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
I2C.h
- Committer:
- bogdanm
- Date:
- 2013-08-12
- Revision:
- 65:5798e58a58b1
- Parent:
- 59:0883845fe643
File content as of revision 65:5798e58a58b1:
/* mbed Microcontroller Library * Copyright (c) 2006-2013 ARM Limited * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #ifndef MBED_I2C_H #define MBED_I2C_H #include "platform.h" #if DEVICE_I2C #include "i2c_api.h" namespace mbed { /** An I2C Master, used for communicating with I2C slave devices * * Example: * @code * // Read from I2C slave at address 0x62 * * #include "mbed.h" * * I2C i2c(p28, p27); * * int main() { * int address = 0x62; * char data[2]; * i2c.read(address, data, 2); * } * @endcode */ class I2C { public: enum RxStatus { NoData, MasterGeneralCall, MasterWrite, MasterRead }; enum Acknowledge { NoACK = 0, ACK = 1 }; /** Create an I2C Master interface, connected to the specified pins * * @param sda I2C data line pin * @param scl I2C clock line pin */ I2C(PinName sda, PinName scl); /** Set the frequency of the I2C interface * * @param hz The bus frequency in hertz */ void frequency(int hz); /** Read from an I2C slave * * Performs a complete read transaction. The bottom bit of * the address is forced to 1 to indicate a read. * * @param address 8-bit I2C slave address [ addr | 1 ] * @param data Pointer to the byte-array to read data in to * @param length Number of bytes to read * @param repeated Repeated start, true - don't send stop at end * * @returns * 0 on success (ack), * non-0 on failure (nack) */ int read(int address, char *data, int length, bool repeated = false); /** Read a single byte from the I2C bus * * @param ack indicates if the byte is to be acknowledged (1 = acknowledge) * * @returns * the byte read */ int read(int ack); /** Write to an I2C slave * * Performs a complete write transaction. The bottom bit of * the address is forced to 0 to indicate a write. * * @param address 8-bit I2C slave address [ addr | 0 ] * @param data Pointer to the byte-array data to send * @param length Number of bytes to send * @param repeated Repeated start, true - do not send stop at end * * @returns * 0 on success (ack), * non-0 on failure (nack) */ int write(int address, const char *data, int length, bool repeated = false); /** Write single byte out on the I2C bus * * @param data data to write out on bus * * @returns * '1' if an ACK was received, * '0' otherwise */ int write(int data); /** Creates a start condition on the I2C bus */ void start(void); /** Creates a stop condition on the I2C bus */ void stop(void); protected: void aquire(); i2c_t _i2c; static I2C *_owner; int _hz; }; } // namespace mbed #endif #endif