MitySOM-335X Development Kit Errata¶

The following Errata applies for the following serial numbers:

120765-120782, 120805, 120870, and 120873

All Items were shipped before May 1 2012

Effective: 4/16/2012

These issues are currently being investigated by Critical Link Engineering. For updates please visit http://support.criticallink.com/redmine/projects/am335x-devkit.

• There is an error in the environment setup script on early (before 4/20/2012) versions of the MitySOM-335X development kit SDK virtual machine configuration. The TI SDK was not installed correctly and the SDK_PATH is set incorrectly. This will cause issues trying to build with the toolchain. To correct this issue, comment out line 10 in /usr/local/ti-sdk-am335x-evm-05.03.02.00/linux-devkit/environment-setup like this.
  

  export SDK_PATH=/export/space/ti-sdk-am335x-evm-05.03.02.00/linux-devkit
  

  
  Note: you will need to have root privilege to do this. The sudo command should be used to edit the file. If you are using vi, the command is
  

  sudo vi /usr/local/ti-sdk-am335x-evm-05.03.02.00/linux-devkit/environment-setup.

• Some boards have intermittent issues communicating with U101 [ADS1000A Analog to Digital Converter]. The error is
  

  tcI2CDevice::Open:ioctl:: Device or resource busy
  additionally, i2cdump reports
  root@mityarm-335x:~# i2cdump -y 1 0x48 w
  Error: Could not set address to 0x48: Device or resource busy
  

  
  Other boards seem to be ok.

• Once you remove a device from the USB "A" port [J502], devices are no longer detected upon insertion. USB OTG port [J500] does not exhibit this issue. This is a known issue with the TI supplied USB driver.
  [ See the TI release notes for the PSP http://processors.wiki.ti.com/index.php/AM335x-PSP_04.06.00.03_Release_Notes ]
  See http://processors.wiki.ti.com/index.php/UsbgeneralpageLinux-v3p1#Device_removal_from_and_reconnect_to_MUSB_OTG_port for the work around

• The analog input circuit s (via J900) should not be used at this time.

• The video decode demos do not run because of a hostname change. The tar file at http://support.criticallink.com/redmine/attachments/download/1509/am335x_video_demo_patch.tgz
  contains corrected scripts. cd to / and tar xvzf the file to update the scripts in /usr/bin
  

  -rwxr-xr-x root/root       635 2012-04-25 07:47 usr/bin/runAACDec.sh
  -rwxr-xr-x root/root      1041 2012-04-25 07:47 usr/bin/runH264Dec.sh
  -rwxr-xr-x root/root       944 2012-04-25 07:47 usr/bin/runMpeg2Dec.sh
  -rwxr-xr-x root/root      1219 2012-04-25 07:47 usr/bin/runMpeg4AacDec.sh
  -rwxr-xr-x root/root       940 2012-04-25 07:47 usr/bin/runMpeg4Dec.sh
  -rwxr-xr-x root/root      1865 2012-04-25 07:47 usr/bin/runOpLimitedReport.sh
  -rwxr-xr-x root/root      1807 2012-04-25 07:47 usr/bin/runOpLongReport.sh
  -rwxr-xr-x root/root      1802 2012-04-25 07:47 usr/bin/runOpSimpleReport.sh
  

• The Graphics development kit (v 4.05.00.03 is included with the VM image, but not installed). To install it you will need to do the following:
  - sudo chmod +x /usr/local/ti-sdk-am335x-evm-05.03.02.00/Graphics_SDK_setuplinux_4_05_00_03.bin
  - /usr/local/ti-sdk-am335x-evm-05.03.02.00/Graphics_SDK_setuplinux_4_05_00_03.bin

• The RS-232 expansion card revision 1 (80-000450RI-1) DB-9 pin 5 ground is not connected. This may affect users where the far end of the serial link is on a different ground reference. Most users should not notice a problem. As a workaround, a solder bridge can be made from pin 5 to the surrounding ground pour on the circuit board.