Hi dear friend, I'm working on linux2.6.30 kernel for At91sam9261-ek like board, in our board we have connected the irq pin of ads7846 to a...

Hi dear friend, I'm working on linux2.6.30 kernel for At91sam9261-ek like board, in our board we have connected the irq pin of ads7846 to a gpio(PIN_PA22) instead of IRQ2(PIN_PC2), therefore we have encountered a problem in the kernel for activation of gpio interrupt instead of IRQ. My question is, How can I redirect the interrupt routine from IRQ to gpio? Also I have done the following m...

Hi dear friend, I'm working on linux2.6.30 kernel for At91sam9261-ek like board, in our board we have connected the irq pin of ads7846 to a...

Hi dear friend, I'm working on linux2.6.30 kernel for At91sam9261-ek like board, in our board we have connected the irq pin of ads7846 to a gpio(PIN_PA22) instead of IRQ2(PIN_PC2), therefore we have encountered a problem in the kernel for activation of gpio interrupt instead of IRQ. My question is, How can I redirect the interrupt routine from IRQ to gpio? Also I have done the following m...

Hi there, I'm working on at91sam9261ek like board with linux 2.6.30 kernel. I need to redirect the interrupts from IRQ to gpio(PIN_PB6) for the...

Hi there, I'm working on at91sam9261ek like board with linux 2.6.30 kernel. I need to redirect the interrupts from IRQ to gpio(PIN_PB6) for the touchscreen. When i connect the IRQ and the gpio(PIN_PB6) with a wire, than i the touchscreen is working. The init function is called right, after login into linux on console i see "touchscreen0" device under "/dev/input". But of course i don't get a...

Hi friends, I have a question regarding "gpio_irq_type" in linux2.6.28 kernel. I would like to trigger an interrupt on the falling edge of a...

Hi friends, I have a question regarding "gpio_irq_type" in linux2.6.28 kernel. I would like to trigger an interrupt on the falling edge of a GPIO pin (PC3) on at91sam9261ek. I have my own driver ready but it fails when request_irq(AT91_PIN_PC3, interrupt_isr, IRQF_TRIGGER_FALLING, "myInt", NULL) is called. However if I changed code to request_irq(AT91_PIN_PC3, interrupt_isr, IRQF_TRIG...

I'm using an AT91SAM7X256 with some relais driven trough an ULN2003. I know that the ULN2003 is designed for 5V pegel, but 3,3V gives...

I'm using an AT91SAM7X256 with some relais driven trough an ULN2003. I know that the ULN2003 is designed for 5V pegel, but 3,3V gives enough current to safely drive my relais. My problem is that I get a high impulse at power on of about 25ms, which is enough for the relais to switch. This pulse is a flat 3,3V signal, no power up glitches or something. Since the GPIO should reset to high-impe...

Hi! After including my gpio module into the board AT91SAM9263, when i insmod the gpio.ko i get the following error DEV_GPIO: module license...

Hi! After including my gpio module into the board AT91SAM9263, when i insmod the gpio.ko i get the following error DEV_GPIO: module license 'unspecified' taints kernel Can anybody tell me the reason? ------------------------------------

I started out on a USB slave project a year back using an LPC2106 + an FTDI chip for the USB link. This was going to cost a...

I started out on a USB slave project a year back using an LPC2106 + an FTDI chip for the USB link. This was going to cost a bit (two chips etc and the GPIO speed of the LPC21xx is quite slow which would have been a problem. As it turned out I ran out of time through last

We are using open source so we need to add our modules into the kernel. We are trying to compile a gpio module for our kernel.But we dont know...

We are using open source so we need to add our modules into the kernel. We are trying to compile a gpio module for our kernel.But we dont know the procedure. Can anyone tell if it is possible to add a *.ko file into the board just by copying it into the board or not? or is there any other way to register the driver into the board? Please help if you can. ------------------------------------ ...

Hello, I am facing a problem in interfacing mpu6050 and AT91SAM7SE-EK using i2c protocol. I wanted to read temperature from a register of ...

Hello, I am facing a problem in interfacing mpu6050 and AT91SAM7SE-EK using i2c protocol. I wanted to read temperature from a register of MPU6050 but I am unable to do so. I did the following in my code: 1. Enabled the clock for twi 2. disabled the gpio pin and enabled the A-select register 3. Open drained the pins 4. cwgr value =0x2FFFF 5. mmr with the slave address 0x68, mread and 1 byt...

Dear All, Any one tried working with TWI (I2C) in AT91SAM9263. I have interface TWI to RTC (DS1338). If TWI is enbled there no O/P from...

Dear All, Any one tried working with TWI (I2C) in AT91SAM9263. I have interface TWI to RTC (DS1338). If TWI is enbled there no O/P from these pins(PB4 & PB5), how ever if these pins are configured as GPIO & I2C run in software, it is working fine. Can any one tell me about H/W TWI (I2C). Regards, Kiran