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AT91RM9200 SPI DRIVER

The AT91RM microcontroller offers a flexible configuration of on- and off-chip memories together with an extensive set of peripherals for control, communication and data storage purposes. It targets applications requiring enhanced performance such as host processors for system control and connectivity. Its extensive peripheral set includes a USB 2. This documentation is expected to be read in conjunction with the AT91RM processor HAL documentation and further device support and subsystems are described and documented there. This can happen over either a serial line or over ethernet. This driver is also loaded automatically when configuring for the EK or DK targets.

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For typical eCos development, a RedBoot image is programmed into the flash memory, and the board will boot into this xt91rm9200 from reset. This driver is also loaded automatically when configuring for the EK or DK targets. The original port was undertaken using arm-elf-gcc version 3. An integrated Voltage Regulator permits single supply at 3.

Linux Kernel Driver DataBase: CONFIG_SPI_ATMEL: Atmel SPI Controller

In industrial temperature, worse case conditions the maximum clock frequency is 48MHz. Another communication channel such as ethernet should be used instead.

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Examples include telematics systems connecting GPS receivers and GPRS communications, industrial automation, medical systems and point-of-sales terminals. Typical core supply is 1. It targets applications requiring enhanced performance such as host processors for system control and connectivity.

CONFIG_SPI_ATMEL: Atmel SPI Controller

Its extensive peripheral set includes a USB 2. In this document, an EK board will be assumed for the purposes of examples and output. The remaining blocks can be used by application code. Its System Controller manages interrupts, clocks, power, time, debug and reset, significantly reducing the external chip count and minimizing power consumption.

The AT91RM has a fully featured system controller for efficient system management, including two on-chip oscillators and PLLs, clock generator, advanced interrupt controller AICdebug unit DBGUperiodic interval timer, watchdog timer and real-time clock with alarm interrupt.

Performance of AT91RM SPI ?

If either of these devices is needed by the application, either directly or via the serial driver, then it cannot also be used for RedBoot communication. Its Peripheral DMA Controller channels eliminate processor bottlenecks during peripheral-to-memory transfers.

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RedBoot provides gdb stub functionality so it is then possible to download and debug stand-alone and eCos applications via the gdb debugger.

All these packages are automatically loaded when configuring for the EK or DK targets. It supports at91rm2900 Linux and Windows CE.

This documentation is expected to be read in conjunction with the AT91RM processor HAL documentation and further device support and subsystems are described and documented there. It is supported by an Evaluation Board and extensive application development tools.

This can happen over either a serial line or over ethernet.

The AT91RM microcontroller offers a flexible configuration of on- and off-chip memories together with an extensive set of peripherals for control, communication and data storage purposes. The topmost block is used to manage the flash and hold RedBoot fconfig values. That package is automatically loaded when configuring for the EK at91r,9200 DK targets.