OPOS93Dev

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Description

This is the Armadeus System's standard development board/baseboard for the OPOS93 module.

File:OPOS93 Dev.png

https://www.opossom.com/static/images/opos93_dev.jpg

Resources

• Datasheet and schematics
• Product page on Armadeus Systems website

Feature list

Audio S/PDIF: audio in/out ALSA Video Out LCD BackLight FrameBuffer Video In Camera interface

User Input Touchscreen Wired communication UART SPI I2C USB Host USB_OTG USB_Gadget CAN bus 1-wire Storage MultiMediaCard

Wireless communication Wi-Fi usage on Linux Bluetooth usage on Linux Other ADC GPIOlib JTAG

Connectors

• RPi compatible connector:

Linux GPIO or device	i.MX93 Mux	wiringPi N°	RPi name	Function	JX Pin	JX Pin	Function	RPi name	wiringPi N°	i.MX93 Mux	Linux GPIO or device
-				3.3V	1	2	5V				-
/dev/i2c-1	I2C1_SDA		SDA1	I2C data	3	4	5V				-
/dev/i2c-1	I2C1_SCL		SCL1	I2C clock	5	6	GND				-
gpio9	GPIO_IO24__GPIO2_IO24	7	GPIO7	GPIO / AIN9	7	8	UART Tx	TxD			/dev/ttymxc1
				GND	9	10	UART Rx	RxD			/dev/ttymxc1
gpio24	GPIO_IO21__GPIO2_IO21	0	GPIO0	GPIO	11	12	GPIO / AIN8	GPIO1		GPIO_IO20__GPIO2_IO20	gpio8
gpio25	GPIO_IO19__GPIO2_IO19		GPIO2	GPIO	13	14	GND
gpio96	GPIO_IO18__GPIO2_IO18		GPIO3	GPIO	15	16	GPIO	GPIO4	4	GPIO_IO17__GPIO2_IO17	gpio18
				3,3V	17	18	GPIO	GPIO5	5	UART1_RTS_B__GPIO1_IO19	gpio19
	SAI1_RXD0__LPSPI1_SOUT			SPI MOSI	19	20	GND
	SAI1_TXC__LPSPI1_SIN			SPI MISO	21	22	GPIO	GPIO6	6	NAND_WE_B__GPIO4_IO01	gpio97
	SAI1_TXD0__LPSPI1_SCK			SPI CLK	23	24	SPI_CS0			SAI1_TXFS__LPSPI1_PCS0
				GND	25	26	SPI_CS1
				I2C Data	27	28	I2C clock
gpio132	SNVS_TAMPER4__GPIO5_IO04			GPIO	29	30	GND
				GPIO	31	32	GPIO			SNVS_TAMPER0__GPIO5_IO00	gpio128
gpio134	SNVS_TAMPER6__GPIO5_IO06			GPIO	33	34	GND
gpio135	SNVS_TAMPER7__GPIO5_IO07			GPIO	35	36	GPIO			SNVS_TAMPER3__GPIO5_IO03	gpio131
				GPIO	37	38	GPIO			SNVS_TAMPER2__GPIO5_IO02	gpio130
				GND	39	40	GPIO / 1-Wire			SNVS_TAMPER1__GPIO5_IO01	gpio129

Tested RPi shields/hats

• Dragino Lora/GPS HAT
• PiTinfoV1.2 HAT

Tips

Bootstrap

• Put Boot0 jumper to go in Bootstrap mode

U-Boot

• Use OPOS93Dev "User" LED in U-Boot scripts:
  • ON:

     BIOS> gpio set 68 

  • OFF:

     BIOS> gpio clear 68 

Linux

• to activate login in Framebuffer console, please uncomment /etc/inittab line 35 this way:

# Set up a getty on LCD
tty1::respawn:/sbin/getty 38400 tty1

Links

• RaspberryPi is a registered trademark of RaspberryPi Foundation.