写入地址0时地址1会改变，写入地址1时0也会改变，写2的时候3会改变 使用的是16位模式，按照手册的电路地址偏移一位（个人理解偏移一位地址就相当于+2）
2024-04-26 11:20
在rk3568板子上运行屏幕共享app时，出现系统重启，目前出现系统重启有两种情况，1、板子正常网络环境下接收流时大概运行2个小时左右出现重启，出现重启的征兆大多数是在画面出现卡顿时；2、使用平板推流，将平板移动到弱网情况下，rk收流端很容易复现系统重启问题。 通过adb logcat 拉取应用日志时，重启前没有发现有什么异常报错信息，重启的时间节点是：11:35:26.378 AdbProcessImpl::out:04-12 11:35:17.260242372 E drm-vop-356x: invalid value iFirst=-1, iLast=0 04-12 11:35:17.28514821629 W HidlServiceManagement: Waited one second for android.hardware.radio@1.1::IRadio/slot1 AdbProcessImpl::out:04-12 11:35:17.285148148 I hwservicemanager: Since android.hardware.radio@1.1::IRadio/slot1 is not registered, trying to start it as a lazy HAL. 04-12 11:35:17.28714821629 I HidlServiceManagement: getService: Trying again for android.hardware.radio@1.1::IRadio/slot1... AdbProcessImpl::out:04-12 11:35:17.383339 15438 E omx_vdec: this frame is Error frame!,pOutput.timeUs = 0 AdbProcessImpl::out:04-12 11:35:17.537339 15438 I chatty: uid=1046(mediacodec) omx_dec_output identical 2 lines 04-12 11:35:17.626339 15438 E omx_vdec: this frame is Error frame!,pOutput.timeUs = 0 04-12 11:35:17.64522674439 E HdmiInput-navtive: getAudioRate(54): get audio sampling rate failed ,9(Bad file descriptor) 04-12 11:35:17.64522674439 I com.tc.paper.service.ForegroundService: format != null format[2] = 0;--isHdmiIn---->false; AdbProcessImpl::out:04-12 11:35:17.738339 15438 E omx_vdec: this frame is Error frame!,pOutput.timeUs = 0 AdbProcessImpl::out:04-12 11:35:17.825339 15438 I chatty: uid=1046(mediacodec) omx_dec_output identical 2 lines 04-12 11:35:17.903339 15438 E omx_vdec: this frame is Error frame!,pOutput.timeUs = 0 04-12 11:35:18.014 14920 14994 W com.github.mycrl.mirror: Packets are starting to be lost, ignore this set of packets. AdbProcessImpl::out:04-12 11:35:18.044242372 E drm-vop-356x: invalid value iFirst=-1, iLast=0 AdbProcessImpl::out:04-12 11:35:18.11500 I mpp_rkvdec2 fdf80200.rkvdec: resetting... 04-12 11:35:18.11500 I mpp_rkvdec2 fdf80200.rkvdec: reset done AdbProcessImpl::out:04-12 11:35:18.044242372 E drm-vop-356x: invalid value iFirst=-1, iLast=0 04-12 11:35:18.115339 15438 E omx_vdec: this frame is Error frame!,pOutput.timeUs = 0 AdbProcessImpl::out:04-12 11:35:18.14522674439 E HdmiInput-navtive: getAudioRate(54): get audio sampling rate failed ,9(Bad file descriptor) 04-12 11:35:18.14522674439 I com.tc.paper.service.ForegroundService: format != null format[2] = 0;--isHdmiIn---->false; AdbProcessImpl::out:04-12 11:35:18.28714821629 W HidlServiceManagement: Waited one second for android.hardware.radio@1.1::IRadio/slot1 AdbProcessImpl::out:04-12 11:35:18.287148148 I hwservicemanager: Since android.hardware.radio@1.1::IRadio/slot1 is not registered, trying to start it as a lazy HAL. 04-12 11:35:18.28814821629 I HidlServiceManagement: getService: Trying again for android.hardware.radio@1.1::IRadio/slot1... AdbProcessImpl::out:04-12 11:35:18.304339 15438 E omx_vdec: this frame is Error frame!,pOutput.timeUs = 0 AdbProcessImpl::out:04-12 11:35:18.435 14920 14994 W com.github.mycrl.mirror: Packets are starting to be lost, ignore this set of packets. AdbProcessImpl::out:04-12 11:35:18.437 14920 15426 D BufferPoolAccessor2.0: bufferpool2 0xb40000767de0ab28 : 4(32768 size) total buffers - 4(32768 size) used buffers - 0/5 (recycle/alloc) - 251/64219 (fetch/transfer) 04-12 11:35:18.45500 I mpp_rkvdec2 fdf80200.rkvdec: resetting... 04-12 11:35:18.45600 I mpp_rkvdec2 fdf80200.rkvdec: reset done AdbProcessImpl::out:04-12 11:35:18.461242372 E drm-vop-356x: invalid value iFirst=-1, iLast=0 AdbProcessImpl::out:04-12 11:35:18.461242372 E drm-vop-356x: invalid value iFirst=-1, iLast=0 04-12 11:35:18.561339 15438 E omx_vdec: this frame is Error frame!,pOutput.timeUs = 0 AdbProcessImpl::out:04-12 11:35:18.572339 15438 I chatty: uid=1046(mediacodec) omx_dec_output identical 1 line 04-12 11:35:18.627339 15438 E omx_vdec: this frame is Error frame!,pOutput.timeUs = 0 04-12 11:35:18.64522674439 E HdmiInput-navtive: getAudioRate(54): get audio sampling rate failed ,9(Bad file descriptor) 04-12 11:35:18.64522674439 I com.tc.paper.service.ForegroundService: format != null format[2] = 0;--isHdmiIn---->false; wait for the end of the current command to run AdbProcessImpl::out:04-12 11:35:18.772339 15438 E omx_vdec: this frame is Error frame!,pOutput.timeUs = 0 AdbProcessImpl::out:04-12 11:35:18.800 14920 14994 W com.github.mycrl.mirror: Packets are starting to be lost, ignore this set of packets. AdbProcessImpl::out:04-12 11:35:18.827242372 E drm-vop-356x: invalid value iFirst=-1, iLast=0 wait for the end of the current command to run wait for the end of the current command to run update devices... adb run AdbProcessImpl::out:List of devices attached 192.168.2.245:5555offline update devices... adb run AdbProcessImpl::out:List of devices attached 192.168.2.245:5555offline 这里开始重启 adb logcat adb run AdbProcessImpl::out:--------- beginning of kernel AdbProcessImpl::out:04-12 11:35:26.37800 I: Booting Linux on physical CPU 0x0000000000 [0x412fd050] 04-12 11:35:26.37800 I: Linux version 4.19.232 (zckj003@zckj-PowerEdge-R740) (gcc version 6.3.1 20170404 (Linaro GCC 6.3-2017.05), GNU ld (Linaro_Binutils-2017.05) 2.27.0.20161019) #168 SMP PREEMPT Fri Jan 26 13:58:09 CST 2024 04-12 11:35:26.37800 I Machine model: Rockchip RK3568 EVB1 DDR4 V10 Board 04-12 11:35:26.37800 I earlycon: uart8250 at MMIO32 0x00000000fe660000 (options \'\') 04-12 11:35:26.37800 I: bootconsole [uart8250] enabled 04-12 11:35:26.37800 I Reserved memory: created CMA memory pool at 0x0000000010000000, size 8 MiB 04-12 11:35:26.37800 I OF: reserved mem: initialized node linux,cma, compatible id shared-dma-pool 04-12 11:35:26.37800 D: On node 0 totalpages: 1043968 04-12 11:35:26.37800 D DMA32 zone: 15288 pages used for memmap 04-12 11:35:26.37800 D DMA32 zone: 0 pages reserved 04-12 11:35:26.37800 D DMA32 zone: 978432 pages, LIFO batch:63 04-12 11:35:26.37800 D Normal zone: 1024 pages used for memmap 04-12 11:35:26.37800 D Normal zone: 65536 pages, LIFO batch:15 04-12 11:35:26.37800 I psci : probing for conduit method from DT. 04-12 11:35:26.37800 I psci : PSCIv1.1 detected in firmware. 后面再从debug串口拉kernel日志，也没有发现异常信息： 重启的时间节点是：12:47:22:156，这里时间出现了断层 [20240418_12:47:06:601][ 2219.831726] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:06:620][ 2219.840949] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:06:623][ 2219.850260] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:06:637][ 2219.859283] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:06:640][ 2219.868721] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:06:652][ 2219.878026] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:07:164][ 2220.394713] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:07:185][ 2220.403918] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:07:185][ 2220.413427] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:07:198][ 2220.422951] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:07:198][ 2220.432673] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:07:203][ 2220.437310] mpp_rkvdec2 fdf80200.rkvdec: resetting... [20240418_12:47:07:204][ 2220.437574] mpp_rkvdec2 fdf80200.rkvdec: reset done [20240418_12:47:07:220][ 2220.442131] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:07:661][ 2220.880219] mpp_rkvdec2 fdf80200.rkvdec: resetting... [20240418_12:47:07:662][ 2220.880434] mpp_rkvdec2 fdf80200.rkvdec: reset done [20240418_12:47:07:678][ 2220.899953] mpp_rkvdec2 fdf80200.rkvdec: resetting... [20240418_12:47:07:679][ 2220.900192] mpp_rkvdec2 fdf80200.rkvdec: reset done [20240418_12:47:07:725][ 2220.958483] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:07:737][ 2220.967950] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:07:758][ 2220.977327] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:07:759][ 2220.986706] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:07:774][ 2220.995945] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:07:775][ 2221.005265] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:08:057][ 2221.277908] mpp_rkvdec2 fdf80200.rkvdec: resetting... [20240418_12:47:08:057][ 2221.278107] mpp_rkvdec2 fdf80200.rkvdec: reset done [20240418_12:47:08:290][ 2221.521473] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:08:300][ 2221.531058] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:08:320][ 2221.540282] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:08:320][ 2221.549842] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:08:338][ 2221.559429] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:08:341][ 2221.568775] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:08:855][ 2222.085852] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:08:865][ 2222.095716] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:08:871][ 2222.105005] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:08:884][ 2222.114235] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:08:904][ 2222.123568] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:08:907][ 2222.132662] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:09:261][ 2222.480719] mpp_rkvdec2 fdf80200.rkvdec: resetting... [20240418_12:47:09:261][ 2222.480930] mpp_rkvdec2 fdf80200.rkvdec: reset done [20240418_12:47:09:419][ 2222.649631] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:09:440][ 2222.659591] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:09:441][ 2222.669152] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:09:445][ 2222.678924] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:09:457][ 2222.688101] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:09:476][ 2222.697148] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:09:983][ 2223.214064] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:10:003][ 2223.223217] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:10:004][ 2223.232235] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:10:024][ 2223.241833] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:10:024][ 2223.250851] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:10:036][ 2223.260205] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:10:212][ 2223.444518] mpp_rkvdec2 fdf80200.rkvdec: resetting... [20240418_12:47:10:213][ 2223.444786] mpp_rkvdec2 fdf80200.rkvdec: reset done [20240418_12:47:10:546][ 2223.776552] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:10:565][ 2223.785583] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:10:566][ 2223.794561] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:10:573][ 2223.803508] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:10:583][ 2223.813076] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:10:603][ 2223.822687] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:11:110][ 2224.340070] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:11:130][ 2224.349244] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:11:131][ 2224.358389] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:11:136][ 2224.368450] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:11:137][ 2224.373279] mpp_rkvdec2 fdf80200.rkvdec: resetting... [20240418_12:47:11:150][ 2224.373498] mpp_rkvdec2 fdf80200.rkvdec: reset done [20240418_12:47:11:150][ 2224.379418] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:11:168][ 2224.388894] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:11:185][ 2224.412906] mpp_rkvdec2 fdf80200.rkvdec: resetting... [20240418_12:47:11:185][ 2224.413132] mpp_rkvdec2 fdf80200.rkvdec: reset done [20240418_12:47:11:676][ 2224.906275] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:11:684][ 2224.915920] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:11:695][ 2224.925303] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:11:707][ 2224.934524] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:11:707][ 2224.944490] mpp_rkvdec2 fdf80200.rkvdec: resetting... [20240418_12:47:11:708][ 2224.944765] mpp_rkvdec2 fdf80200.rkvdec: reset done [20240418_12:47:11:715][ 2224.945293] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:11:732][ 2224.954716] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:12:241][ 2225.471462] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:12:261][ 2225.480704] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:12:261][ 2225.489943] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:12:278][ 2225.499040] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:12:278][ 2225.508213] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:12:292][ 2225.517340] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:12:673][ 2225.903685] rk817_digital_mute 1 [20240418_12:47:12:674][ 2225.904733] rk817_codec_ctl_gpio set spk clt 1 [20240418_12:47:12:803][ 2226.034001] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:12:811][ 2226.043143] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:12:823][ 2226.052276] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:12:841][ 2226.061627] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:12:841][ 2226.070829] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:12:858][ 2226.080008] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:13:365][ 2226.596242] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:13:385][ 2226.605276] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:13:385][ 2226.614876] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:13:393][ 2226.624149] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:13:404][ 2226.633813] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:13:424][ 2226.644026] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:13:755][ 2226.981150] mpp_rkvdec2 fdf80200.rkvdec: resetting... [20240418_12:47:13:755][ 2226.981367] mpp_rkvdec2 fdf80200.rkvdec: reset done [20240418_12:47:13:927][ 2227.160406] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:13:939][ 2227.169606] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:13:958][ 2227.179251] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:13:959][ 2227.188812] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:13:967][ 2227.198058] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:13:990][ 2227.207357] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:14:240][ 2227.460386] mpp_rkvdec2 fdf80200.rkvdec: resetting... [20240418_12:47:14:241][ 2227.460608] mpp_rkvdec2 fdf80200.rkvdec: reset done [20240418_12:47:14:351][ 2227.589238] rk817_digital_mute 0 [20240418_12:47:14:351][ 2227.589265] ====yangzutian========HP_PATH==============3 [20240418_12:47:14:364][ 2227.589274] rk817_codec_ctl_gpio set spk clt 0 [20240418_12:47:14:443][ 2227.663132] healthd: battery l=50 v=3 t=2.6 h=2 st=3 fc=100 chg=au [20240418_12:47:14:493][ 2227.724537] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:14:504][ 2227.733637] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:14:524][ 2227.753549] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:14:543][ 2227.762734] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:14:544][ 2227.772309] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:14:551][ 2227.781437] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:14:999][ 2228.231066] mpp_rkvdec2 fdf80200.rkvdec: resetting... [20240418_12:47:15:000][ 2228.231304] mpp_rkvdec2 fdf80200.rkvdec: reset done [20240418_12:47:15:009][ 2228.238282] mpp_rkvdec2 fdf80200.rkvdec: resetting... [20240418_12:47:15:009][ 2228.238497] mpp_rkvdec2 fdf80200.rkvdec: reset done [20240418_12:47:15:067][ 2228.298127] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:15:090][ 2228.307551] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:15:090][ 2228.317146] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:15:095][ 2228.326465] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:15:102][ 2228.335511] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:15:118][ 2228.344680] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:15:243][ 2228.460768] mpp_rkvdec2 fdf80200.rkvdec: resetting... [20240418_12:47:15:243][ 2228.460966] mpp_rkvdec2 fdf80200.rkvdec: reset done [20240418_12:47:15:497][ 2228.717015] mpp_rkvdec2 fdf80200.rkvdec: resetting... [20240418_12:47:15:498][ 2228.717236] mpp_rkvdec2 fdf80200.rkvdec: reset done [20240418_12:47:15:633][ 2228.861373] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:15:653][ 2228.873367] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:15:653][ 2228.882403] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:15:660][ 2228.891404] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:15:683][ 2228.900576] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:15:684][ 2228.909669] m00_b_rk628-csi 4-0051: timing err, htotal:0, vtotal:0 [20240418_12:47:22:156]DDR V1.16 6f71c736ce typ 23/03/02-20:01:48 [20240418_12:47:22:156]In [20240418_12:47:22:156]LP4/4x derate en, other dram:2x trefi [20240418_12:47:22:156]ddrconfig:15 [20240418_12:47:22:157]DDR4, 324MHz [20240418_12:47:22:161]BW=32 Col=10 Bk=4 BG=2 CS0 Row=17 CS=1 Die BW=16 Size=4096MB [20240418_12:47:22:161]tdqss: cs0 dqs0: 168ps, dqs1: 144ps, dqs2: 72ps, dqs3: 24ps, [20240418_12:47:22:161] [20240418_12:47:22:161]change to: 324MHz [20240418_12:47:22:161]clk skew:0x8d [20240418_12:47:22:162]PHY drv:clk:37,ca:37,DQ:37,odt:0 [20240418_12:47:22:162]vrefinner:50%, vrefout:50% [20240418_12:47:22:162]dram drv:34,odt:0 [20240418_12:47:22:162] [20240418_12:47:22:162]change to: 528MHz [20240418_12:47:22:167]clk skew:0x8d [20240418_12:47:22:167]PHY drv:clk:37,ca:37,DQ:37,odt:0 [20240418_12:47:22:167]vrefinner:50%, vrefout:50% [20240418_12:47:22:167]dram drv:34,odt:0 板子供电是使用的12V5A适配器，排除供电不足的缘故，有在日志搜索了watchdog、reboot reason关键字， watchdog只在重启后有相关日志记录，重启前没找到， reboot reason在应用日志里的几个记录，分别是： bootstat: Canonical boot reason: reboot bootstat: Canonical boot reason: reboot bootstat: Value of persist.sys.boot.reason : bootstat: Normalized last reboot reason : reboot reboot reason在kernel日志里的几个记录，分别是： ANDROID: reboot reason: \"(none)\" Kernel command line: storagemedia=emmc androidboot.storagemedia=emmc androidboot.mode=normalandroidboot.dtb_idx=0 androidboot.dtbo_idx=0androidboot.verifiedbootstate=orange androidboot.serialno=1b7f5d7078fcadf7 console=ttyFIQ0 androidboot.baseband=N/A androidboot.wificountrycode=CN androidboot.veritymode=enforcing androidboot.hardware=rk30board androidboot.console=ttyFIQ0 androidboot.verifiedbootstate=orange firmware_class.path=/vendor/etc/firmware init=/init rootwait ro loop.max_part=7 androidboot.selinux=permissive buildvariant=userdebug earlycon=uart8250,mmio32,0xfe660000 androidboot.boot_devices=fe310000.sdhci,fe330000.nandc 除此之外，“panic”、“died”的关键词也没有搜索到与重启相关。 对于这个问题，度娘谷哥都翻遍了，还没有头绪
2024-04-26 10:51
ElfBoard的IMX6U 核心板是EMMC 版本，DDR 是 512M。启动系统后，在串口终端执行以下指令可以查看到剩余 DDR容量： root@ELF1:~# cat /proc/meminfo 可以看到总DDR为 507732 kB，剩余387800 kB。因为出厂系统版本不同，所以实际剩余 DDR 容量大小可能不同，以实际测试为准。
2024-04-26 10:23
有哪位大神可以帮忙推荐一颗2.4G纯放大功能的芯片 单通道的PA芯片，没有俩个控制功能，就是单向纯放大器
2024-04-26 10:19
ElfBoard的IMX6U 核心板是EMMC 版本，DDR 是 512M。启动系统后，在串口终端执行以下指令可以查看到剩余 DDR容量： root@ELF1:~# cat /proc/meminfo 可以看到总DDR为 507732 kB，剩余387800 kB。因为出厂系统版本不同，所以实际剩余 DDR 容量大小可能不同，以实际测试为准。
2024-04-26 10:15
问题： 查看有些原理图的设计时，经常看到串一些小电阻，如0Ω，22Ω，33Ω等等，但是也不是一定串。同样场合有的串，有的不串。这是为什么呢？这里电阻串联的意义是什么呢？什么时候需要串电阻呢，阻值取多大呢？ 关于这个问题，我们先看下网上的一些答案： 有人说： 参考设计上推荐的，应该是经验设计预留，为了后续调试方便。 有人说： 为了保护接口，抵抗小能量电压脉冲，防止信号脉冲损坏接口的。 举个简单的例子： 一个串口通讯的提示信号，当接上串口时，因为瞬间的插拔产生了一个很窄的电压脉冲，如果这个脉冲直接打到GPIO口，很可能打坏芯片，但是串了一个小电阻，很容易把能力给消耗掉。如果脉冲是5mA 5.1V，那么过了30Ω后就是5v左右了。 还有人说： 主要是基于阻抗匹配方面的考虑，以达到时序统一，延迟时间，走线电容等不会超过范围！原因在于LAYOUT时可能走线方面不是很匹配！ 那么到底是为了什么呢？ 很多时候，高速数字信号传输线上会串电阻，目的是解决阻抗匹配问题，阻抗不匹配会导致信号反射、过冲等问题。 电磁波类似光一样在同一种介质中传播方向和能量不会衰减，但如果光从一种介质发射到另外一种介质的时候会发生反射和折射现象，那么光到达终端的能量会衰减很多吧。同理高速数字信号从源端向终端传输过程中由于连接线或者PCB LAYOUT的原因导致部分阻抗不连续（比如要求传输线阻抗为100欧，但是PCB有的部分是100欧，但是中途打过孔或者线宽发生变化就会引起阻抗的不连续）就会导致信号反射，反射的信号在传输线中又会与原信号叠加，信号被干扰了，终端接收这样的信号解码会出错。 一般来讲，高速信号接口上串电阻基本就是阻抗匹配作用，一般来说如果LAYOUT比较好此电阻贴0欧没问题的，如果出现问题，就可以通过改变串连的小电阻来调节信号质量，从而达到消除过冲、振铃目的。
2024-04-26 09:31
2024-04-26 09:26
环境：ide是iar for stm8 v3.10.4 版本， 芯片stm8L051，调试器是Risym 的ST-LINK v2, swim连接 部分程序如下： void main(void) { CLK_Config(); ioConfig(); ADC_Config(); timerConfig enableInterrupts(); ... } enableInterrupts()是iar 开中断的函数 问题描述：程序和硬件都没有修改，前两天调试都没有问题，今天再来调试只要执行到enableInterrupts(); 这一行IAR 软件就卡死了，几秒钟以后就自动关闭了。 程序可以下载进去，非调试模式也能正常运行。有遇到相似问题的么，有谁知道如何解决？
2024-04-26 08:29
最近想用stm8l做一个led表，需要用到触摸功能。大家有没有用过官方的触摸库，好用吗？效果如何，灵敏度好吗？
2024-04-26 08:28
如题所示，使用STOP低功耗模式，功耗下来了，STOP模式每次最大只能32秒左右（RTC寄存器满了），所以就循环多次（5分钟就是10次左右）。 启动时读取一次ADC数据（电池电压比如是4.10V），进入STOP，RTC唤醒后读出来的ADC没有变化（依然是4.10V）。以前没有进入STOP模式，连续读取是OK的。 请问大虾，这大概是什么问题？
2024-04-26 08:27
