omapl138 eval won't play sound

If I wait long enough I get:

 aplay: pcm_write:1603: write error: Input/output error

This happens after a couple of minutes. Any idea what I am doing wrong?

Hi,

Verify whether you are able to see audio device while booting the Kernel. If audio device is identified, you should see the below:

ALSA device list:
  #0: DA850/OMAP-L138 EVM

Also, try to play the wave file without using the -V option and see whether the behavior changes.

Regards, Sudhakar

Yes I see the also device. I tried it without the -V with the same results. Actually the -V verifies that it sees the alsa device and displays parameters from it.

Dennis

I tried without the -v and the -V. with the same results.

Dennis

Are you using the pre built kernel out of the box from the SDK or are you using a custom built kernel? I don't believe there are any known issues with aplay using the out of the box kernel, my first thought would be that something was left out or messed up in a custom kernel build, so it may be worth trying another kernel image.

I tried the brebuild ternel and a custom one. Same problem with both

One more thought on this, I usually use just the base board, without the extra application board attached, it may be worth trying without the application board if you have not tried that already.

Hi Dennis,

DVSDK 04_02_00_06 is using PSP Release version 03.20.00.13. Today I took the pre-built uImage from this PSP version and tested audio on OMAP-L138 and I did not face any issues. I used the same command what you are using (aplay -V stereo -v test.wav). Can you try this with a different EVM? Also please post the complete Kernel booting log.

Regards, Sudhakar

What do you mean EVM? do you mean with a different board?

Here is the console from bootup:

Booting with TI UBL
Device OPP (300MHz, 1.2V)

U-Boot 2009.11 (May 03 2010 - 15:38:40)

I2C:   ready
DRAM:  64 MB
In:    serial
Out:   serial
Err:   serial
ARM Clock : 300000000 Hz
DDR Clock : 132000000 Hz
Net:   Ethernet PHY: GENERIC @ 0x00

Hit any key to stop autoboot:  0
Using  device
TFTP from server 192.168.249.18; our IP address is 192.168.249.243
Filename 'uImage'.
Load address: 0xc0700000
Loading: #################################################################
         #################################################################
         #################################################################
         #################################################################
         #################################################################
         #################################################################
         ######################################
done
Bytes transferred = 2187060 (215f34 hex)
## Booting kernel from Legacy Image at c0700000 ...
   Image Name:   Arago/2.6.32+2.6.33-rc4-psp03.20
   Image Type:   ARM Linux Kernel Image (uncompressed)
   Data Size:    2186996 Bytes =  2.1 MB
   Load Address: c0008000
   Entry Point:  c0008000
   Verifying Checksum ... OK
   Loading Kernel Image ... OK
OK

Starting kernel ...

Uncompressing Linux... done, booting the kernel.
Linux version 2.6.33-rc4 (sdk@nemo) (gcc version 4.3.3 (Sourcery G++ Lite 2009q1-203) ) #1 PREEMPT Thu Mar 24 23:27:57 CDT 2011
CPU: ARM926EJ-S [41069265] revision 5 (ARMv5TEJ), cr=00053177
CPU: VIVT data cache, VIVT instruction cache
Machine: DaVinci DA850/OMAP-L138/AM18xx EVM
Memory policy: ECC disabled, Data cache writeback
DaVinci da850/omap-l138 variant 0x0
Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 24320
Kernel command line: console=ttyS2,115200n8 root=/dev/nfs nfsroot=192.168.249.18:/srv/omap rw ip=dhcp mem=32M@0xc0000000 mem=64M@0xc4000000
PID hash table entries: 512 (order: -1, 2048 bytes)
Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
Memory: 32MB 64MB = 96MB total
Memory: 92704KB available (4164K code, 320K data, 148K init, 0K highmem)
SLUB: Genslabs=11, HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
Hierarchical RCU implementation.
NR_IRQS:245
Console: colour dummy device 80x30
Calibrating delay loop... 149.50 BogoMIPS (lpj=747520)
Mount-cache hash table entries: 512
CPU: Testing write buffer coherency: ok
DaVinci: 144 gpio irqs
regulator: core version 0.5
NET: Registered protocol family 16
da850_evm_init: mmcsd2 registration failed: -1bio: create slab <bio-0> at 0
SCSI subsystem initialized
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
regulator: VDCDC1: 3200 <--> 3300 mV at 3300 mV
regulator: VDCDC2: 1750 <--> 3300 mV at 3300 mV
regulator: VDCDC3: 950 <--> 1375 mV at 1200 mV
regulator: LDO1: 1800 mV
regulator: LDO2: 1150 <--> 1300 mV at 1200 mV
pca953x 1-0020: failed reading register
i2c-gpio i2c-gpio.1: using pins 20 (SDA) and 21 (SCL)
Bluetooth: Core ver 2.15
NET: Registered protocol family 31
Bluetooth: HCI device and connection manager initialized
Bluetooth: HCI socket layer initialized
Switching to clocksource timer0_1
musb_hdrc: version 6.0, cppi4.1-dma, host, debug=0
Waiting for USB PHY clock good...
musb_hdrc: USB Host mode controller at fee00000 using DMA, IRQ 58
musb_hdrc musb_hdrc: MUSB HDRC host driver
musb_hdrc musb_hdrc: new USB bus registered, assigned bus number 1
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 1 port detected
NET: Registered protocol family 2
IP route cache hash table entries: 1024 (order: 0, 4096 bytes)
TCP established hash table entries: 4096 (order: 3, 32768 bytes)
TCP bind hash table entries: 4096 (order: 2, 16384 bytes)
TCP: Hash tables configured (established 4096 bind 4096)
TCP reno registered
UDP hash table entries: 256 (order: 0, 4096 bytes)
UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
NET: Registered protocol family 1
RPC: Registered udp transport module.
RPC: Registered tcp transport module.
RPC: Registered tcp NFSv4.1 backchannel transport module.
EMAC: MII PHY configured, RMII PHY will not be functional
JFFS2 version 2.2. (NAND) © 2001-2006 Red Hat, Inc.
msgmni has been set to 181
io scheduler noop registered (default)
da8xx_lcdc da8xx_lcdc.0: GLCD: Found Sharp_LK043T1DG01 panel
Console: switching to colour frame buffer device 60x34
Serial: 8250/16550 driver, 3 ports, IRQ sharing disabled
serial8250.0: ttyS0 at MMIO 0x1c42000 (irq = 25) is a AR7
serial8250.0: ttyS1 at MMIO 0x1d0c000 (irq = 53) is a AR7
serial8250.0: ttyS2 at MMIO 0x1d0d000 (irq = 61) is a AR7
console [ttyS2] enabled
brd: module loaded
ahci ahci: forcing PORTS_IMPL to 0x1
ahci ahci: AHCI 0001.0100 32 slots 1 ports 3 Gbps 0x1 impl SATA mode
ahci ahci: flags: ncq sntf pm led clo only pmp pio slum part ccc
scsi0 : ahci
ata1: SATA max UDMA/133 irq 67
spi_davinci spi_davinci.1: DaVinci SPI driver in EDMA mode
Using RX channel = 18 , TX channel = 19 and event queue = 1
m25p80 spi1.0: m25p64 (8192 Kbytes)
Creating 4 MTD partitions on "m25p80":
0x000000000000-0x000000040000 : "U-Boot"
0x000000040000-0x000000050000 : "U-Boot Environment"
0x000000050000-0x0000007f0000 : "Linux"
0x0000007f0000-0x000000800000 : "MAC Address"
Read MAC addr from EEPROM: ff:ff:ff:ff:ff:ff
spi_davinci spi_davinci.1: Controller at 0xfef0e000
console [netcon0] enabled
netconsole: network logging started
ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
ohci ohci.0: DA8xx OHCI
ohci ohci.0: new USB bus registered, assigned bus number 2
ohci ohci.0: irq 59, io mem 0x01e25000
hub 2-0:1.0: USB hub found
hub 2-0:1.0: 1 port detected
Initializing USB Mass Storage driver...
usbcore: registered new interface driver usb-storage
USB Mass Storage support registered.
input: TPS6507x Touchscreen as /devices/platform/i2c-gpio.1/i2c-1/1-0048/input/input0
omap_rtc omap_rtc: rtc core: registered omap_rtc as rtc0
omap_rtc: RTC power up reset detected
i2c /dev entries driver
Linux video capture interface: v2.00
usbcore: registered new interface driver uvcvideo
USB Video Class driver (v0.1.0)
watchdog watchdog: heartbeat 60 sec
Bluetooth: HCI UART driver ver 2.2
Bluetooth: HCI H4 protocol initialized
Bluetooth: HCI BCSP protocol initialized
Bluetooth: HCILL protocol initialized
cpuidle: using governor ladder
cpuidle: using governor menu
davinci_mmc davinci_mmc.0: Using DMA, 4-bit mode
davinci_mmc davinci_mmc.1: Using DMA, 4-bit mode
usbcore: registered new interface driver usbhid
usbhid: USB HID core driver
Advanced Linux Sound Architecture Driver Version 1.0.21.
usbcore: registered new interface driver snd-usb-audio
No device for DAI tlv320aic3x
asoc: tlv320aic3x <-> davinci-i2s mapping ok
ALSA device list:
  #0: DA850/OMAP-L138 EVM (tlv320aic3x)
TCP cubic registered
NET: Registered protocol family 17
Bluetooth: L2CAP ver 2.14
Bluetooth: L2CAP socket layer initialized
Bluetooth: SCO (Voice Link) ver 0.6
Bluetooth: SCO socket layer initialized
ata1: SATA link down (SStatus 0 SControl 300)
Bluetooth: RFCOMM TTY layer initialized
Bluetooth: RFCOMM socket layer initialized
Bluetooth: RFCOMM ver 1.11
Bluetooth: BNEP (Ethernet Emulation) ver 1.3
Bluetooth: BNEP filters: protocol multicast
Bluetooth: HIDP (Human Interface Emulation) ver 1.2
Clocks: disable unused emac
Clocks: disable unused aemif
Clocks: disable unused spi0
regulator_init_complete: incomplete constraints, leaving LDO2 on
regulator_init_complete: incomplete constraints, leaving LDO1 on
regulator_init_complete: incomplete constraints, leaving VDCDC3 on
regulator_init_complete: incomplete constraints, leaving VDCDC2 on
regulator_init_complete: incomplete constraints, leaving VDCDC1 on
davinci_emac_probe: using random MAC addr: 0a:75:02:76:46:95
emac-mii: probed
omap_rtc omap_rtc: setting system clock to 2000-01-01 00:00:00 UTC (946684800)
eth0: attached PHY driver [SMSC LAN8710/LAN8720] (mii_bus:phy_addr=1:00, id=7c0f1)
Sending DHCP requests .
PHY: 1:00 - Link is Up - 100/Full
., OK
IP-Config: Got DHCP answer from 0.0.0.0, my address is 192.168.249.16
IP-Config: Complete:
     device=eth0, addr=192.168.249.16, mask=255.255.255.0, gw=192.168.249.1,
     host=192.168.249.16, domain=psaudio.com, nis-domain=(none),
     bootserver=0.0.0.0, rootserver=192.168.249.18, rootpath=
Looking up port of RPC 100003/2 on 192.168.249.18
Looking up port of RPC 100005/1 on 192.168.249.18
VFS: Mounted root (nfs filesystem) on device 0:13.
Freeing init memory: 148K
INIT: version 2.86 booting
Please wait: booting...
Starting udev
udev: starting version 141
Remounting root file system...
Caching udev devnodes
Populating dev cachemv: cannot rename '/tmp/devices': No such file or directory
NET: Registered protocol family 10
logger: mount: mount point /proc/bus/usb does not exist
ALSA: Restoring mixer settings...
NOT configuring network interfaces: / is an NFS mount
Mon Mar 28 15:28:00 UTC 2011
INIT: Entering runlevel: 5
Starting system message bus: dbus.
Starting Dropbear SSH server: dropbear.
Starting telnet daemon.
Starting syslogd/klogd: done
Starting thttpd.
CMEMK module: built on May 13 2011 at 09:04:40
  Reference Linux version 2.6.33
  File /usr/local/dvsdk/linuxutils_2_26_01_02/packages/ti/sdo/linuxutils/cmem/src/module/cmemk.c
CMEM Range Overlaps Kernel Physical - allowing overlap
CMEM phys_start (0xc2000000) overlaps kernel (0xc0000000 -> 0xc6000000)
allocated heap buffer 0xc9000000 of size 0x1200000
heap fallback enabled - will try heap if pool buffer is not available
cmemk initialized
DSPLINK Module (1.65.00.02) created on Date: Jun  3 2011 Time: 09:31:20

 _____                    _____           _         _
|  _  |___ ___ ___ ___   |  _  |___ ___  |_|___ ___| |_
|     |  _| .'| . | . |  |   __|  _| . | | | -_|  _|  _|
|__|__|_| |__,|_  |___|  |__|  |_| |___|_| |___|___|_|
              |___|                    |___|

Arago Project http://arago-project.org arago ttyS2

Arago 2011.02 arago ttyS2

arago login:

Hi Dennis,

EVM means Evaluation module. Yes, I wanted you to test it on a different board.

From the booting log I see that you have also enabled Bluetooth. As far as I remember, on OMAP-L138 Bluetooth uses UART1 interface it needs UART flow control to be enabled. When UART flow control is enabled McASP will not work. Can you let me know the settings of S7 switch on the OMAP-L138 board? For flow control to work, it is advised that S7-2 is ON. You can configure S7-2 switch to off and see whether audio works.

Regards, Sudhakar

Currently I do not have another board, but I might on wednesday.

Thank you turning S7-2 to the off position fixed my problem. I completly missed that in the documentation. Thanks gain.