Imported from GitHub: logisim-evolution/GECKO5Education · commit 4ad623c · license MIT

Description

Openhardware educational platform based on the ideas of the ulx3s and Gecko4Education

README

GECKO5Education CPU-addon

This design can be used with the GECKO5Education or standalone and provides an educational base for programming related classes. In case this board is used with the GECKO5Education, the FTDI-chip is automatically routed to the integrated USB-hub, meaning that you only require one USB-C connection. In case of this situation, the USB-C connector of the GECKO5Education is disabled, and all functionality is provided by the USB-C connector of the CPU-addon board.

Debugging

This board integrates a Black Magic Probe. After production it needs to be programmed with the DFU-firmware once by an external programmer. After this firmware- updates can be performed as with the normal Black Magic Probe.

External connections

This boards integrates an extention connector (32 positions) that provides two PMOD-compatible interfaces. The different possibilities are listed below:

PMOD1:

Pin	function1	function2	function3
1	GPIO	SPI6nCS	I2S1_WS
2	GPIO	SPI6MOSI	I2S1_SDO
3	GPIO	SPI6MISO	I2S1_SDI
4	GPIO	SPI6SCK	I2S1_CK
7	GPIO	EXTI5
8	GPIO	EXTI6
9	GPIO	SCL4
10	GPIO	SDA4

PMOD2:

Pin	function1	function2	function3
1	GPIO	CTS2
2	GPIO	TX2
3	GPIO	RX2
4	GPIO	RTS2
7	GPIO	EXTI13
8	GPIO	ADC1_2_3	EXTI0
9	GPIO	ADC1_2_3	EXTI1
10	GPIO	ADC3	EXTI10