Release Notes for the QNX Neutrino 6.4.1 BSP for Freescale i.MX51 EVK 1.0.0#

System requirements#

• QNX Neutrino RTOS 6.4.1

Host development system

• QNX Momentics 6.4.1
• Terminal emulation program (Qtalk, Momentics IDE Terminal, tip, HyperTerminal, etc.)
• RS-232 serial port or a USB-to-serial adapter, and a straight-through serial cable
• Ethernet link

System Layout#

Memory layout

The interrupt vector table can be found in the buildfile located at src/hardware/startup/boards/mx51evk/build

Getting Started#

Starting Neutrino#

Step 1: Build the BSP
You can build a BSP OS image from the source code. For instructions about building a BSP OS image, please refer to the chapter Working with a BSP in the Building Embedded Systems manual.

Copy or transfer the IFS image into your tftp server's directory.

• When compiling using the command line, the ifs image is in the images directory.
• When compiling using the IDE, the IFS image is by default at /Workspace_root_dir/bsp-freescale-mx51evk-src/images.

Step 2: Connect your hardware

1. Set up the i.mx51 EVK board in boot mode. Refer to the manual for the correct default jumper settings to use the CPU board.
2. Connect one end of the serial cable to the P5A1 (UART) serial port on the CPU board.
3. Connect the other end of the serial cable to the first available serial port of your host machine (e.g. ser1 on a Neutrino host).
4. Connect one end of RJ-45 Ethernet cable to the FEC Ethernet RJ45 Connector (P3 on the CPU board).
5. Connect the other end of the Ethernet cable to the Ethernet network where a TFTP server (which you'll use to transfer the boot image) exists.

On your host machine, start your favorite terminal program with these settings:

• Baud: 115200
• Bits: 8
• Stop bits: 1
• Parity: none

Then, apply power to the target. You should see output similar to the following:

++Booting from SDHC0
Bus Width:    1
Card initialization successful!
Actual capacity of the card is 3866624KB
Redboot uses 2097152KB
... Read from 0x1fee0000-0x1ff00000 at 0x00040000: .
... Read from 0x1fed3000-0x1fed4000 at 0x0005f000: .
PMIC ID: 0x000041d0 [Rev: 2.0]
Initializing SPI-NOR flash...
FEC LAN8700 PHY: ID=7c0c4
FEC: [ HALF_DUPLEX ] [ disconnected ] [ 10M bps ]:
Ethernet mxc_fec: MAC address 00:04:9f:00:ea:c2
IP: 172.18.74.117/255.255.255.0, Gateway: 172.18.74.1
Default server: 172.18.80.127

Reset reason: Power-on reset
fis/fconfig from MMC
Boot switch: INTERNAL
        EXPANSION: SD/MMC-0

RedBoot(tm) bootstrap and debug environment [ROMRAM]
Non-certified release, version FSL 200938 - built 11:47:45, Sep 15 2009

Platform: MX51 Babbage (Freescale i.MX51 based) PASS 3.0 [x32 DDR]. Board Rev 2.
5
Copyright (C) 2000, 2001, 2002, 2003, 2004 Red Hat, Inc.
Copyright (C) 2003, 2004, 2005, 2006 eCosCentric Limited

RAM: 0x00000000-0x1ff00000, [0x000953e0-0x1fed1000] available
FLASH: 0x00000000 - 0x80000000, 16384 blocks of 0x00020000 bytes each.
RedBoot>

Step 3: Setup the environment

At the RedBoot prompt, issue the fconfig command to change the current environment.

The current configurations will be displayed; change the configuration if you want.

Run script at boot: false
Use BOOTP for network configuration: false
Gateway IP address: 192.168.1.1
Local IP address: 192.168.1.202
Local IP address mask: 255.255.255.0
Default server IP address: 192.168.1.15
Board specifics: 0
Console baud rate: 115200
Set eth0 network hardware address [MAC]: false
Set FEC network hardware address [MAC]: false
GDB connection port: 9000
Force console for special debug messages: false
Network debug at boot time: false
Default network device: mxc_fec

Step 4: Boot the IFS image

Once the above setup is complete, reset the board and you can run the load command at the RedBoot prompt to download the image: load -r -b 0x100000 ifs-mx51evk.raw; go 0x100000

Replace 192.168.1.15 with the IP address of your TFTP server and ifs-mx51evk.raw with the path of the image on the TFTP server.

RedBoot will display the follow message and start downloading the boot image:

Using default protocol (TFTP)

If the image is successfully loaded RedBoot will display:

Raw file loaded 0x00100000-0x00389fb7, assumed entry at 0x00100000

You also should see QNX Neutrino boot, followed by the welcome message on your terminal screen:

CPU0: L1 Icache: 512x64
CPU0: L1 Dcache: 512x64 WB
CPU0: L2 Dcache: 4096x64 WB
CPU0: VFP 410330c2
CPU0: 412fc081: Cortex A8 rev 1 800MHz

System page at phys:90011000 user:fc404000 kern:fc404000
Starting next program at vfe043df0
cpu_startnext: cpu0 -> fe043df0
VFPv3: fpsid=410330c2
coproc_attach(10): replacing fe0659e0 with fe0651a0
coproc_attach(11): replacing fe0659e0 with fe0651a0
Welcome to QNX Neutrino 6.4.1 on the i.MX51 EVK (ARM Cortex-A8 core) Board
Starting on-board ethernet with TCP/IP stack...
Starting I2C1 driver (/dev/i2c0)...
Starting I2C2 driver (/dev/i2c1)...
Starting SD1 memory card driver...
Starting SD2 memory card driver...
Starting watchdog
Starting SPI driver for CSPI (dev/spi0)...
Starting Enhanced SPI driver for ECSPI1(dev/spi1) ...
Starting Enhanced SPI driver for ECSPI2(dev/spi2) ...
Starting SSI Audio driver for SGTL5000...
"Mic In",0 - Capture Group
        Capabilities -  Volume Jointly-Capture Exclusive-Capture
        Channels - Front-Left Front-Right
        Volume Range - minimum=0, maximum=3
        Channel 0 Front-Left   -   0 (  0%)  Capture
        Channel 1 Front-Right  -   0 (  0%)  Capture
Starting USB Host driver...
Starting Graphics driver...
# Path=0 - FREESCALE MX35 e
 target=0 lun=0     Direct-Access(0) - SD:2 SA04G Rev: 0.4
Path=0 - FREESCALE MX35 e
 target=0 lun=0     Direct-Access(0) - SD:2 SD02G Rev: 4.1
#

You can test the OS simply by executing any shell builtin command or any command residing within the OS image (e.g. ls).

Driver Command Summary#

The following table summarizes the commands to launch the various drivers.

Some of the drivers are commented out in the default buildfile. To use the drivers in the target hardware, you'll need to uncomment them in your buildfile, rebuild the image, and load the image into the board.

Startup, Watchdog, Configurable SPI, Enhanced Configurable SPI and Ethernet have additional details:

Startup#

startup-mx51evk [startup-options]

Some modules aren't enabled after boot up, so you need to use command line options to startup to enable them. These options must be passed before any other startup options.

Ethernet#

io-pkt-v4-hc -d mx51 mac=xxxxxxxxxxxx

MAC address labelled on i.mx51 evk board must be provided with "mac" command line option.

Audio#

io-audio -d mx-mx51evk ssibase=0x83FCC000,tevt=29,tchn=1,revt=28,rchn=2,rate=48000,mixer=i2cdev=1:adr0cs=0:mclk=26000000

mix_ctl group "Mic In" capture=on

Known Issues for This BSP#

• The audio driver deva-ctrl-mx-mx51evk.so doesn't support Syncronous data playback ability since the DMA library doesn't have position information. (Ref# 75488)
• The i.MX35 (ARM1136) processor doesn't support unaligned accesses in hardware. If an application (e.g. pwmopts) tries to access data that isn't aligned on a 32-bit boundary, a bus error will occur. To avoid this memory fault, you can enable the software emulation of unaligned accesses by starting procnto with the -ae option. (Ref# 71252)