Hi,I am new to raspberry pi compute module.
I was working with the cm3 lite before this with a full desktop version installed and hence had no problems with the camera modules.
Since my cm3 lite got short i have to use the cm3 with flash memory which has the jessie lite version installed.
I did the procedure in the rpi in order to support dual cameras and hopefully succeeded with the blob files. I have connected the gpio pins for the camera setup as given in the tutorial
https://www.raspberrypi.org/documentation/hardware/computemodule/cmio-camera.md
I reboot the pi and i run the command vcgencmd version which outputs
Nov 3 2017 17:05:40
Copyright (c) 2012 Broadcom
version 1bcf9152e3b2ab5c67dcb9c7c1f6d9256d9a6f38 (clean) (release)
then, i ran vcgencmd get_camera which outputs
supported=2, detected=0
shows that the blob files are right.
To check the gpio pins i ran sudo raspi-gpio get and found that the raspi-gpio package was not installed as I was using the lite version. Then I installed it using sudo apt-install raspi-gpio
And now, sudo raspi-gpio get outputs
[code]BANK0 (GPIO 0 to 27):
GPIO 00: level=0 fsel=0 alt= func=INPUT
GPIO 01: level=0 fsel=0 alt= func=INPUT
GPIO 02: level=0 fsel=1 alt= func=OUTPUT
GPIO 03: level=0 fsel=1 alt= func=OUTPUT
GPIO 04: level=0 fsel=0 alt= func=INPUT
GPIO 05: level=0 fsel=0 alt= func=INPUT
GPIO 06: level=0 fsel=0 alt= func=INPUT
GPIO 07: level=0 fsel=0 alt= func=INPUT
GPIO 08: level=0 fsel=0 alt= func=INPUT
GPIO 09: level=0 fsel=0 alt= func=INPUT
GPIO 10: level=0 fsel=0 alt= func=INPUT
GPIO 11: level=0 fsel=0 alt= func=INPUT
GPIO 12: level=0 fsel=0 alt= func=INPUT
GPIO 13: level=0 fsel=0 alt= func=INPUT
GPIO 14: level=0 fsel=4 alt=0 func=TXD0
GPIO 15: level=0 fsel=4 alt=0 func=RXD0
GPIO 16: level=0 fsel=0 alt= func=INPUT
GPIO 17: level=0 fsel=0 alt= func=INPUT
GPIO 18: level=0 fsel=0 alt= func=INPUT
GPIO 19: level=0 fsel=0 alt= func=INPUT
GPIO 20: level=0 fsel=0 alt= func=INPUT
GPIO 21: level=0 fsel=0 alt= func=INPUT
GPIO 22: level=0 fsel=0 alt= func=INPUT
GPIO 23: level=0 fsel=0 alt= func=INPUT
GPIO 24: level=0 fsel=0 alt= func=INPUT
GPIO 25: level=0 fsel=0 alt= func=INPUT
GPIO 26: level=0 fsel=0 alt= func=INPUT
GPIO 27: level=0 fsel=0 alt= func=INPUT
BANK1 (GPIO 28 to 45):
GPIO 28: level=0 fsel=4 alt=0 func=SDA0
GPIO 29: level=0 fsel=4 alt=0 func=SCL0
GPIO 30: level=0 fsel=1 alt= func=OUTPUT
GPIO 31: level=0 fsel=1 alt= func=OUTPUT
GPIO 32: level=0 fsel=0 alt= func=INPUT
GPIO 33: level=0 fsel=0 alt= func=INPUT
GPIO 34: level=0 fsel=0 alt= func=INPUT
GPIO 35: level=0 fsel=0 alt= func=INPUT
GPIO 36: level=0 fsel=0 alt= func=INPUT
GPIO 37: level=0 fsel=0 alt= func=INPUT
GPIO 38: level=0 fsel=0 alt= func=INPUT
GPIO 39: level=0 fsel=0 alt= func=INPUT
GPIO 40: level=0 fsel=0 alt= func=INPUT
GPIO 41: level=0 fsel=0 alt= func=INPUT
GPIO 42: level=0 fsel=0 alt= func=INPUT
GPIO 43: level=0 fsel=0 alt= func=INPUT
GPIO 44: level=0 fsel=0 alt= func=INPUT
GPIO 45: level=0 fsel=0 alt= func=INPUT
BANK2 (GPIO 46 to 53):
GPIO 46: level=1 fsel=0 alt= func=INPUT
GPIO 47: level=1 fsel=0 alt= func=INPUT
GPIO 48: level=0 fsel=4 alt=0 func=SD0_CLK
GPIO 49: level=1 fsel=4 alt=0 func=SD0_CMD
GPIO 50: level=1 fsel=4 alt=0 func=SD0_DAT0
GPIO 51: level=1 fsel=4 alt=0 func=SD0_DAT1
GPIO 52: level=1 fsel=4 alt=0 func=SD0_DAT2
GPIO 53: level=1 fsel=4 alt=0 func=SD0_DAT3[/code]
and the my dt-blob-dualcam.dts file consists of the following,
dts-v1/;
/ {
videocore {
pins_cm {
pin_config {
pin@default {
polarity = "active_high";
termination = "pull_down";
startup_state = "inactive";
function = "input";
}; // pin
// BANK 0 - USER GPIO //
pin@p0 { function = "input"; termination = "pull_up"; }; // GPU WILL USE THIS PIN FOR CAMERA 0 I2C0 SDA
pin@p1 { function = "input"; termination = "pull_up"; }; // GPU WILL USE THIS PIN FOR CAMERA 0 I2C0 SCL
pin@p2 { function = "output"; termination = "no_pulling"; }; // GPU WILL USE THIS PIN FOR CAMERA 0 LED
pin@p3 { function = "output"; termination = "no_pulling"; }; // GPU WILL USE THIS PIN FOR CAMERA 0 SHUTDOWN
pin@p4 { function = "input"; termination = "pull_up"; }; // DEFAULT STATE
pin@p5 { function = "input"; termination = "pull_up"; }; // DEFAULT STATE
pin@p6 { function = "input"; termination = "pull_up"; }; // DEFAULT STATE
pin@p7 { function = "input"; termination = "pull_up"; }; // DEFAULT STATE
pin@p8 { function = "input"; termination = "pull_up"; }; // DEFAULT STATE
pin@p9 { function = "input"; termination = "pull_down"; }; // DEFAULT STATE
pin@p10 { function = "input"; termination = "pull_down"; }; // DEFAULT STATE
pin@p11 { function = "input"; termination = "pull_down"; }; // DEFAULT STATE
pin@p12 { function = "input"; termination = "pull_down"; }; // DEFAULT STATE
pin@p13 { function = "input"; termination = "pull_down"; }; // DEFAULT STATE
///////////////////////////////////////////
// TO ENABLE UART0 UNCOMMENT THESE 2 LINES:
// pin@p14 { function = "uart0"; termination = "no_pulling"; }; // UART0 TX
// pin@p15 { function = "uart0"; termination = "pull_up"; }; // UART0 RX
// AND COMMENT OUT/REMOVE THESE 2 LINES:
pin@p14 { function = "input"; termination = "pull_down"; }; // DEFAULT STATE
pin@p15 { function = "input"; termination = "pull_down"; }; // DEFAULT STATE
///////////////////////////////////////////
pin@p16 { function = "input"; termination = "pull_down"; }; // DEFAULT STATE
pin@p17 { function = "input"; termination = "pull_down"; }; // DEFAULT STATE
pin@p18 { function = "input"; termination = "pull_down"; }; // DEFAULT STATE
pin@p19 { function = "input"; termination = "pull_down"; }; // DEFAULT STATE
pin@p20 { function = "input"; termination = "pull_down"; }; // DEFAULT STATE
pin@p21 { function = "input"; termination = "pull_down"; }; // DEFAULT STATE
pin@p22 { function = "input"; termination = "pull_down"; }; // DEFAULT STATE
pin@p23 { function = "input"; termination = "pull_down"; }; // DEFAULT STATE
pin@p24 { function = "input"; termination = "pull_down"; }; // DEFAULT STATE
pin@p25 { function = "input"; termination = "pull_down"; }; // DEFAULT STATE
pin@p26 { function = "input"; termination = "pull_down"; }; // DEFAULT STATE
pin@p27 { function = "input"; termination = "pull_down"; }; // DEFAULT STATE
// BANK 1 - USER GPIO//
pin@p28 { function = "input"; termination = "pull_up"; }; // GPU WILL USE THIS PIN FOR CAMERA 1 I2C0 SDA
pin@p29 { function = "input"; termination = "pull_up"; }; // GPU WILL USE THIS PIN FOR CAMERA 1 I2C0 SCL
pin@p30 { function = "output"; termination = "no_pulling"; }; // GPU WILL USE THIS PIN FOR CAMERA 1 LED
pin@p31 { function = "output"; termination = "no_pulling"; }; // GPU WILL USE THIS PIN FOR CAMERA 1 SHUTDOWN
pin@p32 { function = "input"; termination = "pull_down"; }; // DEFAULT STATE
pin@p33 { function = "input"; termination = "pull_down"; }; // DEFAULT STATE
pin@p34 { function = "input"; termination = "pull_up"; }; // DEFAULT STATE
pin@p35 { function = "input"; termination = "pull_up"; }; // DEFAULT STATE
pin@p36 { function = "input"; termination = "pull_up"; }; // DEFAULT STATE
pin@p37 { function = "input"; termination = "pull_down"; }; // DEFAULT STATE
pin@p38 { function = "input"; termination = "pull_down"; }; // DEFAULT STATE
pin@p39 { function = "input"; termination = "pull_down"; }; // DEFAULT STATE
pin@p40 { function = "input"; termination = "pull_down"; }; // DEFAULT STATE
pin@p41 { function = "input"; termination = "pull_down"; }; // DEFAULT STATE
pin@p42 { function = "input"; termination = "pull_down"; }; // DEFAULT STATE
pin@p43 { function = "input"; termination = "pull_down"; }; // DEFAULT STATE
pin@p44 { function = "input"; termination = "pull_down"; }; // DEFAULT STATE WAS INPUT NO PULL
pin@p45 { function = "input"; termination = "pull_down"; }; // DEFAULT STATE WAS INPUT NO PULL
// BANK 2 - DON'T TOUCH UNLESS YOU KNOW WHAT YOU'RE DOING //
pin@p46 { function = "input"; termination = "no_pulling"; drive_strength_mA = <8>; polarity = "active_high"; }; // HPD_N
pin@p47 { function = "output"; termination = "no_pulling"; drive_strength_mA = <8>; polarity = "active_low"; startup_state = "active"$
pin@p48 { function = "sdcard"; termination = "pull_up"; drive_strength_mA = <8>; }; // SD CLK
pin@p49 { function = "sdcard"; termination = "pull_up"; drive_strength_mA = <8>; }; // SD CMD
pin@p50 { function = "sdcard"; termination = "pull_up"; drive_strength_mA = <8>; }; // SD D0
pin@p51 { function = "sdcard"; termination = "pull_up"; drive_strength_mA = <8>; }; // SD D1
pin@p52 { function = "sdcard"; termination = "pull_up"; drive_strength_mA = <8>; }; // SD D2
pin@p53 { function = "sdcard"; termination = "pull_up"; drive_strength_mA = <8>; }; // SD D3
}; // pin_config
pin_defines {
pin_define@EMMC_ENABLE {
type = "internal";
number = <47>;
};
pin_define@NUM_CAMERAS {
type = "internal";
number = <2>;
};
pin_define@CAMERA_0_LED {
type = "internal";
number = <2>;
};
pin_define@CAMERA_0_SHUTDOWN {
type = "internal";
number = <3>;
};
pin_define@CAMERA_0_UNICAM_PORT {
type = "internal";
number = <1>;
};
pin_define@CAMERA_0_I2C_PORT {
type = "internal";
number = <0>;
};
pin_define@CAMERA_0_SDA_PIN {
type = "internal";
number = <0>;
};
pin_define@CAMERA_0_SCL_PIN {
type = "internal";
number = <1>;
};
pin_define@CAMERA_1_LED {
type = "internal";
number = <30>;
};
pin_define@CAMERA_1_SHUTDOWN {
type = "internal";
number = <31>;
};
pin_define@CAMERA_1_UNICAM_PORT {
type = "internal";
number = <0>;
};
pin_define@CAMERA_1_I2C_PORT {
type = "internal";
number = <0>;
};
pin_define@CAMERA_1_SDA_PIN {
type = "internal";
number = <28>;
};
pin_define@CAMERA_1_SCL_PIN {
type = "internal";
number = <29>;
};
}; // pin_defines
}; // pins_cm
pins_cm3 {
pin_config {
pin@default {
polarity = "active_high";
termination = "pull_down";
startup_state = "inactive";
function = "input";
}; // pin
pin@p0 { function = "input"; termination = "pull_up"; }; // CAMERA 0 I2C0 SDA
pin@p1 { function = "input"; termination = "pull_up"; }; // CAMERA 0 I2C0 SCL
pin@p2 { function = "output"; termination = "no_pulling"; }; // CAMERA 0 LED
pin@p3 { function = "output"; termination = "no_pulling"; }; // CAMERA 0 SHUTDOWN
pin@p14 { function = "uart0"; termination = "no_pulling"; drive_strength_mA = < 8 >; }; // TX uart0
pin@p15 { function = "uart0"; termination = "pull_up"; drive_strength_mA = < 8 >; }; // RX uart0
pin@p28 { function = "input"; termination = "pull_up"; }; // CAMERA 1 I2C0 SDA
pin@p29 { function = "input"; termination = "pull_up"; }; // CAMERA 1 I2C0 SCL
pin@p30 { function = "output"; termination = "no_pulling"; }; // CAMERA 1 LED
pin@p31 { function = "output"; termination = "no_pulling"; }; // CAMERA 1 SHUTDOWN
pin@p46 { function = "input"; termination = "pull_up"; }; // SMPS_SCL
pin@p47 { function = "input"; termination = "pull_up"; }; // SMPS_SDA
pin@p48 { function = "sdcard"; termination = "pull_up"; drive_strength_mA = < 8 >; }; // SD CLK
pin@p49 { function = "sdcard"; termination = "pull_up"; drive_strength_mA = < 8 >; }; // SD CMD
pin@p50 { function = "sdcard"; termination = "pull_up"; drive_strength_mA = < 8 >; }; // SD D0
pin@p51 { function = "sdcard"; termination = "pull_up"; drive_strength_mA = < 8 >; }; // SD D1
pin@p52 { function = "sdcard"; termination = "pull_up"; drive_strength_mA = < 8 >; }; // SD D2
pin@p53 { function = "sdcard"; termination = "pull_up"; drive_strength_mA = < 8 >; }; // SD D3
pin@p128 { function = "input"; termination = "no_pulling"; polarity = "active_low"; }; // Hotplug
pin@p129 { function = "output"; termination = "no_pulling"; polarity = "active_low"; }; // EMMC_ENABLE_N
}; // pin_config
pin_defines {
pin_define@HDMI_CONTROL_ATTACHED {
type = "external";
number = <0>;
};
pin_define@EMMC_ENABLE {
type = "external";
number = <1>;
};
pin_define@POWER_LOW {
type = "absent";
};
pin_define@LEDS_DISK_ACTIVITY {
type = "absent";
};
pin_define@LAN_RUN {
type = "absent";
};
pin_define@SMPS_SDA {
type = "internal";
number = <46>;
};
pin_define@SMPS_SCL {
type = "internal";
number = <47>;
};
pin_define@ETH_CLK {
type = "absent";
};
pin_define@WL_LPO_CLK {
type = "absent";
};
pin_define@USB_LIMIT_1A2 {
type = "absent";
};
pin_define@SIO_1V8_SEL {
type = "absent";
};
pin_define@PWML {
type = "absent";
};
pin_define@PWMR {
type = "absent";
};
pin_define@SAFE_MODE {
type = "absent";
};
pin_define@SD_CARD_DETECT {
type = "absent";
};
pin_define@ID_SDA {
type = "absent";
};
pin_define@ID_SCL {
type = "absent";
};
pin_define@NUM_CAMERAS {
type = "internal";
number = <2>;
};
pin_define@CAMERA_0_LED {
type = "internal";
number = <2>;
};
pin_define@CAMERA_0_SHUTDOWN {
type = "internal";
number = <3>;
};
pin_define@CAMERA_0_UNICAM_PORT {
type = "internal";
number = <1>;
};
pin_define@CAMERA_0_I2C_PORT {
type = "internal";
number = <0>;
};
pin_define@CAMERA_0_SDA_PIN {
type = "internal";
number = <0>;
};
pin_define@CAMERA_0_SCL_PIN {
type = "internal";
number = <1>;
};
pin_define@CAMERA_1_LED {
type = "internal";
number = <30>;
};
pin_define@CAMERA_1_SHUTDOWN {
type = "internal";
number = <31>;
};
pin_define@CAMERA_1_UNICAM_PORT {
type = "internal";
number = <0>;
};
pin_define@CAMERA_1_I2C_PORT {
type = "internal";
number = <0>;
};
pin_define@CAMERA_1_SDA_PIN {
type = "internal";
number = <28>;
};
pin_define@CAMERA_1_SCL_PIN {
type = "internal";
number = <29>;
};
}; // pin_defines
}; // pins_cm3
};
};
In my /boot/config.txt file, i set the dt_param=12C=on to off mode.
I tried rebooting my pi but still couldn't figure out the problem as it still persists.
I found out some i2c issue with cm3 with emmc flash as in the given link,
but, could this be a problem?
Could somebody please help? 