is31fl3745-cls4 eval board guide rev.aams.issi.com/ww/pdf/is31fl3745-cls4-eval-board-guide...î...

18×8 DOTS MATRIX LED DRIVER EVALUATION BOARD GUIDE

Integrated Silicon Solution, Inc. – ams.issi.com 1 Rev. A, 03/11/2019

DESCRIPTION

The IS31FL3745 is a general purpose 18×n (n=1~8) LED Matrix programmed via 1MHz I2C compatible interface. Each LED can be dimmed individually with 8-bit PWM data and 8-bit DC scaling data which allowing 256 steps of linear PWM dimming and 256 steps of DC current adjustable level.

Additionally each LED open and short state can be detected, IS31FL3745 store the open or short information in Open-Short Registers. The Open-Short Registers allowing MCU to read out via I2C compatible interface. Inform MCU whether there are LEDs open or short and the locations of open or short LEDs.

FEATURES

Supply voltage range: 2.7V to 5.5V 18 Current sink (Maximum) Support 18 × n (n=1~8) LED matrix configurations Individual 256 PWM control steps Individual 256 DC current steps Global 256 current setting SDB rising edge reset I2C module Programmable H/L logic:1.4/0.4, 2.4/0.6 29kHz PWM frequency State lookup registers Individual open and short error detect function 180 degree phase delay operation to reduce power

noise De-Ghost Cascade for synchronization of chips QUICK START

Figure 1: Photo of IS31FL3745-CLS4 Evaluation Board

RECOMMENDED EQUIPMENT

5.0V, 2A power supply

ABSOLUTE MAXIMUM RATINGS

≤ 5.5V power supply

Caution: Do not exceed the conditions listed above, otherwise the board will be damaged.

PROCEDURE

The IS31FL3745 evaluation board is fully assembled and tested. Follow the steps listed below to verify board operation.

Caution: Do not turn on the power supply until all connections are completed.

1) Short JP1 (OPEN=EXT CTRL) to enable the control of on board MCU (default status).

2) Connect the 5V DC power to VCC / GND in CON4, or plug in the USB power input to micro-USB (CON5).

3) Turn on the power supply, pay attention to the supply current. If the current exceeds 1A, please check for circuit fault.

EVALUATION BOARD OPERATION

The IS31FL3745 evaluation board has six display modes. Press MODE button to switch configurations.

1) (Default mode) Rainbow #1. 2) Rainbow #2. 3) Purple breath. 4) Change colors. 5) White. Note: IS31FL3745 solely controls the FxLED function on the evaluation board.

ORDERING INFORMATION

Part No. Temperature Range Package

IS31FL3745-CLS4-EB -40°C to +125°C (Industrial) WLCSP-36, Lead-free

Table 1: Ordering Information

For pricing, delivery, and ordering information, please contacts ISSI’s analog marketing team at [email protected] or (408) 969-6600



SOFTWARE SUPPORT

EXT CTRL (JP1) default setting is close circuit. If it is set to open, the on-board MCU will configure the I2C pins and SDB pin to High Impedance and sleep. External I2C and SDB signals can be connected to TP4 to control the IS31FL3745 LED driver.

GND

SDASCL

SDBVCC

Figure 2: Photo of Arduino UNO connected to Evaluation Board

The steps listed below are an example using the Arduino for external control.

The Arduino hardware consists of an Atmel microcontroller with a bootloader allowing quick firmware updates. First download the latest Arduino Integrated Development Environment IDE (1.6.12 or greater) from www.arduino.cc/en/Main/Software. Also download the Wire.h library from www.arduino.cc/en/reference/wire and verify that pgmspace.h is in the directory …program Files(x86)/Arduino/hardware/tools/avr/avr/include/avr/. Then download the latest IS31FL3745 test firmware (sketch) from the ISSI website http://ams.issi.com/US/product-analog-fxled-driver.shtml.

1) Open EXT CTRL (JP1). 2) Connect the 5 pins from Arduino board to

IS31FL3745 EVB: a) Arduino 5V pin to IS31FL3745 EVB VCC. b) Arduino GND to IS31FL3745 EVB GND. c) Arduino SDA (A4) to IS31FL3745 EVB SDA. d) Arduino SCL (A5) to IS31FL3745 EVB SCL. e) If Arduino use 3.3V MCU VCC, connect

3.3V to IS31FL3745 EVB SDB, if Arduino use 5.0V MCU VCC, connect 5.0V or 3.3V to EVB SDB. (Arduino UNO MCU VCC is 5V, so SDB can be 5V or 3.3V)

3) Use the test code in appendix Ⅰ or download the

test firmware (sketch) from the ISSI website, a .txt file and copy the code to Arduino IDE, compile and upload to Arduino.

4) Run the Arduino code for desired mode setting by Arduino code.

Please refer to the datasheet to get more information about IS31FL3745.



GND

3V

SDASCL

INTB

USB_DM2USB_DP2DIOGND3V

GND

VIN1

GND2

EN3

BP 4

VOUT5

U2

LDO

3V

CLK

3V

MCU

3V PowerGNDGND

3V

DIO

SYNC

SCL

AD1

PVCC

3V

SDB

Micro USB

VCC1

USB_DM2

USB_DP3

NC4

GND5

Con5

PVCC

USB_DM2USB_DP2

3V

USB_DMUSB_DP

D1

DFL240D2

DFL240

IO

PVCC

SDASCLSDB

AD1

3V

PVCC

SW08SW07SW06SW05SW04SW03

CS01CS02CS03CS04CS05CS06CS07CS08CS09CS10CS11CS12CS13CS14CS15CS16CS17CS18

GND

PVCCPVCCPVCC

GND

SDB

OSCIOSCO

PVCC

VBAT1

PC13-ANTI_TAMP2

PC14-OSC32_IN3

PC15-OSC32_OUT4

OSC_IN5

OSC_OUT6

NRST7

VSSA8

VDDA9

PA0-WKUP/ADC_IN0/TIM2_CH1_ETR10

PA1/ADC_IN1/TIM2_CH211

PA2/USART2_TX/ADC_IN2/TIM2_CH312

PA3/USART2_RX/ADC_IN3/TIM2_CH413

PA4/SPI1_NSS/ADC_IN414

PA5/SPI1_SCK/ADC_IN515

PA6/SPI1_MISO/ADC_IN6/TIM3_CH116

PA7/SPI1_MOSI/ADC_IN7/TIM3_CH217

PB0/ADC_IN8/TIM3_CH318

PB1/ADC_IN9/TIM3_CH419

PB2/BOOT120

PB10/I2C2_SCL/USART3_TX21

PB11/I2C2_SDA/USART3_RX22

VSS_123

VDD_124 PB12/SPI2_NSS/TIM1_BKIN 25PB13/SPI2_SCK/TIM1_CH1N 26PB14/SPI2_MISO/TIM1_CH2N

27PB15/SPI2_MOSI/TIM1_CH3N28PA8/TIM1_CH1/MCO 29

PA9/USART1_TX/TIM1_CH2 30PA10/USART1_RX/TIM1_CH3 31PA11/CANRX/USBDM/TIM1_CH4

32PA12/CANTX/USBDP/TIM1_ETR33PA13/JTMS/SWDIO 34

VSS_2 35VDD_2 36PA14/JTCK/SWCLK

37PA15/JTDI 38PB3/JTDO 39

PB4/JNTRST 40PB541PB6/I2C1_SCL/TIM4_CH142PB7/I2C1_SDA/TIM4_CH2 43

BOOT0 44PB8/TIM4_CH3 45PB9/TIM4_CH4

46VSS_347VDD_3 48

U3

STM32F103C8T6

SINK01SINK02SINK03SINK04SINK05SINK06SINK07SINK08SINK09SINK10SINK11SINK12SINK13SINK14SINK15SINK16SINK17SINK18

RSET

3V

SW01

SW02

SW03

SW04

SW05

SW06

SINK09

SINK10SINK11SINK12SINK13SINK14SINK15SINK16SINK17SINK18

SW02SW01

SW07

SW08

PA0

MOSIMISOSCKCS

OSCO

OSCI OSCO2

OSCI 4GND1

GND 3

Y1 8M

GNDSDASCL

SDBMISO

1SDB

2

MOSI3 5V 4

SCK5 SCL 6

CS7 SDA 8

PA09

GND10

TP4

PVCC

MISOMOSISCKCSPA0

SINK01SINK02SINK03SINK04SINK05SINK06SINK07SINK081 2

3 45 67 89 1011 1213 1415 16

CON1

C1

100nF

C2

100nF

C333p

C433p

C51μF

C61μF

C7

10nF

C81μF

C9A10μF

R1 4.7KR2 4.7K

R4

100K

R510K

R6100K

CS01 20R

R3100K

AD2

PVCC

SDAAD2

PVCC

12

JP1

GNDPA0

R9 1KR8 100K 3V

R1010K

R11 22RR12 22R

R13

1.5K

1 23 45 67 89 1011 1213 1415 16

CON2

1 23 45 67 89 1011 1213 1415 16

CON3

SYNCCS02CS03CS04CS05CS06CS07CS08CS09CS10CS11CS12CS13CS14CS15CS16CS17CS18

CS01

CLK

12345678910111213141516171819

CON4

CS02 20RCS03 20RCS04 20RCS05 20RCS06 20RCS07 20RCS08 20RCS09 20RCS10 20RCS11 20RCS12 20RCS13 20RCS14 20RCS15 20RCS16 20RCS17 20RCS18 20R

PVCCA3

VDDF5

SDAD3

SCLE3

SDBE5

RSETF3

AD1D4

AD2E4

SYNCF2

GNDF4

CS1 B2CS2 B3CS3

C3CS4C2CS5 D2

CS6 D1CS7 E2CS8

E1CS9F1CS10 F6

CS11 E6CS12 D5CS13

D6CS14 C4CS15 C6CS16 C5CS17

B4CS18B5

SW1 A2SW2 A4SW3

A1SW4A5SW5 B1

SW6 A6SW7C1SW8B6

U1

31FL3745

K1

C9B10μF

*Note1

Figure 3: IS31FL3745 Application Schematic

D37RGB4P

D43RGB4P

D38RGB4P

D44RGB4P

SW1 SW2 SW3 SW4 SW5 SW6

CS1CS2CS3

CS4CS5CS6

CS7CS8CS9

CS10CS11CS12

CS13CS14CS15

CS16CS17CS18

D39RGB4P

D45RGB4P

D40RGB4P

D46RGB4P

D41RGB4P

D47RGB4P

D6RGB4P

D12RGB4P

D18RGB4P

D24RGB4P

D30RGB4P

D36RGB4P

D5RGB4P

D11RGB4P

D17RGB4P

D23RGB4P

D29RGB4P

D35RGB4P

D4RGB4P

D10RGB4P

D16RGB4P

D22RGB4P

D28RGB4P

D34RGB4P

D3RGB4P

D9RGB4P

D15RGB4P

D21RGB4P

D27RGB4P

D33RGB4P

D2RGB4P

D8RGB4P

D14RGB4P

D20RGB4P

D26RGB4P

D32RGB4P

D1RGB4P

D7RGB4P

D13RGB4P

D19RGB4P

D25RGB4P

D31RGB4P

SW1

SW2

SW3

SW4

SW5

SW6

CS1CS2 CS3CS4 CS5CS6 CS7CS8 CS9

CS10 CS11CS12 CS13CS14 CS15CS16 CS17CS18

1 23 45 67 89 1011 1213 1415 16

P1

Header 8X2

1 23 45 67 89 1011 1213 1415 16

P2

Header 8X2

1 23 45 67 89 1011 1213 1415 16

P3

Header 8X2

SW7

SW8

SW9

SW10

SW11

D42RGB4P

D48RGB4P

SW7 SW8 Figure 4: FxLED_6x8_ARRAY Schematic



BILL OF MATERIALS

IS31FL3745

Name Symbol Description Qty Supplier Part No.

LED Driver U1 Matrix LED Driver 1 ISSI IS31FL3745

LDO U2 3.0V LDO 1 SGMICRO SGM2019-3.0YN5G

MCU U3 Microcontroller 1 STM STM32F103C8T6

Crystal Y1 Crystal, 8MHz 1 HLX HC-49S

Diode D1,D2 Diode, SMD 2 DIODES DFLS240

Resistor

CS01,CS02,CS04,CS05,CS07,CS08,CS10,CS11,CS13,CS14,CS16,CS17

RES,20R,1/10W,±5%,SMD 12 Yageo RC0603JR-0720RL

Resistor CS03,CS06,CS09,CS12,CS15,CS18

RES,20R,1/10W,±5%,SMD (Note 1)

6 Yageo RC0603JR-0720RL

Resistor R1,R2 RES,4.7k,1/10W,±5%,SMD 2 Yageo RC0603JR-074K7L

Resistor R3,R4,R6,R8 RES,100k,1/10W,±5%,SMD 4 Yageo RC0603JR-07100KL

Resistor R5,R10 RES,10k,1/10W,±5%,SMD 2 Yageo RC0603JR-0710KL

Resistor R9 RES,1k,1/10W,±5%,SMD 1 Yageo RC0603JR-071KL

Resistor R11, R12 RES,22R,1/10W,±5%,SMD 2 Yageo RC0603JR-0722RL

Resistor R13 RES,1.5k,1/10W,±5%,SMD 1 Yageo RC0603JR-071K5L

Capacitor C1,C2 CAP,100nF,16V,±20%,SMD 2 Yageo CC0603MRX7R7BB104

Capacitor C3,C4 CAP,33pF,50V,±5%,SMD 2 Yageo CQ0603JRNPO9BN360

Capacitor C5,C6,C8 CAP, 1µF,16V,±10%,SMD 1 Yageo CC0603KRX7R7BB105

Capacitor C7 CAP,10nF,16V,±10%,SMD 1 Yageo CC0603KPX7R7BB103

Capacitor C9A,C9B CAP,10µF,16V,±20%,SMD 2 Yageo CC0805KKX7R7BB106

Button K1 Button SMD 1

Bill of Materials, refer to Figure 3 above.

FxLED 6x11 ARRAY

Name Symbol Description Qty Supplier Part No.

Diode D1~D48 RGB LED, SMD 48 Everlight 9-237/R6GHBHC-A01/2T

Bill of Materials, refer to Figure 4 above.

Note 1: The value of these resistors on the evaluation board is 20Ω. For PVCC=5V and red LED application, prefer 51Ω for these resistors as shown in datasheet Figure 1.



0

00

0123456789101112131415161719 18

1

2

4

3

2 4 6 8 10 12

1 3 5 7 9 11 13

14

15

16

24681012

135791113

14

15

16

1

1

0

0

0

0

2 4 6 8 10 12

1 3 5 7 9 11 13

14

15

16

2 1

8

6

4

2

10

1

3

5

7

9

Figure 4: Board Component Placement Guide - Top Layer

0

00

0123456789101112131415161719 18

1

2

4

3

2 4 6 8 10 12

1 3 5 7 9 11 13

14

15

16

24681012

135791113

14

15

16

1

1

0

0

0

0

2 4 6 8 10 12

1 3 5 7 9 11 13

14

15

16

2 1

8

6

4

2

10

1

3

5

7

9

12

Figure 5: Board PCB Layout - Top Layer



0

00

0123456789101112131415161719 18

1

2

4

3

2 4 6 8 10 12

1 3 5 7 9 11 13

14

15

16

24681012

135791113

14

15

16

1

1

0

0

0

0

2 4 6 8 10 12

1 3 5 7 9 11 13

14

15

16

2 1

8

6

4

2

10

1

3

5

7

9

Figure 6: Board Component Placement Guide - Bottom Layer

0

00

0123456789101112131415161719 18

12

1

2

4

3

1 2

1

2

1

2

1

2

1 2

1

21

21

2

1

2

1 2

1

2

1

21

2

2 4 6 8 10 12

1 3 5 7 9 11 13

14

15

16

1

2

1

2

12

1

2

1 2

1

2

24681012

135791113

14

15

16

1

1

0

0

0

0

2 4 6 8 10 12

1 3 5 7 9 11 13

14

15

16

34

21

1

2

1

2

1

2

1

2

1

2

1

2

1

2

1

2

1

2

1

2

1

2

1

2

1

2

1

2

1

2

1

2

1

2

1

2

2 1

8

6

4

2

10

1

3

5

7

9

1

2

1

21 2

Figure 7: Board PCB Layout - Bottom Layer



Figure 8: Board Component Placement Guide - Top Layer

23

14

23

14

23

14

23

14

23

14

23

14

23

14

23

14

23

14

23

14

23

14

23

14

23

14

23

14

23

14

23

14

23

14

23

14

23

14

23

14

23

14

23

14

23

14

23

14

23

14

23

14

23

14

23

14

23

14

23

14

23

14

23

14

23

14

23

14

23

14

23

14

23

14

23

14

23

14

23

14

23

14

23

14

23

14

23

14

23

14

23

14

23

14

23

14

Figure 9: Board PCB Layout - Top Layer



Figure 10: Board Component Placement Guide - Bottom Layer

1513119753

2 4 6 8 10 12 14 16

1 1513119753

2 4 6 8 10 12 14 16

1

1

16 14 12 10 8 6 4 2

3579111315

Figure 11: Board PCB Layout - Bottom Layer

Copyright © 2019 Integrated Silicon Solution, Inc. All rights reserved. ISSI reserves the right to make changes to this specification and its products at any time without notice. ISSI assumes no liability arising out of the application or use of any information, products or services described herein. Customers are advised to obtain the latest version of this device specification before relying on any published information and before placing orders for products. Integrated Silicon Solution, Inc. does not recommend the use of any of its products in life support applications where the failure or malfunction of the product can reasonably be expected to cause failure of the life support system or to significantly affect its safety or effectiveness. Products are not authorized for use in such applications unless Integrated Silicon Solution, Inc. receives written assurance to its satisfaction, that: a.) the risk of injury or damage has been minimized; b.) the user assume all such risks; and c.) potential liability of Integrated Silicon Solution, Inc is adequately protected under the circumstances



REVISION HISTORY

Revision Detail Information Data

A Initial Release 2019.03.11



APPENDIX Ⅰ: IS31FL3745 Arduino Test Code V01A

#include<Wire.h> #include<avr/pgmspace.h> #define Addr_GND_GND 0x40 void setup() { // put your setup code here, to run once: pinMode(13, OUTPUT);//ARDUINO BOARD LED control Wire.begin(); Wire.setClock(400000);//I2C 400kHz } byte PWM_Gamma64[64]= { 0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07, 0x08,0x09,0x0b,0x0d,0x0f,0x11,0x13,0x16, 0x1a,0x1c,0x1d,0x1f,0x22,0x25,0x28,0x2e, 0x34,0x38,0x3c,0x40,0x44,0x48,0x4b,0x4f, 0x55,0x5a,0x5f,0x64,0x69,0x6d,0x72,0x77, 0x7d,0x80,0x88,0x8d,0x94,0x9a,0xa0,0xa7, 0xac,0xb0,0xb9,0xbf,0xc6,0xcb,0xcf,0xd6, 0xe1,0xe9,0xed,0xf1,0xf6,0xfa,0xfe,0xff }; void IS_IIC_WriteByte(uint8_t Dev_Add,uint8_t Reg_Add,uint8_t Reg_Dat)//writing an LED register { Wire.beginTransmission(Dev_Add/2); Wire.write(Reg_Add); // sends regaddress Wire.write(Reg_Dat); // sends regaddress Wire.endTransmission(); // stop transmitting } void loop() { // put your main code here, to run repeatedly: mainloop(); } void Init3745(void) { int i,j; IS_IIC_WriteByte(Addr_GND_GND,0xfe,0xc5); IS_IIC_WriteByte(Addr_GND_GND,0xfd,0x00);//page 0 for(i=0;i<0x91;i++) { IS_IIC_WriteByte(Addr_GND_GND,i,0);//PWM } IS_IIC_WriteByte(Addr_GND_GND,0xfe,0xc5); IS_IIC_WriteByte(Addr_GND_GND,0xfd,0x01);//page 1 for(i=1;i<0x91;i++) { IS_IIC_WriteByte(Addr_GND_GND,i,0xff);//scaling } IS_IIC_WriteByte(Addr_GND_GND,0xfe,0xc5); IS_IIC_WriteByte(Addr_GND_GND,0xfd,0x02);//page 2 IS_IIC_WriteByte(Addr_GND_GND,0x02,0x70); IS_IIC_WriteByte(Addr_GND_GND,0x01,0xFF);//GCC IS_IIC_WriteByte(Addr_GND_GND,0x00,0x01);// } void mainloop(void)// { int i,j; Init3745(); digitalWrite(13, LOW); // turn the ARDUINO BOARD LED on (HIGH is the voltage level) while(1) { //BLUE digitalWrite(13, HIGH); // turn the ARDUINO BOARD LED on (HIGH is the voltage level) IS_IIC_WriteByte(Addr_GND_GND,0xfe,0xc5); IS_IIC_WriteByte(Addr_GND_GND,0xfd,0x00);//page 0



for(j=0;j<64;j++) { for(i=1;i<0x91;i=i+3) { IS_IIC_WriteByte(Addr_GND_GND,i,PWM_Gamma64[j]);//PWM} } } delay(500); digitalWrite(13, LOW); // turn the ARDUINO BOARD LED OFF (HIGH is the voltage level) IS_IIC_WriteByte(Addr_GND_GND,0xfe,0xc5); IS_IIC_WriteByte(Addr_GND_GND,0xfd,0x00);//page 0 for(j=63;j>=0;j--) { for(i=1;i<0x91;i=i+3) { IS_IIC_WriteByte(Addr_GND_GND,i,PWM_Gamma64[j]);//PWM} } } delay(500); //GREEN digitalWrite(13, HIGH); // turn the ARDUINO BOARD LED on (HIGH is the voltage level) IS_IIC_WriteByte(Addr_GND_GND,0xfe,0xc5); IS_IIC_WriteByte(Addr_GND_GND,0xfd,0x00);//page 0 for(j=0;j<64;j++) { for(i=2;i<0x91;i=i+3) { IS_IIC_WriteByte(Addr_GND_GND,i,PWM_Gamma64[j]);//PWM} } } delay(500); digitalWrite(13, LOW); // turn the ARDUINO BOARD LED OFF (HIGH is the voltage level) IS_IIC_WriteByte(Addr_GND_GND,0xfe,0xc5); IS_IIC_WriteByte(Addr_GND_GND,0xfd,0x00);//page 0 for(j=63;j>=0;j--) { for(i=2;i<0x91;i=i+3) { IS_IIC_WriteByte(Addr_GND_GND,i,PWM_Gamma64[j]);//PWM} } } delay(500); //RED digitalWrite(13, HIGH); // turn the ARDUINO BOARD LED on (HIGH is the voltage level) IS_IIC_WriteByte(Addr_GND_GND,0xfe,0xc5); IS_IIC_WriteByte(Addr_GND_GND,0xfd,0x00);//page 0 for(j=0;j<64;j++) { for(i=3;i<0x91;i=i+3) { IS_IIC_WriteByte(Addr_GND_GND,i,PWM_Gamma64[j]);//PWM} } } delay(500); digitalWrite(13, LOW); // turn the ARDUINO BOARD LED OFF (HIGH is the voltage level) IS_IIC_WriteByte(Addr_GND_GND,0xfe,0xc5); IS_IIC_WriteByte(Addr_GND_GND,0xfd,0x00);//page 0 for(j=63;j>=0;j--) { for(i=3;i<0x91;i=i+3) { IS_IIC_WriteByte(Addr_GND_GND,i,PWM_Gamma64[j]);//PWM} } } delay(500); //WHITE digitalWrite(13, HIGH); // turn the ARDUINO BOARD LED on (HIGH is the voltage level) IS_IIC_WriteByte(Addr_GND_GND,0xfe,0xc5);



IS_IIC_WriteByte(Addr_GND_GND,0xfd,0x00);//page 0 for(j=0;j<64;j++) { for(i=1;i<0x91;i++) { IS_IIC_WriteByte(Addr_GND_GND,i,PWM_Gamma64[j]);//PWM} } } delay(500); digitalWrite(13, LOW); // turn the ARDUINO BOARD LED OFF (HIGH is the voltage level) IS_IIC_WriteByte(Addr_GND_GND,0xfe,0xc5); IS_IIC_WriteByte(Addr_GND_GND,0xfd,0x00);//page 0 for(j=63;j>=0;j--) { for(i=1;i<0x91;i++) { IS_IIC_WriteByte(Addr_GND_GND,i,PWM_Gamma64[j]);//PWM} } } delay(500); } }

is31fl3745-cls4 eval board guide rev.aams.issi.com/ww/pdf/is31fl3745-cls4-eval-board-guide...î...

Documents