APF28

Description

The APF28 is a simple and low cost Single Board Computer targeted for small GUI, communication and control process.

Here is a list of the main features:

Processor: i.MX28x (ARM9 @ 454MHz)
RAM: DDR2 400. 64 to 512MB. 16 bits data bus. Default capacity is 128MB.
Flash: NAND. 256MB to 4GB, 8 bits data bus. Default capacity is 256MB
Ethernet: onboard Physical (ready to use Ethernet 10/100Mbit link)
USB: High speed USB OTG (OnTheGo) with onboard Physical
USB: 1 High speed Hosts with integrated PHY
Touchscreen controler (4/5 wires)
Low speed ADCs (up to 7)
High speed ADC
RTC and Watchdog
Battery charger (Li-On/Li-Po)
Supplies: high end DC/DC converters and LDOs on board. Only one external supply required (5V, batterie or 3.3V).
Mechanical dimensions: ~43x25mm

All the i.MX28 peripherals (LCD, SDIO, SPI, 6xSerial, I2C, 2xUSB, PWM, etc...) can be accessed through two high density Hirose connectors.

Default pin usage of the extension connectors J9 and J10 - Each functionality can be disabled simply using "make linux-menuconfig" (implementation on-going)

J9 Pin	Function	J9 Pin	Function
1	3.3V	2	5V
3	PWM6 (SAIF)	4	GND
5	PWM5	6	PWM7 (SAIF)
7	PWM3	8	PWM4
9	GND	10	GND
11	UART3	12	UART2
13	UART3	14	UART2
15	UART3	16	i2c1 (SAIF)
17	UART3	18	i2c1 (SAIF)
19	GND	20	GND
21	UART0	22	GPIO
23	UART0	24	GPIO
25	UART0	26	PWM1
27	UART0	28	PWM0
29	GND	30	GND
31	GPIO	32	GPIO
33	GPIO	34	GPIO (SAIF)
35	GPIO	36	GPIO
37	GND	38	GPIO
39	GND	40	GND

J10 Pin	Function	J10 Pin	Function
1	3.3V	2	5V
3	GPIO (SD)	4	VBAT
5	GPIO (SD)	6	GPIO (SD)
7	GPIO (SD)	8	GPIO (SD)
9	GPIO (SD)	10	GPIO
11	GND	12	GPIO
13	GND	14	SPI3
15	GND	16	SPI3
17	GND	18	SPI3
19	SPI2	20	SPI3
21	SPI2	22	GND
23	SPI2	24	SPDIF
25	SPI2	26	GPIO
27	GPIO (SD)	28	i2c0
29	GPIO (SD)	30	i2c0
31	3.3V	32	GND
33	GND	34	GND
35	LRADC6	36	LRADC1
37	HSADC	38	LRADC0
39	GND	40	GND