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PC CARD driver

Started by billy_embedded in AT91SAM ARM15 years ago 6 replies

Hello, I was developmenting the PC card driver of Wince5.0 with At91SAM9261. NOW ,I have met a problem: When I insert Comapct Flash card, it...

Hello, I was developmenting the PC card driver of Wince5.0 with At91SAM9261. NOW ,I have met a problem: When I insert Comapct Flash card, it works normally. when I read from the Storage card file, it works correctly. but when I write something to the CF card ,it will conflict with LCD.(TFT 640*480) , the LCD will shaking, and the Line is shown as error. the debug message is that: 0x87b204...


AT91SAM9263 TWI (I2C) interface to RTC......

Started by Kiran in AT91SAM ARM15 years ago 3 replies

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


AT91SAM9RL64

Started by sananan82 in AT91SAM ARM15 years ago 2 replies

I am pretty new to this.. I am building an getting started example from AT91SAM9RL64-EK kit. I was able to build with eclipse and run with...

I am pretty new to this.. I am building an getting started example from AT91SAM9RL64-EK kit. I was able to build with eclipse and run with samba. Trying to debug with jlink gdb server and SAMICE. It takes long time to run on sram and with sdram i copied the init_sdram.gdb file from http://www.at91.com/samphpbb/viewtopic.php? f=9&t=3944. the gdb server output is Connected to 127.0.0.1 SAM...


at91rm9200 not booting from internal boot loader

Started by ms in AT91SAM ARM15 years ago 3 replies

hi all, we have designed a at91rm9200 based board. when we connect it to hyperterminal( on PC) on DBUG port with BMS pulled HIGH, nothing...

hi all, we have designed a at91rm9200 based board. when we connect it to hyperterminal( on PC) on DBUG port with BMS pulled HIGH, nothing comes on hyperterminal where as atmel datsheet says, it should load from internal boot rom and char "C" should come on hyperterminal. we have checked the settings of hyperterminal ("115200 8 N 1") matching as per data sheet. we have also observed follow...


Re: SPI Port DMA

Started by marcradzikowski in AT91SAM ARM15 years ago 4 replies

Gentlemen, I'm currently using an AT91SAM7S microprocessor to read a 1000-sample vector from an SAR A/D converter via a SPI port. The...

Gentlemen, I'm currently using an AT91SAM7S microprocessor to read a 1000-sample vector from an SAR A/D converter via a SPI port. The samples are taken every 16.6us, which amount to a total time of 16.6ms. It seems best to use the SPI port DMA feature to move the SPI data into the internal SRAM. What is most important though is that the micro is able to maintain a fixed sample ...


AT91SAM9263 is not booting with NAND Flash..........

Started by KRN in AT91SAM ARM15 years ago 7 replies

Deal All, I am using AT91SAM9263 Rev.B CPU, with NAND Boot-Strap from www.linux4sam.org. CPU will not boot with 64MB (512b page, 16k/block) ...

Deal All, I am using AT91SAM9263 Rev.B CPU, with NAND Boot-Strap from www.linux4sam.org. CPU will not boot with 64MB (512b page, 16k/block) NAND Flash (ST/Numonyx make) NAND512W3A2C, but I changed 256MB (2048b page, 64pages/block) NAND Flash (Micron make) MT29F2G08AACWP, CPU is booting well.... Can any one suggest me what may be the woring thing?? Thanks in advance. Regards, Kiran


CrossWorks and USB Mass Storage problem

Started by xtyc...@seznam.cz in AT91SAM ARM15 years ago 7 replies

Hello Everyone, I'm woking on the USB Mass Storage device for the AT91SAM7XC256. I use the CrossWorks compiler and wanted to see if anyone...

Hello Everyone, I'm woking on the USB Mass Storage device for the AT91SAM7XC256. I use the CrossWorks compiler and wanted to see if anyone else here has already converted demo aplication from the Atmel GCC USB Framework (and/or similar) for CrossWorks or if someone has their own and will share it? I lost one month of my life on it and it still isn'tworkning :-( . Thanks, Martin. Ps: I...


USB communication fails with AT91SAM7X256

Started by ashok_elec26 in AT91SAM ARM15 years ago 2 replies

Hi all...... I am using AT91SAM7x256 in my hardware to communicate with PC. Priviously I was using AT91SAM7X512,when its internal flash...

Hi all...... I am using AT91SAM7x256 in my hardware to communicate with PC. Priviously I was using AT91SAM7X512,when its internal flash was erased the device used to enumerate successfully........ I have now changed AT91SAM7X512 with AT91SAM7X256, but now when its internal flash is erased, host is not able enumerate the device. ------------------------------------


Toshiba T6963C LCD to Atmel AT91SAM9260

Started by "s.srinitin" in AT91SAM ARM15 years ago 1 reply

Have anyone one tried to connect a Toshiba T6963C based LCD (128x128) to Atmel AT91SAM9260 ? Can it be done using bit-banging. The LCD need to...

Have anyone one tried to connect a Toshiba T6963C based LCD (128x128) to Atmel AT91SAM9260 ? Can it be done using bit-banging. The LCD need to be used by an application running on the Linux. Can someone guide me how to interface(pins) and how to use the LCD from the Linux based applications. Thanks Nitin ------------------------------------


Help: AT91SAM7XC512 can't work on 96 MHz

Started by jeremywang2008 in AT91SAM ARM15 years ago 11 replies

Hi, I'm working with a AT91SAM7XC512. It's working well under 48MHz clock, now I wanna migrate to 96MHz. I checked the docs, it seems I just...

Hi, I'm working with a AT91SAM7XC512. It's working well under 48MHz clock, now I wanna migrate to 96MHz. I checked the docs, it seems I just need to change Processor Clock Prescaler from 1(PLL clock divided by 2) to 0(PLL clock): AT91C_BASE_PMC-> PMC_MCKR = AT91C_PMC_PRES_CLK (was: AT91C_PMC_PRES_CLK_2); while (!(AT91C_BASE_PMC-> PMC_SR & AT91C_PMC_MCKRDY)); The others should be the same


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