports it. During that same run the AASRC error callback fired&amp;nbsp;&lt;strong&gt;0&lt;/strong&gt;&amp;nbsp;times, the application dropped&amp;nbsp;&lt;strong&gt;0&lt;/strong&gt;&amp;nbsp;input blocks, the 4-deep transaction ring never starved (3-4 transactions in flight throughout), and we verified by instrumentation that our transaction-to-buffer mapping never diverged (0 mismatches). The audio itself is clean &amp;mdash; no glitches, no dropouts &amp;mdash; only the channel positions shift.&lt;/p&gt;
&lt;p data-line="40"&gt;Our questions:&lt;/p&gt;
&lt;ol&gt;
&lt;li data-line="42"&gt;
&lt;p data-line="42"&gt;In GROUP mode with asynchronous input/output clock zones, is the 12-channel interleave phase of the output DMA stream guaranteed to remain stable indefinitely? If not, is this a known limitation of GROUP mode?&lt;/p&gt;
&lt;/li&gt;
&lt;li data-line="46"&gt;
&lt;p data-line="46"&gt;A 12-channel GROUP maps onto 6 stereo SRC pairs sharing one DMA stream. Are the rate-compensation decisions of those 6 pairs shared, or does each pair decide independently? If independent, a divergence of N samples between pairs would rotate the interleave by N positions, which would match both the single-lane and the multi-lane steps we observe. Is that the mechanism?&lt;/p&gt;
&lt;/li&gt;
&lt;li data-line="52"&gt;
&lt;p data-line="52"&gt;Is there a register or API to read the current output FIFO level per stereo pair, or the interleave phase of the GROUP? We need a way to detect and re-align the phase that does not depend on audio content &amp;mdash; our current probe only works because we can inject a single-channel test tone.&lt;/p&gt;
&lt;/li&gt;
&lt;li data-line="57"&gt;
&lt;p data-line="57"&gt;For this use case (resampling 12 A2B media channels from an external clock-slave domain into the local domain), is a single GROUP(12) the recommended configuration, or should we use 6 independent STEREO channels with separate DMA streams so that the pairs cannot drift relative to each other?&lt;/p&gt;
&lt;/li&gt;
&lt;/ol&gt;
&lt;p data-line="63"&gt;Full configuration, reproduction steps, detection method and raw logs are in the sections below.&lt;/p&gt;
&lt;p data-line="66"&gt;Thanks,&amp;nbsp;&lt;/p&gt;
&lt;p data-line="66"&gt;Hu&lt;/p&gt;
&lt;p data-line="66"&gt;&lt;a href="https://e2echina.ti.com/cfs-file/__key/communityserver-discussions-components-files/120/AASRC_5F00_Channel_5F00_Phase_5F00_Rotation_5F00_Report.txt" target="_blank" rel="noopener" data-temp-id="AASRC_Channel_Phase_Rotation_Report.txt-29605"&gt;AASRC_Channel_Phase_Rotation_Report.txt&lt;/a&gt;&amp;nbsp;&lt;/p&gt;</description></item><item><title>RE: AM2754-Q1: AM275x AASRC GROUP Mode Output Channel Phase Rotation — Issue Report</title><link>https://e2echina.ti.com/thread/3943217?ContentTypeID=1</link><pubDate>Wed, 23 Sep 2026 14:44:01 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:b9a3bb79-0492-4b84-8f7c-653b0f9e9abf</guid><dc:creator>Ritapravo Sarker</dc:creator><slash:comments>0</slash:comments><comments>https://e2echina.ti.com/thread/3943217?ContentTypeID=1</comments><wfw:commentRss>https://e2echina.ti.com/support/processors/f/processors-forum/1093846/am2754-q1-am275x-aasrc-group-mode-output-channel-phase-rotation-issue-report/rss?ContentTypeId=0</wfw:commentRss><description>&lt;div lang="zh-x-mtfrom-en"&gt;
 &lt;p&gt;胡，你好&lt;/p&gt;
 &lt;p&gt;能否在本帖中分享一下你的链接器文件？
  &lt;br /&gt;
  还有，你声明 mcasp/aasrc 缓冲区的代码片段。&lt;/p&gt;
 &lt;p&gt;问候，
  &lt;br /&gt;
  里塔普拉沃&lt;/p&gt;
 &lt;div style="clear:both;"&gt;&lt;/div&gt;
&lt;/div&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: AM5728: AM5728实现IEEE1588协议的一些疑问</title><link>https://e2echina.ti.com/thread/3943216?ContentTypeID=1</link><pubDate>Wed, 23 Sep 2026 14:13:50 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:b7b7cf42-9e3d-44ea-8505-54b8ef92a923</guid><dc:creator>Josue Zamitiz-Ayala</dc:creator><slash:comments>0</slash:comments><comments>https://e2echina.ti.com/thread/3943216?ContentTypeID=1</comments><wfw:commentRss>https://e2echina.ti.com/support/processors/f/processors-forum/1094071/am5728-am5728-ieee1588/rss?ContentTypeId=0</wfw:commentRss><description>&lt;div lang="zh-x-mtfrom-en"&gt;
 &lt;p&gt;内部正在核实情况。如果有任何有用的信息，我会及时更新。&lt;/p&gt;
 &lt;p&gt;-约书亚&lt;/p&gt;
 &lt;div style="clear:both;"&gt;&lt;/div&gt;
&lt;/div&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: AM5728: AM5728实现IEEE1588协议的一些疑问</title><link>https://e2echina.ti.com/thread/3943150?ContentTypeID=1</link><pubDate>Wed, 23 Sep 2026 00:49:49 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:825f43e4-c89a-4b83-97be-cd0c2b6060b6</guid><dc:creator>chen geng</dc:creator><slash:comments>0</slash:comments><comments>https://e2echina.ti.com/thread/3943150?ContentTypeID=1</comments><wfw:commentRss>https://e2echina.ti.com/support/processors/f/processors-forum/1094071/am5728-am5728-ieee1588/rss?ContentTypeId=0</wfw:commentRss><description>&lt;p&gt;&lt;img style="max-height:240px;max-width:320px;" src="https://e2echina.ti.com/resized-image/__size/640x480/__key/communityserver-discussions-components-files/120/pastedimage1790124451090v1.png" alt=" " /&gt;&lt;/p&gt;
&lt;p&gt;你建议的配置方法，实际上我在发这个帖子之前就都尝试过了的，都没有任何作用，看了你的截图，我又按截图里的参数配置，也没有效果&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: AM5728: AM5728实现IEEE1588协议的一些疑问</title><link>https://e2echina.ti.com/thread/3943139?ContentTypeID=1</link><pubDate>Tue, 22 Sep 2026 15:15:22 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:7d22a653-47b7-4612-9239-f8a5a9784e1c</guid><dc:creator>Josue Zamitiz-Ayala</dc:creator><slash:comments>1</slash:comments><comments>https://e2echina.ti.com/thread/3943139?ContentTypeID=1</comments><wfw:commentRss>https://e2echina.ti.com/support/processors/f/processors-forum/1094071/am5728-am5728-ieee1588/rss?ContentTypeId=0</wfw:commentRss><description>&lt;div lang="zh-x-mtfrom-en"&gt;
 &lt;p&gt;很高兴能帮到你。&lt;/p&gt;
 &lt;p&gt;我的建议没有起到帮助吗？&lt;/p&gt;
 &lt;p&gt;请解释一下以下问题：&lt;/p&gt;
 [quote userid="675191" url="~/support/processors-group/processors---internal/f/processors---internal-forum/1681382/am5728-some-questions-about-am5728-implementing-the-ieee-1588-protocol/6490578"] 但我目前遇到了 CPTS 模块无法识别 PTP 数据包的问题[/quote]
 &lt;p&gt;我可以再向我们现有的团队确认一下，看看有没有人能帮忙。&lt;/p&gt;
 &lt;p&gt;祝你好运！&lt;/p&gt;
 &lt;p&gt;-约书亚&lt;/p&gt;
 &lt;div style="clear:both;"&gt;&lt;/div&gt;
&lt;/div&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: AM3352: 升级uboot 从sdk 的2017 到2026，启动同一个fitimage 新的uboot 2026 出现Starting kernel ... 问题</title><link>https://e2echina.ti.com/thread/3943131?ContentTypeID=1</link><pubDate>Tue, 22 Sep 2026 10:14:08 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:d7875599-fd41-4a9e-8af2-0c3f45aaea09</guid><dc:creator>Vinuchandran A V</dc:creator><slash:comments>0</slash:comments><comments>https://e2echina.ti.com/thread/3943131?ContentTypeID=1</comments><wfw:commentRss>https://e2echina.ti.com/support/processors/f/processors-forum/1093455/am3352-uboot-sdk-2017-2026-fitimage-uboot-2026-starting-kernel/rss?ContentTypeId=0</wfw:commentRss><description>&lt;div lang="zh-x-mtfrom-en"&gt;
 &lt;p&gt;你好，&lt;/p&gt;
 &lt;p&gt;还有一个测试可以帮助我们缩小问题范围。您能否尝试从标准的 meta-ti / TI 参考构建设置（而不是通过您的 OpenBMC 层）构建并启动内核，然后在您的开发板上使用 U-Boot 2025.01 进行测试？&lt;/p&gt;
 &lt;p&gt;我们之所以这样问，是因为将您的内核版本字符串与已知可用的参考版本进行比较后，我们发现除了内核版本之外，还有一些其他差异：&lt;/p&gt;
 &lt;p&gt;1. 内核版本标签：您的内核版本显示为“6.1.46-ti-gbbfe7dc461b4”；参考内核版本显示为“6.1.46-g1d4b5da681”（没有“-ti-”标签），这表明它可能来自不同的配方/层路径。
  &lt;br /&gt;
  2. 工具链：您的版本使用 arm-openbmc-linux-gnueabi-gcc (GCC) 15.2.0 构建；参考版本使用 arm-oe-linux-gnueabi-gcc (GCC) 11.4.0 构建——这是一个明显较旧但经过更广泛验证的编译器，适用于此内核版本。&lt;/p&gt;
 &lt;p&gt;问候，
  &lt;br /&gt;
  维努&lt;/p&gt;
 &lt;div style="clear:both;"&gt;&lt;/div&gt;
&lt;/div&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>AM3352: 升级uboot 从sdk 的2017 到2026，启动同一个fitimage 新的uboot 2026 出现Starting kernel ... 问题</title><link>https://e2echina.ti.com/thread/1093455?ContentTypeID=0</link><pubDate>Tue, 08 Sep 2026 09:25:50 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:dcfa6d08-9247-4a82-8421-3b9679b0364c</guid><dc:creator>shaohua xiong</dc:creator><slash:comments>32</slash:comments><comments>https://e2echina.ti.com/thread/1093455?ContentTypeID=0</comments><wfw:commentRss>https://e2echina.ti.com/support/processors/f/processors-forum/1093455/am3352-uboot-sdk-2017-2026-fitimage-uboot-2026-starting-kernel/rss?ContentTypeId=0</wfw:commentRss><description>&lt;p&gt;&lt;b&gt;Part Number:&lt;/b&gt; AM3352&lt;/p&gt;&lt;p&gt;我现在是将板子的uboot 从sdk 的2017 版本，升级到2026 版本，原本旧的uboot 是可以正常启动fitimage 的，且bootargs 配置为 &amp;#39;earlycon=ns16550a,mmio32,0x44e09000 console=ttyO0,115200n8 loglevel=8 root=/dev/ram0 rw&amp;#39;， 可以正常看到kernel 启动log, 并正常启动，现在换成uboot 2026 版本后，bootargs 没变，还是 &amp;#39;earlycon=ns16550a,mmio32,0x44e09000 console=ttyO0,115200n8 loglevel=8 root=/dev/ram0 rw&amp;#39;，&amp;nbsp;&lt;/p&gt;
&lt;p&gt;=&amp;gt; bootm 0x88000000&lt;br /&gt;## Loading kernel (any) from FIT Image at 88000000 ...&lt;br /&gt;&amp;nbsp; &amp;nbsp;Using &amp;#39;conf-1&amp;#39; configuration&lt;br /&gt;&amp;nbsp; &amp;nbsp;Verifying Hash Integrity ... OK&lt;br /&gt;&amp;nbsp; &amp;nbsp;Trying &amp;#39;kernel-1&amp;#39; kernel subimage&lt;br /&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp;Description: &amp;nbsp;Linux Kernel&lt;br /&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp;Created: &amp;nbsp; &amp;nbsp; &amp;nbsp;2011-04-05 &amp;nbsp;23:00:00 UTC&lt;br /&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp;Type: &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; Kernel Image&lt;br /&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp;Compression: &amp;nbsp;uncompressed&lt;br /&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp;Data Start: &amp;nbsp; 0x880113f0&lt;br /&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp;Data Size: &amp;nbsp; &amp;nbsp;5902848 Bytes = 5.6 MiB&lt;br /&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp;Architecture: ARM&lt;br /&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp;OS: &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; Linux&lt;br /&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp;Load Address: 0x80300000&lt;br /&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp;Entry Point: &amp;nbsp;0x80300000&lt;br /&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp;Hash algo: &amp;nbsp; &amp;nbsp;sha256&lt;br /&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp;Hash value: &amp;nbsp; dbc1b7373ca439fe70850915362be5991d21580c810c08f430ae67eaa0a65bea&lt;br /&gt;&amp;nbsp; &amp;nbsp;Verifying Hash Integrity ... sha256+ OK&lt;br /&gt;## Loading ramdisk (any) from FIT Image at 88000000 ...&lt;br /&gt;&amp;nbsp; &amp;nbsp;Using &amp;#39;conf-1&amp;#39; configuration&lt;br /&gt;&amp;nbsp; &amp;nbsp;Verifying Hash Integrity ... OK&lt;br /&gt;&amp;nbsp; &amp;nbsp;Trying &amp;#39;ramdisk-1&amp;#39; ramdisk subimage&lt;br /&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp;Description: &amp;nbsp;Ramdisk Image&lt;br /&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp;Created: &amp;nbsp; &amp;nbsp; &amp;nbsp;2011-04-05 &amp;nbsp;23:00:00 UTC&lt;br /&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp;Type: &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; RAMDisk Image&lt;br /&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp;Compression: &amp;nbsp;uncompressed&lt;br /&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp;Data Start: &amp;nbsp; 0x885b26e8&lt;br /&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp;Data Size: &amp;nbsp; &amp;nbsp;2108265 Bytes = 2 MiB&lt;br /&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp;Architecture: ARM&lt;br /&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp;OS: &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; Linux&lt;br /&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp;Load Address: 0x83000000&lt;br /&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp;Entry Point: &amp;nbsp;0x83000000&lt;br /&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp;Hash algo: &amp;nbsp; &amp;nbsp;sha256&lt;br /&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp;Hash value: &amp;nbsp; f2adcb28abc8db029d08a70b44922d17181ef12d965b85a1aaa959d4058625e6&lt;br /&gt;&amp;nbsp; &amp;nbsp;Verifying Hash Integrity ... sha256+ OK&lt;br /&gt;&amp;nbsp; &amp;nbsp;Loading ramdisk from 0x885b26e8 to 0x83000000&lt;br /&gt;## Loading fdt (any) from FIT Image at 88000000 ...&lt;br /&gt;&amp;nbsp; &amp;nbsp;Using &amp;#39;conf-1&amp;#39; configuration&lt;br /&gt;&amp;nbsp; &amp;nbsp;Verifying Hash Integrity ... OK&lt;br /&gt;&amp;nbsp; &amp;nbsp;Trying &amp;#39;fdt-1&amp;#39; fdt subimage&lt;br /&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp;Description: &amp;nbsp;Flattened Device Tree blob&lt;br /&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp;Created: &amp;nbsp; &amp;nbsp; &amp;nbsp;2011-04-05 &amp;nbsp;23:00:00 UTC&lt;br /&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp;Type: &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; Flat Device Tree&lt;br /&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp;Compression: &amp;nbsp;uncompressed&lt;br /&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp;Data Start: &amp;nbsp; 0x880000d0&lt;br /&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp;Data Size: &amp;nbsp; &amp;nbsp;70204 Bytes = 68.6 KiB&lt;br /&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp;Architecture: ARM&lt;br /&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp;Load Address: 0x80200000&lt;br /&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp;Hash algo: &amp;nbsp; &amp;nbsp;sha256&lt;br /&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp;Hash value: &amp;nbsp; 922e664890d89e3e29510ceebcf806157170f2ac0492084f377b4ae4c9d527ac&lt;br /&gt;&amp;nbsp; &amp;nbsp;Verifying Hash Integrity ... sha256+ OK&lt;br /&gt;&amp;nbsp; &amp;nbsp;Loading fdt from 0x880000d0 to 0x80200000&lt;br /&gt;&amp;nbsp; &amp;nbsp;Booting using the fdt blob at 0x80200000&lt;br /&gt;Working FDT set to 80200000&lt;br /&gt;&amp;nbsp; &amp;nbsp;Loading Kernel Image to 80300000&lt;br /&gt;&amp;nbsp; &amp;nbsp;Using Device Tree in place at 80200000, end 8021423b&lt;br /&gt;Working FDT set to 80200000&lt;/p&gt;
&lt;p&gt;Starting kernel ...&lt;/p&gt;
&lt;p&gt;CCCCCCCC&lt;br /&gt;&lt;br /&gt;上面出现Starting kernel ... 后大概等了30s 后出现CCCC, 板子重启，由于kernel 在旧的uboot 可以正常启动，且bootargs 起了作用，我现在怀疑是新的uboot 导致， 为什么新的uboot 下bootargs 没起作用，内核也没看到输出，不知道什么原因，大家有遇到过吗，能帮忙一下！&lt;/p&gt;</description></item><item><title>RE: AM5728: AM5728实现IEEE1588协议的一些疑问</title><link>https://e2echina.ti.com/thread/3943122?ContentTypeID=1</link><pubDate>Tue, 22 Sep 2026 06:08:26 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:aa9b34ee-4cc8-444e-a092-144bafeaaeba</guid><dc:creator>chen geng</dc:creator><slash:comments>0</slash:comments><comments>https://e2echina.ti.com/thread/3943122?ContentTypeID=1</comments><wfw:commentRss>https://e2echina.ti.com/support/processors/f/processors-forum/1094071/am5728-am5728-ieee1588/rss?ContentTypeId=0</wfw:commentRss><description>&lt;p&gt;非常感谢你的帮助。确实我使用AM5728和AM5729的开发方式有点另类，没有使用liunx，也没有使用TI的RTOS，我用的是CCS环境下的纯裸机开发方式，目的是想打造一个以AM5728或者AM5729为核心的算法验证平台，所有代码、片内外设的寄存器全部手动可控。IEEE1588，我是打算用在工业自动化方向上，现在就遇到了这个CPTS模块没有识别到PTP数据包的问题。如果后面证明AM5728在EMAC上的PTP协议支持有问题的话，可能就只有考虑使用完整支持IEEE1588的PHY了，看了下，TI也有几款比较适合。&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: AM3352: 升级uboot 从sdk 的2017 到2026，启动同一个fitimage 新的uboot 2026 出现Starting kernel ... 问题</title><link>https://e2echina.ti.com/thread/3943121?ContentTypeID=1</link><pubDate>Tue, 22 Sep 2026 05:55:47 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:8d5dd953-d75d-4c53-83d0-9ae497b9c15d</guid><dc:creator>shaohua xiong</dc:creator><slash:comments>0</slash:comments><comments>https://e2echina.ti.com/thread/3943121?ContentTypeID=1</comments><wfw:commentRss>https://e2echina.ti.com/support/processors/f/processors-forum/1093455/am3352-uboot-sdk-2017-2026-fitimage-uboot-2026-starting-kernel/rss?ContentTypeId=0</wfw:commentRss><description>&lt;p&gt;目前测试看来，错误是随机的，是ddr 问题吗，但是我在uboot 下mtest 是ok 的&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: AM3352: 升级uboot 从sdk 的2017 到2026，启动同一个fitimage 新的uboot 2026 出现Starting kernel ... 问题</title><link>https://e2echina.ti.com/thread/3943120?ContentTypeID=1</link><pubDate>Tue, 22 Sep 2026 05:52:30 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:7b80424f-03c9-4d9e-bb4c-963108c2b547</guid><dc:creator>shaohua xiong</dc:creator><slash:comments>1</slash:comments><comments>https://e2echina.ti.com/thread/3943120?ContentTypeID=1</comments><wfw:commentRss>https://e2echina.ti.com/support/processors/f/processors-forum/1093455/am3352-uboot-sdk-2017-2026-fitimage-uboot-2026-starting-kernel/rss?ContentTypeId=0</wfw:commentRss><description>&lt;p&gt;另外我今天上午kernel 成功启动了一次，但是重启，又不行了&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: AM3352: 升级uboot 从sdk 的2017 到2026，启动同一个fitimage 新的uboot 2026 出现Starting kernel ... 问题</title><link>https://e2echina.ti.com/thread/3943119?ContentTypeID=1</link><pubDate>Tue, 22 Sep 2026 05:51:35 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:5cb050d2-213d-4344-86a6-d7228ac5065d</guid><dc:creator>shaohua xiong</dc:creator><slash:comments>1</slash:comments><comments>https://e2echina.ti.com/thread/3943119?ContentTypeID=1</comments><wfw:commentRss>https://e2echina.ti.com/support/processors/f/processors-forum/1093455/am3352-uboot-sdk-2017-2026-fitimage-uboot-2026-starting-kernel/rss?ContentTypeId=0</wfw:commentRss><description>&lt;p&gt;我上面就是使用的TI-kernel &lt;span&gt;6.1.46 版本&lt;/span&gt;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>