SiM3U1xx 32-bit MCU USB Development Kit

Overview

This is a development kit [3] that is used to develop software for the SiM3U1xx MCUs.

For more information about the SiM3U167 SoC and the SiM3U1xx board, refer to these documents:

The sim3u1xx_dk board supports the hardware features listed below.

on-chip / on-board: Feature integrated in the SoC / present on the board.
2 / 2: Number of instances that are enabled / disabled.
Click on the label to see the first instance of this feature in the board/SoC DTS files.
vnd,foo: Compatible string for the Devicetree binding matching the feature.
Click on the link to view the binding documentation.

Type	Location	Description	Compatible
CPU	on-chip	ARM Cortex-M3 CPU1	`arm,cortex-m3`
Clock control	on-chip	Silabs Si32 PLL clock controller node1	`silabs,si32-pll`
	on-chip	Silabs Si32 AHB clock controller node1	`silabs,si32-ahb`
	on-chip	Silabs Si32 APB clock controller node1	`silabs,si32-apb`
Cryptographic accelerator	on-chip	Si32 AES node1	`silabs,si32-aes`
DMA	on-chip	Si32 DMA controller1	`silabs,si32-dma`
Flash controller	on-chip	Silabs Si32 flash controller1	`silabs,si32-flash-controller`
GPIO & Headers	on-chip	Si32 GPIO4	`silabs,si32-gpio`
Input	on-board	Group of GPIO-bound input keys1	`gpio-keys`
Interrupt controller	on-chip	ARMv7-M NVIC (Nested Vectored Interrupt Controller)1	`arm,v7m-nvic`
LED	on-board	Group of GPIO-controlled LEDs1	`gpio-leds`
MTD	on-chip	Flash node1	`soc-nv-flash`
MTD	on-board	Fixed partitions of a flash (or other non-volatile storage) memory1	`fixed-partitions`
Pin control	on-chip	Silabs Si32 Pin Controller1	`silabs,si32-pinctrl`
Serial controller	on-chip	Si32 USART1 1	`silabs,si32-usart`
SRAM	on-chip	Generic on-chip SRAM description1	`mmio-sram`
Timer	on-chip	ARMv7-M System Tick1	`arm,armv7m-systick`

Pin	Name	Note
PB1.12	TX (O)	Serial connection to host via USB virtual COM port
PB1.13	RX (I)
PB1.14	RTS (O)
PB1.15	CTS (I)
PB2.8	Push button switch (SW2)
PB2.9	Push button switch (SW3)
PB2.10	Red LED (DS3)
PB2.11	Yellow LED (DS4)
PB1.5	Potentiometer
PB2.12	Potentiometer bias

The sample application Hello World is used for this example. Build the Zephyr kernel and application:

# From the root of the zephyr repository
west build -b sim3u1xx_dk samples/hello_world

Connect the sim3u1xx_dk to your host computer using both USB port and you should see a USB serial connection.

Open a serial terminal (minicom, putty, etc.) with the following settings:

Reset the board and you’ll see the following message on the corresponding serial port terminal session:

Hello World! sim3u1xx_dk/sim3u167