Tag Archives: X1000

Galileo in the Doghouse?

In one of my previous blogs I compared the Galileo board against the Raspberry Pi  Today we are looking at how the Galileo board compares to the affordable Beaglebone Black board. The Beaglebone is an initiative by Texas Instruments (TI). Unlike the Raspberry PI the Beaglebone board is all open source. Anyway let's look at the key technical data:

Beaglebone Black Intel Galileo
Target price: US$45 US$69
SoC: Texas Instruments Sitara AM3359 Intel Quark X1000
CPU: 1GHz ARM® Cortex-A8, NEON floating-point accelerator, 2x PRU 32-bit microcontrollers 400MHz 32-bit x86 Pentium Class CPU
GPU: SGX530 3D graphics accelerator none
Memory (DRAM): 512MB DDR3 RAM 256 Mbyte
PCIe ports: none PCIe 2.0
USB 2.0 ports: 1 Host,
1 Device
1 Host,
2 Device
Video input: none
Video outputs: HDMI (rev 1.3 & 1.4) none
Audio outputs: stereo via HDMI none
Onboard storage: 2GB 8-bit eMMC on-board flash storage
SD/MMC/SDIO 3.3V card slot
SD/MMC/SDIO 3.3V card slot
Onboard network: 10/100 Ethernet 10/100 Ethernet
Low-level peripherals: Power 5V, 3.3V , VDD_ADC(1.8V)
3.3V I/O on all signals
McASP0, SPI1, I2C, GPIO(69 max), LCD, GPMC, MMC1, MMC2, 7 AIN(1.8V MAX), 4 Timers, 4 Serial Ports, CAN0, EHRPWM(0,2),XDMA Interrupt, Power button, Expansion Board ID
16 × GPIO,
UART, I²C bus, SPI
Power ratings: 210-460 mA @ 5V 550 mA (1.9-2.2W)
Power source: 5 Volt 5 Volt
Size: 86.36 mm x 53.34 mm (3.4 in x 2.1 in) 106.68 mm x 71.12 mm (4.2 in x 2.8 in)

Both boards offer pretty similar technical data. One of the main difference is the absence of a graphics engine and HDMI interfaces in the Galileo's X1000 Quark processor. This obviously makes the Galileo less of a choice for graphics application. The Beaglebone also offers a higher CPU clock speed which will give you additional punch. However, if you need a miniPCIe slot Galileo is the way to go.

To close the triangle  I also recommend the detailed comparison  of the Raspberry Pi vs. the Beaglebone published in Make Magazine.

How does Galileo Stack up against Raspberry PI

I am interested is to compare Galileo and other DIY single board computers. In this post I want to analyze the Galileo board against the popular Rasberry PI. The first thing to note is that the Rasberry PI is not an Arduino compatible platform. However, there are now extension boards available that allow to use Arduino shields with Raspberry PI. Here are to examples: The first is the AlaMode for Raspberry Pi  the second is the GertDuino: Add-On Board for Raspberry PI . Both boards are priced in the range of a Rasberry PI. So the combination of a Raspberry PI with an Arduino shield extension puts this solution right where the Galileo board is.

Have a look at the table below. It compares the two single board computer's hardware. The technical data for the Raspberry PI are taken from WikiPedia.

Rasberry PI Model A Rasberry PI Model B Intel Galileo
Target price: US$ 25 US$ 35 US$69
SoC: Broadcom BCM2835 (CPU, GPU, DSP, SDRAM, and single USB port) Intel Quark X1000
CPU: 700 MHz ARM1176JZF-S CPU 400MHz 32-bit x86 Pentium Class CPU
GPU: Broadcom VideoCore IV @ 250 MHz none
Memory (DRAM): 256 MBytes (shared with GPU) 512 MBytes (shared with GPU) as of 15 October 2012 256 Mbyte
PCIe ports: none PCIe 2.0
USB 2.0 ports: 1 Host 2 Host (from LAN9512) 1 Host,
2 Device
Video input: A CSI input connector allows for the connection of a RPF designed camera module none
Video outputs: Composite RCA (PAL and NTSC), HDMI (rev 1.3 & 1.4), raw LCD Panels via DSI none
Audio outputs: 3.5 mm jack, HDMI, and, as of revision 2 boards, I²S audionull none
Onboard storage: SD/MMC/SDIO 3.3V card slot SD/MMC/SDIO 3.3V card slot
Onboard network: None 10/100 Ethernet (from LAN9512) 10/100 Ethernet
Low-level peripherals: 8 × GPIO, UART, I²C bus, SPI bus with two chip selects, I²S audio +3.3 V, +5 V, ground 16 × GPIO,
UART, I²C bus, SPI
Power ratings: 300 mA (1.5 W) 700 mA (3.5 W) 550 mA (1.9-2.2W)
Power source: 5 volt via MicroUSB or GPIO header 5 Volt
Size: 85.60 mm × 53.98 mm (3.370 in × 2.125 in) 106.68 mm x 71.12 mm (4.2 in x 2.8 in)

The Raspberry PI uses a SoC chip that was originally designed for the set-top box market. Therefore it shows a nice lineup of features on the video side. The integrated HDMI port and on-chip graphics accelerator are testimony to this. However for IoT applications the Quark X1000 SoC used by Galileo offers a really nice selection of interfaces.