Hello, I am working mini2440 , i want to enable gpio's but for that i have to compile the kernel ( thts what i came to know via this forum ) , but how to compile? are there any steps mentioned to compile the kernel and enable gpio's. Thanks! Please reply!!!
There are thousands of threads on how to compile the Linux kernel and probably hundreds of them on enabling GPIO. Do you want to learn how to do this yourself or would you be happier with a kernel that already has GPIO enabled and a short tutorial on how to use them?
Hello Dave, Thanks for the reply , I would go for the second part of your reply "would you be happier with a kernel that already has GPIO enabled and a short tutorial on how to use them? " Could you please lead me to one document or step? I am not finding it in mini2440 manual?
http://www.oselas.org/oselas/bsp/pengutronix/mini2440_bsp_en.html Download: OSELAS.BSP-Pengutronix-Mini2440-Quickstart.pdf Read the section on GPIO near the back and then decide if you want to spend a few days/weeks learning how to drive a BSP rather than months or years doing it from scratch! If you proceed with the BSP option I would suggest: OSELAS.BSP-Pengutronix-Mini2440-2011.07.0.tgz
hello experts my ubuntu had corrupted and i reinstalled it but when i again install the toolchain and see the version it tells me command not found why?? i revised the process many times but result are same. please help
Did you put a path to your toolchain in /home/.bashrc
r@wboom: if you run a 64 bit system you must install the 32 bit compatibility libs, too, because the binary toolchain is 32 bit only.
How do I know which version of Kernel is there in my mini2440?
Is this possible to compile the kernel for SPI and install it in SD card and boot from it without disturbing the NAND flash kernel??
>> For Kernel Version "uname -a" >> Booting from SD Card is not possible.
You could have two SD cards with different kernels and/or root filesystems on them and boot using them. See the relevant chapters in the QuickStart guide. Barebox run be modified at runtime to boot from different sources. The main issue, as I see it, is that the kernel in NAND would be over-written. Maybe, you could have two kernel partitions - one for the kernel you want to keep on the mini2440 and the other for space to load the SD card kernel into. Barebox run be modified at runtime to boot from different sources. You would have to talk to the Barebox experts to see if this is even possible. Just a suggestion.
Hi all.I use mini2440 and compile the kernel linux-2.6.32.2-mini2440-20141011 (on CD) compile is ok but after install it, when first boot i cant touch the LCD to calibrate. My lcd td35.
td35? Do you mean t35? It might help if you post the boot messages. Do you get a command prompt?
Thanks for rep davef !
I use lcd TD35 ! I try recompile last night and install ok to use gpio.
Maybe i mistake when i chose option build.
devef ! I edit driver led for mini2440 to use order port.
This is the makefile to compile driver for ubuntu 14 kernel 3...
/*
obj-m += hello_kernel_module.o
all:
make -C /lib/modules/$(shell uname -r)/build M=$(PWD) modules
clean:
make -C /lib/modules/$(shell uname -r)/build M=$(PWD) clean
*/
if i compile driver for kernel 2.6, what i do know ? help me !
Sorry, I made one hello kernel module about 2 years ago and never looked at kernel modules again. Do you mean "what do I do after I have a properly cross-compiled kernel module"? I can only suggest a few keywords, <modprobe, insmod> I think they live in a special place in your file system then you need to tell the kernel to find and insert them. Good luck!