Renesas M3016 Manual de usuario

M3016 Evaluation Kit User Manual

Jul.21.20

Page 1

1. Overview

The Renesas Serial MRAM evaluation board contains a Serial MRAM device utilizing Spin-Transfer

Torque Magneto-Resistive Random-Access Memory (STT-MRAM) technology enabling users to develop

interactive hardware solutions using the Renesas Serial MRAM evaluation board and an Arduino UNO

Rev. 3 host board connected via standard SPI interface. The Arduino UNO host board communicates

with a computer using a USB 2.0 cable type A/B and terminal emulator software. Renesas software

bundled APIs and test program provide basic access to functionality of the Renesas Serial MRAM, also

known as PersistentSRAM(P-SRAM) device. The Arduino UNO SPI can operate up to 8MHz.

The MRAM evaluation kitincludes:

One Arduino UNOREV 3 hostboard

One Renesas MRAM evaluation board

oOne populated MRAMdevice (see Table 1below)

One USB 2.0 cable type A/B

M30162040054X0ISA* MRAM device

*Alternatively MRAMdevice is marked as AS3016204-0054X0ISAY

2. Renesas Serial MRAM Product Support

The Renesas MRAM evaluation board ispopulated withthe followingSerial MRAMdevice:

Table 1: Renesas Product Support

Part Number

Density

Voltage

(Vcc/Vccq)

Frequency

Interface

Package

M30162040054XxxSAx*

16Mb

2.7V to 3.6V

Up to 54Mhz

SPI, QSPI

8-Pin SOIC

*AlternativelyMRAMdevice ismarkedas AS3016204-0054X0ISAY

M3016 Evaluation Kit User Manual

Jul.21.20

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Contents

1. Overview............................................................................................................................1

2. Renesas Serial MRAM Product Support................................................................................1

3. Host Board Support.............................................................................................................3

4.1 Requirements.....................................................................................................................4

4.2 Software Installations..........................................................................................................4

4.3 Connecting the Arduino UNO Host Board.............................................................................5

4.3.1 Configuring PuTTY........................................................................................................6

4.4 APIs....................................................................................................................................8

4.4.1 SPI Write .....................................................................................................................8

4.4.2 SPI Read ......................................................................................................................8

4.4.3 SPI Burst Write.............................................................................................................8

4.4.4 SPI Burst Read..............................................................................................................9

4.4.5 SPI Status Register Write..............................................................................................9

4.4.6 SPI Status Register Read...............................................................................................9

Appendix A......................................................................................................................................10

Appendix B......................................................................................................................................12

Revision History...............................................................................................................................14

M3016 Evaluation Kit User Manual

Jul.21.20

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3. Host Board Support

The Renesas MRAM evaluation board is compatible with the Arduino UNO REV3 host platform. For

details of the Arduino UNO REV3 hostboard go to Arduino UNOREV3.

Figure 3: Renesas MRAM

Evaluation Board populated with an

SOIC-8 MRAM device

Figure 1: Renesas MRAM Evaluation Board

populated with a DFN (WSON)-8 MRAM

device

Figure 2: Arduino Uno Host with Renesas

MRAM Evaluation Board on Top with

DFN (WSON)-8 MRAM device

Figure 4: Arduino Uno Host with Renesas

MRAM Evaluation Board on Top with

SOIC-8 MRAM device

M3016 Evaluation Kit User Manual

Jul.21.20

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4.1 Requirements

A PC system with one available USB

2.0/3.0 port

Windows 7/8/10 with 32/64-bit

OperationSystem

An Arduino UNOhost board R3

A USB 2.0 cable Type A/B

4.2 Software Installations

1. Downloading the Arduino software

IDE (Integrated Development

Environment). This software is

required to program the Arduino UNO

host board.

Downloadthe latestversionof

Windows installerfrom

(https://www.arduino.cc/en/Main)

2. Installing Arduino application software anddrivers

Click on “Arduino-x.x.x-windows.exe” file to install Arduino application software and

USB drivers

Figure 5: USB Driver Installation

M3016 Evaluation Kit User Manual

Jul.21.20

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4.3 Connecting the Arduino UNO Host Board

Follow the step-by-step instructions in the following order below to configure and connect the

Arduino UNO host board to your computer:

1. Attach the Renesas MRAM evaluation board on top of the Arduino UNO host board via the

UNO R3 headers (refertoFigures 1and 2 or Figures 3 and4).

2. Connect the Arduino UNO host board to your computer’s USB port using the USB 2.0 cable

Type A/B. The green power LEDs on both the Arduino UNO host board and the Renesas

MRAM evaluation board should go on.

3. For first time installation, Windows should initiate the USB driver installation process. You

can check to ensure the USB drivers have been properly installed by opening Windows

Device Manager, andlooking under “Ports (COM & LPT)”. Windows should assign COM port

# to the Arduino UNO host board. If no COM port has been assigned to the Arduino UNO

host board, then remove and re-insert USB connector from/into PC’s USB port for Windows

to re-enumerate the USB port. If that still doesn’t work, then you may need to re-install the

USB drivers.

Figure 6: Selecting COM Port for Arduino UNO

M3016 Evaluation Kit User Manual

Jul.21.20

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4.3.1 Configuring PuTTY

Follow the step-by-stepinstructions belowto configure the PuTTYUART terminal:

1. Double click onPutty iconto openPuTTY ConfigurationWindow.

2. Under “SSH”, select “Serial”. Under “Flow control” pull-down menu, select “None”(referto

Figure 7).

3. Under Category, select “Terminal”, and check “Implicit CR in every LF” checkbox (refer to

Figure 8).

4. Select“Session” under“Connection Type”, select “Serial”(refertoFigure 9).

5. In the “Serial line” box, type “COMx” where x is the COM port # that Windows has assigned

to ArduinoUNOboard (referto Figure 9).

6. In the “Speed” box, type “115200” to set the baud rate (refertoFigure9).

7. In the “Saved Sessions” box, type “COMx” where x is the COM port # that Windows has

assigned toArduinoUNOboard(referto Figure 9).

8. Click “Save” to save the COMx configuration file(refertoFigure 9).

9. Click “Open” to launch PuTTY (referto Figure 9).

10. The Arduino UNO host board and the Renesas MRAM evaluation board are now up-and-

running. The Terminal Monitor window will display a menu of read/write/compare tests

for the Renesas MRAM device (referto Figure 10).

Figure 8: PuTTY Configuration - 2

Figure 7: PuTTY Configuration - 1

M3016 Evaluation Kit User Manual

Jul.21.20

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Figure 9: PuTTY Configuration - 3

Figure 10: Renesas Test Menu on MRAM - PuTTY

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4.4 APIs

4.4.1 SPI Write

Purpose: API to write to MRAM

Arguments: MRAM address (2-byte address;3-byte addresswhenTHREEBYTEADDRESS is

enabled)

MRAM data: 2-byte data

Parameter: unint32_t (address);unit16_t (write data)

Return: None

Usage: SPI_Write (0x0000, 0x55); Write 2-byte data 0x55 to MRAM starting address

0x0000

4.4.2 SPI Read

Purpose: API to read from MRAM device

Arguments: MRAM address (2-byte address;3-byte addresswhenTHREEBYTEADDRESS is

enabled)

MRAM data: 2-byte data

Parameter: unint32_t (address)

Return: None

Usage: SPI_Read(0x0000); Read 2-byte datafrom MRAM startingaddress 0x0000, and

assigns to variable ‘value’

4.4.3 SPI Burst Write

Purpose: API to burst-write to P-SRAMdevice

Arguments: P-SRAMaddress (2-byte address; 3-byte address whenTHREEBYTEADDRESS is

enabled)

SPnvSRAM_wr_data_ptr(databufferwhichneedstobe writtenintoP-SRAM)

Total_count (total numberof words to write)

Parameter: unint32_t (address);unit16_t (write data); unint32_t (total count)

Return: None

M3016 Evaluation Kit User Manual

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Usage: SPI_BurstWrite (0x0000, wr_buf, 16); Write 16 bytes of data fromwr_buf to

P-SRAMstartingaddress 0x0000

4.4.4 SPI Burst Read

Purpose: API to burst-read toP-SRAMdevice

Arguments: P-SRAMaddress (2-byte address; 3-byte address whenTHREEBYTEADDRESS is

enabled)

SPnvSRAM_rd_data_ptr(databuffertoholdthe data beingreadfromP-SRAM)

Total_count (total numberof words to write)

Parameter: unint32_t (address);unit8_t(read_data_ptr);unint32_t (total_count)

Return: None

Usage: SPI_BurstWrite (0x0000, rd_buf, 16); Read 16 bytes of data from P-SRAM

starting address0x0000

4.4.5 SPI Status Register Write

Purpose: API to write status registerbyte

Arguments: 1-byte statusregisterdata

Return: None

Usage: SPI_Status_Reg_Write (0x00); Write one byte 0x00 to statusregister

4.4.6 SPI Status Register Read

Purpose: API to read status registerbyte

Arguments: 1-byte statusregisterdata

Return: None

Usage: SPI_Status_Reg_Read (); Readone byte datafromstatus register, and assigns to

variable ‘status’

M3016 Evaluation Kit User Manual

Jul.21.20

Page 10

Appendix A

Figure 11: M3016-EVK –Schematic (sheet 1)

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