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【接上一章MY-IMX6-EK200 Linux-4.1.15 測試手冊（2）】
10.2 ECSPI2 測試位置：J7: 8,10 測試設備：/dev/spidev1.0 測試指令 # /my-demo/linux-4.1.15/MY_SPIDEV_TEST_L4115_MYIMX6A9.out -D /dev/spidev1.0
spi mode: 0 bits per word: 8 max speed: 500000 Hz (500 KHz)
FF FF FF FF FF FF 40 00 00 00 00 95 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF DE AD BE EF BA AD F0 0D
11 Watchdog 測試
11.1 超時復位測試# /unit_tests/wdt_driver_test.out 10 15 1
Starting wdt_driver (timeout: 10, sleep: 15, test: write) Trying to set timeout value=10 seconds The actual timeout was set to 10 seconds Now reading back -- The timeout is 10 seconds
U-Boot 2016.03-svn270 (Oct 09 2018 - 14:44:15 +0800)
CPU: Freescale i.MX6Q rev1.5 996 MHz (running at 792 MHz) CPU: Extended Commercial temperature grade (-20C to 105C) at 45C Reset cause: WDOG Board: MYZR i.MX6 Evaluation Kit
11.2 喂狗測試# /unit_tests/wdt_driver_test.out 4 2 1 &
[1] 748 Starting wdt_driver (timeout: 4, sleep: 2, test: write) Trying to set timeout value=4 seconds The actual timeout was set to 4 seconds Now reading back -- The timeout is 4 seconds
12 RTC 測試查看當前系統時鐘 # date
Wed Sep 26 00:27:45 UTC 2018 查看當前RTC芯片時鐘 # hwclock
Wed Sep 26 00:28:01 2018 0.000000 seconds 設置系統時鐘，并同步到RTC芯片 # date -s "2018-09-21 12:34:56"
Fri Sep 21 12:34:56 UTC 2018 將系統時鐘寫入硬件時鐘 # hwclock -w 斷電重啟評估板 查看當前系統時鐘 # date
Fri Sep 21 12:36:11 UTC 2018 查看當前RTC芯片時鐘 # hwclock
Fri Sep 21 12:36:16 2018 0.000000 seconds
13 定時喚醒測試設定 10 秒后產生喚醒事件 # echo +10 > /sys/class/rtc/rtc1/wakealarm 使設備進入 # echo mem > /sys/power/state 睡眠信息 PM: Syncing filesystems ... done. Freezing user space processes ... (elapsed 0.001 seconds) done. Freezing remaining freezable tasks ... (elapsed 0.001 seconds) done. Suspending console(s) (use no_console_suspend to debug) PM: suspend of devices complete after 59.213 msecs PM: suspend devices took 0.060 seconds PM: late suspend of devices complete after 1.004 msecs PM: noirq suspend of devices complete after 1.031 msecs Disabling non-boot CPUs ... CPU1: shutdown CPU2: shutdown CPU3: shutdown Enabling non-boot CPUs ... CPU1 is up CPU2 is up CPU3 is up PM: noirq resume of devices complete after 1.138 msecs PM: early resume of devices complete after 1.136 msecs PM: resume of devices complete after 116.878 msecs PM: resume devices took 0.120 seconds Restarting tasks ... done. 喚醒信息 (elapsed 0.012 seconds) done. PM: suspend of devices complete after 693.963 msecs PM: suspend devices took 0.700 seconds PM: late suspend of devices complete after 2.419 msecs PM: noirq suspend of devices complete after 2.303 msecs Disabling non-boot CPUs ... PM: noirq resume of devices complete after 1.402 msecs PM: early resume of devices complete after 1.476 msecs PM: resume of devices complete after 121.763 msecs PM: resume devices took 0.130 seconds Restarting tasks ... done.
14 音頻測試
14.1 播放音頻# aplay /unit_tests/audio8k16S.wav
Playing WAVE '/unit_tests/audio8k16S.wav' : Signed 16 bit Little Endian, Rate 8000 Hz, Stereo
14.2 音頻錄音錄音 # arecord -d 5 -f S16_LE -t wav foobar.wav 播放錄音 # aplay foobar.wav
15 顯示屏(選配)測試特別說明： 當U-Boot 版本u-boot-2016.03 svn315及以上 內核 版本 linux-3.0.35 svn31及以上 linux-3.14.52 svn369及以上 linux-3.14.52 svn368及以上 燒錄工具 MfgTool-MYIMX6A9-L* svn181及以上 請參考《MY-IMX6-A9系列：顯示功能測試》進行測試 一般情況下則按照如下方法測試 在系統啟動過程中，可以看到 Linux 小企鵝和 OpenEmbedded 啟動畫面。
【下章節MY-IMX6-EK200 Linux-4.1.15 測試手冊（4）】
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