Hi, I have bought a mini 2440. By power on, a continuous beep is heard. What is the problem of board? Thanks in advance.
Continuous beep
Check the position of the boot switch. If in the SD card position and no SD card inserted, it does this.
The Mini2440 has no "SD card postion" for the switch you mentioned. The Mini6410 has. The Mini2440 can boot from its attached NOR or NAND flash memory. Try both with its boot switch. If there is still the beep and nothing else happens, your Mini2440 seems broken or at least the bootlader is corrupt.
Current thread: http://www.friendlyarm.net/forum/topic/874
I have ran a few successful codes on my mini2440. I was trying to read potentiometer values from AIN1 pin on the board. It was done properly once. Now, whenever the board is powered on in NAND mode, it gives a short beep. Whenever any gpio pin is set to value '1' even to glow an LED, it gives a continuous beep until the power is turned OFF. Can you help me resolve the problem? Thanks & Regards
You really need to be looking at the messages on a terminal program running on your Linux host while it is booting up. So, there is a short beep on power up, the unit appears to boot up properly then whenever you run your program to set any gpio to '1' .... Short beep on bootup, which never happened before. Which distro are you running? Sounds to me like the PWM function has been enabled somehow, ie by a corrupted kernel image?? Can you re-load in your kernel?
Thanks for your reply! I reloaded my kernel image and the bootloader, and for now the beeping seems to have stopped.