The official mbed C/C SDK provides the software platform and libraries to build your applications.
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(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
- Schematic photo vvv
- Functionality photo vvv
Latest eagle files
PCB >> /media/uploads/k4zuki/mbedshield050.brd
SCH >> /media/uploads/k4zuki/mbedshield050.sch
BIG changes from previous version
- Ethernet RJ45 connector is removed.
- http://mbed.org/components/Seeed-Ethernet-Shield-V20/ is the biggest hint to use Ethernet!
MostALL of components can be bought at Akizuki http://akizukidenshi.com/- But sorry, they do not send parts to abroad
- Pinout is changed!
arduino | 0.4.0 | 0.5.0 |
---|---|---|
D4 | p12 | p21 |
D5 | p11 | p22 |
MOSI_ | none | p11 |
MISO_ | none | p12 |
SCK_ | none | p13 |
This design has bug(s)
- I2C functional pin differs between 1768 and 11U24.
Fixed bugs here
- MiniUSB cable cannot be connected on mbed if you solder high-height electrolytic capacitor on C3.
- http://akizukidenshi.com/catalog/g/gP-05002/ is the solution to make this 100% AKIZUKI parts!
- the 6-pin ISP port is not inprimented in version 0.4.0
it will be fixed in later version 0.4.1/0.4.2/0.5.0This 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
I2CSlave.h
- Committer:
- emilmont
- Date:
- 2012-10-26
- Revision:
- 43:e2ed12d17f06
- Parent:
- 27:7110ebee3484
- Child:
- 44:24d45a770a51
File content as of revision 43:e2ed12d17f06:
/* mbed Microcontroller Library - I2CSlave * Copyright (c) 2007-2011 ARM Limited. All rights reserved. */ #ifndef MBED_I2C_SLAVE_H #define MBED_I2C_SLAVE_H #include "device.h" #if DEVICE_I2CSLAVE #include "platform.h" #include "PinNames.h" #include "PeripheralNames.h" #include "Base.h" namespace mbed { /** An I2C Slave, used for communicating with an I2C Master device * * Example: * @code * // Simple I2C responder * #include <mbed.h> * * I2CSlave slave(p9, p10); * * int main() { * char buf[10]; * char msg[] = "Slave!"; * * slave.address(0xA0); * while (1) { * int i = slave.receive(); * switch (i) { * case I2CSlave::ReadAddressed: * slave.write(msg, strlen(msg) + 1); // Includes null char * break; * case I2CSlave::WriteGeneral: * slave.read(buf, 10); * printf("Read G: %s\n", buf); * break; * case I2CSlave::WriteAddressed: * slave.read(buf, 10); * printf("Read A: %s\n", buf); * break; * } * for(int i = 0; i < 10; i++) buf[i] = 0; // Clear buffer * } * } * @endcode */ class I2CSlave : public Base { public: enum RxStatus { NoData = 0 , ReadAddressed = 1 , WriteGeneral = 2 , WriteAddressed = 3 }; /** Create an I2C Slave interface, connected to the specified pins. * * @param sda I2C data line pin * @param scl I2C clock line pin */ I2CSlave(PinName sda, PinName scl, const char *name = NULL); /** Set the frequency of the I2C interface * * @param hz The bus frequency in hertz */ void frequency(int hz); /** Checks to see if this I2C Slave has been addressed. * * @returns * A status indicating if the device has been addressed, and how * - NoData - the slave has not been addressed * - ReadAddressed - the master has requested a read from this slave * - WriteAddressed - the master is writing to this slave * - WriteGeneral - the master is writing to all slave */ int receive(void); /** Read from an I2C master. * * @param data pointer to the byte array to read data in to * @param length maximum number of bytes to read * * @returns * 0 on success, * non-0 otherwise */ int read(char *data, int length); /** Read a single byte from an I2C master. * * @returns * the byte read */ int read(void); /** Write to an I2C master. * * @param data pointer to the byte array to be transmitted * @param length the number of bytes to transmite * * @returns * 0 on success, * non-0 otherwise */ int write(const char *data, int length); /** Write a single byte to an I2C master. * * @data the byte to write * * @returns * '1' if an ACK was received, * '0' otherwise */ int write(int data); /** Sets the I2C slave address. * * @param address The address to set for the slave (ignoring the least * signifcant bit). If set to 0, the slave will only respond to the * general call address. */ void address(int address); /** Reset the I2C slave back into the known ready receiving state. */ void stop(void); protected: I2CName _i2c; }; } // namespace mbed #endif #endif