USART0 AT91SAM7S-EK

Started by drag...@gmail.com in AT91SAM ARM7 years ago 2 replies

Hello there! I've been working on my new AT91SAM7S-EK and the USART0. I'm following the AT91SAM7S256 Serial Communications tutorial from James P....

Hello there! I've been working on my new AT91SAM7S-EK and the USART0. I'm following the AT91SAM7S256 Serial Communications tutorial from James P. Lynch and i've had some problems to make it work. To connect my board with the computer and send/receive data, i used an USB/serial cable (pl2303) and the program "realterm". To see where was the problem i ran the next tests: 1.- Channel mode normal. ...


Selection of atmel controller ~ higher version of AT91SAM9260

Started by Vikas Sharma in AT91SAM ARM7 years ago 4 replies

Hi, I need to selet controller for my new board design. Can you please help me to meet its requirement. 1. 24 bpp pixel graphical LCD...

Hi, I need to selet controller for my new board design. Can you please help me to meet its requirement. 1. 24 bpp pixel graphical LCD drivers, 2. Device Drivers: Ethernet controller driver, CAN Driver, PCI driver, RTC Driver, Serial driver, SPI/EEPROM via GPIO, System clock driver, Timer drivers, Client parallel API's, Domain Name Service API's, Watch dog drivers. ** I want to us...


AT91SAM7S-EK (AT91SAM7S256) SPI Problems

Started by basi...@hotmail.com in AT91SAM ARM7 years ago 3 replies

Hi there, I have no experience with SPI so I am coming across problems. I have looked at other example codes and the general initialisation...

Hi there, I have no experience with SPI so I am coming across problems. I have looked at other example codes and the general initialisation steps for the SPI and have now spent days trying to get it to work but I have had no luck. Basically I have the AT91SAM7S-EK development board and I have put on a FM25CL64 NVRAM chip which I want to communicate to the board via SPI. Below is my Initiali...


Reg:AT91SAM9263 UART RECeiver and transmitter

Started by "just.rish" in AT91SAM ARM7 years ago 13 replies

I have to operate UART receiver such that the program not waits to read the uart but when RX_ready signal turns high it should genrate an...

I have to operate UART receiver such that the program not waits to read the uart but when RX_ready signal turns high it should genrate an interrupt which calls a subroutine and exits the normal sequence of the program receives receives the character and then exits the subroutine the executes the program normally Please reply if anybody could help..... ------------------------------------ ...


Setting PIO pins.

Started by Phill in AT91SAM ARM7 years ago 6 replies

Hi there, I've just started playing with ARMs, having just bought the AT91SAM7S-EK. I've done some simple LED flashing programs and hav got...

Hi there, I've just started playing with ARMs, having just bought the AT91SAM7S-EK. I've done some simple LED flashing programs and hav got Chan's FatFS running on the board having soldered on a SD/MMC connector. However now I want to try and interface the ARM to another micro through a buffer chip so that I can use the ARM as a SD/MMC controler. I have looked at the datasheet and done so...


Re: GPIO interrupt edge triggering

Started by pana...@yahoo.com in AT91SAM ARM7 years ago 1 reply

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...


Redirect ADS7846 interrupt from IRQ ro GPIO

Started by pana...@yahoo.com in AT91SAM ARM7 years ago

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...


what ever happened to KGDBOE in Linux gdb kernel debug ?

Started by Microbit_Ubuntu in AT91SAM ARM7 years ago 1 reply

Hi all, I've recently revisited possible improved ways of kernel module source debugging on eg. ARM9 target. The kgdboc method works...

Hi all, I've recently revisited possible improved ways of kernel module source debugging on eg. ARM9 target. The kgdboc method works considerably well but I never got anywhere with muxing on serial. Not that big a problem, but the serial method is clumsy and slow IMO. kgdboe seems to be some utopian concept ?? The whole NETPOLL frame seems to have vanished into the USB background. Is...


Problems with SPI

Started by Sebastian Kronenwerth in AT91SAM ARM7 years ago 1 reply

Hi everybody, I was sitting more than four houres on the same problem and I don't find an approach to fix it. So I hope anyone of you can help...

Hi everybody, I was sitting more than four houres on the same problem and I don't find an approach to fix it. So I hope anyone of you can help me! I have an ARM9 processor and try to use the SPI-Bus correctly. The PINs SCK and NTPC work fine but the whole time I have a high signal at my MOSI pin. My code is similar to this (and I use the at91lib from Atmel): #include #inc


Embest SBC9261-I board users ?

Started by Microbit_Ubuntu in AT91SAM ARM7 years ago 1 reply

Hi All, I've been sitting on the fence wrt getting an embedded linux board with VGA output for a while now. To avoid too much HW...

Hi All, I've been sitting on the fence wrt getting an embedded linux board with VGA output for a while now. To avoid too much HW transparency, I'd rather not take the Beagle board route just yet. (for transparency, I might as well use my PC :-) I've noticed the Embest SBC9261-I board, seems like a good deal. Are there any users here, or anyone familiar with this board ? I'm wondering ...


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