https://e2echina.ti.com/support/microcontrollers/c2000/f/c2000-microcontrollers-forum/1094397/f29h859tu-q1-f29-can-busoff/3942393Fri, 18 Sep 2026 14:14:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:bee535c5-008f-4782-97bc-fd8923298e3cPrajakta Potadar问题1：你的观察和修正都正确。我们应该检查这两项。 canBusOffRecoveryStatus and MCAN_PSR_BO before triggering the notification in order to ensure only one bus off notification is triggered for every bus off event. 问题 2：我们正在努力重现该问题，分析完成后会通知您。ECTEhttps://e2echina.ti.com/support/wireless-connectivity/zigbee-and-thread/f/zigbee-thread-forum/1095284/cc2340r5-zb_zdo_simple_desc_req-zb_zdo_active_ep_req/3942392Fri, 18 Sep 2026 13:53:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:a01acd89-e239-42ab-9d2d-27e181140cd0Aries LordSDK simplelink_lowpower_f3_sdk_9_21_00_36_LTShttps://e2echina.ti.com/support/wireless-connectivity/zigbee-and-thread/f/zigbee-thread-forum/1095284/cc2340r5-zb_zdo_simple_desc_req-zb_zdo_active_ep_reqFri, 18 Sep 2026 13:52:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:c0b79bea-c4d5-45f2-ae9e-ad5bfa02e926Aries LordPart Number: CC2340R5 zb_zdo_simple_desc_req和zb_zdo_active_ep_req向不存在的地址发送请求，10秒钟后收到超时，56秒后才收到zb_af_set_zdo_data_conf_cb回调，报告未收到APS ACK。CC2340R5https://e2echina.ti.com/support/processors/f/processors-forum/1093455/am3352-uboot-sdk-2017-2026-fitimage-uboot-2026-starting-kernel/3942391Fri, 18 Sep 2026 12:04:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:9f8419bc-133a-4469-a3ce-ecc5dc7f9297Vinuchandran A V你好， 您能否尝试将此参数添加到 2025 Uboot 启动参数中并捕获日志？ slub_debug=FZP 如果仍然无效，请使用以下命令重新编译内核： CONFIG_INIT_ON_ALLOC_DEFAULT_ON=y 请分享日志文件。 问候， 维努ECTEhttps://e2echina.ti.com/support/power-management/f/power-management-forum/1095280/tps2121Fri, 18 Sep 2026 11:13:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:fb9476f0-c6ba-4984-9d45-c433b5a6f9b0? ??Part Number: TPS2121 如下图，切换电源输入时，输出电压出现跌落，导致系统重启，需要修改什么参数吗？TPS2121便携式电子产品https://e2echina.ti.com/support/power-management/f/power-management-forum/1095278/tms320f280039c-demo/3942389Fri, 18 Sep 2026 09:04:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:451f09b2-245b-45e7-8aa7-93dd6dd1a4c1Daniel您好 已经收到了您的案例，调查需要些时间，感谢您的耐心等待https://e2echina.ti.com/support/power-management/f/power-management-forum/1095278/tms320f280039c-demoFri, 18 Sep 2026 08:25:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:6cc77c7b-bf31-461d-9134-be0aa2eba19f陈 经国Part Number: TMS320F280039CTMS320F280039Chttps://e2echina.ti.com/support/microcontrollers/c2000/f/c2000-microcontrollers-forum/1095273/tms320f28035-tms320f28035pnt-adc/3942388Fri, 18 Sep 2026 08:12:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:f038139a-66a4-49de-96ed-09ea495dbc64Alice您好， 已经收到了您的案例，调查需要些时间，感谢您的耐心等待。https://e2echina.ti.com/support/interface/f/interface-forum/1095275/tcan1043a-q1-tcan1043a-timing/3942387Fri, 18 Sep 2026 07:59:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:edca51cf-d600-4252-8595-5deb261a8c39Vivian Gao感谢您关注TI产品。我们正在核实您的问题，请耐心等待我们的回复。https://e2echina.ti.com/support/sensors/f/sensors-forum/1095274/awr2243boost-2243boost/3942386Fri, 18 Sep 2026 07:55:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:067ffeae-b88a-486b-a4d7-1eb153750fe0Vivian Gao详细说明您想做什么https://e2echina.ti.com/support/interface/f/interface-forum/1095275/tcan1043a-q1-tcan1043a-timingFri, 18 Sep 2026 07:44:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:dc5c3773-babb-48d2-a3c7-de7e87c670d4cao lelianPart Number: TCAN1043A-Q1 Hi team, 我们在测试TCAN1043ADMTRQ1R transceiver timing时（原理图如下图1），发现tpHR（传播延迟时间，TXD 高电平到驱动器隐性）为80ns以上，接近datasheet最大值90ns，如下图2。tF （差分输出信号下降时间 ）为70ns，超过datasheet典型值50ns ，如下图3。请问这tpHR主要与什么设计相关呢？下降时间tF有没有最大值要求呢？ 测试setup为，板端CAN transceiver通过CAN总线连接到另一CAN节点（带120欧姆终端电阻）。 板端CAN H和CAN L之间有120欧姆，另一个CAN节点的CAN H和CAN L之间有120欧姆，并联60欧姆，RL=60ohm。 谢谢。 图1： 图2： 图3：高级驾驶辅助系统 (ADAS)TCAN1043A-Q1https://e2echina.ti.com/support/sensors/f/sensors-forum/1095274/awr2243boost-2243boostFri, 18 Sep 2026 07:23:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:7f4dca7d-1347-4d5c-a4d1-f3a6515a5585zhuohao maPart Number: AWR2243BOOST 只买一个2243boost可以直接运行使用吗AWR2243BOOSThttps://e2echina.ti.com/support/data-converters/f/data-converters-forum/1095269/ads4149-ads4149-vcm-0-95v/3942385Fri, 18 Sep 2026 07:07:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:cc41906b-ea2c-49ed-a426-f9089bca812dDaniel您好 这个值是在上述条件下测得的，并给出如图参考，所以排除损坏的情况下，应该在0.95左右。https://e2echina.ti.com/support/microcontrollers/c2000/f/c2000-microcontrollers-forum/1095273/tms320f28035-tms320f28035pnt-adcFri, 18 Sep 2026 07:02:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:e6c4335f-a3d3-470e-b5b0-f8d643e34f63Dora CAIPart Number: TMS320F28035 你好， TMS320F28035PNT 使用片上ADC测试，发现ADC存在线性误差，不同芯片之间一致性差异较大 。相同问题在TMS320F28377SPZPT 上面也有出现。想看看怎么调整可以解决问题，谢谢！ TMS320F28035PNT 芯片 ADC非线性问题.pdfTMS320F28035https://e2echina.ti.com/support/data-converters/f/data-converters-forum/1095269/ads4149-ads4149-vcm-0-95vFri, 18 Sep 2026 06:46:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:b5218a3a-1642-44ee-892b-28b0a15b5241shi zhenguoPart Number: ADS4149 Each circuit board incorporates two ADS4149 chips. We have manufactured several such board prototypes: on some boards, one of the two ADS4149 chips has a VCM output voltage of 0.95 V, while the other chip's VCM output is 0 V; on other boards, the VCM output voltage for both chips is 0 V. I would like to know whether the VCM state of the ADS4149 chips is random upon power-up. I have attached the schematic diagram; could you help me determine the cause of this behavior? Thank you. Please send the reason to me via email : szgds@126.com . LR_ADC250_Amplifier V1.0(1).pdf测试和测量ADS4149https://e2echina.ti.com/support/processors/f/processors-forum/1093455/am3352-uboot-sdk-2017-2026-fitimage-uboot-2026-starting-kernel/3942384Fri, 18 Sep 2026 05:39:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:2a8987bc-22d9-4bc1-8427-b6a452baef93shaohua xiong=> tftp 0x80008000 zImage link up on port 0, speed 1000, full duplex Using cpsw device TFTP from server 192.168.0.10; our IP address is 192.168.0.1 Filename 'zImage'. Load address: 0x80008000 Loading: ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ############# 1.2 MiB/s done Bytes transferred = 5902848 (5a1200 hex) => tftp 0x8b000000 am335x-evm.dtb link up on port 0, speed 1000, full duplex Using cpsw device TFTP from server 192.168.0.10; our IP address is 192.168.0.1 Filename 'am335x-evm.dtb'. Load address: 0x8b000000 Loading: ##### 721.7 KiB/s done Bytes transferred = 69492 (10f74 hex) => printenv bootargs bootargs=earlycon=ns16550a,mmio32,0x44e09000 console=ttyO0,115200n8 loglevel=8 root=/dev/ram0 rw => bootz 0x80008000 - 0x8b000000 ## Flattened Device Tree blob at 8b000000 Booting using the fdt blob at 0x8b000000 Loading Device Tree to 8def3000, end 8df06f73 ... OK Starting kernel ... C:0x800090A0-0x805A9200->0x80EFC200-0x8149C360 Uncompressing Linux... done, booting the kernel. [ 0.000000] Booting Linux on physical CPU 0x0 [ 0.000000] Linux version 6.1.46-ti-gbbfe7dc461b4 (oe-user@oe-host) (arm-openbmc-linux-gnueabi-gcc (GCC) 15.2.0, GNU ld (GNU Binutils) 2.46) #1 PREEMPT Mon Aug 31 18:01:53 CST 2026 [ 0.000000] CPU: ARMv7 Processor [413fc082] revision 2 (ARMv7), cr=10c5387d [ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache [ 0.000000] OF: fdt: Machine model: TI AM335x EVM [ 0.000000] earlycon: ns16550a0 at MMIO32 0x44e09000 (options '') [ 0.000000] printk: bootconsole [ns16550a0] enabled [ 0.000000] Memory policy: Data cache writeback [ 0.000000] efi: UEFI not found. [ 0.000000] cma: Reserved 64 MiB at 0x89800000 [ 0.000000] Zone ranges: [ 0.000000] Normal [mem 0x0000000080000000-0x000000008fdfffff] [ 0.000000] HighMem empty [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000080000000-0x000000008fdfffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000080000000-0x000000008fdfffff] [ 0.000000] CPU: All CPU(s) started in SVC mode. [ 0.000000] AM335X ES2.1 (neon) [ 0.000000] pcpu-alloc: s0 r0 d32768 u32768 alloc=1*32768 [ 0.000000] pcpu-alloc: [0] 0 [ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 64516 [ 0.000000] Kernel command line: earlycon=ns16550a,mmio32,0x44e09000 console=ttyO0,115200n8 loglevel=8 root=/dev/ram0 rw [ 0.000000] Dentry cache hash table entries: 32768 (order: 5, 131072 bytes, linear) [ 0.000000] Inode-cache hash table entries: 16384 (order: 4, 65536 bytes, linear) [ 0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off [ 0.000000] Memory: 177248K/260096K available (9216K kernel code, 1005K rwdata, 2364K rodata, 1024K init, 282K bss, 17312K reserved, 65536K cma-reserved, 0K highmem) [ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1 [ 0.000000] trace event string verifier disabled [ 0.000000] rcu: Preemptible hierarchical RCU implementation. [ 0.000000] rcu: RCU event tracing is enabled. [ 0.000000] Trampoline variant of Tasks RCU enabled. [ 0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. [ 0.000000] NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16 [ 0.000000] IRQ: Found an INTC at 0x(ptrval) (revision 5.0) with 128 interrupts [ 0.000000] rcu: srcu_init: Setting srcu_struct sizes based on contention. [ 0.000000] TI gptimer clocksource: always-on /ocp/interconnect@44c00000/segment@200000/target-module@31000 [ 0.000003] sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 89478484971ns [ 0.008081] clocksource: dmtimer: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 79635851949 ns [ 0.018227] TI gptimer clockevent: 24000000 Hz at /ocp/interconnect@48000000/segment@0/target-module@40000 [ 0.030607] Console: colour dummy device 80x30 [ 0.035261] Calibrating delay loop... 597.60 BogoMIPS (lpj=2988032) [ 0.154717] CPU: Testing write buffer coherency: ok [ 0.159829] CPU0: Spectre v2: using BPIALL workaround [ 0.165034] pid_max: default: 32768 minimum: 301 [ 0.169937] LSM: Security Framework initializing [ 0.174886] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes, linear) [ 0.182458] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes, linear) [ 0.192907] cblist_init_generic: Setting adjustable number of callback queues. [ 0.200453] cblist_init_generic: Setting shift to 0 and lim to 1. [ 0.206947] Setting up static identity map for 0x80100000 - 0x80100060 [ 0.213932] rcu: Hierarchical SRCU implementation. [ 0.218912] rcu: Max phase no-delay instances is 1000. [ 0.226684] EFI services will not be available. [ 0.232166] devtmpfs: initialized [ 0.256444] VFP support v0.3: implementor 41 architecture 3 part 30 variant c rev 3 [ 0.264830] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.275018] futex hash table entries: 256 (order: -1, 3072 bytes, linear) [ 0.288549] pinctrl core: initialized pinctrl subsystem [ 0.295031] DMI not present or invalid. [ 0.300101] NET: Registered PF_NETLINK/PF_ROUTE protocol family [ 0.309349] DMA: preallocated 256 KiB pool for atomic coherent allocations [ 0.317982] thermal_sys: Registered thermal governor 'step_wise' [ 0.339798] No ATAGs? [ 0.348397] hw-breakpoint: debug architecture 0x4 unsupported. [ 0.357292] Serial: AMBA PL011 UART driver [ 0.394114] SCSI subsystem initialized [ 0.398888] pps_core: LinuxPPS API ver. 1 registered [ 0.404012] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 0.427328] PTP clock support registered [ 0.431672] EDAC MC: Ver: 3.0.0 [ 0.438330] clocksource: Switched to clocksource dmtimer [ 0.471178] NET: Registered PF_INET protocol family [ 0.488627] IP idents hash table entries: 4096 (order: 3, 32768 bytes, linear) [ 0.503888] tcp_listen_portaddr_hash hash table entries: 1024 (order: 0, 4096 bytes, linear) [ 0.512829] Table-perturb hash table entries: 65536 (order: 6, 262144 bytes, linear) [ 0.520854] TCP established hash table entries: 2048 (order: 1, 8192 bytes, linear) [ 0.528805] TCP bind hash table entries: 2048 (order: 2, 16384 bytes, linear) [ 0.536195] TCP: Hash tables configured (established 2048 bind 2048) [ 0.542899] UDP hash table entries: 256 (order: 0, 4096 bytes, linear) [ 0.549673] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes, linear) [ 0.557083] NET: Registered PF_UNIX/PF_LOCAL protocol family [ 0.564985] Initialise system trusted keyrings [ 0.570147] workingset: timestamp_bits=30 max_order=16 bucket_order=0 [ 0.584558] squashfs: version 4.0 (2009/01/31) Phillip Lougher [ 0.590726] jffs2: version 2.2. (NAND) ? 2001-2006 Red Hat, Inc. [ 0.598181] Key type asymmetric registered [ 0.602484] Asymmetric key parser 'x509' registered [ 0.607740] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 246) [ 0.615412] io scheduler mq-deadline registered [ 0.620102] io scheduler kyber registered [ 0.714721] Serial: 8250/16550 driver, 5 ports, IRQ sharing enabled [ 0.724604] STMicroelectronics ASC driver initialized [ 0.745718] brd: module loaded [ 0.757416] loop: module loaded [ 0.768645] CAN device driver interface [ 0.775412] i2c_dev: i2c /dev entries driver [ 0.782061] ledtrig-cpu: registered to indicate activity on CPUs [ 0.792378] NET: Registered PF_INET6 protocol family [ 0.799602] Segment Routing with IPv6 [ 0.803472] In-situ OAM (IOAM) with IPv6 [ 0.807645] sit: IPv6, IPv4 and MPLS over IPv4 tunneling driver [ 0.814921] NET: Registered PF_PACKET protocol family [ 0.820268] can: controller area network core [ 0.824832] NET: Registered PF_CAN protocol family [ 0.829815] can: raw protocol [ 0.832877] can: broadcast manager protocol [ 0.837192] can: netlink gateway - max_hops=1 [ 0.841896] 8021q: 802.1Q VLAN Support v1.8 [ 0.846489] Key type dns_resolver registered [ 0.851077] ThumbEE CPU extension supported. [ 0.855488] Registering SWP/SWPB emulation handler [ 0.860970] omap_voltage_late_init: Voltage driver support not added [ 0.868312] Loading compiled-in X.509 certificates [ 0.879087] Key type encrypted registered [ 0.883312] ima: No TPM chip found, activating TPM-bypass! [ 0.889324] ima: Allocated hash algorithm: sha1 [ 0.894052] ima: No architecture policies found [ 0.899122] evm: Initialising EVM extended attributes: [ 0.904425] evm: security.selinux (disabled) [ 0.908970] evm: security.SMACK64 (disabled) [ 0.913371] evm: security.SMACK64EXEC (disabled) [ 0.918121] evm: security.SMACK64TRANSMUTE (disabled) [ 0.923379] evm: security.SMACK64MMAP (disabled) [ 0.928133] evm: security.apparmor (disabled) [ 0.932650] evm: security.ima [ 0.935704] evm: security.capability [ 0.939432] evm: HMAC attrs: 0x1 [ 0.974794] pinctrl-single 44e10800.pinmux: 142 pins, size 568 [ 0.988655] gpio gpiochip0: (gpio-0-31): not an immutable chip, please consider fixing it! [ 0.997819] OMAP GPIO hardware version 0.1 [ 1.005629] printk: console [ttyO0] disabled [ 1.010337] 44e09000.serial: ttyO0 at MMIO 0x44e09000 (irq = 18, base_baud = 3000000) is a 8250 [ 1.019506] printk: console [ttyO0] enabled [ 1.019506] printk: console [ttyO0] enabled [ 1.028020] printk: bootconsole [ns16550a0] disabled [ 1.028020] printk: bootconsole [ns16550a0] disabled [ 1.042745] i2c i2c-0: of_i2c: modalias failure on /ocp/interconnect@44c00000/segment@200000/target-module@b000/i2c@0/tps@2d [ 1.054258] i2c i2c-0: Failed to create I2C device for /ocp/interconnect@44c00000/segment@200000/target-module@b000/i2c@0/tps@2d [ 1.066426] at24 0-0054: supply vcc not found, using dummy regulator [ 1.098623] at24 0-0054: 1024 byte 24c08 EEPROM, writable, 1 bytes/write [ 1.105532] omap_i2c 44e0b000.i2c: bus 0 rev0.11 at 400 kHz [ 1.117861] ti-sysc: probe of 44e31000.target-module failed with error -16 [ 1.129087] omap_wdt: OMAP Watchdog Timer Rev 0x01: initial timeout 15 sec [ 1.145263] 48022000.serial: ttyO1 at MMIO 0x48022000 (irq = 21, base_baud = 3000000) is a 8250 [ 1.163941] ti-sysc: probe of 48040000.target-module failed with error -16 [ 1.184675] gpio gpiochip1: (gpio-32-63): not an immutable chip, please consider fixing it! [ 1.207939] gpio gpiochip2: (gpio-64-95): not an immutable chip, please consider fixing it! [ 1.219557] gpio gpiochip3: (gpio-96-127): not an immutable chip, please consider fixing it! [ 1.232051] c_can_platform 481cc000.can: c_can_platform device registered (regs=(ptrval), irq=31) [ 1.244762] c_can_platform 481d0000.can: c_can_platform device registered (regs=(ptrval), irq=32) [ 1.263974] omap_rng 48310000.rng: Random Number Generator ver. 20 [ 1.270435] random: crng init done [ 1.338451] davinci_mdio 4a101000.mdio: davinci mdio revision 1.6, bus freq 1000000 [ 1.351025] davinci_mdio 4a101000.mdio: phy[1]: device 4a101000.mdio:01, driver Micrel KSZ9031 Gigabit PHY [ 1.360901] davinci_mdio 4a101000.mdio: phy[2]: device 4a101000.mdio:02, driver Micrel KSZ9031 Gigabit PHY [ 1.371220] cpsw-switch 4a100000.switch: initialized cpsw ale version 1.4 [ 1.378064] cpsw-switch 4a100000.switch: ALE Table size 1024 [ 1.384027] cpsw-switch 4a100000.switch: cpts: overflow check period 500 (jiffies) [ 1.391732] cpsw-switch 4a100000.switch: CPTS: ref_clk_freq:250000000 calc_mult:2147483648 calc_shift:29 error:0 nsec/sec [ 1.402835] cpsw-switch 4a100000.switch: Detected MACID = 04:23:22:68:0e:f8 [ 1.409975] cpsw-switch 4a100000.switch: Detected MACID = 04:23:22:68:0e:fa [ 1.419895] cpsw-switch 4a100000.switch: initialized (regs 0x4a100000, pool size 256) hw_ver:0019010C 1.12 (0) [ 1.440512] debugfs: Directory '49000000.dma' with parent 'dmaengine' already present! [ 1.448590] edma 49000000.dma: TI EDMA DMA engine driver [ 1.469154] omap-gpmc 50000000.gpmc: GPMC revision 6.0 [ 1.474375] gpmc_mem_init: disabling cs 0 mapped at 0x0-0x1000000 [ 1.502151] omap_reset_deassert: timedout waiting for gfx:0 [ 1.507877] ti-sysc: probe of 5600fe00.target-module failed with error -110 [ 1.518318] hw perfevents: enabled with armv7_cortex_a8 PMU driver, 5 counters available [ 1.531738] l3-aon-clkctrl:0000:0: failed to disable [ 1.544594] nand: device found, Manufacturer ID: 0xef, Chip ID: 0xda [ 1.551184] nand: Winbond W29N02KV [ 1.554614] nand: 256 MiB, SLC, erase size: 128 KiB, page size: 2048, OOB size: 128 [ 1.562502] nand: using OMAP_ECC_BCH8_CODE_HW ECC scheme [ 1.568072] 11 fixed-partitions partitions found on MTD device omap2-nand.0 [ 1.575123] Creating 11 MTD partitions on "omap2-nand.0": [ 1.580582] 0x000000000000-0x000000080000 : "SPL" [ 1.587736] 0x000000080000-0x000000180000 : "u-boot" [ 1.595088] 0x000000180000-0x000000280000 : "u-boot.backup" [ 1.602995] 0x000000280000-0x000000300000 : "u-boot-env" [ 1.610637] 0x000000300000-0x000001300000 : "fit" [ 1.622147] 0x000001300000-0x000002300000 : "fit.backup" [ 1.634257] 0x000002300000-0x000007300000 : "rootfs" [ 1.665206] 0x000007300000-0x00000c300000 : "rootfs.backup" [ 1.696867] 0x00000c300000-0x00000c700000 : "config" [ 1.705049] 0x00000c700000-0x00000cb00000 : "config.backup" [ 1.713874] 0x00000cb00000-0x000010000000 : "storage" [ 1.739150] input: volume-keys as /devices/platform/volume-keys/input/input0 这是uboot2017 启动的同一个zImage 和 dtb 的loghttps://e2echina.ti.com/support/processors/f/processors-forum/1093455/am3352-uboot-sdk-2017-2026-fitimage-uboot-2026-starting-kernel/3942383Fri, 18 Sep 2026 05:32:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:041c12e0-31dc-4e9f-9e42-790fa5ecde8dVinuchandran A V你好， 内核开始执行，然后遇到了 内核空指针解引用问题。 [quote userid="675191" url="~/support/processors-group/processors---internal/f/processors---internal-forum/1681003/am3352-upgrading-u-boot-from-sdk-2017-to-2026-booting-the-same-fitimage-the-new-u-boot-2026-displays-the-starting-kernel-error/6487773"][ 0.000000] 8 ] lr : [ ] psr: 60000093 [ 0.000000] sp : c0e01f28 ip : ffffffff fp : 00000000 [0.000000] r10: 00000000 r9: c101005c r8: c0efd7e4 [ 0.000000] r7 : c1010008 r6 : c1010010 r5 : c0efd6c8 r4 : c1010000 [ 0.000000] r3 : c0e08040 r2 : 00000000 r1 : 00000000 r0 : c1010010 [ 0.000000] 标志：nZCv IRQ 关闭 FIQ 开启 模式 SVC_32 ISA ARM 段 无 [ 0.000000] 控制：10c5387d 表：80004019 DAC：00000051 [ 0.000000] 寄存器 r0 信息：slab kmalloc-192 起始 c1010000 指针偏移 16 大小 192 [ 0.000000] 寄存器 r1 信息：空指针 [ 0.000000] 寄存器 r2 信息：空指针 [ 0.000000] 寄存器 r3 信息：非 slab/vmalloc 内存 [ 0.000000] 寄存器 r4 信息：slab kmalloc-192 起始 c1010000 指针偏移量 0 大小 192 [ 0.000000] 寄存器 r5 信息：非 slab/vmalloc 内存 [ 0.000000] 寄存器 r6 信息：slab kmalloc-192 起始 c1010000 指针偏移 16 大小 192 [ 0.000000] 寄存器 r7 信息：slab kmalloc-192 起始 c1010000 指针偏移量 8 大小 192 [ 0.000000] 寄存器 r8 信息：非 slab/vmalloc 内存 [ 0.000000] 寄存器 r9 信息：slab kmalloc-192 起始 c1010000 指针偏移 92 大小 192 [ 0.000000] 寄存器 r10 信息：空指针 [ 0.000000] 寄存器 r11 信息：空指针 [ 0.000000] 寄存器 r12 信息：非分页内存 [ 0.000000] 进程交换器（pid：0，堆栈限制 = 0x(ptrval)） [ 0.000000] 堆栈：（0xc0e01f28 至 0xc0e02000） [ 0.000000] 1f20: c014b700 ffffffff c1800000 cfb9f200 00000000 c0e1c9f8 [ 0.000000] 1f40: c0e01f6c 00000000 00000001 c0e04284 00000001 00000001 c0e01f80 c0efd7e4 [ 0.000000] 1f60: 00000002 c0d0ff60 00000000 00000001 00000cc0 ffffffff 00000000 ffffffec [ 0.000000] 1f80: 00000000 00000000 00000000 c0efc000 c0f292a4 c0e04240 00000000 ffffffff [ 0.000000] 1fa0: cfdffc00 c0d00f24 ffffffff ffffffff 00000000 c0d006e0 c0e08040 00000000 [ 0.000000] 1fc0: 00000000 c0d44a64 00000000 00000000 00000000 c0d00420 00000051 10c0387d [ 0.000000] 1fe0: 00000000 8cf02000 413fc082 10c5387d 00000000 00000000 00000000 00000000 [ 0.000000] 从 workqueue_init_early+0x174/0x290 分配工作队列 [ 0.000000] workqueue_init_early 来自 start_kernel+0x48c/0x6b4 [ 0.000000] 从 0x0 开始启动内核 [ 0.000000] 代码：错误的 PC 值 [ 0.000000] ---[ 跟踪结束 00000000000000000 ]---[/quote] 您能否尝试使用相同的内核，但使用旧版的 U-boot，然后捕获并分享启动日志？ （无需重新编译，请使用上述内核和 DTB 中的旧版 U-boot 二进制文件） 问候， 维努ECTEhttps://e2echina.ti.com/support/sensors/f/sensors-forum/1095005/fdc2214-fdc2214/3942382Fri, 18 Sep 2026 05:27:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:44f645b3-d0bd-4ca1-b4d9-34e589a350f8Daniel您好 感谢您的回复！ 之前给您提供诸多方向，如果您觉得尚未能测到相关缘由，就没有什么针对性资料供您参考。https://e2echina.ti.com/support/sensors/f/sensors-forum/1095005/fdc2214-fdc2214/3942381Fri, 18 Sep 2026 05:22:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:43c62e06-8316-4ed4-9fc6-c67590655c12Wang Jim明白，也就是说修改 IDRIVE值的大小确实可以改变IN2A振幅大小。然而现在我大幅度改变IDRIVE值的大小，测得IN2A对地振幅不变，请问有什么排查解决思路吗https://e2echina.ti.com/support/sensors/f/sensors-forum/1095005/fdc2214-fdc2214/3942380Fri, 18 Sep 2026 05:14:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:8734ae2e-f079-40b8-8ebd-dccd097df96aDaniel您好 根据datasheet这部分说明会有相关优化，但是这个优化是存在相对的增幅，而不是消弭振荡。