'dev. boards' 카테고리의 글 목록

'dev. boards'에 해당되는 글 6건

2014.05.28 boot mode select with dip switches
2014.05.28 RIoT Board features
2014.05.23 epm240 internal oscillator test
2014.05.23 epm240 modules specifications
2014.05.23 epm240t100 modules
2013.08.31 iMX6Q Sabre Lite 부트 디바이스 바꾸기 SPI NOR -> SD

boot mode select with dip switches

switch                 D1  D2  D3  D4  D5  D6  D7  D8
=====================================================
serial download         0   1   x   x   x   x   x   x
SD (J16, bottom)        1   0   1   0   0   1   0   1
uSD (J17, top)          1   0   1   0   0   1   1   0
eMMC                    1   0   1   1   0   1   1   1

저작자표시 비영리 동일조건

'dev. boards > RIoTboard' 카테고리의 다른 글

RIoT Board features (0)	2014.05.28

Posted by 쿨한넘

RIoT Board features

Kit Features


The RIoTboard is based on the i.MX 6Solo processor from Freescale Semiconductor integrating all the functionalities of this multimedia application processor with the following features:

    Processor
        ARM Cortex A9 MPCore™ Processor at 1 GHz
        High-performing video processing unit which covers SD-level and HD-levelvideo decoders and SD-level encoders as a multi-standard video codec engine
        An OpenGL® ES 2.0 3D graphics accelerator with a shader and a 2D graphics accelerator for superior 3D, 2D, and user interface acceleration
    Memories
        1GByte of 32-bit wide DDR3 @ 800MHz
        4GB eMMC
    Media Interfaces
        Analog headphone/microphone, 3.5mm audio jack
        LVDS interface
        HDMI interface
        Parallel RGB interface
        Camera interface (Support CCD or CMOS camera)
        MIPI lanes at 1 Gbps
    Data Transfer Interfaces
        Debug Ports: 3 pin TTL level
        Serial Ports:
            UART2, 3 line serial port, RS232 Logic
            UART3,4,5, 3 line serial port, RS232 Logic (Expansion port)
        USB Ports:
            1 x USB2.0 OTG, mini USB, high-speed, 480Mbps
            4 x USB2.0 HOST, Type A, high-speed, 480Mbps
        uSD card interface
        SD card interface
        10M/100M/Gb Ethernet Interface (RJ45 jack)
        2 channel I2C interface (Expansion port)
        2 channel SPI interface (Expansion port)
        3 channel PWM interface (Expansion port)
        GPIO (Expansion port)
    Input Interfaces
        10-pin JTAG interface
        Boot configuration interface
    Others
        1 Power LED
        1 Open SDA LED
        2 User-defined LEDs
        1 DC Jack
        1 Reset button

저작자표시 비영리 동일조건

'dev. boards > RIoTboard' 카테고리의 다른 글

boot mode select with dip switches (0)	2014.05.28

Posted by 쿨한넘

epm240 internal oscillator test

max II, max V 계열 cpld 내부엔 oscillator 가 있다. 이 오실레이터의 테스트.

altera 홈페이지에서 AN 496: Using the Internal Oscillator in MAX II and MAX V CPLDs 를 참조했고, vhdl을 이용하여 테스트.

간단히하면, tool -> MegaWizard Plug-In Manager 선택. I/O에서 MAX II / MAX V Oscillator 선택. 그리고 오실레이터 이름 정하기. 여기에선 intOSC 로 이름지어 생성했다. 아래 코드는 이 오실레이터와의 인터페이스 예제.

library ieee;
use ieee.std_logic_1164.all;
use ieee.std_logic_arith.all;


entity epm240_test_red is

	port (
		clk			:	in	std_logic;
		cout		:	out	std_logic;
		intosc_out	:	out	std_logic
	);

end epm240_test_red;


architecture arc of epm240_test_red is

	signal value			:	integer range 0 to 50000000;
	signal led				:	std_logic;

	signal	int_osc_out		:	std_logic;
	signal	int_count		:	integer range 0 to 50000000;
	signal	int_out			:	std_logic;

	component intOSC is
		port (
			oscena		:	in	std_logic;
			osc			:	out	std_logic
		);
	end component;

begin

	process(clk)
	begin
	
		if (clk'event and clk = '1') then
		
			value <= value + 1;
			
			if (value = 10000000) then
				value <= 0;
				led <= not led;
			end if;
			
		end if;

	end process;

	
	OSC2: intOSC
		port map (
			oscena	=>	'1',
			osc		=>	int_osc_out
		);
	

	process(int_osc_out)
	begin
	
		if (int_osc_out'event and int_osc_out = '1') then
		
			int_count <= int_count + 1;
			
			if (int_count = 500000) then
				int_count <= 0;
				int_out <= not int_out;
			end if;	
			
		end if;

		end process;

	
	cout <= led;
	intosc_out <= int_out;

end arc;