How to use board-dm365-evm.c ?

Thibault B.

Prodigy 180 points

Hi,

I created this simple program in order to use the board-dm365-evm object file that is why I did the following program:

main.c:

int main(){
evm_init_cpld();
cpld_leds_init();
return 0;
}

with this Makefile:

CC = arm-none-linux-gnueabi-gcc
all:
$(CC) -c main.c
$(CC) -o test gpio.o dma.o usb.o common.o sram.o gpio.o dma.o usb.o common.o sram.o mux.o dm365.o devices.o irq.o board-dm365-evm.o main.o

(all the objects are in the same folder)

And the compiler find thousands of undefined references such as :

main.o: In function `main':
main.c:(.text+0x8): undefined reference to `evm_init_cpld'
main.c:(.text+0xc): undefined reference to `cpld_leds_init'
/home/administrateur/dvsdk/git/arch/arm/mach-davinci/board-dm365-evm.o: In function `dm365evm_keyscan_enable':
board-dm365-evm.c:(.text+0x120): undefined reference to `davinci_cfg_reg'
/home/administrateur/dvsdk/git/arch/arm/mach-davinci/board-dm365-evm.o: In function `dm365evm_emac_configure':
board-dm365-evm.c:(.text+0x138): undefined reference to `davinci_cfg_reg'
board-dm365-evm.c:(.text+0x140): undefined reference to `davinci_cfg_reg'
board-dm365-evm.c:(.text+0x148): undefined reference to `davinci_cfg_reg'
board-dm365-evm.c:(.text+0x150): undefined reference to `davinci_cfg_reg'
...

I tried almost everything with the makefile...

I hope it is obvious for non-beginner !

Regards,

Thibault

over 15 years ago

0 Thibault B. over 15 years ago

Prodigy 180 points

I still need your help !

0 Sekhar Nori over 15 years ago

TI__Expert 6385 points

Hello,

Thibault B. said:

main.c:

int main(){
evm_init_cpld();
cpld_leds_init();
return 0;
}

This looks like you are mixing up kernel space and user space. Unlike a user space program, there is no 'main()' in the kernel and it does not get called automatically. Can you please explain what the objective is and I can probably provide some suggestions on how to do it.

Thibault B. said:
all:
$(CC) -c main.c
$(CC) -o test gpio.o dma.o usb.o common.o sram.o gpio.o dma.o usb.o common.o sram.o mux.o dm365.o devices.o irq.o board-dm365-evm.o main.o

As you can see the other files are being built by providing the name of the .o and not the .c file.

Thanks,

Sekhar

0 Thibault B. over 15 years ago in reply to Sekhar Nori

Prodigy 180 points

Hi Sekhar,

Thank you for your reply.

I started to get it since few days.

In fact my objective is to make a kind of IP Network Camera with the CMOS sensor MT9D131 that is why I have more questions :

How to configure the ccdc for YUV 8 bits ? Have I to change the kernel or can I just call a function (which one ?) ?

I added in board-dm365-evm.c :

    {
        .module_name = "mt9d131",
        .is_camera = 1,
        .grp_id = VPFE_SUBDEV_MT9T031,
        .num_inputs = ARRAY_SIZE(mt9t031_inputs),
        .inputs = mt9t031_inputs,
        .ccdc_if_params = {
            .if_type = VPFE_YCBCR_SYNC_8,
            .hdpol = VPFE_PINPOL_POSITIVE,
            .vdpol = VPFE_PINPOL_POSITIVE,
        },
        .board_info = {
            I2C_BOARD_INFO("mt9d131", 0x5d),*/
            /* this is for PCLK rising edge */
    /*        .platform_data = (void *)1,
        },*/

Is this enough ?

What to change in the dvsdk demos for a camera sensor ?

I am waiting for your help !

Best regards,

Thibault

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How to use board-dm365-evm.c ?