Mango-AM335x Hardware Test Manual

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1 Mango-AM335x Hardware Test Manual Crazy Embedded Laboratory cafe.naver.com/embeddedcrazyboys CRZ Technology 1

2 Document History Revision Date Change note Init 전종인 2

3 1. 시작하기 MMC 부팅이미지 Write 및부팅하기 이미지압축풀기 이미지 Write 하기 U-boot, 커널이미지 Window PC에서업데이트하기 Debug Console 검증 LCD 정전식터치 LCD (1024 x 600 ) 검증 감압식터치 LCD (800 x 600 ) 검증 감압식터치 LCD (800 x 480 ) 검증 USB Host 테스트 USB Device 검증 Window PC Linux PC 확인방법 Mango-AM335x Debug Cosole에서확인하기 Gbit Ethernet 검증 Gbit Ethernet TCP 속도측정결과 Gbit Ethernet UDP 속도측정결과 Key Button 검증 NAND 디바이스검증 RTC Test cafe.naver.com/embeddedcrazyboys CRZ Technology 3

4 1. 시작하기 처음시작하기위해서보드와엑세사리가필요합니다. Debug Console 과 AC/DC 어댑터 5V, 사용할 LCD 를연결합니다. 4

5 디바이스검증을완료했습니다. Up to 1-GHz Sitara ARM Cortex -A8 32-Bit RISC Processor 256MB NAND 내장 512MB DDR3 DRAM MMC, NAND Booting 지원 USB Host 2.0 x 2 지원 Gbit Ethernet x 2 지원 Micro MMC Card Slot x 1 지원 RTC 지원 Indicator LED x 2 Debug UART x 1 USB 2.0 Device x 1 KEY Button x 1 TFT LCD Controller 내장 Expansion Connector 지원 : Audio, I2C, GPIO, etc OS : Android, Linux, 2. MMC 부팅이미지 Write 및부팅하기 2.1. 이미지압축풀기 $ tar xvf m3358_buildroot_xxx_image.tgz 2.2. 이미지 Write 하기 리눅스 PC에 Micro SDHC 8GB 카드를삽입합니다. [icanjji@icanjji-samsung-desktop-system image]$ dmesg tail [ ] sd 24:0:0:0: [sdg] Write Protect is off [ ] sd 24:0:0:0: [sdg] Mode Sense: [ ] sd 24:0:0:0: [sdg] No Caching mode page present [ ] sd 24:0:0:0: [sdg] Assuming drive cache: write through [ ] sd 24:0:0:0: [sdg] No Caching mode page present [ ] sd 24:0:0:0: [sdg] Assuming drive cache: write through [ ] sdg: sdg1 sdg2 [ ] sd 24:0:0:0: [sdg] No Caching mode page present cafe.naver.com/embeddedcrazyboys CRZ Technology 5

6 [ ] sd 24:0:0:0: [sdg] Assuming drive cache: write through [ ] sd 24:0:0:0: [sdg] Attached SCSI removable disk 디바이스이름확인 image]$ sudo./create-sdcard.sh [sudo] password for icanjji: ############################################################################ #### This script will create a bootable SD card from custom or pre-built binaries. The script must be run with root permissions and from the bin directory of the SDK Example: $ sudo./create-sdcard.sh Formatting can be skipped if the SD card is already formatted and partitioned properly. ############################################################################ #### Availible Drives to write images to: # major minor size name 1: sdg Enter Device Number or n to exit: 디바이스 1 입력후 Enter 키를입력하면자동으로 Write 를합니다. Write 된 Micro SD 카드를보드에삽입하고, 부팅스위치를 MMC0 부팅모드로하면됩니다. 4 번 ON 나머지 OFF 합니다. 6

7 3. U-boot, 커널이미지 Window PC 에서업데이트하기 Micro SD 카드를 Window PC 에장착합니다. 위와같이파일이보일것입니다. 컴파일된커널이미지를복사를하면됩니다. 복사후 꺼내기 선택합니다. cafe.naver.com/embeddedcrazyboys CRZ Technology 7

8 4. Debug Console 검증 UART 커넥터에커넥터를삽입후 PC에서 COM Port를확인후터미널프로그램테라텀, putty 등을실행후 Baudrate : 설정 HW Control : NO RTS, CTS : NO 위와같이설정하면됩니다. 그리고, 전원을인가하면, 터미널창으로부팅로그가나오면됩니다. 5. LCD 정전식터치 LCD (1024 x 600 ) 검증 8

$타이밍은아래와같이맞추었습니다. /* Innolux 7" AT070TNA2 Distplay */ [4] = {.name = "INNO_AT070TNA2",.width = 1024,.$

9 타이밍은아래와같이맞추었습니다. /* Innolux 7" AT070TNA2 Distplay */ [4] = {.name = "INNO_AT070TNA2",.width = 1024,.height = 600,.hfp = 60,,.hbp = 60, cafe.naver.com/embeddedcrazyboys CRZ Technology 9

10 },.hsw = 200,.vfp = 5,.vbp = 5,,.vsw = 25,.pxl_clk = ,//50MHz.invert_pxl_clk = 1, 커널에서 Configuration 이되어있는지확인후커널빌드후이미지를 Write 합니다. CONFIG_FB_INNO_7INCH_1024X600=y CONFIG_MANGO_TOUCH_FT6x36_5INCH=y Mango-AM335x-ST 7 LCD 1024x600 Display 테스트동영상링크 #0 Mango-AM335x-ST 7 LCD 1024x600 Display 테스트동영상링크 #1 # ts_calibrate 명령으로터치보정을합니다. 터치테스트는아래명령으로테스트하면됩니다. # ts_test 명령을실행하면, 아래와같이화면이나옵니다. 10

11 7 정전식터치테스트동영상 # 감압식터치 LCD (800 x 600 ) 검증 Innolux 10.4 인치 LCD 와 CR-LIF2-RT104R001_V1 보드를준비합니다. LSA40AT9001 LCD Datsheet 를보면타이밍이나옵니다. cafe.naver.com/embeddedcrazyboys CRZ Technology 11

12 타이밍을맞추도록합니다. 전에 Configuration 파일을수정을합니다. drivers/video/kconfig config FB_INNO_104INCH_800X600 tristate "Mango LSA40AT INCH 800x600 Display" depends on FB_DA8XX ---help--- This is the frame buffer device driver for the 10.4inch 800_600 found on DA8xx/OMAP-L1xx SoCs. drivers/video/da8xx-fb.c 파일에아래내용추가 #ifdef CONFIG_FB_INNO_104INCH_800X600 /* Innolux 10.4" Distplay */ [4] = {.name = "INNO_LSA40AT9001",.width = 800,.height = 600,.hfp = 60,//354,//210,.hbp = 60,//46, 12

13 },.hsw = 200,//40,//1,.vfp = 5,//77,//12,.vbp = 5,//23,.vsw = 25,//20,//1,.pxl_clk = ,//40MHz.invert_pxl_clk = 0, #endif "arch/arm/mach-omap2/board-am335xevm.c" 파일에내용추가 #ifdef CONFIG_FB_INNO_104INCH_800X600 struct da8xx_lcdc_platform_data INNO_LSA40AT9001_pdata = {.manu_name = "INNO",.controller_data = &lcd_cfg,.panel_power_ctrl= lcd_pwr_ctl, }; #endif.type = "INNO_LSA40AT9001", 그리고, 아래내용추가합니다. static void lcdc_init(int evm_id, int profile) { struct da8xx_lcdc_platform_data *lcdc_pdata; MANGO_DBG_DEFAULT; setup_pin_mux(lcdc_pin_mux); if (conf_disp_pll( )) { pr_info("failed configure display PLL, not attempting to" "register LCDC\n"); return; } MANGO_DBG("evm_id=%d\n",evm_id); cafe.naver.com/embeddedcrazyboys CRZ Technology 13

14 switch (evm_id) { case GEN_PURP_EVM: case GEN_PURP_DDR3_EVM: lcdc_pdata = &TFC_S9700RTWV35TR_01B_pdata; break; case EVM_SK: #ifdef CONFIG_FB_INNO_7INCH_800X480 lcdc_pdata=&ino_ej050na_pdata; #endif #ifdef CONFIG_FB_INNO_7INCH_1024X600 lcdc_pdata=&inno_at070tna2_pdata; ft_touch_init();//crazyboys #endif #ifdef CONFIG_FB_INNO_104INCH_800X600 lcdc_pdata=&inno_lsa40at9001_pdata; #endif 커널 configuration 을합니다. CONFIG_TOUCHSCREEN_TI_TSC=y CONFIG_FB_INNO_104INCH_800X600=y 컴파일후이미지를 SD card 에 Write 후확인해보면됩니다. 전압을확인결과 AVDD : 10.3V VGH : 18V VGL : - 7.3V 테스트결과 # fb-test 14

# ts_calibrate 명령으로터치보정을합니다. 터치테스트는아래명령으로테스트하면됩니다. www.

15 # ts_calibrate 명령으로터치보정을합니다. 터치테스트는아래명령으로테스트하면됩니다. cafe.naver.com/embeddedcrazyboys CRZ Technology 15

16 # ts_test 명령을실행하면, 아래와같이화면이나옵니다 감압식터치 LCD (800 x 480 ) 검증 커널 configuration CONFIG_FB_INNO_7INCH_800X480=y CONFIG_TOUCHSCREEN_TI_TSC=y 테스트결과 16

17 cafe.naver.com/embeddedcrazyboys CRZ Technology 17

# ts_calibrate 명령으로터치보정을합니다. 터치테스트는아래명령으로테스트하면됩니다. # ts_test 명령을실행하면, 아래와같이화면이나옵니다. 6. USB Host 테스트 USB Host는 2개 port가있습니다. USB Storage를보드에삽입하면인식이되고, 자동마운트됩니다. 지원되는파일시스템포맷은 FAT, EXT2, EXT3, EXT4 입니다.

18 # ts_calibrate 명령으로터치보정을합니다. 터치테스트는아래명령으로테스트하면됩니다. # ts_test 명령을실행하면, 아래와같이화면이나옵니다. 6. USB Host 테스트 USB Host는 2개 port가있습니다. USB Storage를보드에삽입하면인식이되고, 자동마운트됩니다. 지원되는파일시스템포맷은 FAT, EXT2, EXT3, EXT4 입니다. 테스트결과 [root@localhost ~]# usb 1-1.2: new high-speed USB device number 3 using musb-hdrc usb 1-1.2: New USB device found, idvendor=058f, idproduct=6366 usb 1-1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=3 usb 1-1.2: Product: Mass Storage Device 18

19 usb 1-1.2: Manufacturer: Generic usb 1-1.2: SerialNumber: 058F scsi0 : usb-storage 1-1.2:1.0 scsi 0:0:0:0: Direct-Access Multiple Card Reader 1.00 PQ: 0 ANSI: 0 sd 0:0:0:0: [sda] byte logical blocks: (7.94 GB/7.40 GiB) sd 0:0:0:0: [sda] Write Protect is off sd 0:0:0:0: [sda] No Caching mode page present sd 0:0:0:0: [sda] Assuming drive cache: write through sd 0:0:0:0: [sda] No Caching mode page present sd 0:0:0:0: [sda] Assuming drive cache: write through sda: sda1 sda2 sd 0:0:0:0: [sda] No Caching mode page present sd 0:0:0:0: [sda] Assuming drive cache: write through sd 0:0:0:0: [sda] Attached SCSI removable disk kjournald starting. Commit interval 5 seconds EXT3-fs (sda2): using internal journal EXT3-fs (sda2): recovery complete EXT3-fs (sda2): mounted filesystem with ordered data mode [root@localhost ~]# [root@localhost ~]# df Filesystem Size Used Avail Use% Mounted on rootfs 7.3G 287M 6.6G 5% / /dev/root 7.3G 287M 6.6G 5% / devtmpfs 250M 0 250M 0% /dev tmpfs 251M 0 251M 0% /dev/shm tmpfs 251M 568K 250M 1% /tmp /dev/sda1 70M 4.1M 66M 6% /media/boot /dev/sda2 7.3G 212M 6.7G 4% /media/rootfs [root@localhost ~]# usb 1-1.1: new high-speed USB device number 4 using musb-hdrc usb 1-1.1: New USB device found, idvendor=8564, idproduct=1000 usb 1-1.1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 usb 1-1.1: Product: Mass Storage Device usb 1-1.1: Manufacturer: JetFlash usb 1-1.1: SerialNumber: 97LX1AOHLGS4DLGZ scsi1 : usb-storage 1-1.1:1.0 scsi 1:0:0:0: Direct-Access JetFlash Transcend 4GB 1100 PQ: 0 ANSI: 4 sd 1:0:0:0: [sdb] byte logical blocks: (3.93 GB/3.66 GiB) cafe.naver.com/embeddedcrazyboys CRZ Technology 19

20 sd 1:0:0:0: [sdb] Write Protect is off sd 1:0:0:0: [sdb] No Caching mode page present sd 1:0:0:0: [sdb] Assuming drive cache: write through sd 1:0:0:0: [sdb] No Caching mode page present sd 1:0:0:0: [sdb] Assuming drive cache: write through sdb: sdb1 sd 1:0:0:0: [sdb] No Caching mode page present sd 1:0:0:0: [sdb] Assuming drive cache: write through sd 1:0:0:0: [sdb] Attached SCSI removable disk <7>usb-storage: *** thread awakened. ~]# df Filesystem Size Used Avail Use% Mounted on rootfs 7.3G 287M 6.6G 5% / /dev/root 7.3G 287M 6.6G 5% / devtmpfs 250M 0 250M 0% /dev tmpfs 251M 0 251M 0% /dev/shm tmpfs 251M 484K 250M 1% /tmp /dev/sda1 70M 4.1M 66M 6% /media/boot /dev/sda2 7.3G 212M 6.7G 4% /media/rootfs /dev/sdb1 3.7G 7.5M 3.7G 1% /media/sdb1 7. USB Device 검증 20

보드에 USB device 에 Mini USB Cable 을연결한후 USB Storage 가 Window PC 에서인식되는것을 확인할수있습니다. USB Gadget 실행하기 [root@localhost ~]#./usb_dev_mass.sh insmod /root/g_mass_storage.

21 보드에 USB device 에 Mini USB Cable 을연결한후 USB Storage 가 Window PC 에서인식되는것을 확인할수있습니다. USB Gadget 실행하기 ~]#./usb_dev_mass.sh insmod /root/g_mass_storage.ko file=/dev/mmcblk0 stall=0 removable=1 gadget: Mass Storage Function, version: 2009/09/11 gadget: Number of LUNs=1 lun0: LUN: removable file: /dev/mmcblk0 gadget: Mass Storage Gadget, version: 2009/09/11 gadget: userspace failed to provide iserialnumber gadget: g_mass_storage ready musb-hdrc musb-hdrc.0: MUSB HDRC host driver musb-hdrc musb-hdrc.0: new USB bus registered, assigned bus number 2 usb usb2: New USB device found, idvendor=1d6b, idproduct=0002 usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1 cafe.naver.com/embeddedcrazyboys CRZ Technology 21

usb usb2: Product: MUSB HDRC host driver usb usb2: Manufacturer: Linux 3.2.0 musb-hcd usb usb2: SerialNumber: musb-hdrc.0 hub 2-0:1.0: USB hub found hub 2-0:1.

22 usb usb2: Product: MUSB HDRC host driver usb usb2: Manufacturer: Linux musb-hcd usb usb2: SerialNumber: musb-hdrc.0 hub 2-0:1.0: USB hub found hub 2-0:1.0: 1 port detected [CRZ] drivers/usb/musb/musb_core.c (960) musb_start: devctl 99 [CRZ] drivers/usb/musb/ti81xx.c (697) ti81xx_musb_enable: [CRZ] drivers/usb/musb/musb_core.c (1000) musb_start: devctl 99 [CRZ] drivers/usb/musb/musb_core.c (468) musb_stage0_irq: [root@localhost ~]# [CRZ] drivers/usb/musb/musb_core.c (468) musb_stage0_irq: [CRZ] drivers/usb/musb/musb_core.c (468) musb_stage0_irq: [CRZ] drivers/usb/musb/musb_core.c (468) musb_stage0_irq: gadget: high-speed config #1: Linux File-Backed Storage 7.1. Window PC 드라이버장치로인식을합니다. Window PC 에서임의의파일을복사할수있습니다 Linux PC 확인방법 [ ] usb 2-1.3: new high-speed USB device number 52 using ehci_hcd [ ] usb-storage 2-1.3:1.0: Quirks match for vid 0525 pid a4a5: [ ] scsi30 : usb-storage 2-1.3:1.0 [ ] scsi 30:0:0:0: Direct-Access Linux File-CD Gadget 0316 PQ: 0 ANSI: 2 [ ] sd 30:0:0:0: Attached scsi generic sg7 type 0 [ ] sd 30:0:0:0: [sdg] byte logical blocks: (7.94 GB/7.40 GiB) [ ] sd 30:0:0:0: [sdg] Write Protect is off [ ] sd 30:0:0:0: [sdg] Mode Sense: 0f [ ] sd 30:0:0:0: [sdg] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA [ ] sdg: sdg1 sdg2 22

23 [ ] sd 30:0:0:0: [sdg] Attached SCSI removable disk dmesg tail 명령으로확인결과 sdg1 디바이스노드이름으로인식을확인했습니다. 마운트를해서장치에파일이나디렉토리를만들어보겠습니다. work]$ sudo mount /dev/sdg1./usb-storage work]$ ls./usb-storage/ CRZ TEST MLO u-boot-spl.bin u-boot.img uimage work]$ sudo touch./usb-storage/crz-linux-gadget-test work]$ ls./usb-storage/ CRZ TEST MLO crz-linux-gadget-test u-boot-spl.bin u-boot.img uimage 7.3. Mango-AM335x Debug Cosole 에서확인하기 디버깅창에서확인하면만든디렉토리이름이보입니다. ~]# mount /dev/mmcblk0p1 boot_dir/ ~]# ls /root/boot_dir/ CRZ TEST/ MLO* crz-linux-gadget-test* u-boot-spl.bin* u-boot.img* uimage* 8. Gbit Ethernet 검증 cafe.naver.com/embeddedcrazyboys CRZ Technology 23

24 Mango-AM335x 보드는 Gbit Ethernet 이 2 개있습니다. Dual 이더넷과 NAT 를구성할수있습니다. Giga 이더넷을보드에연결하고성능테스트결과 8.1. Gbit Ethernet TCP 속도측정결과 <TCP 속도 > 디바이스 UPload 속도 Download 속도 ETH0 38 MBytes 320 Mbits/sec 39.5 MBytes 331 Mbits/sec ETH MBytes 319 Mbits/sec 39.5 MBytes 331 Mbits/sec 테스트결과 [root@localhost ~]# ifconfig 24

25 eth0 Link encap:ethernet HWaddr D0:FF:50:55:FA:60 inet addr: Bcast: Mask: UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:58 errors:0 dropped:19 overruns:0 frame:0 TX packets:15 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:12734 (12.4 KiB) TX bytes:2438 (2.3 KiB) eth1 Link encap:ethernet HWaddr D0:FF:50:55:FA:62 UP BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) lo Link encap:local Loopback inet addr: Mask: UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) ~]# iperf -c i 1 -t Client connecting to , TCP port 5001 TCP window size: 20.2 KByte (default) [ 3] local port connected with port 5001 [ ID] Interval Transfer Bandwidth [ 3] sec 37.8 MBytes 317 Mbits/sec [ 3] sec 38.4 MBytes 322 Mbits/sec [ 3] sec 38.4 MBytes 322 Mbits/sec [ 3] sec 38.0 MBytes 319 Mbits/sec [ 3] sec 38.2 MBytes 321 Mbits/sec [ 3] sec 37.9 MBytes 318 Mbits/sec [ 3] sec 38.1 MBytes 320 Mbits/sec [ 3] sec 38.4 MBytes 322 Mbits/sec cafe.naver.com/embeddedcrazyboys CRZ Technology 25

26 [ 3] sec 38.2 MBytes 321 Mbits/sec [ 3] sec 38.4 MBytes 322 Mbits/sec [ 3] sec 382 MBytes 320 Mbits/sec 8.2. Gbit Ethernet UDP 속도측정결과 <UDP 속도 > 디바이스 UDP Download 속도 UDP Upload 속도 ETH0 250 Mbits/sec ms 48.7 MBytes 408 Mbits/sec 0/ (0%) ms 0/ (0%) ETH0 250 Mbits/sec ms 48.7 MBytes 408 Mbits/sec 0/ (0%) ms 0/ (0%) Client 속도측정결과 [root@localhost ~]# iperf -c u -i 1 -t 10 -b 1000M Client connecting to , UDP port 5001 Sending 1470 byte datagrams UDP buffer size: 160 KByte (default) [ 3] local port connected with port 5001 [ ID] Interval Transfer Bandwidth [ 3] sec 48.0 MBytes 403 Mbits/sec [ 3] sec 47.9 MBytes 402 Mbits/sec [ 3] sec 48.0 MBytes 402 Mbits/sec [ 3] sec 47.9 MBytes 402 Mbits/sec [ 3] sec 48.0 MBytes 402 Mbits/sec [ 3] sec 48.4 MBytes 406 Mbits/sec [ 3] sec 48.6 MBytes 407 Mbits/sec [ 3] sec 48.7 MBytes 408 Mbits/sec [ 3] sec 48.7 MBytes 408 Mbits/sec [ 3] sec 483 MBytes 405 Mbits/sec [ 3] Sent datagrams [ 3] Server Report: 26

27 [ 3] sec 483 MBytes 405 Mbits/sec ms 0/ (0%) [ 3] sec 1 datagrams received out-of-order UDP Server 속도 Mango-AM335x 서버로설정 [root@localhost ~]# iperf -s -u [ 3] sec 298 MBytes 250 Mbits/sec ms 0/ (0%) PC Client로설정 [icanjji@crz-ubuntu ~]$ iperf -c i 1 -t 10 -b 250M WARNING: option -b implies udp testing Client connecting to , UDP port 5001 Sending 1470 byte datagrams UDP buffer size: 224 KByte (default) [ 3] local port connected with port 5001 [ ID] Interval Transfer Bandwidth [ 3] sec 29.8 MBytes 250 Mbits/sec [ 3] sec 29.8 MBytes 250 Mbits/sec [ 3] sec 29.8 MBytes 250 Mbits/sec [ 3] sec 29.8 MBytes 250 Mbits/sec [ 3] sec 29.8 MBytes 250 Mbits/sec [ 3] sec 29.8 MBytes 250 Mbits/sec [ 3] sec 29.8 MBytes 250 Mbits/sec [ 3] sec 29.8 MBytes 250 Mbits/sec [ 3] sec 29.8 MBytes 250 Mbits/sec [ 3] sec 298 MBytes 250 Mbits/sec [ 3] Sent datagrams [ 3] Server Report: [ 3] sec 298 MBytes 250 Mbits/sec ms 0/ (0%) [ 3] sec 1 datagrams received out-of-order 9. Key Button 검증 # hexdump /dev/input/event1 [CRZ] drivers/input/keyboard/gpio_keys.c (361) gpio_keys_isr: ISR GPIO 19 cafe.naver.com/embeddedcrazyboys CRZ Technology 27

28 f c3 000f f e2 000f [CRZ] drivers/input/keyboard/gpio_keys.c (361) gpio_keys_isr: ISR GPIO f c f c NAND 디바이스검증 부팅후아래와같이명력을입력하여테스트합니다. ~]# nandtest /dev/mtd0 ECC corrections: 0 ECC failures : 0 Bad blocks : 0 BBT blocks : : checking... Finished pass 1 successfully [root@localhost ~]# nandtest /dev/mtd1 ECC corrections: 0 ECC failures : 0 Bad blocks : 0 BBT blocks : : checking... Finished pass 1 successfully [root@localhost ~]# nandtest /dev/mtd2 ECC corrections: 0 ECC failures : 0 Bad blocks : 0 BBT blocks : : checking... Finished pass 1 successfully [root@localhost ~]# nandtest /dev/mtd3 ECC corrections: 0 ECC failures : 0 Bad blocks : 0 28

29 BBT blocks : : checking... Finished pass 1 successfully [root@localhost ~]# nandtest /dev/mtd4 ECC corrections: 0 ECC failures : 0 Bad blocks : 0 BBT blocks : 0 001c0000: checking... Finished pass 1 successfully [root@localhost ~]# nandtest /dev/mtd5 ECC corrections: 0 ECC failures : 0 Bad blocks : 0 BBT blocks : : checking... Finished pass 1 successfully [root@localhost ~]# nandtest /dev/mtd6 ECC corrections: 0 ECC failures : 0 Bad blocks : 1 BBT blocks : 0 Bad block at 0x e0000: checking... Finished pass 1 successfully [root@localhost ~]# nandtest /dev/mtd7 ECC corrections: 0 ECC failures : 0 Bad blocks : 1 BBT blocks : 0 Bad block at 0x08f f860000: checking... Finished pass 1 successfully cafe.naver.com/embeddedcrazyboys CRZ Technology 29

30 11. RTC Test 시간서버로부터시간을할당받기위해서, 우선인터넷이연결합니다. ~]# udhcpc i eth0 아래와같이시험을수행합니다. [root@localhost ~]# rdate -s time.bora.net [root@localhost ~]# date Fri Jun 26 15:39:30 KST 2015 [root@localhost ~]# hwclock -u --systohc [root@localhost ~]# date Fri Jun 26 15:39:39 KST 2015 [root@localhost ~]# hwclock Fri Jun 26 06:39: seconds rdate 를이용해서정확한 system 시간을설정합니다. rdate 명령을수행하기전에인터넷이되어야합니다. hwclock 설정시에 -u 옵션을꼭설정해야합니다. 이는 UTC 시간으로설정하는것입니다. 이후보드의전원을완전히제거하고다시부팅하였을때이전에설정한시간으로다시설정되어있 는것을확인할수있습니다. 30

Mango220 Android How to compile and Transfer image to Target

Mango220 Android How to compile and Transfer image to Target http://www.mangoboard.com/ http://cafe.naver.com/embeddedcrazyboys Crazy Embedded Laboratory www.mangoboard.com cafe.naver.com/embeddedcrazyboys