SAM3-P256 Development board for ATSAM3S4BA microcontroller

Atmel’s ATSAM3S4BA-AU is a member of a series of Flash microcontrollers based on the high performance 32-bit ARM Cortex-M3 RISC processor. It operates at a maximum speed of 64 MHz and features a 256 Kbyte Flash and a 48 Kbyte SRAM, Full Speed USB Device port with embedded transceiver, a High Speed MCI for SDIO/SD/MMC, an External Bus Interface featuring a Static Memory Controller providing connection to SRAM, PSRAM, NOR Flash and NAND Flash, 2x USARTs, 2x UARTs, 2x TWIs, 3x SPI, an I2S, as well as 1 PWM timer, 6x generalpurpose 16-bit timers, an RTC, an ADC, a 12-bit DAC and an analog comparator. SAM3-P256 has JTAG, UEXT, USB and two RS232 connectors, power jack, potentiometer, two user buttons, two status leds, power-on led, reset button and prototype area for all microcontroller's ports. All this gives the customer chance to build a wide range of applications.

• MCU: ATSAM3S4BA Cortex M3™ with 256K Bytes Program Flash,48K Bytes RAM, USB 2.0, RTT, 10 bit ADC 384 ksps, 2x UARTs, TWI (I2C), SPI, 3x 32bit TIMERS, 4x PWM, SSC, WDT, PDC (DMA) for all peripherals, up to 64MHz operation
• 2 RS232 connectors and drivers
• SD/MMC card connector
• Standard JTAG connector with ARM 2x10 pin layout for programming/debugging with ARM-JTAG
• USB connector
• RESET circuit
• RESET button
• 2 status LED
• 2 buttons
• UEXT connector
• TST jumper, for SAM-BA downloading
• On board voltage regulator 3.3V with up to 800mA current
• Single power supply: through USB or from extension header pin
• Power supply LED
• Power supply filtering capacitor
• 12 Mhz crystal
• Trimmer potentiometer
• Extension headers for all uC ports + RST and power supply
• PCB: FR-4, 1.5 mm (0,062"), soldermask, silkscreen component print
• Dimensions: 50 x 34 mm (2 x 1.3")
• Distance between the headers: 25.4 mm (1")

Documents:

• SAM3-P256.pdf user manual

Hardware:

• SAM3-P256 schematic

Software:

• Demo code for SAM3-P256