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 03 11:17:50 2010 +0000
Revision:
20:029aa53d7323
Parent:
12:f63353af7be8
Child:
21:3944f1e2fa4f
* Add SPISlave, SPIHalfDuplex, SerialHalfDuplex
* Add I2C repeated start
* Add ethernet set_link()
* Add documentation for wait()

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
rolf.meyer@arm.com 11:1c1ebd0324fa 43 /* Constructor: I2C
rolf.meyer@arm.com 11:1c1ebd0324fa 44 * Create an I2C Master interface, connected to the specified pins
rolf.meyer@arm.com 11:1c1ebd0324fa 45 *
rolf.meyer@arm.com 11:1c1ebd0324fa 46 * Variables:
rolf.meyer@arm.com 11:1c1ebd0324fa 47 * sda - I2C data line pin
rolf.meyer@arm.com 11:1c1ebd0324fa 48 * scl - I2C clock line pin
rolf.meyer@arm.com 11:1c1ebd0324fa 49 */
rolf.meyer@arm.com 11:1c1ebd0324fa 50 I2C(PinName sda, PinName scl, const char *name = NULL);
simon.ford@mbed.co.uk 0:82220227f4fa 51
rolf.meyer@arm.com 11:1c1ebd0324fa 52 /* Function: frequency
rolf.meyer@arm.com 11:1c1ebd0324fa 53 * Set the frequency of the I2C interface
rolf.meyer@arm.com 11:1c1ebd0324fa 54 *
rolf.meyer@arm.com 11:1c1ebd0324fa 55 * Variables:
rolf.meyer@arm.com 11:1c1ebd0324fa 56 * hz - The bus frequency in hertz
rolf.meyer@arm.com 11:1c1ebd0324fa 57 */
rolf.meyer@arm.com 11:1c1ebd0324fa 58 void frequency(int hz);
rolf.meyer@arm.com 11:1c1ebd0324fa 59
rolf.meyer@arm.com 11:1c1ebd0324fa 60 /* Function: read
rolf.meyer@arm.com 11:1c1ebd0324fa 61 * Read from an I2C slave
simon.ford@mbed.co.uk 0:82220227f4fa 62 *
rolf.meyer@arm.com 12:f63353af7be8 63 * Performs a complete read transaction. The bottom bit of
rolf.meyer@arm.com 12:f63353af7be8 64 * the address is forced to 1 to indicate a read.
rolf.meyer@arm.com 12:f63353af7be8 65 *
rolf.meyer@arm.com 11:1c1ebd0324fa 66 * Variables:
rolf.meyer@arm.com 12:f63353af7be8 67 * address - 8-bit I2C slave address [ addr | 1 ]
rolf.meyer@arm.com 11:1c1ebd0324fa 68 * data - Pointer to the byte-array to read data in to
rolf.meyer@arm.com 11:1c1ebd0324fa 69 * length - Number of bytes to read
simon 20:029aa53d7323 70 * repeated - Repeated start, true - don't send stop at end
rolf.meyer@arm.com 12:f63353af7be8 71 * returns - 0 on success (ack), or non-0 on failure (nack)
rolf.meyer@arm.com 11:1c1ebd0324fa 72 */
simon 20:029aa53d7323 73 int read(int address, char *data, int length, bool repeated = false);
simon.ford@mbed.co.uk 0:82220227f4fa 74
rolf.meyer@arm.com 11:1c1ebd0324fa 75 /* Function: write
rolf.meyer@arm.com 11:1c1ebd0324fa 76 * Write to an I2C slave
rolf.meyer@arm.com 11:1c1ebd0324fa 77 *
rolf.meyer@arm.com 12:f63353af7be8 78 * Performs a complete write transaction. The bottom bit of
rolf.meyer@arm.com 12:f63353af7be8 79 * the address is forced to 0 to indicate a write.
rolf.meyer@arm.com 12:f63353af7be8 80 *
rolf.meyer@arm.com 11:1c1ebd0324fa 81 * Variables:
rolf.meyer@arm.com 12:f63353af7be8 82 * address - 8-bit I2C slave address [ addr | 0 ]
rolf.meyer@arm.com 11:1c1ebd0324fa 83 * data - Pointer to the byte-array data to send
rolf.meyer@arm.com 11:1c1ebd0324fa 84 * length - Number of bytes to send
simon 20:029aa53d7323 85 * repeated - Repeated start, true - do not send stop at end
rolf.meyer@arm.com 12:f63353af7be8 86 * returns - 0 on success (ack), or non-0 on failure (nack)
rolf.meyer@arm.com 11:1c1ebd0324fa 87 */
simon 20:029aa53d7323 88 int write(int address, const char *data, int length, bool repeated = false);
rolf.meyer@arm.com 11:1c1ebd0324fa 89
simon.ford@mbed.co.uk 0:82220227f4fa 90 protected:
simon.ford@mbed.co.uk 0:82220227f4fa 91
rolf.meyer@arm.com 11:1c1ebd0324fa 92 void aquire();
simon 20:029aa53d7323 93
simon 20:029aa53d7323 94 I2CName _i2c;
simon 20:029aa53d7323 95 static I2C *_owner;
simon 20:029aa53d7323 96 int _hz;
simon.ford@mbed.co.uk 0:82220227f4fa 97
simon.ford@mbed.co.uk 0:82220227f4fa 98 };
simon.ford@mbed.co.uk 0:82220227f4fa 99
rolf.meyer@arm.com 11:1c1ebd0324fa 100 } // namespace mbed
simon.ford@mbed.co.uk 0:82220227f4fa 101
simon.ford@mbed.co.uk 1:6b7f447ca868 102 #endif