Hi all
I want work interface spi on beaglebone ubuntu 14.04.03
I edit file uEnv.txt below:
#Docs: http://elinux.org/Beagleboard:U-boot_partitioning_layout_3.0
uname_r=4.1.13-ti-r36
#uuid=
#dtb=
##BeagleBone Black/Green dtb's for v4.1.x (BeagleBone White just works..)
##BeagleBone Black: HDMI (Audio/Video) disabled:
dtb=am335x-boneblack-emmc-overlay.dtb
##BeagleBone Black: eMMC disabled:
#dtb=am335x-boneblack-hdmi-overlay.dtb
##BeagleBone Black: HDMI Audio/eMMC disabled:
#dtb=am335x-boneblack-nhdmi-overlay.dtb
##BeagleBone Black: HDMI (Audio/Video)/eMMC disabled:
dtb=am335x-boneblack-overlay.dtb
##BeagleBone Black: wl1835
#dtb=am335x-boneblack-wl1835mod.dtb##BeagleBone Black: replicape
#dtb=am335x-boneblack-replicape.dtb
##BeagleBone Green: eMMC disabled
#dtb=am335x-bonegreen-overlay.dtb
cmdline=coherent_pool=1M quiet cape_universal=enable
#In the event of edid real failures, uncomment this next line:
#cmdline=coherent_pool=1M quiet cape_universal=enable
video=HDMI-A-1:1024x768@60e
##Example v3.8.x
#cape_disable=capemgr.disable_partno=
#cape_enable=capemgr.enable_partno=
##Example v4.1.x
#cape_disable=bone_capemgr.disable_partno=
#cape_enable=bone_capemgr.enable_partno=
##Example v3.8.x
#cape_disable=capemgr.disable_partno=
#cape_enable=capemgr.enable_partno=
##Example v4.1.x
#cape_disable=bone_capemgr.disable_partno=
#cape_enable=bone_capemgr.enable_partno=
cape_disable=bone_capemgr.disable_partno=BB-SPIDEV0,BB-BONELT-HDMI,BB-BONELT-HDMIN,BB-BONE-EMMC-2G
cape_enable=bone_capemgr.enable_partno=BB-I2C1,BB-SPIDEV1
##enable Generic eMMC Flasher:
##make sure, these tools are installed: dosfstools rsync
#cmdline=init=/opt/scripts/tools/eMMC/init-eMMC-flasher-v3.sh
closse and reboot
That
*cat /sys/devices/platform/bone_capemgr/slots*
0: PF---- -1
1: PF---- -1
2: PF---- -1
3: PF---- -1
4: P-O-L- 0 Override Board Name,00A0,Override Manuf,BB-SPIDEV1
but that run code
BlackLib::BlackSPI mySpi4(BlackLib::SPI1_0, 8, BlackLib::SpiDefault,
2400000);
bool isOpened4 = mySpi4.open( BlackLib::ReadWrite | BlackLib::NonBlock);
if( !isOpened4 )
{
std::cout << "SPI DEVICE CAN\'T OPEN " << std::endl;
cout<<" value 4: " <<isOpened3;
cout<<" \r\n "<<endl;
}
else
{
cout<<" OPEN spi 4: " <<endl;
cout<<" value open spi:" <<isOpened2;
cout<<" \r\n "<<endl;
}
BlackLib::BlackI2C myI2c(BlackLib::I2C_1, 0x3b);
bool is = myI2c.open( BlackLib::ReadWrite | BlackLib::NonBlock );
if( !is )
{
std::cout << "I2C DEVICE CAN\'T OPEN.;" << std::endl;
}
else
{
cout << " OPEN i2c:" << std::endl;
cout << " value i2c:" << is;
cout<<" \r\n "<<endl;
}
I2C OPEN
SPI DEVICE CAN\'T OPEN
please help
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