Atmel ATSAMD21E16LMOTOR SMART ARM-based Microcontrollers User Guide

Atmel ATSAMD21E16LMOTOR SMART ARM-based Microcontrollers

ATSAMD21E16L Microcontroller Card for Atmel Motor Control Starter Kit
The ATSAMD21E16LMOTOR is an MCU card for Atmel® Motor control starter kits. The hardware has the Atmel | SMART ARM®-based MCU, ATSAMD21E16L, with integrated on-board debug support. The MCU card can be directly used with the currently available ATSAMD21BLDC24V-STK®, a low voltage BLDC, PMSM motor control starter kit. The kit contains a driver board hardware with half-bridge power MOSFET drivers, current and voltage sensing circuit, Hall, and Encoder interface, fault protection circuits, etc. Supported by the Atmel studio integrated development platform, the kit provides easy access to the features of ATSAMD21E16L MCU and explains how to integrate the device in a custom motor control application. Plug-able MCU cards are available from Atmel, supporting other SMART ARM MCUs.

ATSAMD21E16LMOTOR Features

ATSAMD21E16LMOTOR has the following features:

• Debug support using on-board Atmel EDBG device
• TCC PWM signals for three-phase half-bridge drive
• ADC channels for common shunt and individual shunt phase current sensing
• ADC channels for motor BEMF sensing
• AC channels for BEMF signals
• EXTINT hall sensor interface
• EXTINT encoder sensor interface
• Atmel Xplained PRO extension signals support
• Communication and Power status LEDs

ATSAMD21E16LMOTOR Kit Content

ATSAMD21E16LMOTOR Kit contains ATSAMD21E16L MCU card that is pre-programmed with hall sensor based block commutation firmware for the ATSAMD21BLDC24V-STK setup. Quick start guide can be found in , ATSAMBLDC24V-STK User quide user guide for Atmel Low voltage BLDC motor control kit. . A nylon snap lock is attached to the MCU card that can be rotated to attach the card to the Driver base board in ATSAMD21BLDC24V-STK.
Figure 3-1. ATSADM21E16LMOTOR Kit Content

Design Documentation and Relevant Links

The following list contains links to the most relevant documents and software for ATSAMD21E16LMOTOR:

• ATSAMD21E16LMOTOR – Product page.
• ATSAMD21E16LMOTOR User Guide – PDF version of this User Guide.
• ATSAMD21BLDC24V-STK – Product page.
• ATSAMBLDC24V-STK User quide – User guide for Atmel Low voltage BLDC motor control kit. It contains the quick start guide instructions and driver board descriptions.
• ATSAMD21BLDC24V-STK Design Documentation – Package containing schematics, BOM, assembly drawings, 3D plots, layer plots, etc.
• Atmel Studio – Free Atmel IDE for development of C/C++ and assembler code for Atmel microcontrollers.
• EDBG User Guide – User guide containing more information about the on-board Embedded Debugger.
• Atmel Data Visualizer – Atmel Data Visualizer is a program used for processing and visualizing data. Data Visualizer can receive data from various sources such as the Embedded Debugger Data Gateway Interface found on Xplained Pro boards and COM ports.
• Xplained Pro products – Atmel Xplained Pro is a series of small-sized and easy-to-use evaluation kits for Atmel microcontrollers and other Atmel products. It consists of a series of low-cost MCU boards for evaluation and demonstration of features and capabilities of different MCU families.
• ATSAMD21E16L – MCU datasheet.

ATSAMD21E16L MCU Board

The main components on the ATSAMD21E16LMOTOR MCU card are highlighted in the PCB and block diagram given below. Figure 5-1. MCU Board PCB

Figure 5-2. MCU Board Block Diagram

Power Supply
The ATSAMD21E16LMOTOR MCU card takes 3.3VDC supply from the 67-pin edge connector. Both the EDBG device and the Main MCU operates from 3.3VDC. The power supply selection jumper on the Driver board should be connected to 3V3 (silk screen text) selection.

Main MCU Circuit
The ATSAMD21E16LMOTOR has an ATSAMD21E16L device. The device is intended to work with the MCU internal clock source. An external reset switch is connected to the MCU RESET pin.

Embedded Debugger
The ATSADM21E16L MCU is interfaced to the EDBG debug device. The EDBG uses SWD interface for programming and debugging the main MCU. A debug header is also provided on the MCU board with ARM Cortex® debug pinout. An external debugger can be connected to this debug port.
The DGI is a proprietary communication interface used by the Atmel Data Visualizer software to communicate with the development kits through the EDBG. The SERCOM3 of the ATSAMD21E16L connected to the EDBG device, supports the DGI SPI interface and uses the Atmel ADP protocol. The MCU SERCOM3 is also connected to the UART channel of the EDBG through a pair of “normally open” jumpers, the J200 and J201. Shorting these jumpers will enable the CDC UART interface for the main MCU.
High Speed USB port of the EDBG is accessible at the driver board. EDBG USB enumerates as a composite device supporting debug, DGI SPI, and CDC interfaces.
The USB port of the ATSAMD21J18A is connected to the Micro-USB connecter on the driver board.

67-pin MCU-DRIVER Board Interface
MCU pins are connected to the 67-pin interface header as given in the table below. The MCU card can be used with the Motor control driver kits from Atmel. The table given below describes the interface with Atmel low voltage motor control starter kit. Signals indicated by “||” are jumper connected pins that share another directly connected functionality. The normally-open jumper needs to be shorted in the PCB in order to access these additional features.

Table 5-1. ATSAMBLDC24V-STK driver board, ATSAMD21E16LMOTOR MCU Board Interface

PIN| LV INTERFACE Name| LV DRIVER BOARD

function

| SAM D21E16L PIN| D21E16L FUNCTION
---|---|---|---|---
1| EDBG USB HSP| EDBG USB| EDBG_DPHS| EDBG_USB_HS_P
2| NC| NC| NC| NC
3| EDBG USB HSN| EDBG USB| EDBG_DMHS| EDBG_USB_HS_N
4| EDBG ID2| EDBG_ID2/EXT1_1| EDBG PB01| EDBG ID2
5| NC| NC| NC| NC
6| EDBG ID1| EDBG_ID1| EDBG PA28| EDBG ID1
7| MCU USB DP| TARGET_USB_HS_P| PA25| MCU_USB_P
8| TARGET USB VBUS| VCC_TARGETUSB P5V0| PA27| MCU USB VBUS SENSE
9| MCU USB DN| TARGET_USB_HS_N| PA24| MCU_USB_N
10| EDBG USB VBUS| VCC_EDBG_USB_P5 V0| EDBG A10| EDBG USB VBUS SENSE
11| TARGET_USB_ID| TARGET_USB_ID| NC| NC
12| TEMP SDA| TWI_SDA, EXT1_11| NC| NC
13| TEMP SCL| TWI_SCL, EXT_12| NC| NC
14| FLASH SS| SPI_SS| NC| NC
15| FLASH MISO| SPI_MISO, EXT1_17| NC| NC
16| FLASH SCK| SPI_SCK, EXT1_18| NC| NC
17| FLASH MOSI| SPI_MOSI, EXT1_16| NC| NC
18| MCU GPIO1| EXT1_7(GPIO1)| NC| NC
19| MCU GPIO2| EXT1_8(GPIO2)| NC| NC
20| MCU GPIO3| EXT_3| NC| NC
21| MCU GPIO4| NC(GPIO4)| NC| NC
22| MCU GPIO5| EXT1_5(GPIO5)| NC| NC
23| MCU GPIO6| EXT1_6(GPIO6)| NC| NC
24| MCU GPIO7| TempAlert(GPIO7)| NC| NC
25| OCP| OCP(GPIO8)| PB03| GPIO
26| EXT1 RXD| UART RXD EXT1_13| PA19| SERCOM1(PAD3)
27| EXT1 TXD| UART TXD_EXT1_14| PA18||| SERCOM1(PAD2)
28| PWM UH| FET Driver| PA08| TCC0(WO0)
PIN| LV INTERFACE Name| LV DRIVER BOARD

function

| SAM D21E16L PIN| D21E16L FUNCTION
---|---|---|---|---
29| PWM UL| FET Driver| PA14| TCC0(WO4)
30| PWM VH| FET Driver| PA09| TCC0(WO1)
31| PWM VL| FET Driver| PA15| TCC0(WO5)
32| PWM WH| FET Driver| PA10| TCC0(WO2)
33| PWM WL| FET Driver| PA16| TCC0(WO6)
34| MCU_GPIO8 (ISENSE_COMMON)| EXT_15| PA02||| ADC(AIN0)
35| ATA RESET| EXT1_4(GPIO10)| NC| NC
36| ATA WD| EXT1_10(GPIO11)| NC| NC
37| ATA SLEEP| EXT1_9(GPIO12)| NC| NC
38| USHUNT_ADC| Current sense| PB04||| ADC(AIN12)
39| VSHUNT_ADC| Current sense| PB05||| ADC(AIN13)
40| WSHUNT_ADC| Current sense| PA11| ADC(AIN7)
41| MOTOR VDC (V SENSE)| MOTOR_ADC| PB02| ADC(AIN10)
42| BEMF U_ADC| BEMF sense ADC| PA04| ADC(AIN4)
43| BEMF V_ADC| BEMF sense ADC| PA05| ADC(AIN5)
44| BEMF_W_ADC| BEMF sense ADC| PA06| ADC(AIN6)
45| BEMF UP| BEMD sense AC| PA04 ||| AC0(AIN0)
46| BEMF UN| BEMD sense AC| PA05 ||| AC0(AIN1)
47| BEMF VP| BEMD sense AC| PA06 ||| AC0(AIN2)
48| BEMF VN| BEMD sense AC| PA07 ||| AC0(AIN3)
49| BEMF WP| BEMD sense AC| PB04| AC1(AIN0)
50| BEMF WN| BEMD sense AC| PB05| AC1(AIN1)
51| HALL1| Hall interface| PA03| EXTINT3
52| HALL2| Hall interface| PA02| EXTINT2
53| HALL3| Hall interface| PA07| EXTINT7
54| HALL TRX OE| HALL_TRX_OE| NC| NC
55| ENCODER_A| Encoder Interface| NC| NC
56| ENCODER_B| Encoder Interface| NC| NC
57| ENCODER_Z| Encoder Interface| NC| NC
58| ENCODER_EN| ENCODER EN| NC| NC
59| NC| NC| NC| NC
PIN| LV INTERFACE Name| LV DRIVER BOARD

function

| SAM D21E16L PIN| D21E16L FUNCTION
---|---|---|---|---
60| MCU BRAKE| NC| NC| NC
61| NC| NC| NC| NC
62| 3V3 SUPPLY for MCU| VCC_P| 3V3 SUPPLY for MCU| 3V3 SUPPLY for MCU
63| 3V3 SUPPLY for MCU| VCC_P| 3V3 SUPPLY for MCU| 3V3 SUPPLY for MCU
64| GND| GND| GND| GND
65| GND| GND| GND| GND
66| GND| GND| GND| GND
67| GND| GND| GND| GND

Product Compliance

RoHS and WEEE
The Atmel ATSAMD21E16LMOTOR and its accessories are manufactured in accordance to both the RoHS Directive (2002/95/EC) and the WEEE Directive (2002/96/EC).

CE and FCC
The Atmel ATSAMD21E16LMOTOR unit has been tested in accordance to the essential requirements and other relevant provisions of Directives:

• Directive 2004/108/EC (class B)
• FCC rules part 15 subpart B

The following standards are used for evaluation:

• EN 61326-1 (2013)
• FCC CFR 47 Part 15 (2013)

The Technical Construction File is located at:

• Atmel Norway
• Vestre Rosten 79
• 7075 Tiller
• Norway

Every effort has been made to minimize electromagnetic emissions from this product. However, under certain conditions, the system (this product connected to a target application circuit) may emit individual electromagnetic component frequencies which exceed the maximum values allowed by the above-mentioned standards. The frequency and magnitude of the emissions will be determined by several factors, including layout and routing of the target application with which the product is used.

Identifying Product ID and Revision

The revision and product identifier of the ATSAMD21E16LMOTOR can be found by looking at the sticker on the bottom side of the PCB. The identifier and revision are printed in plain text as A09-nnnn\rr, where nnnn is the identifier and rr is the revision. Also the label contains a 10-digit unique serial number.
The product identifier for ATSAMD21E16LMOTOR is A09-2684.

Revision

• Kit assembly revision for initial version is A09-2684/04. There are no known issues in this revision.

Document Revision History

© 2016 Atmel Corporation. / Rev.: Atmel-42747A-ATSAMD21E16LMOTOR_User Guide-08/2016
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