39×9 DOTS MATRIX LED DRIVER
Integrated Silicon Solution, Inc. – www.issi.com 1 Rev. A, 09/07/2017
DESCRIPTION
The IS31FL3741 is a general purpose 39×9 LED Matrix programmed via an I2C compatible interface. Each LED can be dimmed individually with 8-bit PWM data and 8-bit 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, IS31FL3741 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 from 2.7V to 5.5V 39 Current Sink × 9 SW matrix size: drive up to
351 LEDs or 117 RGBs Individual 256 PWM control steps Individual 256 DC current steps Global 255 current setting SDB rising edge reset I2C module Interrupt and state lookup registers Individual open and short error detect function De-ghost QFN-60 (7mm×7mm) package QUICK START
Figure 1: Photo of IS31FL3741 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 IS31FL3741 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) Connect 3V and P2. 2) Connect SDA and P1. 3) Connect SCL and P3. 4) Connect SDB and P4 5) Connect PVCC and SDB. 6) Turn on the power supply/Plug in the Micro USB
Pay attention to the supply current. If the current exceeds 1A, please check for circuit fault.
EVALUATION BOARD OPERATION
The IS31FL3741 evaluation board has three animation display modes. Press K1 to switch configurations.
1) Rainbow wave#1 2) Rainbow wave#2 3) Rain 4) Visor
Note: IS31FL3741 solely controls the FxLED function on the evaluation board.
ORDERING INFORMATION
Part No. Temperature Range Package
IS31FL3741-QFLS4-EB -40°C to +125°C (Industrial) QFN-60, 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.
39×9 DOTS MATRIX LED DRIVER
Integrated Silicon Solution, Inc. – www.issi.com 2 Rev. A, 09/07/2017
SOFTWARE SUPPORT
P2 and 3V default setting is closed (jumper on). If it is open (no jumper), the on-board MCU will configure its own I2C/SDB/ADDR pins to High Impedance status so an external source can driver the I2C/SDB signals to control the IS31FL3741 LED driver.
The ADDR pin is pulled high via R6 setting the device address of IS31FL3741 to 0x60.
GND
SDASCL
SDB
VCC
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 IS31FL3741 test firmware (sketch) from the ISSI website http://www.issi.com/US/product-analog-fxled-drivershtml.
1) Open P2 and 3V. 2) Open PVCC and SDB. 3) Connect the 5 pins from Arduino board to
IS31FL3741 EVB: a) Arduino 5V pin to IS31FL3741 EVB PVCC. b) Arduino GND to IS31FL3741 EVB GND. c) Arduino SDA (A4) to IS31FL3741 EVB P1. d) Arduino SCL (A5) to IS31FL3741 EVB P3. e) If Arduino use 3.3V MCU VCC, connect
3.3V to IS31FL3741 EVB SDB, if Arduino use 5.0V MCU VCC, connect 5.0V to EVB SDB. (Arduino UNO is 5.0V, so SDB=5.0V)
4) 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.
5) Run the Arduino code as appendix I. 6) In EVB code, the ADDR pin is pulled low via
100k, so the device address is 0x60. When P1~P4 are disconnect, the ADDR pin can be changed by connecting the ADDR as follows: a) ADDR=VCC, device address=0x66. b) ADDR=SCL, device address=0x62. c) ADDR=SDA, device address=0x64.
Please refer to the datasheet to get more information about IS31FL3741.
39×9 DOTS MATRIX LED DRIVER
Integrated Silicon Solution, Inc. – www.issi.com 3 Rev. A, 09/07/2017
GND
3V
SDASCL
INTB
USB_DM2USB_DP2DIOGND3V
GND
10nF
C7
VIN1
GND2
EN3
BP 4
VOUT5
U2
LDO
1uFC9
3V
CLK
1uFC4
3V
0.1uF
C2
0.1uF
C1
MCU
3V Power
100KR6
4.7KR1
K1
1uFC6
0.1uF
C3
10KR46
1234567891011121314151617181920
CON4GNDGND
CLKDIO3VINTB
SDASCL
ADDRGNDSCLSDA
PVCC
SDB
3V
SDB
Micro USB
VCC1
USB_DM2
USB_DP3
NC4
GND5
Con5
10uF
C10
PVCC
22RR4822RR49
USB_DM2USB_DP2
1.5K
R473V
USB_DMUSB_DP
10uF
C11
D1
DFL240D2
DFL240
IO
PVCC
SDASCLINTBSDB
ADDR
3V
10KR5
PVCC
PVCC
4.7KR2100KR3100KR4
SW01SW02SW03SW04SW05SW06
CS01CS02CS03CS04CS05CS06CS07CS08CS09CS10CS11CS12CS13CS14CS15CS16CS17CS18CS19CS20CS21CS22CS23CS24CS25CS26CS27CS28CS29CS30
GND
PVCCPVCCPVCC
GND
SDB
OSCO 2
OSCI4
GND1
GND3Y1
8M
33PC8
33P
C5
OSCO
OSCI
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_CH2N27
PB15/SPI2_MOSI/TIM1_CH3N 28PA8/TIM1_CH1/MCO
29PA9/USART1_TX/TIM1_CH230
PA10/USART1_RX/TIM1_CH3 31PA11/CANRX/USBDM/TIM1_CH4
32PA12/CANTX/USBDP/TIM1_ETR33
PA13/JTMS/SWDIO 34VSS_2
35VDD_236PA14/JTCK/SWCLK37
PA15/JTDI 38PB3/JTDO
39PB4/JNTRST40
PB5 41PB6/I2C1_SCL/TIM4_CH1
42PB7/I2C1_SDA/TIM4_CH243
BOOT0 44PB8/TIM4_CH3
45PB9/TIM4_CH446
VSS_3 47VDD_3 48
U3
STM32F103C8T6
10RCS3010RCS2910RCS2810RCS2710RCS2610RCS2510RCS2410RCS2310RCS2210RCS2110RCS2010RCS1910RCS1810RCS1710RCS1610RCS1510RCS1410RCS1310RCS0210RCS1110RCS1010RCS0910RCS0810RCS0710RCS0610RCS0510RCS0410RCS0310RCS0210RCS01 SINK01
SINK02SINK03SINK04SINK05SINK06SINK07SINK08SINK09SINK10SINK11SINK12SINK13SINK14SINK15SINK16SINK17SINK18SINK19SINK20SINK21SINK22SINK23SINK24SINK25SINK26SINK27SINK28SINK29SINK30
RSET
3V
SW01SW02 SW03SW04 SW05SW06
SINK01SINK02SINK03SINK04SINK05SINK06SINK07
SINK08SINK09SINK10SINK11SINK12SINK13SINK14SINK15SINK16SINK17SINK18SINK19SINK20SINK21SINK22SINK23
SINK24SINK25SINK26SINK27SINK28SINK29SINK30
CS341CS352
CS36 3CS37
4CS385
CS39 6
INTB7
ADDR8
SDA9
SCL10
SDB11
GND12
RSET13
AVCC14
PVCC115
SW1 16SW2
17SW318
SW4 19SW5
20SW621
SW7 22SW8 23SW9
24
PVCC225
CS126CS227
CS3 28CS4
29CS530
CS6 31CS7
32CS833CS934
CS10 35
GND36
CS1137CS1238
CS13 39CS14
40CS1541
CS16 42CS17
43CS1844
CS19 45CS20 46CS21
47CS2248
CS23 49CS24
50CS2551
CS26 52CS27
53CS2854
GND55
CS29 56CS30
57CS3158
CS32 59CS33 60
GND61
U1
IS31FL3741_QFN61
SW07SW08SW09
10RCS3110RCS3210RCS3310RCS3410RCS3510RCS3610RCS3710RCS3810RCS39
CS31CS32CS33CS34CS35CS36CS37CS38CS39
SINK31SINK32SINK33SINK34SINK35SINK36SINK37SINK38SINK39
SINK31SINK32SINK33SINK34SINK35SINK36SINK37SINK38SINK39
IS31FL3741_QFN60
1 23 45 67 89 1011 1213 1415 16
CON1
Header 8X2
1 23 45 67 89 1011 1213 1415 16
CON2
Header 8X2
1 23 45 67 89 1011 1213 1415 16
CON3
Header 8X2
SW07SW08 SW09
12
P1
Header 2
12
P3
Header 2
12
P4
Header 2
SDASDA
SCLSCL
SDBSDB
12
P2
Header 2
PA0
PA03V
10KR50
SW1 SW2 SW3 SW4 SW5SW6
CS1CS2CS3
CS4CS5CS6
CS7CS8CS9
CS10CS11CS12
CS13CS14CS15
CS16CS17CS18
CS19CS20CS21
CS22CS23CS24
CS25CS26CS27
CS28CS29CS30
LD1RGB4P
SW1SW2SW3SW4SW5SW6
CS1CS2 CS3CS4 CS5CS6 CS7
CS8 CS9CS10 CS11CS12 CS13CS14 CS15CS16 CS17CS18 CS19CS20 CS21CS22 CS23
CS24 CS25CS26 CS27CS28 CS29CS30
1 23 45 67 89 1011 1213 1415 16
P1
Header 8X2
1 23 45 67 89 1011 1213 1415 16
P3
Header 8X2
1 23 45 67 89 1011 1213 1415 16
P2
Header 8X2
SW7 SW8 SW9
CS31CS32CS33
CS34CS35CS36
CS37CS38CS39
CS31CS32
SW7SW8SW9
CS33CS34 CS35CS36 CS37CS38 CS39
LD2RGB4P
LD3RGB4P
LD4RGB4P
LD5RGB4P
LD6RGB4P
LD7RGB4P
LD8RGB4P
LD9RGB4P
LD10RGB4P
LD11RGB4P
LD12RGB4P
LD13RGB4P
LD14RGB4P
LD15RGB4P
LD16RGB4P
LD17RGB4P
LD18RGB4P
LD19RGB4P
LD20RGB4P
LD21RGB4P
LD22RGB4P
LD23RGB4P
LD24RGB4P
LD25RGB4P
LD26RGB4P
LD27RGB4P
LD28RGB4P
LD29RGB4P
LD30RGB4P
LD31RGB4P
LD32RGB4P
LD33RGB4P
LD34RGB4P
LD35RGB4P
LD36RGB4P
LD37RGB4P
LD38RGB4P
LD39RGB4P
LD40RGB4P
LD41RGB4P
LD42RGB4P
LD43RGB4P
LD44RGB4P
LD45RGB4P
LD46RGB4P
LD47RGB4P
LD48RGB4P
LD49RGB4P
LD50RGB4P
LD51RGB4P
LD52RGB4P
LD53RGB4P
LD54RGB4P
LD55RGB4P
LD56RGB4P
LD57RGB4P
LD58RGB4P
LD59RGB4P
LD60RGB4P
LD61RGB4P
LD62RGB4P
LD63RGB4P
LD64RGB4P
LD65RGB4P
LD66RGB4P
LD67RGB4P
LD68RGB4P
LD69RGB4P
LD70RGB4P
LD71RGB4P
LD72RGB4P
LD73RGB4P
LD74RGB4P
LD75RGB4P
LD76RGB4P
LD77RGB4P
LD78RGB4P
LD79RGB4P
LD80RGB4P
LD81RGB4P
LD82RGB4P
LD83RGB4P
LD84RGB4P
LD85RGB4P
LD86RGB4P
LD87RGB4P
LD88RGB4P
LD89RGB4P
LD90RGB4P
LD91RGB4P
LD92RGB4P
LD93RGB4P
LD94RGB4P
LD95RGB4P
LD96RGB4P
LD97RGB4P
LD98RGB4P
LD99RGB4P
LD100RGB4P
LD101RGB4P
LD102RGB4P
LD103RGB4P
LD104RGB4P
LD105RGB4P
LD106RGB4P
LD107RGB4P
LD108RGB4P
LD109RGB4P
LD110RGB4P
LD111RGB4P
LD112RGB4P
LD113RGB4P
LD114RGB4P
LD115RGB4P
LD116RGB4P
LD117RGB4P
LED Array
Figure 3: IS31FL3741 Application Schematic
39×9 DOTS MATRIX LED DRIVER
Integrated Silicon Solution, Inc. – www.issi.com 4 Rev. A, 09/07/2017
BILL OF MATERIALS
Name Symbol Description Qty Supplier Part No.
LED Driver U1 Matrix LED Driver 1 ISSI IS31FL3741
LDO U2 Reduced voltage 1 SGMICRO SGM2019-3.3V
MCU U3 Microcontroller 1 STM STM32F103C8T6
Diode LD1~LD117 Blue LED, SMD 117 Everlight 9-237/R6GHBHC-A01/2T
Diode D1,D2 Diode, SMD 2 DIODES DFLS240
Crystal Y1 Crystal, 8MHz 1 JB HC-49S
Resistor R1,R2 RES,4.7k,1/16W,±5%,SMD 2 Yageo RC0603JR-074K7L
Resistor R3,R4,R6 RES,100K,1/16W,±5%,SMD 3 Yageo RC0603JR-07100KL
Resistor R5,R50,R46 RES,10k,1/16W,±5%,SMD 3 Yageo RC0603JR-0710KL
Resistor R47 RES,1.5k,1/16W,±5%,SMD 1 Yageo RC0603JR-071K5L
Resistor R48,R49 RES,22R,1/16W,±5%,SMD 2 Yageo RC0603JR-0722RL
Resistor CS01~CS39 RES,10R,1/16W,±5%,SMD 39 Yageo RC0603JR-0710RL
Capacitor C1,C2,C3 CAP,0.1µF,16V,±20%,SMD 3 Yageo CC0603KKX7R9BB104
Capacitor C4,C6,C9 CAP,1µF,16V,±20%,SMD 3 Yageo CC0603KKX7R9BB105
Capacitor C5,C8 CAP,33pF,16V,±20%,SMD 2 Yageo CC0603KKX7R9BB330
Capacitor C7 CAP,10nF,16V,±20%,SMD 1 Yageo CC0603KKX7R9BB103
Capacitor C10,C11 CAP,10uF,16V, ±20%,SMD 2 Yageo CC0805KKX7R9BB106
Button K1 Button SMD 1
Bill of Materials, refer to Figure 3 above.
39×9 DOTS MATRIX LED DRIVER
Integrated Silicon Solution, Inc. – www.issi.com 5 Rev. A, 09/07/2017
0 0
00
2
1
2
1
2
1
2
1
1
1
0
0
0
0
2
4
6
8
10
12
1
3
5
7
9
11
1314
1516
1234567891011121314151617181920
24681012
135791113
14
15
16
2
4
6
8
10
12
1
3
5
7
9
11
1314
1516
1
2
4
3
Figure 4: Board Component Placement Guide - Top Layer
0 0
00
2
1
2
1
2
1
2
1
2
1
1
1
0
0
0
0
2
4
6
8
10
12
1
3
5
7
9
11
1314
1516
1234567891011121314151617181920
24681012
135791113
14
15
16
2
4
6
8
10
12
1
3
5
7
9
11
1314
1516
1
2
4
3
Figure 5: Board PCB Layout - Top Layer
39×9 DOTS MATRIX LED DRIVER
Integrated Silicon Solution, Inc. – www.issi.com 6 Rev. A, 09/07/2017
0 0
00
2
1
2
1
2
1
2
1
1
1
0
0
0
0
2
4
6
8
10
12
1
3
5
7
9
11
1314
1516
1234567891011121314151617181920
24681012
135791113
14
15
16
2
4
6
8
10
12
1
3
5
7
9
11
1314
1516
1
2
4
3
Figure 6: Board Component Placement Guide - Bottom Layer
0 0
00
12
2
1
2
1
2
1
2
1
21
2 1
2 1
2
1
2 1
21
2
1
2
12
1 2
1
1
1
0
0
0
0
2
4
6
8
10
12
1
3
5
7
9
11
1314
1516
1234567891011121314151617181920
24681012
135791113
14
15
16
2
4
6
8
10
12
1
3
5
7
9
11
1314
1516
2 1
2 1
1
2
4
3
21 21
21
21
21
21
21
21
21
21
21
21
21
21
2 1 21
2
1
212 1
2
1
2 1
21
2 1
21
2 12 1
2 12 1
2 12 1
2 12 1
2 1
2 12 1
2 12 1
2
1
2
1
2
1
2
1
2 1
2 1
2
1
2
1
2
1
2 1
2 121
61
1
2
4
3
Figure 7: Board PCB Layout - Bottom Layer
39×9 DOTS MATRIX LED DRIVER
Integrated Silicon Solution, Inc. – www.issi.com 7 Rev. A, 09/07/2017
Figure 8: LED Board Component Placement Guide - Top Layer
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
2 3
1 4
Figure 9: LED Board PCB Layout - Top Layer
39×9 DOTS MATRIX LED DRIVER
Integrated Silicon Solution, Inc. – www.issi.com 8 Rev. A, 09/07/2017
Figure 10: LED Board Component Placement Guide - Bottom Layer
15
13
11
9
7
5
3
2
4
6
8
10
12
14
16
1
1
16 14 12 10 8 6 4 2
3579111315
15
13
11
9
7
5
3
2
4
6
8
10
12
14
16
1
Figure 11: LED Board PCB Layout - Bottom Layer
Copyright © 2017 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
39×9 DOTS MATRIX LED DRIVER
Integrated Silicon Solution, Inc. – www.issi.com 9 Rev. A, 09/07/2017
REVISION HISTORY
Revision Detail Information Date
A Initial release 2017.09.07
39×9 DOTS MATRIX LED DRIVER
Integrated Silicon Solution, Inc. – www.issi.com 10 Rev. A, 09/07/2017
APPENDIX Ⅰ: IS31FL3741 Arduino Test Code V01A
#include<Wire.h>
#include<avr/pgmspace.h>
#define Addr_GND 0x60
#define R 0xFF
#define G 0x00
#define B 0xFF
uint8_t i,j;
const PROGMEM byte PWM_Gama64[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 setup() {
Wire.begin();
Wire.setClock(1000000);//I2C 1MHz
Init_3741(R, G, B);
}
void loop() {
IS31FL3741_Test_mode1();//breath mode
}
void IS_IIC_WriteByte(uint8_t Dev_Add,uint8_t Reg_Add,uint8_t Reg_Dat)
{
Wire.beginTransmission(Dev_Add/2); // transmit to device IS31FL373x
Wire.write(Reg_Add); // sends regaddress
Wire.write(Reg_Dat); // sends regaddress
Wire.endTransmission(); // stop transmitting
}
void Init_3741(uint8_t Rdata, uint8_t Gdata, uint8_t Bdata)
{
IS_IIC_WriteByte(Addr_GND,0xfe,0xc5);//unlock
IS_IIC_WriteByte(Addr_GND,0xfD,0x02);//write page 2
for(i=2;i<0xB4;i+=3)
39×9 DOTS MATRIX LED DRIVER
Integrated Silicon Solution, Inc. – www.issi.com 11 Rev. A, 09/07/2017
{
IS_IIC_WriteByte(Addr_GND,i,Rdata);//R LED Scaling
}
for(i=1;i<0xB4;i+=3)
{
IS_IIC_WriteByte(Addr_GND,i,Gdata);//G LED Scaling
}
for(i=0;i<0xB4;i+=3)
{
IS_IIC_WriteByte(Addr_GND,i,Bdata);//B LED Scaling
}
IS_IIC_WriteByte(Addr_GND,0xfe,0xc5);//unlock
IS_IIC_WriteByte(Addr_GND,0xfD,0x03);//write page 3
for(i=2;i<0xAB;i+=3)
{
IS_IIC_WriteByte(Addr_GND,i,Rdata);//R LED Scaling
}
for(i=1;i<0xAB;i+=3)
{
IS_IIC_WriteByte(Addr_GND,i,Gdata);//G LED Scaling
}
for(i=0;i<0xAB;i+=3)
{
IS_IIC_WriteByte(Addr_GND,i,Bdata);//B LED Scaling
}
IS_IIC_WriteByte(Addr_GND,0xfe,0xc5);//unlock
IS_IIC_WriteByte(Addr_GND,0xfD,0x00);//write page 0
for(i=0;i<0xB4;i++)
{
IS_IIC_WriteByte(Addr_GND,i,0x00);//write all PWM set 0x00
}
IS_IIC_WriteByte(Addr_GND,0xfe,0xc5);//unlock
IS_IIC_WriteByte(Addr_GND,0xfD,0x01);//write page 1
for(i=0;i<0xAB;i++)
{
IS_IIC_WriteByte(Addr_GND,i,0x00);//write all PWM set 0x00
} //init all the PWM data to 0
IS_IIC_WriteByte(Addr_GND,0xfe,0xc5);//unlock
IS_IIC_WriteByte(Addr_GND,0xfD,0x04);//write page 4
IS_IIC_WriteByte(Addr_GND,0x01,0x7F);//global current
IS_IIC_WriteByte(Addr_GND,0x00,0x01);//normal operation
}
void IS31FL3741_Test_mode1(void)//
39×9 DOTS MATRIX LED DRIVER
Integrated Silicon Solution, Inc. – www.issi.com 12 Rev. A, 09/07/2017
{
IS_IIC_WriteByte(Addr_GND,0xFD,0x00);//write frist frame
for (j=0;j<64;j++)//all LED ramping up
{
IS_IIC_WriteByte(Addr_GND,0xfe,0xc5);//unlock
IS_IIC_WriteByte(Addr_GND,0xfD,0x00);//write page 0
for(i=0;i<0xB4;i++)
{
IS_IIC_WriteByte(Addr_GND,i,pgm_read_byte_near(&PWM_Gama64[j]));//set all PWM
}
IS_IIC_WriteByte(Addr_GND,0xfe,0xc5);//unlock
IS_IIC_WriteByte(Addr_GND,0xfD,0x01);//write page 1
for(i=0;i<0xAB;i++)
{
IS_IIC_WriteByte(Addr_GND,i,pgm_read_byte_near(&PWM_Gama64[j]));//set all PWM
}
delay(10);//10ms
}
delay(1000); //keep on 1s
for (j=63;j>0;j--)//all LED ramping down
{
IS_IIC_WriteByte(Addr_GND,0xfe,0xc5);//unlock
IS_IIC_WriteByte(Addr_GND,0xfD,0x00);//write page 0
for(i=0;i<0xB4;i++)
{
IS_IIC_WriteByte(Addr_GND,i,pgm_read_byte_near(&PWM_Gama64[j-1]));//set all PWM
}
IS_IIC_WriteByte(Addr_GND,0xfe,0xc5);//unlock
IS_IIC_WriteByte(Addr_GND,0xfD,0x01);//write page 1
for(i=0;i<0xAB;i++)
{
IS_IIC_WriteByte(Addr_GND,i,pgm_read_byte_near(&PWM_Gama64[j-1]));//set all PWM
}
delay(10);//10ms
}
delay(500); //keep off 0.5s
}