Datasheet
CS11 - Core with SD Card Interface
(ATSAMD21G18A)
Front
Back
☒
CHIP
Main Category Core
Sub Category Core with SD Card Interface
Introduced 1 January 2018
Current version 1.1.0
Current version date 1 March 2018
Dimensions
Size 2x2U (32x32 mm)
Weight 3 g
Height 3.1/1.5/0.0 mm
Main Chip Set
Main Chip SAM D21
Max. Frequency 48 MHz
Program Memory Size 256 KB
RAM Memory Size 32 KB of SRAM
Serial Configuration
Default Setting DTE
Change Setting DCE
UART Configuration
RXD PA11
TXD PA10
I²C Configuration
SDA PA22
SCL PA23
USB Configuration
USB D+ PA25
USB D- PA24
SPI Configuration
XinaBox Datasheet CS11 - Core with SD Card Interface
Contents
1 Overview
2 Specifications
3 Important Programming Notes
4 External Links
Overview
This xCHIP forms part of the core modules and is a low-power micro-controller using the 32-bit
ARM® Cortex®-M0+ processor, and ranges from 32- to 64-pins with up to 256 KB Flash and 32 KB
of SRAM. This module operates at a maximum frequency of 48 MHz.
Product Highlights
256 KB in-system self-programmable Flash
32 KB SRAM Memory
Specifications
ARM Cortex-M0+ CPU running at up to 48MHz
Power-on reset (POR) and brown-out detection
Idle and standby sleep modes
Important Programming Notes
The RGB LED has swapped cathode-anode compared to standard Arduino M0 boards.
That means that if you use Arduino M0 or similar board specification and not the XinaBox
CS11 board specification, you need to use LOW when turning a LED ON and HIGH
when turning a LED OFF.
If you want to use the SD Card adapter, you need a Chip Select Pin. The value is 3
(PA9).
If you want to use the USB connection as serial monitor, then refer to SerialUSB.
Standard Serial is accessible using an FTDI xChip, such as the IP01 or IP02.
The CS11 comes with a boot loader that allows you to program the Core 3 different ways:
The usual way by selecting the USB port the CS11 is connected to via either the
IP02 or IP03
By exporting the .bin file from for example Arduino and the place the .bin file on a
properly formatted SD Card. Once inserted into the CS11, the CS11 will program
itself with the .bin file
By converting the .bin file to a .uf2 file. Use the utils/uf2conv.py from [1] (https://git
hub.com/Microsoft/uf2). Then double click on the reset button on the CS11, which
puts it into programming mode and then once the CS11 shows up as a disk on
your computer, you simply drag the .uf2 file to the CS11 disk.
LEDs
One LED CS11:
4
RGB LED CS11:
Red: 11
Green: 12
Blue: 13
External Links
GitHub
CS11 on GitHub (https://github.com/xinabox/xCS11)