The official mbed C/C SDK provides the software platform and libraries to build your applications.

Dependents:   SeeedTouchLCD

Fork of mbed by mbed official

(01.May.2014) started sales! http://www.switch-science.com/catalog/1717/

(13.March.2014) updated to 0.5.0

This is a pin conversion PCB from mbed 1768/11U24 to arduino UNO.

  • So if you have both mbed and arduino shields, I guess you would be happy with such a conversion board :)

Photos

  • Board photo vvv /media/uploads/k4zuki/mbedshield050.brd.png
  • Schematic photo vvv /media/uploads/k4zuki/mbedshield050.sch.png
  • Functionality photo vvv /media/uploads/k4zuki/mbedshieldfunc.jpg

Latest eagle files

PCB >> /media/uploads/k4zuki/mbedshield050.brd
SCH >> /media/uploads/k4zuki/mbedshield050.sch

BIG changes from previous version

  1. Ethernet RJ45 connector is removed.
    1. http://mbed.org/components/Seeed-Ethernet-Shield-V20/ is the biggest hint to use Ethernet!
  2. Most ALL of components can be bought at Akizuki http://akizukidenshi.com/
    1. But sorry, they do not send parts to abroad
  3. Pinout is changed!
arduino0.4.00.5.0
D4p12p21
D5p11p22
MOSI_nonep11
MISO_nonep12
SCK_nonep13

This design has bug(s)

  1. I2C functional pin differs between 1768 and 11U24.

Fixed bugs here

  1. MiniUSB cable cannot be connected on mbed if you solder high-height electrolytic capacitor on C3.
    1. http://akizukidenshi.com/catalog/g/gP-05002/ is the solution to make this 100% AKIZUKI parts!
  2. the 6-pin ISP port is not inprimented in version 0.4.0
    1. it will be fixed in later version 0.4.1/0.4.2/0.5.0 This has beenfixed

I am doing some porting to use existing arduino shields but it may faster if you do it by yourself...

you can use arduino PinName "A0-A5,D0-D13" plus backside SPI port for easier porting.

To do this you have to edit PinName enum in

  • "mbed/TARGET_LPC1768/PinNames.h" or
  • "mbed/TARGET_LPC11U24/PinNames.h" as per your target mbed.

here is the actual list: This list includes define switch to switch pin assignment

part_of_PinNames.h

        USBTX = P0_2,
        USBRX = P0_3,

//from here mbeDshield mod
        D0=p27,
        D1=p28,
        D2=p14,
        D3=p13,
#ifdef MBEDSHIELD_050
        MOSI_=p11,
        MISO_=p12,
        SCK_=p13,
        D4=p21,
        D5=p22,
#else
        D4=p12,
        D5=p11,
#endif
        D6=p23,
        D7=p24,
        D8=p25,
        D9=p26,
        D10=p8,
        D11=p5,
        D12=p6,
        D13=p7,
        A0=p15,
        A1=p16,
        A2=p17,
        A3=p18,
        A4=p19,
        A5=p20,
        SDA=p9,
        SCL=p10,
//mbeDshield mod ends here
        // Not connected
        NC = (int)0xFFFFFFFF
Committer:
simon
Date:
Thu Jun 17 16:23:14 2010 +0000
Revision:
21:3944f1e2fa4f
Parent:
20:029aa53d7323
Child:
22:9114680c05da
* CAN fixes
* Serial Interrupt
* I2C low level routines

Who changed what in which revision?

UserRevisionLine numberNew contents of line
simon.ford@mbed.co.uk 0:82220227f4fa 1 /* mbed Microcontroller Library - I2C
rolf.meyer@arm.com 11:1c1ebd0324fa 2 * Copyright (c) 2007-2009 ARM Limited. All rights reserved.
rolf.meyer@arm.com 11:1c1ebd0324fa 3 * sford
rolf.meyer@arm.com 11:1c1ebd0324fa 4 */
simon.ford@mbed.co.uk 0:82220227f4fa 5
simon.ford@mbed.co.uk 0:82220227f4fa 6 #ifndef MBED_I2C_H
simon.ford@mbed.co.uk 0:82220227f4fa 7 #define MBED_I2C_H
simon.ford@mbed.co.uk 0:82220227f4fa 8
rolf.meyer@arm.com 11:1c1ebd0324fa 9 #include "platform.h"
rolf.meyer@arm.com 11:1c1ebd0324fa 10 #include "PinNames.h"
rolf.meyer@arm.com 11:1c1ebd0324fa 11 #include "PeripheralNames.h"
simon.ford@mbed.co.uk 0:82220227f4fa 12 #include "Base.h"
simon.ford@mbed.co.uk 0:82220227f4fa 13
simon.ford@mbed.co.uk 0:82220227f4fa 14 namespace mbed {
simon.ford@mbed.co.uk 0:82220227f4fa 15
simon.ford@mbed.co.uk 0:82220227f4fa 16 /* Class: I2C
simon.ford@mbed.co.uk 0:82220227f4fa 17 * An I2C Master, used for communicating with I2C slave devices
rolf.meyer@arm.com 11:1c1ebd0324fa 18 *
rolf.meyer@arm.com 11:1c1ebd0324fa 19 * Example:
simon 20:029aa53d7323 20 * > // Read from I2C slave at address 0x62
rolf.meyer@arm.com 11:1c1ebd0324fa 21 * >
rolf.meyer@arm.com 11:1c1ebd0324fa 22 * > #include "mbed.h"
rolf.meyer@arm.com 11:1c1ebd0324fa 23 * >
rolf.meyer@arm.com 11:1c1ebd0324fa 24 * > I2C i2c(p28, p27);
rolf.meyer@arm.com 11:1c1ebd0324fa 25 * >
rolf.meyer@arm.com 11:1c1ebd0324fa 26 * > int main() {
rolf.meyer@arm.com 12:f63353af7be8 27 * > int address = 0x62;
rolf.meyer@arm.com 11:1c1ebd0324fa 28 * > char data[2];
rolf.meyer@arm.com 12:f63353af7be8 29 * > i2c.read(address, data, 2);
rolf.meyer@arm.com 11:1c1ebd0324fa 30 * > }
simon.ford@mbed.co.uk 0:82220227f4fa 31 */
simon.ford@mbed.co.uk 0:82220227f4fa 32 class I2C : public Base {
simon.ford@mbed.co.uk 0:82220227f4fa 33
simon.ford@mbed.co.uk 0:82220227f4fa 34 public:
simon.ford@mbed.co.uk 0:82220227f4fa 35
simon 20:029aa53d7323 36 enum RxStatus {
simon 20:029aa53d7323 37 NoData
simon 20:029aa53d7323 38 , MasterGeneralCall
simon 20:029aa53d7323 39 , MasterWrite
simon 20:029aa53d7323 40 , MasterRead
simon 20:029aa53d7323 41 };
simon 20:029aa53d7323 42
simon 21:3944f1e2fa4f 43 enum Acknowledge {
simon 21:3944f1e2fa4f 44 NoACK = 0
simon 21:3944f1e2fa4f 45 , ACK = 1
simon 21:3944f1e2fa4f 46 };
simon 21:3944f1e2fa4f 47
rolf.meyer@arm.com 11:1c1ebd0324fa 48 /* Constructor: I2C
rolf.meyer@arm.com 11:1c1ebd0324fa 49 * Create an I2C Master interface, connected to the specified pins
rolf.meyer@arm.com 11:1c1ebd0324fa 50 *
rolf.meyer@arm.com 11:1c1ebd0324fa 51 * Variables:
rolf.meyer@arm.com 11:1c1ebd0324fa 52 * sda - I2C data line pin
rolf.meyer@arm.com 11:1c1ebd0324fa 53 * scl - I2C clock line pin
rolf.meyer@arm.com 11:1c1ebd0324fa 54 */
rolf.meyer@arm.com 11:1c1ebd0324fa 55 I2C(PinName sda, PinName scl, const char *name = NULL);
simon.ford@mbed.co.uk 0:82220227f4fa 56
rolf.meyer@arm.com 11:1c1ebd0324fa 57 /* Function: frequency
rolf.meyer@arm.com 11:1c1ebd0324fa 58 * Set the frequency of the I2C interface
rolf.meyer@arm.com 11:1c1ebd0324fa 59 *
rolf.meyer@arm.com 11:1c1ebd0324fa 60 * Variables:
rolf.meyer@arm.com 11:1c1ebd0324fa 61 * hz - The bus frequency in hertz
rolf.meyer@arm.com 11:1c1ebd0324fa 62 */
rolf.meyer@arm.com 11:1c1ebd0324fa 63 void frequency(int hz);
rolf.meyer@arm.com 11:1c1ebd0324fa 64
rolf.meyer@arm.com 11:1c1ebd0324fa 65 /* Function: read
rolf.meyer@arm.com 11:1c1ebd0324fa 66 * Read from an I2C slave
simon.ford@mbed.co.uk 0:82220227f4fa 67 *
rolf.meyer@arm.com 12:f63353af7be8 68 * Performs a complete read transaction. The bottom bit of
rolf.meyer@arm.com 12:f63353af7be8 69 * the address is forced to 1 to indicate a read.
rolf.meyer@arm.com 12:f63353af7be8 70 *
rolf.meyer@arm.com 11:1c1ebd0324fa 71 * Variables:
rolf.meyer@arm.com 12:f63353af7be8 72 * address - 8-bit I2C slave address [ addr | 1 ]
rolf.meyer@arm.com 11:1c1ebd0324fa 73 * data - Pointer to the byte-array to read data in to
rolf.meyer@arm.com 11:1c1ebd0324fa 74 * length - Number of bytes to read
simon 20:029aa53d7323 75 * repeated - Repeated start, true - don't send stop at end
rolf.meyer@arm.com 12:f63353af7be8 76 * returns - 0 on success (ack), or non-0 on failure (nack)
rolf.meyer@arm.com 11:1c1ebd0324fa 77 */
simon 20:029aa53d7323 78 int read(int address, char *data, int length, bool repeated = false);
simon.ford@mbed.co.uk 0:82220227f4fa 79
simon 21:3944f1e2fa4f 80 /* Function: read
simon 21:3944f1e2fa4f 81 * Read a single byte from the I2C bus
simon 21:3944f1e2fa4f 82 *
simon 21:3944f1e2fa4f 83 * Variables:
simon 21:3944f1e2fa4f 84 * ack - indicates if the byte is to be acknowledged (1 = acknowledge)
simon 21:3944f1e2fa4f 85 * returns - the byte read
simon 21:3944f1e2fa4f 86 */
simon 21:3944f1e2fa4f 87 int read(int ack);
simon 21:3944f1e2fa4f 88
rolf.meyer@arm.com 11:1c1ebd0324fa 89 /* Function: write
rolf.meyer@arm.com 11:1c1ebd0324fa 90 * Write to an I2C slave
rolf.meyer@arm.com 11:1c1ebd0324fa 91 *
rolf.meyer@arm.com 12:f63353af7be8 92 * Performs a complete write transaction. The bottom bit of
rolf.meyer@arm.com 12:f63353af7be8 93 * the address is forced to 0 to indicate a write.
rolf.meyer@arm.com 12:f63353af7be8 94 *
rolf.meyer@arm.com 11:1c1ebd0324fa 95 * Variables:
rolf.meyer@arm.com 12:f63353af7be8 96 * address - 8-bit I2C slave address [ addr | 0 ]
rolf.meyer@arm.com 11:1c1ebd0324fa 97 * data - Pointer to the byte-array data to send
rolf.meyer@arm.com 11:1c1ebd0324fa 98 * length - Number of bytes to send
simon 20:029aa53d7323 99 * repeated - Repeated start, true - do not send stop at end
rolf.meyer@arm.com 12:f63353af7be8 100 * returns - 0 on success (ack), or non-0 on failure (nack)
rolf.meyer@arm.com 11:1c1ebd0324fa 101 */
simon 20:029aa53d7323 102 int write(int address, const char *data, int length, bool repeated = false);
simon 21:3944f1e2fa4f 103
simon 21:3944f1e2fa4f 104 /* Function: write
simon 21:3944f1e2fa4f 105 * Write single byte out on the I2C bus
simon 21:3944f1e2fa4f 106 *
simon 21:3944f1e2fa4f 107 * Variables:
simon 21:3944f1e2fa4f 108 * data - data to write out on bus
simon 21:3944f1e2fa4f 109 * returns - a '1' if an ACK was retrieved, a '0' otherwise
simon 21:3944f1e2fa4f 110 */
simon 21:3944f1e2fa4f 111 int write(int data);
simon 21:3944f1e2fa4f 112
simon 21:3944f1e2fa4f 113 /* Function: start
simon 21:3944f1e2fa4f 114 * Creates a start condition on the I2C bus
simon 21:3944f1e2fa4f 115 */
simon 21:3944f1e2fa4f 116
simon 21:3944f1e2fa4f 117 void start(void);
simon 21:3944f1e2fa4f 118
simon 21:3944f1e2fa4f 119 /* Function: stop
simon 21:3944f1e2fa4f 120 * Creates a stop condition on the I2C bus
simon 21:3944f1e2fa4f 121 */
simon 21:3944f1e2fa4f 122 void stop(void);
simon 21:3944f1e2fa4f 123
simon.ford@mbed.co.uk 0:82220227f4fa 124 protected:
simon.ford@mbed.co.uk 0:82220227f4fa 125
rolf.meyer@arm.com 11:1c1ebd0324fa 126 void aquire();
simon 20:029aa53d7323 127
simon 20:029aa53d7323 128 I2CName _i2c;
simon 20:029aa53d7323 129 static I2C *_owner;
simon 20:029aa53d7323 130 int _hz;
simon.ford@mbed.co.uk 0:82220227f4fa 131
simon.ford@mbed.co.uk 0:82220227f4fa 132 };
simon.ford@mbed.co.uk 0:82220227f4fa 133
rolf.meyer@arm.com 11:1c1ebd0324fa 134 } // namespace mbed
simon.ford@mbed.co.uk 0:82220227f4fa 135
simon.ford@mbed.co.uk 1:6b7f447ca868 136 #endif