Renesas Synergy SK-S7G2 User manual

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Rev 0.5
Sep 24, 2015
S7G2 SK-S7G2 STARTER KIT
USER MANUAL

Synergy S7G2 SK-S7G2 Starter Kit User Manual
R12UM0001EU0100 Rev 0.5
Sep 24, 2015
Page 2 of 31
Disclaimer
By using this Synergy S7G2 SK-S7G2 Starter Kit (SK-S7G2) by Renesas, the user accepts the f ll wing
terms. The SK-S7G2 is n t guaranteed t be err r free, and the entire risk as t the results and perf rmance f
the SK-S7G2 is assumed by the User. The SK-S7G2 is pr vided by Renesas n an “as is” basis with ut warranty
f any kind whether express r implied, including but n t limited t the implied warranties f satisfact ry
quality, fitness f r a particular purp se, title, and n n- infringement f intellectual pr perty rights with
regard t the SK-S7G2. Renesas expressly disclaims all such warranties. Renesas r its affiliates shall in n
event be liable f r any l ss f pr fit, l ss f data, l ss f c ntract, l ss f business, damage t
reputati n r g dwill, any ec n mic l ss, any repr gramming r recall c sts (whether the f reg ing
l sses are direct r indirect) n r shall Renesas r its affiliates be liable f r any ther direct r indirect
special, incidental, r c nsequential damages arising ut f r in relati n t the use f this SK-S7G2, even if
Renesas r its affiliates have been advised f the p ssibility f such damages.
CC Part 15 Compliance
Industry Canada Compliance
This device c mplies with Industry Canada license-exempt RSS standard(s). Operati n is subject t the f ll wing
tw c nditi ns:
1. This device may n t cause harmful interference;
2. This device must accept any interference received, including interference that may cause undesired
perati n f the device.

Synergy S7G2 SK-S7G2 Starter Kit User Manual
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Cet appareil est c nf rme à Industrie Canada une licence standard RSS ex nérés (s). S n f ncti nnement est
s umis aux deux c nditi ns suivantes:
1. Cet appareil ne d it pas pr v quer d'interférences
2. Cet appareil d it accepter t ute interférence reçue, y c mpris les interférences p uvant pr v quer un
f ncti nnement indésirable de l'appareil.
Precautions
This Renesas SK-S7G2 is nly intended f r use in a lab rat ry envir nment under ambient temperature and
humidity c nditi ns. A safe separati n distance sh uld be used between this and sensitive equipment. Its use
utside the lab rat ry, classr m, study area, r similar such area invalidates c nf rmity with the pr tecti n
requirements f the Electr magnetic C mpatibility Directive and c uld lead t pr secuti n.
The pr duct generates, uses, and can radiate radi frequency energy and may cause harmful interference t
radi c mmunicati ns. H wever, there is n guarantee that interference will n t ccur in a particular
installati n. If this equipment causes harmful interference t radi r televisi n recepti n, which can be
determined by turning the equipment ff r n, y u are enc uraged t try t c rrect the interference by ne r
m re f the f ll wing measures;
• Ensure attached cables d n t lie acr ss the equipment
• Re rient the receiving antenna
• Increase the distance between the equipment and the receiver
• C nnect the equipment int an utlet n a circuit different fr m that which the receiver is c nnected
• P wer d wn the equipment when n t in use
• C nsult the dealer r an experienced radi /TV technician f r help
NOTE: It is rec mmended that wherever p ssible shielded interface cables are used.
The pr duct is p tentially susceptible t certain EMC phen mena. T mitigate against them it is rec mmended
that the f ll wing measures be undertaken;
• The user is advised that m bile ph nes sh uld n t be used within 10m f the pr duct when in use.
• The user is advised t take ESD precauti ns when handling the equipment.
The Renesas SK-S7G2 d es n t represent and ideal reference design f r an end pr duct and d es n t fulfill the
regulat ry standards f r an end pr duct.

Synergy S7G2 SK-S7G2 Starter Kit User Manual
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Table of Contents
Chapter 1 - Preface ....................................................................................................................................................... 1
Chapter 2 - Overview and Purp se............................................................................................................................... 2
2.1 Purp se ....................................................................................................................................................... 2
2.2 In The B x .................................................................................................................................................... 2
2.3 Bl ck Diagram ............................................................................................................................................. 3
2.4 Hardware Features ...................................................................................................................................... 3
2.5 Res urces .................................................................................................................................................... 3
Chapter 3 - Getting Started .......................................................................................................................................... 4
Chapter 4 – P wer Supply Requirements ..................................................................................................................... 5
4.1 P wer Supply .............................................................................................................................................. 5
4.2 P wer-Up Behavi r ..................................................................................................................................... 5
4.3 Micr c ntr ller Current .............................................................................................................................. 5
Chapter 5 – B ard C mp nents ................................................................................................................................... 7
5.1 On B ard J-Link Debugger ........................................................................................................................... 7
5.2 LCD .............................................................................................................................................................. 7
5.3 Ethernet ...................................................................................................................................................... 8
5.4 PMOD .......................................................................................................................................................... 8
5.5 CAN, RS-232/485 ......................................................................................................................................... 8
5.6 USB Device P rt........................................................................................................................................... 9
5.7 USB H st P rt .............................................................................................................................................. 9
5.8 Bluet th ................................................................................................................................................... 10
5.9 Cap T uch Interface .................................................................................................................................. 10
5.10 Audi ......................................................................................................................................................... 10
5.11 User Butt ns and LEDs .............................................................................................................................. 11
5.12 QSPI Flash .................................................................................................................................................. 11
5.12 Arduin Shield Interface ........................................................................................................................... 11
5.13 Break ut Headers ..................................................................................................................................... 12
Chapter 6 – B ard Lay ut .......................................................................................................................................... 13
Chapter 7 – C nfigurati n .......................................................................................................................................... 14
7.1 RS-232 Transceiver C nfigurati n ............................................................................................................. 14
Chapter 8 – C nnectivity ............................................................................................................................................ 16
8.1 USB H st P rt ............................................................................................................................................ 16
8.2 USB Device P rt......................................................................................................................................... 16
8.3 Ethernet .................................................................................................................................................... 16
8.4 LCD ............................................................................................................................................................ 17
8.4 PMOD ........................................................................................................................................................ 18
8.4 JTAG/SWD ................................................................................................................................................. 19

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8.4 UART & CAN .............................................................................................................................................. 19
Chapter 9 – Appendix A .............................................................................................................................................. 20
9.1 Pin C nnecti ns......................................................................................................................................... 20
Chapter 10 - P st Pr ducti n M dificati ns ................................................................................................................ 24
Chapter 11 - Additi nal Inf rmati n ........................................................................................................................... 25

Synergy S7G2 SK-S7G2 Starter Kit User Manual
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Rev 0.5
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Chapter 1 - Preface
Cautions
This d cument may be, wh lly r partially, subject t change with ut n tice.
All rights reserved. Duplicati n f this d cument, either in wh le r part is pr hibited with ut the written
permissi n f Renesas S luti ns C rp rati n.
Trademarks
*All brand r pr duct names used in this manual are trademarks r registered trademarks f their
respective c mpanies r rganizati ns.
Copyright
© 2015 Renesas Electr nics America, Inc. All rights reserved.
© 2015 Renesas Electr nics Eur pe Ltd. All rights reserved.
© 2015 Renesas Electr nics C rp rati n. All rights reserved.
© 2015 Renesas S luti ns C rp rati n. All rights reserved.
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Human Machine Interface
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Synergy S7G2 SK-S7G2 Starter Kit User Manual
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Chapter 2 - Overview and Purpose
2.1 Purpose
The SK-S7G2 is a Starter Kit f r the Renesas Synergy S7G2 micr c ntr ller in a 176 pin LQFP package. The b ard
pr vides easy-t -access interfaces t the peripherals f the S7G2 micr c ntr ller f r applicati n devel pment.
The SK-S7G2 b ard includes f ur header c nnect rs f r direct access t the S7G2 micr c ntr ller I/O pins.
Additi nally, the b ard c ntains c nnect rs f r USB, Ethernet, RS-232/485, CAN, and JTAG J-Link c nnect rs.
The SK-S7G2 b ard includes a 2.4” QVGA (240 x 320) TFT display with resistive-t uch screen.
The SK-S7G2 kit is supp rted by the e2studi Integrated S luti n Devel pment Envir nment (ISDE) fr m Renesas.
The SK-S7G2 kit is a Starter Kit, designed t dem nstrate the main features f the Synergy Platf rm using the S7
device. It is an initial evaluati n platf rm t determine which Devel pment Kit is appr priate f r further
devel pment f the cust mer’s pr duct.
igure 1: SK-S7G2 Kit board
2.2 In The Box
The f ll wing c mp nents are included in the SK-S7G2 kit:
- SK-S7G2 b ard
- 3 ft USB type-A t Micr -B cable f r debugger and p wer c nnecti n
- Quick Start Guide

Synergy S7G2 SK-S7G2 Starter Kit User Manual
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2.3 Block Diagram
igure 2: SK-S7G2 Kit block diagram
2.4 Hardware eatures
The SK-S7G2 kit c ntains the f ll wing hardware characteristics:
- S7G2 micr pr cess r with 176 LQFP package
- F ur 2-pin-r w c nnect rs pr vide access t all S7G2 micr pr cess r signals
- L w c st QVGA TFT t uch screen
- Three user LEDs
- Arduin Un Shield c mpatible s cket
- Tw mechanical switches c nnected directly t micr pr cess r interrupt pins
- Tw capacitive t uch-butt ns
- One capacitive slider
- Audi utput
- QSPI mem ry (8MB)
- SPI, I2C, CAN, and SCI interface
- Bluet th Smart (L w Energy) using a Renesas RL78/G1D Bluet th Smart device
2.5 Resources
The f ll wing d cuments are related t S7G2 and SK-S7G2 hardware:
- SK-S7G2 Quick Start Guide
- SK-S7G2 B ard Schematics in PDF f rmat
- SK-S7G2 B ard Design Files in Altium f rmat
- S7G2 User’s Manual: Hardware
- S7G2 Datasheet
F r pr gramming the SK-S7G2 Kit, refer t the f ll wing d cuments:
- SSP User’s Manual
- e2 studi ISDE User’s Manual
Renesas Synergy
S7G2 MCU
JLINK
DC-DC
USB
DEVICE
USB
DEVICE
USB
HOST
ETHERNET
PMODA PMODB
AUDIO
OUT
BLUETOOTHLCD
CAN RS232/485
jtag
usb
device
usb
host
power
mac
uart
audio
lcd
uartuartcan spi
USER
LEDs
USER
BUTTONS gpiosirq
QSPI
8MB
FLASH
USER
BUTTONS spiirq

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Chapter 3 - Getting Started
T start w rking with the SK-S7G2 Kit, see the Quick Start Guide included in the Kit. The Quick Start Guide pr vides
instructi ns n h w t d wnl ad the required s ftware t ls and n h w t use the t ls t run a simple
dem nstrati n applicati n, Blinky, n the b ard.
Running the dem nstrati n applicati n successfully ensures that the kit is functi nal and that the basic
c mp nents are c nnected pr perly.

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Chapter 4 – Power Supply Requirements
4.1 Power Supply
P wer is supplied t the SK-S7G2 b ard thr ugh the debug USB c nnect r (J19). The SK-S7G2 requires 5V applied
n this interface (USB standard). Once p wer is supplied, the p wer supply indicat r LED4 (green) will light up.
4.2 Power-Up Behavior
When p wer is applied t the SK-S7G2, the p wer- n reset (POR) m nit r f the S7G2 micr c ntr ller resets the
device. After reset, the mem ry fr m which the S7G2 micr c ntr ller will start pr gram executi n depends n the
J1 jumper. If it is in p siti n 1-2 (default), then it will start executi n fr m internal Flash (ROM), and if it is in 2-3
p siti n, it will start executi n in USB pr gram m de, which all ws the user t l ad a pr gram directly t the
internal micr c ntr ller flash via the USB device interface.
igure 3: CPU startup mode
The micr c ntr ller can be f rced t reset even while p wered via the J2 jumper.
igure 4: CPU reset control
4.3 Microcontroller Current
P wer c nsumpti n f the S7G2 micr c ntr ller can be measured f r the digital p wer supply f the
micr c ntr ller simply by rem ving the J31 jumper and measuring the current draw acr ss it.
igure 5: Measuring digital current consumption on S7G2 microcontroller

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P wer c nsumpti n f r the anal g supply f the S7G2 micr c ntr ller requires rem ving resist r R114 and
measuring current acr ss it.
igure 6: Measuring analog current consumption on S7G2 microcontroller

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Chapter 5 – Board Components
The main b ard c mp nents, interfaces, and c nfigurati n items are listed bel w.
5.1 On Board J-Link Debugger
The SK-S7G2 b ard features a SEGGER J-Link On-B ard debugger, accessible thr ugh J19 USB c nnect r.
Alternatively, the nb ard debugger can be bypassed by rem ving resist rs R107, R108, R109, and R110. Once
rem ved, JTAG/SWD debugging can then be d ne via the J18 header.
igure 7: On/Off-board JTAG debugging
5.2 LCD
The SK-S7G2 kit c ntains a 2.4” LCD Display with t uch screen interface. The LCD is c nnected directly t the LCD
interface f the S7G2 micr c ntr ller. The LCD display is a Ha Ran HT024K5QV50T, which uses an Ilitek ILI9341V
driver IC. The m de f perati n f the Ilitek driver is selected with R19, R20, R22, R23, R26, R27, R28 and R29, and
the default m de f perati n is the 4-wire, 8-bit serial interface.
igure 8: LCD interface mode selection
The t uch-screen is sensed via a Semtech SX8656 resistive t uch-screen c ntr ller, c nnected t the S7G2
micr c ntr ller via I2C bus.

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igure 9: Touch-screen controller
5.3 Ethernet
The SK-S7G2 kit includes a Micrel KSZ8081 10/100 Ethernet physical interface. Ethernet c nnecti n is d ne via the
RJ-45 standard c nnect r J11.
5.4 PMOD
The SK-S7G2 kit includes tw standard PMOD interfaces. The first, PMODA, available n the J12 c nnect r,
exp ses an SPI interface, three GPIO lines and an interrupt line t the S7G2 micr c ntr ller.
igure 10: PMODA interface
The sec nd, PMODB, available n the J14 c nnect r, exp ses a UART, three GPIO lines and an interrupt line t the
S7G2 micr c ntr ller.
igure 11: PMODB interface
B th PMOD interfaces can utput either 5V r 3.3V, depending n the p siti n f the J13 and J15 jumpers.
5.5 CAN, RS-232/485
The SK-S7G2 kit c ntains a UART interface (either RS-232 r RS-485) and a CAN interface. The CAN interface is
exp sed n c nnect r J7, while the UART interface is available n c nnect r J7 in RS-232 f rmat (jumper J9 has t
be in p siti ns 1-3 and 2-4), r in raw TTL f rmat in c nnect r J10 (jumper J9 has t be in p siti ns 3-5, and 4-6) t
be c nnected t an external RS-485 c nverter.

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igure 12: RS-232/485 and CAN interface
5.6 USB Device Port
The SK-S7G2 kit is equipped with a USB Full-Speed (12Mbps) device p rt n J5. The SK-S7G2 cann t be p wered via
this interface (p wer still needs t be applied via the USB device p rt J19) but c nnecti n t this p rt can be
detected since the p wer pin f this p rt is c nnected t a micr c ntr ller GPIO.
igure 13: USB device port
5.7 USB Host Port
The SK-S7G2 kit is equipped with a USB High-Speed (480Mbps) h st p rt n J6. This h st p rt can s urce current t
devices c nnected t it, and ver c nsumpti n c nditi ns n devices can be detected.

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igure 14: USB host port
5.8 Bluetooth
The SK-S7G2 kit c ntains an n-b ard Bluet th/BLE interface. This interface is implemented via a Renesas RL/78
Bluet th SMART MCU. C mmunicati n with this Bluet th L w Energy (BLE) interface is d ne via a serial
c mmunicati n interface (SCI) channel f the S7G2 MCU. Additi nally, the S7G2 MCU can p wer d wn the
Bluet th interface via a GPIO.
igure 15: BLE interface power control
5.9 Cap Touch Interface
The SK-S7G2 kit c ntains tw capacitive butt ns (S1 and S2) and ne slider (S3) c nnected t the capacitive t uch-
sensing unit (CTSU) f the S7G2 micr c ntr ller.
igure 16: Capacitive touch buttons and slider
5.10 Audio
The SK-S7G2 kit c ntains an amplified m n audi utput n a standard 3.5mm audi jack J16. The audi is
generated with the S7G2 D/A c nverter n utput DA0, and the amplificati n gain can be changed by m difying
resist r pairs R70/R71 and R73/R72.

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igure 17: Audio output
5.11 User Buttons and LEDs
The SK-S7G2 kit includes tw user butt ns directly wired t interrupt pins f the S7G2 micr c ntr ller, as well as
three generic user LEDs c nnected t micr c ntr ller GPIO pins.
igure 18: User buttons and LEDs
5.12 QSPI lash
The SK-S7G2 kit includes ne 64Mb (8MB) QSPI Flash c nnected t the QSPI interface f the micr c ntr ller.
igure 19: QSPI flash
5.12 Arduino Shield Interface
The SK-S7G2 kit includes ne Arduin Shield c mpatible interface, s that Arduin Shield b ards can expand the
SK-S7G2 functi nality. The Arduin Shield interface is implemented with the J24, J25, J26, and J27 c nnect rs.

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igure 20: Arduino Shield interface
5.13 Breakout Headers
All f the S7G2 micr c ntr ller I/O pins are accessible via f ur d uble r w 2.54mm (0.1”) pitch break ut headers
(J20 thr ugh J23).
igure 21: S7G2 microcontroller breakout headers

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Chapter 6 – Board Layout
The SK-S7G2 kit b ard measures 145mm x 120mm and the f ll wing diagram sh ws the l cati n f all the relevant
b ard c mp nents described in the pri r secti n.
igure 22: SK-S7G2 component placement

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Chapter 7 – Configuration
The SK-S7G2 kit has several c nfigurati n pti ns. These are set via jumpers. The f ll wing table lists the different
jumpers and their p siti ns.
Table 1: SK-S7G2 configuration jumpers
JUMPER FUNCTION
J1 S7G2 boot selection. If in position 1-2 (default), the MCU boots in no mal mode
(f om its ROM), if it is set on the 2-3 position, the MCU boots in USB
p og amming mode, which allows p og amming the MCU flash via the USB
po t.
J2 S7G2 MCU eset. If jumpe is set, MCU is eset, if open, MCU eset is eleased.
J8 RS-232 t ansmit eady/RS-485 eceive enable selecto jumpe . In position 1-2
(default) the RS-232 d ive ’s t ansmit eady signal (which indicates that the
t ansmit voltages a e app op iate) is connected to an MCU GPIO signal. In
position 2-3, the (exte nal) RS-485 d ive ’s eceive enable is connected to the
same MCU GPIO signal.
J9 RS-232/485 mode selection jumpe . In position 1-3 & 2-4 (default), the MCU’s
SCI3 po t is connected to the RS-232 d ive (which is exposed on the J7 po t).
In the 3-5 & 4-6 position, the MCU’s SCI3 po t is connected to the RS-485 po t
(J10) fo an off-boa d d ive .
J13 PMODA 3.3V/5V output selection. If set on the position labeled “5V”, then 5V
a e p ovided in the PMODA connecto . If set on the “3V3” labeled position,
then 3.3V a e p ovided in the PMODA inte face.
J15 PMODB 3.3V/5V output selection. If set on the position labeled “5V”, then 5V
a e p ovided in the PMODB connecto . If set on the “3V3” labeled position,
then 3.3V a e p ovided in the PMODB inte face.
J31 Powe measu ement jumpe fo S7G2. If installed, (digital) MCU cu ent goes
th ough the jumpe . If emoved, the (digital) MCU cu ent consumption will go
th ough an ammete connected ac oss pins 1 and 2 of J31.
J32 P og amming jumpe fo RL/78 Bluetooth SMART MCU, selects p og amming
sou ce pin f om S7G2 MCU. Only used fo upg ading softwa e on RL/78 MCU,
not in no mal ope ation.
J33 / J34 P og amming heade fo RL/78 Bluetooth SMART MCU. Only used fo
upg ading softwa e on RL/78 MCU, not in no mal ope ation.
7.1 RS-232 Transceiver Configuration
The SK-S7G2 kit exp ses the S7G2 MCU’s SCI (Serial C mmunicati n Interface) p rt 3 via three different electrical
interfaces: RS-232, (external) RS-485, and the MCU break ut headers. The f ll wing table summarizes the
c nfigurati n alternatives f r this p rt.
Table 2: Configuration options for RS-232/RS-485 port
OPTION J8 J9
RS-232 n J7 1-2 1-3 & 2-4
RS-485 n J10 (external c nverter) 2-3 3-5 & 4-6

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TTL interface n MCU break ut headers J20-J23 rem ved rem ved