T113S3改完调试串口问题

[z2500abc]

T113S3调试串口从SDK中的UART0改到UART3后，串口能够打印出正确的log,但是不能够去进行敲命令进行交互。使用adb shell 就可以进行命令式交互。。

以下是截取串口打印的部分log

 1.399524] CAN device driver interface
[    1.404511] usbcore: registered new interface driver asix
[    1.410653] usbcore: registered new interface driver ax88179_178a
[    1.417622] usbcore: registered new interface driver cdc_ether
[    1.424268] usbcore: registered new interface driver net1080
[    1.430681] usbcore: registered new interface driver cdc_subset
[    1.437410] usbcore: registered new interface driver zaurus
[    1.443765] usbcore: registered new interface driver cdc_ncm
[    1.450117] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[    1.457456] sunxi-ehci: EHCI SUNXI driver
[    1.462389] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[    1.469369] sunxi-ohci: OHCI SUNXI driver
[    1.474549] usbcore: registered new interface driver uas
[    1.480601] usbcore: registered new interface driver usb-storage
[    1.487456] usbcore: registered new interface driver ums-alauda
[    1.494189] usbcore: registered new interface driver ums-cypress
[    1.500985] usbcore: registered new interface driver ums-datafab
[    1.507799] usbcore: registered new interface driver ums_eneub6250
[    1.514817] usbcore: registered new interface driver ums-freecom
[    1.521633] usbcore: registered new interface driver ums-isd200
[    1.528354] usbcore: registered new interface driver ums-jumpshot
[    1.535281] usbcore: registered new interface driver ums-karma
[    1.541879] usbcore: registered new interface driver ums-onetouch
[    1.548809] usbcore: registered new interface driver ums-realtek
[    1.555631] usbcore: registered new interface driver ums-sddr09
[    1.562331] usbcore: registered new interface driver ums-sddr55
[    1.569050] usbcore: registered new interface driver ums-usbat
[    1.575769] usbcore: registered new interface driver option
[    1.582072] usbserial: USB Serial support registered for GSM modem (1-port)
[    1.590943] input: sunxi-ts as /devices/platform/soc@3000000/2009c00.rtp/input/input1
[    1.600472] sunxi_gpadc_init,2151, success
[    1.605458] sunxi_gpadc_setup: get channel scan data failed
[    1.612002] input: sunxi-gpadc0 as /devices/virtual/input/input2
[    1.619761] sunxi-rtc 7090000.rtc: errata__fix_alarm_day_reg_default_value(): ALARM0_DAY_REG=0, set it to 1
[    1.631102] sunxi-rtc 7090000.rtc: Warning: Using internal RC 16M clock source. Time may be inaccurate!
[    1.641858] sunxi-rtc 7090000.rtc: Warning: Using internal RC 16M clock source. Time may be inaccurate!
[    1.653201] sunxi-rtc 7090000.rtc: registered as rtc0
[    1.658904] sunxi-rtc 7090000.rtc: Warning: Using internal RC 16M clock source. Time may be inaccurate!
[    1.669577] sunxi-rtc 7090000.rtc: setting system clock to 1970-01-01T00:00:44 UTC (44)
[    1.678601] sunxi-rtc 7090000.rtc: sunxi rtc probed
[    1.684636] i2c /dev entries driver
[    1.688772] IR NEC protocol handler initialized
[    1.693879] IR RC5(x/sz) protocol handler initialized
[    1.699996] sunxi-rc-recv 7040000.s_cir: sunxi_irrx_resource_get: get ir protocol failed
[    1.709197] Registered IR keymap rc_map_sunxi
[    1.714268] rc rc0: sunxi-ir as /devices/platform/soc@3000000/7040000.s_cir/rc/rc0
[    1.722969] input: sunxi-ir as /devices/platform/soc@3000000/7040000.s_cir/rc/rc0/s_cir_rx
[    1.733446] [VIN_WARN]sensor_helper_probe: cannot get sensor0_cameravdd supply, setting it to NULL!
[    1.743640] [VIN_WARN]sensor_helper_probe: cannot get sensor0_iovdd supply, setting it to NULL!
[    1.753427] [VIN_WARN]sensor_helper_probe: cannot get sensor0_avdd supply, setting it to NULL!
[    1.763092] [VIN_WARN]sensor_helper_probe: cannot get sensor0_dvdd supply, setting it to NULL!
[    1.774906] usbcore: registered new interface driver uvcvideo
[    1.781358] USB Video Class driver (1.1.1)
[    1.785995] gspca_main: v2.14.0 registered
[    1.790588] sunxi cedar version 1.1
[    1.794734] sunxi-cedar 1c0e000.ve: Adding to iommu group 0
[    1.801011] VE: sunxi_cedar_probe power-domain init!!!
[    1.806800] VE: install start!!!
[    1.806800] 
[    1.812386] VE: cedar-ve the get irq is 41
[    1.812386] 
[    1.818913] VE: ve_debug_proc_info:(ptrval), data:(ptrval), lock:(ptrval)
[    1.818913] 
[    1.828209] VE: install end!!!

以下是ADB SHELL连接后的信息

BusyBox v1.33.2 (2023-09-13 11:29:20 UTC) built-in shell (ash)

 _____  _              __     _
|_   _||_| ___  _ _   |  |   |_| ___  _ _  _ _
  | |   _ |   ||   |  |  |__ | ||   || | ||_'_|
  | |  | || | || _ |  |_____||_||_|_||___||_,_|
  |_|  |_||_|_||_|_|  Tina is Based on OpenWrt!
 -----------------------------------------------------
 Tina 5.0, OpenWrt 21.02-SNAPSHOT unknown
 -----------------------------------------------------
root@TinaLinux:/#

[tivon]

@z2500abc 看我以前的帖子

[jasonzhang]

@z2500abc 串口能打印完整，表示内核中打印串口是正常的，ADB shell能连接，表示文件系统也启动了；那么大概率是你文件系统调试串口没有改，需要在/etc/inittab中将输出串口改成你当前的串口，例如这个
ttyS3::respawn:/sbin/getty -L ttyS3 0 vt100 # GENERIC_SERIAL

[z2500abc]

@jasonzhang 好的 感谢 马上试试

[z2500abc]

@tivon 好，感谢大佬的指导