mbed_library_study_meeting_v1.0.key

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1 mbed _mbed version 1.0, 07-Nov Tedd OKANO mbed (^^; 1 mbed

TEDD OKANO https://twitter.com/tedd_okano 10 I 2 C http://developer.mbed.

2 TEDD OKANO 10 I 2 C

3 mbed mbed.org 3 mbed mbed.org mbed

$printf( 0, "Hello world!\r" ); lcd.printf( 1, "pi = %.6f\r", 3.14159265 ); http://developer.mbed.$

4 #include "mbed.h" #include "SB1602E.h" SB1602E lcd( p28, p27 ); // SDA, SCL int main() { lcd.printf( 0, "Hello world!\r" ); lcd.printf( 1, "pi = %.6f\r", ); 4 mbed-sdk(mbed )

5 mbed-sdk (mbed ) C/C++ Programs Runtime Platforms (Java ME Embedded,.NET MF, elua, etc) mbed Components Accelerometer, GPS, Wifi, Cellular, Compass,... mbed SDK Runtime, Memory Model, Peripheral APIs, STDIO, RTOS, Platform features MCU Vendor Driver Libraries Toolchain C libraries CMSIS-CORE RTOS (GPIO ) (UART I2C..) ( )

6 / 6

7 GUI 7

8 8

9 HelloWorld 9 HelloWorld

10 .. 10 ( )

11 11

12 LM75B : I 2 C 12 2 I C LM75B LM75B mbed.org

13 13

14 14 mbed.org

15 Revisions (Revision History) Commit (Commit Changes) ( ) Format Code 15 mbed.org ( )

16 Revisions Switch.. 16 Rivision History (1) (2) Revisions (3) (4) Switch

17 #include "mbed.h" // LM75B I2C slave address #define ADDRESS_LM75B 0x90 // LM75B registers #define LM75B_Conf 0x01 #define LM75B_Temp 0x00 #define LM75B_Tos 0x03 #define LM75B_Thyst 0x02 I2C i2c( p28, p27 ); void init( void ); float read_temp( void ); int main() { init(); while(1) { printf( "temp = %7.3f\r\n", read_temp() ); wait( 1 ); read_temp() ( ) void init( void ) { char command[ 2 ]; command[ 0 ] = LM75B_Conf; command[ 1 ] = 0x00; 0x90 0x01 0x00 i2c.write( ADDRESS_LM75B, command, 2 ); float read_temp( void ) { char command[ 2 ]; command[ 0 ] = LM75B_Temp; 0x90 0x00 2 i2c.write( ADDRESS_LM75B, command, 1 ); // Send command string i2c.read( ADDRESS_LM75B, command, 2 ); // read two bytes data return ( (float)( (command[ 0 ] << 8) command[1] ) / ); 17 mbed-sdk C I 2 C mbed-sdk API _Hello ( )

18 _Hello ( ) test_lm75b test_lm75b_hello LM75B test_lm75b ( ) 18

19 19 C++

20 20

21 .cpp.h 21.cpp.h.h.cpp main.cpp main ( )

22 .. / Export( ) / 22 New Library New FIle

$init( void ); float read_temp( void ); int main() { init(); while(1) { printf( "temp = %7.$

23 #include "mbed.h" // LM75B I2C slave address #define ADDRESS_LM75B 0x90 // LM75B registers #define LM75B_Conf 0x01 #define LM75B_Temp 0x00 #define LM75B_Tos 0x03 #define LM75B_Thyst 0x02 I2C i2c( p28, p27 ); void init( void ); float read_temp( void ); int main() { init(); while(1) { printf( "temp = %7.3f\r\n", read_temp() ); wait( 1 ); void init( void ) { char command[ 2 ]; command[ 0 ] = LM75B_Conf; command[ 1 ] = 0x00; i2c.write( ADDRESS_LM75B, command, 2 ); float read_temp( void ) { char command[ 2 ]; command[ 0 ] = LM75B_Temp; main.cpp i2c.write( ADDRESS_LM75B, command, 1 ); // Send command string i2c.read( ADDRESS_LM75B, command, 2 ); // read two bytes data return ( (float)( (command[ 0 ] << 8) command[1] ) / ); #include "mbed.h" #include "test_lm75b.h" test_lm75b temp( p28, p27 ); int main() #include "mbed.h" { while(1) { // LM75B I2C slave address printf( "temp = %7.3f\r\n", temp.read() #define ); ADDRESS_LM75B 0x90 wait( 1 ); #include "test_lm75b.h" test_lm75b::test_lm75b( PinName sda, PinName scl ) : i2c( sda, scl ) { init(); test_lm75b::~test_lm75b() { void test_lm75b::init( void ) { char command[ 2 ]; command[ 0 ] = LM75B_Conf; command[ 1 ] = 0x00; i2c.write( ADDRESS_LM75B, command, 2 ); float test_lm75b::read( void ) { char command[ 2 ]; main.cpp // LM75B registers #define LM75B_Conf 0x01 #define LM75B_Temp 0x00 #define LM75B_Tos 0x03 #define LM75B_Thyst 0x02 test_lm75b.h class test_lm75b { public: test_lm75b( PinName sda, PinName scl ); ~test_lm75b(); void init( void ); float read( void ); private: I2C i2c; ; test_lm75b.cpp command[ 0 ] = LM75B_Temp; i2c.write( ADDRESS_LM75B, command, 1 ); // Send command string i2c.read( ADDRESS_LM75B, command, 2 ); // read two bytes data return ( (float)( (command[ 0 ] << 8) command[1] ) / ); 23 3 main.cpp.h.cpp

24 #include "mbed.h" // LM75B I2C slave address #define ADDRESS_LM75B 0x90 test_lm75b.h // LM75B registers #define LM75B_Conf 0x01 #define LM75B_Temp 0x00 #define LM75B_Tos 0x03 #define LM75B_Thyst 0x02 class test_lm75b { public: test_lm75b( PinName sda, PinName scl ); ~test_lm75b(); void init( void ); float read( void ); private: I2C i2c; ; I 2 C #include "test_lm75b.h" test_lm75b::test_lm75b( PinName sda, PinName scl ) : i2c( sda, scl ) { init(); test_lm75b::~test_lm75b() { void test_lm75b::init( void ) { char command[ 2 ]; command[ 0 ] = LM75B_Conf; command[ 1 ] = 0x00; i2c.write( ADDRESS_LM75B, command, 2 ); float test_lm75b::read( void ) { char command[ 2 ]; command[ 0 ] = LM75B_Temp; test_lm75b.cpp i2c.write( ADDRESS_LM75B, command, 1 ); // Send command string i2c.read( ADDRESS_LM75B, command, 2 ); // read two bytes data return ( (float)( (command[ 0 ] << 8) command[1] ) / ); 24.h ( ) (public) (private).cpp init() read()

25 .. main() main() 25 I 2 C main ( )

26 26 C++

27 27

$h 3 0x90 class test_lm75b { public: test_lm75b( PinName sda, PinName scl, char address = ADDRESS_LM75B ); ~test_lm75b(); void init( void ); float read( void ); operator float( void ); private: I2C$

28 #include "mbed.h" // LM75B I2C slave address #define ADDRESS_LM75B 0x90 // LM75B registers #define LM75B_Conf 0x01 #define LM75B_Temp 0x00 #define LM75B_Tos 0x03 #define LM75B_Thyst 0x02 test_lm75b.h 3 0x90 class test_lm75b { public: test_lm75b( PinName sda, PinName scl, char address = ADDRESS_LM75B ); ~test_lm75b(); void init( void ); float read( void ); operator float( void ); private: I2C i2c; char adr; ; test_lm75b.cpp... test_lm75b::test_lm75b( PinName sda, PinName scl, char address ) : i2c( sda, scl ), adr( address ) { init();... 28

29 main.cpp #include "mbed.h" #include "test_lm75b.h" test_lm75b temp0( p28, p27, 0x90 ); test_lm75b temp1( p28, p27, 0x92 ); int main() { while(1) { printf( "temp0 = %7.3f\r\n", temp0.read() ); printf( "temp1 = %7.3f\r\n", temp1.read() ); wait( 1 ); =0x90 =0x x90 0x92

30 I2C 30

31 #include "mbed.h" #include "test_lm75b.h" test_lm75b temp0( p28, p27, 0x90 ); test_lm75b temp1( p28, p27, 0x92 ); Q A 2 I2C mbed SDK int main() { while(1) { printf( "temp0 = %7.3f\r\n", temp0.read() ); printf( "temp1 = %7.3f\r\n", temp1.read() ); wait( 1 ); 31 (I2C ) mbed-sdk

32 test_lm75b test_lm75b I2C I2C 400kHz 100kHz (..) 32 2 ( I C)

33 test_lm75b test_lm75b I2C test_lm75b I2C 1 33

34 #include "mbed.h" #include "test_lm75b.h" test_lm75b tmp[] = { test_lm75b( p28, p27, 0x90 ), test_lm75b( p28, p27, 0x92 ), test_lm75b( p28, p27, 0x93 ), test_lm75b( p28, p27, 0x94 ), test_lm75b( p28, p27, 0x96 ), test_lm75b( p28, p27, 0x98 ), test_lm75b( p28, p27, 0x9A ), test_lm75b( p28, p27, 0x9C ) ; int main() { for ( int i = 0; i < 4; i++ ) { printf( "temp = %7.3f\r\n", (float)(tmp[ i ]) ); wait( 1 );.. #include "mbed.h" #include "test_lm75b.h" I2C i2c( p28, p27 ); test_lm75b tmp[] = { test_lm75b( i2c, 0x90 ), test_lm75b( i2c, 0x92 ), test_lm75b( i2c, 0x93 ), test_lm75b( i2c, 0x94 ), test_lm75b( i2c, 0x96 ), test_lm75b( i2c, 0x98 ), test_lm75b( i2c, 0x9A ), test_lm75b( i2c, 0x9C ) ; int main() { i2c.frequency( 10 * 1000 ); while(1) { for ( int i = 0; i < 4; i++ ) { printf( "temp = %7.3f\r\n, (float)(tmp[ i ]) ); wait( 1 ); I 2 C 34.. ( )..

35 #include "mbed.h" #include "test_lm75b.h" I2C i2c( p28, p27 ); test_lm75b temp( i2c ); int main() { float t; i2c.frequency( 400 * 1000 ); while(1) { t = temp; printf( "temp = %7.3f\r\n", t ); wait( 1 ); main.cpp 35 I2C main

36 I2C i2c( p28, p27 ); test_lm75b temp( i2c ); int main() { float t; i2c.frequency( 400 * 1000 ); while(1) { t = temp; printf( "temp = %7.3f\r\n", t ); wait( 1 ); main.cpp class test_lm75b { public: test_lm75b( I2C i2c_obj, char address = ADDRESS_LM75B ); ~test_lm75b(); void init( void ); float read( void ); operator float( void ); private: I2C i2c; char adr; ; test_lm75b.h #include "test_lm75b.h" test_lm75b::test_lm75b( I2C i2c_obj, char address ) : i2c( i2c_obj ), adr( address ) { init(); test_lm75b.cpp 36

37 orz 400kHz 100kHz 37 I2C orz

38 test_lm75b test_lm75b I2C I2C I2C orz 38

39 I2C i2c( p28, p27 ); test_lm75b temp( i2c ); int main() { float t; i2c.frequency( 400 * 1000 ); while(1) { t = temp; printf( "temp = %7.3f\r\n", t ); wait( 1 ); main.cpp class test_lm75b { public: test_lm75b( I2C i2c_obj, char address = ADDRESS_LM75B ); ~test_lm75b(); void init( void ); float read( void ); operator float( void ); private: I2C i2c; char adr; ; test_lm75b.h #include "test_lm75b.h" test_lm75b::test_lm75b( I2C i2c_obj, char address ) : i2c( i2c_obj ), adr( address ) { init(); test_lm75b.cpp test_lm75b I2C m( )m 39 10

40 40

41 I2C i2c( p28, p27 ); test_lm75b temp( i2c ); int main() { float t; i2c.frequency( 400 * 1000 ); while(1) { t = temp; printf( "temp = %7.3f\r\n", t ); wait( 1 ); main.cpp class test_lm75b { public: test_lm75b( I2C &i2c_obj, char address = ADDRESS_LM75B ); ~test_lm75b(); void init( void ); float read( void ); operator float( void ); private: I2C &i2c; char adr; ; test_lm75b.h #include "test_lm75b.h" test_lm75b::test_lm75b( I2C &i2c_obj, char address ) : i2c( i2c_obj ), adr( address ) { init(); test_lm75b.cpp I2C 41 main I2C I2C

42 100kHz 400kHz 42

43 43

44 2 I2C C++ (^^) 44 2

45 I2C I2C I2C I2C I2C 45

46 ... class test_lm75b { public: test_lm75b( PinName sda, PinName scl, char address = ADDRESS_LM75B ); test_lm75b( I2C &i2c_obj, char address = ADDRESS_LM75B ); ~test_lm75b(); void init( void ); float read( void ); operator float( void ); private: I2C *i2c_p; I2C &i2c; char adr; ; I2C test_lm75b.h 2... test_lm75b::test_lm75b( PinName sda, PinName scl, char address ) { : i2c_p( new I2C( sda, scl ) ), i2c( *i2c_p ), adr( address ) init(); test_lm75b::test_lm75b( I2C &i2c_obj, char address ) : i2c_p( NULL ), i2c( i2c_obj ), adr( address ) { init(); test_lm75b::~test_lm75b() { if ( NULL!= i2c_p ) delete i2c_p;... I2C test_lm75b.cpp I2C I2C I2C 46 ( C++..) I2C i2c_p I2C i2c_p NULL I2C i2c_p!= NULL i2c_p == NULL

47 #include "mbed.h" #include "test_lm75b.h" test_lm75b temp0( p28, p27 ); I2C i2c( p28, p27 ); test_lm75b temp1( i2c ); int main() { float t0; float t1; i2c.frequency( 400 * 1000 ); while(1) { t0 = temp0; t1 = temp1; printf( "temp = %7.3f, %7.3f\r\n", t0, t1 ); wait( 1 ); main.cpp 47 temp0 I2C 100kHz temp1 400kHz

48 48..

49 49

50 API.h Doxygen 50 mbed.org.h Doxygen

51 51 Doxygen API

52 * * i2c.frequency( 400 * 1000 ); * while(1) { * t0 = temp0; * t1 = temp1; * printf( "temp = %7.3f, %7.3f\r\n", t0, t1 ); * wait( 1 ); * * */ class test_lm75b { public: /** Create a test_lm75b instance connected to specified I2C pins with specified address * sda I2C-bus SDA pin scl I2C-bus SCL pin address (option) I2C-bus slave address (default: 0x90) */ test_lm75b( PinName sda, PinName scl, char address = ADDRESS_LM75B ); /** Create a test_lm75b instance connected to specified I2C pins with specified address * i2c_obj I2C object (instance) address (option) I2C-bus slave address (default: 0x90) */ test_lm75b( I2C &i2c_obj, char address = ADDRESS_LM75B ); /** Destractor */ ~test_lm75b(); /** Initialization */ void init( void ); /** Read temperature * value of degree Celsius (in float) */ float read( void ); /** Read temperature * the object returns the read value */ operator float( void ); private: I2C *i2c_p; I2C &i2c; char adr; ; 52

53 DOXYGEN 53 URL ( (.h #define ) )

54 54

55 / OK 55

56 / ( ) 56 / OK Public (Unlisted) URL Apache2

57 57

58 CQ Apache2 58 ( (History ) )

59 59

60 Wiki Wiki Wiki 60 / Edit repository homepage Wiki

61 Wiki Editing tips Full Wiki syntax Preview Wiki HTML web 61 Editing tips Wiki Full Wiki Syntax

62 Wiki Q&A 62 Wiki mbed.org Q&A.. Wiki

63 63 mbed Cookbook mbed

64 Add a component HelloWorld 64 (HelloWorld ) Add a component

65 URL URL Wiki 65

66 Tested platforms 66 Tested platforms mbed

67 ( ) Hello Hello 67

68 68

69 .. Pull ( ) 69..

70 (1) MARY-VB 70

71 SPI MARY-VB MARY-VB MARY-OB MARY-OB 9 / MARY-VB 8 / SPI 71 MARMEX-VB OLED SPI 8 OLED 9

72 MARMEX-OB MARMEX-VB SPI SPI MARMEX_OB_oled( PinName mosi, PinName sclk, PinName cs, PinName rst, PinName power_pin ) : NokiaLCD( mosi, sclk, cs, rst, NokiaLCD::LCD6100 ), _power_pin( power_pin ) {... _spi.format( 9 ); _spi.frequency( SPI_FREQUENCY );... 9 / MARMEX_VB::MARMEX_VB( PinName SPI_mosi, PinName SPI_miso, PinName SPI_sck, PinName SPI_cs, PinName cam_reset, PinName I2C_sda, PinName I2C_scl ) : _spi( SPI_mosi, SPI_miso, SPI_sck ), _cs( SPI_cs ), _reset( cam_reset ), _i2c( I2C_sda, I2C_scl ) {... _spi.format( 8 ); _spi.frequency( SPI_FREQUENCY );... _spi.write() 9 / 8 / 8 / 72 OLED ( ) SPI SDK

73 SPI SPI disply_spi( p5, p6, p7 ); SPI camera_spi( p5, p6, p7); DigitalOut disply_cs( p20 ); DigitalOut camera_cs( p22 );... disply_spi.format( 9 ); camera_spi.format( 8 );... disply_cs = 0; disply_spi.write( data_for_disply ); disply_cs = 1;... camera_cs = 0; camera_spi.write( data_for_camera ); camera_cs = 1;... MARMEX-VB SDK 73 SPI 2 write

75 app I2C instance processor MCU I 2 C master I 2 C slave I 2 C slave I 2 C bus I 2 C slave app SPI instance SPI instance SPI processor MCU SPI master SPI slave SPI slave SPI bus

76 (2) ( ) 76 /

77 MARMEX-VB CQ

78 (^^; ISP 78

79 (3) mbed LPC1768 (mbed ) (^^; ARM 79 mbed (mbed LPC1768)

80 (4) 80 mbed (mbed LPC1768)

81 40pin LPCXpresso Arduino pin LPCXpresso Arduino..

82 .. LPCXpresso mbed 82 LPCXpresso mbed

83 (5) (MCU ) 83 mbed MCU MCU mbed-sdk MCU

84 #if ( LINE_READ_OPT == USING_SSP_FIFO ) #define FIFO_DEPTH 4 #if defined( SSP_AUTO_SELECTION ) #if defined( TARGET_MBED_LPC1768 ) #define SPI_PORT_SELECTOR LPC_SSP1 #elif defined( TARGET_LPC11U35_501 ) defined( TARGET_LPC11U24_401 ) #define SPI_PORT_SELECTOR LPC_SSP0 #endif #elif defined( SSP_USE_SSP0 ) #define SPI_PORT_SELECTOR LPC_SSP0 #elif defined( SSP_USE_SSP1 ) #define SPI_PORT_SELECTOR LPC_SSP1 #else #error when using FIFO option for the optimization, choose one of definition SSP_USE_SSP0.. #endif // #if defined( SSP_AUTO_SELECTION ) char reg = COMMAND_READ CAMERA_DATA_REGISTER COMMAND_ADDR_INCREMENT; int n; if ( _read_order_change ) { _cs = 0; for(n = FIFO_DEPTH; n > 0; n--) { SPI_PORT_SELECTOR->DR = reg; do { while (!(SPI_PORT_SELECTOR->SR & 0x4)); *p = (SPI_PORT_SELECTOR->DR & 0xFF); if (n++ < (n_of_pixels << 1) - FIFO_DEPTH) SPI_PORT_SELECTOR->DR = reg; CMSIS ( ) while (!(SPI_PORT_SELECTOR->SR & 0x4)); *p++ = (SPI_PORT_SELECTOR->DR << 8); if (n++ < (n_of_pixels << 1) - FIFO_DEPTH) SPI_PORT_SELECTOR->DR = reg; while(n < (n_of_pixels << 1)); _cs = 1; mbed

85 (6) 85..

86 86 Yamamoto \(^^)/

87 87 /

88 Review Close 88

89 (7) 89 mbed.org mbed.org Twitter

90 (8) 90 mbed.org C++ (^^)

91 (9) mbed-sdk 91 mbed-sdk

92 mbed.org mbed-sdk Github

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Java updated Java 2003.07.14 updated 3 1 Java 5 1.1 Java................................. 5 1.2 Java..................................... 5 1.3 Java................................ 6 1.3.1 Java.......................