mbeDshield - The official mbed C/C SDK provides the software…

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Kazuki Yamamoto / mbeDshield

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
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.
1. http://mbed.org/components/Seeed-Ethernet-Shield-V20/ is the biggest hint to use Ethernet!
~~Most~~ ALL of components can be bought at Akizuki http://akizukidenshi.com/
1. 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.
1. 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
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

I2C.h@72:e0dca162df14, 2014-05-06 (annotated)

Committer:: k4zuki
Date:: Tue May 06 17:25:49 2014 +0000
Revision:: 72:e0dca162df14
Parent:: 65:5798e58a58b1

bug fix

Who changed what in which revision?

User	Revision	Line number	New contents of line
bogdanm	65:5798e58a58b1	1	/* mbed Microcontroller Library
bogdanm	65:5798e58a58b1	2	* Copyright (c) 2006-2013 ARM Limited
bogdanm	65:5798e58a58b1	3	*
bogdanm	65:5798e58a58b1	4	* Licensed under the Apache License, Version 2.0 (the "License");
bogdanm	65:5798e58a58b1	5	* you may not use this file except in compliance with the License.
bogdanm	65:5798e58a58b1	6	* You may obtain a copy of the License at
bogdanm	65:5798e58a58b1	7	*
bogdanm	65:5798e58a58b1	8	* http://www.apache.org/licenses/LICENSE-2.0
bogdanm	65:5798e58a58b1	9	*
bogdanm	65:5798e58a58b1	10	* Unless required by applicable law or agreed to in writing, software
bogdanm	65:5798e58a58b1	11	* distributed under the License is distributed on an "AS IS" BASIS,
bogdanm	65:5798e58a58b1	12	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
bogdanm	65:5798e58a58b1	13	* See the License for the specific language governing permissions and
bogdanm	65:5798e58a58b1	14	* limitations under the License.
bogdanm	65:5798e58a58b1	15	*/
bogdanm	65:5798e58a58b1	16	#ifndef MBED_I2C_H
bogdanm	65:5798e58a58b1	17	#define MBED_I2C_H
bogdanm	65:5798e58a58b1	18
bogdanm	65:5798e58a58b1	19	#include "platform.h"
bogdanm	65:5798e58a58b1	20
bogdanm	65:5798e58a58b1	21	#if DEVICE_I2C
bogdanm	65:5798e58a58b1	22
bogdanm	65:5798e58a58b1	23	#include "i2c_api.h"
bogdanm	65:5798e58a58b1	24
bogdanm	65:5798e58a58b1	25	namespace mbed {
bogdanm	65:5798e58a58b1	26
bogdanm	65:5798e58a58b1	27	/** An I2C Master, used for communicating with I2C slave devices
bogdanm	65:5798e58a58b1	28	*
bogdanm	65:5798e58a58b1	29	* Example:
bogdanm	65:5798e58a58b1	30	* @code
bogdanm	65:5798e58a58b1	31	* // Read from I2C slave at address 0x62
bogdanm	65:5798e58a58b1	32	*
bogdanm	65:5798e58a58b1	33	* #include "mbed.h"
bogdanm	65:5798e58a58b1	34	*
bogdanm	65:5798e58a58b1	35	* I2C i2c(p28, p27);
bogdanm	65:5798e58a58b1	36	*
bogdanm	65:5798e58a58b1	37	* int main() {
bogdanm	65:5798e58a58b1	38	* int address = 0x62;
bogdanm	65:5798e58a58b1	39	* char data[2];
bogdanm	65:5798e58a58b1	40	* i2c.read(address, data, 2);
bogdanm	65:5798e58a58b1	41	* }
bogdanm	65:5798e58a58b1	42	* @endcode
bogdanm	65:5798e58a58b1	43	*/
bogdanm	65:5798e58a58b1	44	class I2C {
bogdanm	65:5798e58a58b1	45
bogdanm	65:5798e58a58b1	46	public:
bogdanm	65:5798e58a58b1	47	enum RxStatus {
bogdanm	65:5798e58a58b1	48	NoData,
bogdanm	65:5798e58a58b1	49	MasterGeneralCall,
bogdanm	65:5798e58a58b1	50	MasterWrite,
bogdanm	65:5798e58a58b1	51	MasterRead
bogdanm	65:5798e58a58b1	52	};
bogdanm	65:5798e58a58b1	53
bogdanm	65:5798e58a58b1	54	enum Acknowledge {
bogdanm	65:5798e58a58b1	55	NoACK = 0,
bogdanm	65:5798e58a58b1	56	ACK = 1
bogdanm	65:5798e58a58b1	57	};
bogdanm	65:5798e58a58b1	58
bogdanm	65:5798e58a58b1	59	/** Create an I2C Master interface, connected to the specified pins
bogdanm	65:5798e58a58b1	60	*
bogdanm	65:5798e58a58b1	61	* @param sda I2C data line pin
bogdanm	65:5798e58a58b1	62	* @param scl I2C clock line pin
bogdanm	65:5798e58a58b1	63	*/
bogdanm	65:5798e58a58b1	64	I2C(PinName sda, PinName scl);
bogdanm	65:5798e58a58b1	65
bogdanm	65:5798e58a58b1	66	/** Set the frequency of the I2C interface
bogdanm	65:5798e58a58b1	67	*
bogdanm	65:5798e58a58b1	68	* @param hz The bus frequency in hertz
bogdanm	65:5798e58a58b1	69	*/
bogdanm	65:5798e58a58b1	70	void frequency(int hz);
bogdanm	65:5798e58a58b1	71
bogdanm	65:5798e58a58b1	72	/** Read from an I2C slave
bogdanm	65:5798e58a58b1	73	*
bogdanm	65:5798e58a58b1	74	* Performs a complete read transaction. The bottom bit of
bogdanm	65:5798e58a58b1	75	* the address is forced to 1 to indicate a read.
bogdanm	65:5798e58a58b1	76	*
bogdanm	65:5798e58a58b1	77	* @param address 8-bit I2C slave address [ addr \| 1 ]
bogdanm	65:5798e58a58b1	78	* @param data Pointer to the byte-array to read data in to
bogdanm	65:5798e58a58b1	79	* @param length Number of bytes to read
bogdanm	65:5798e58a58b1	80	* @param repeated Repeated start, true - don't send stop at end
bogdanm	65:5798e58a58b1	81	*
bogdanm	65:5798e58a58b1	82	* @returns
bogdanm	65:5798e58a58b1	83	* 0 on success (ack),
bogdanm	65:5798e58a58b1	84	* non-0 on failure (nack)
bogdanm	65:5798e58a58b1	85	*/
bogdanm	65:5798e58a58b1	86	int read(int address, char *data, int length, bool repeated = false);
bogdanm	65:5798e58a58b1	87
bogdanm	65:5798e58a58b1	88	/** Read a single byte from the I2C bus
bogdanm	65:5798e58a58b1	89	*
bogdanm	65:5798e58a58b1	90	* @param ack indicates if the byte is to be acknowledged (1 = acknowledge)
bogdanm	65:5798e58a58b1	91	*
bogdanm	65:5798e58a58b1	92	* @returns
bogdanm	65:5798e58a58b1	93	* the byte read
bogdanm	65:5798e58a58b1	94	*/
bogdanm	65:5798e58a58b1	95	int read(int ack);
bogdanm	65:5798e58a58b1	96
bogdanm	65:5798e58a58b1	97	/** Write to an I2C slave
bogdanm	65:5798e58a58b1	98	*
bogdanm	65:5798e58a58b1	99	* Performs a complete write transaction. The bottom bit of
bogdanm	65:5798e58a58b1	100	* the address is forced to 0 to indicate a write.
bogdanm	65:5798e58a58b1	101	*
bogdanm	65:5798e58a58b1	102	* @param address 8-bit I2C slave address [ addr \| 0 ]
bogdanm	65:5798e58a58b1	103	* @param data Pointer to the byte-array data to send
bogdanm	65:5798e58a58b1	104	* @param length Number of bytes to send
bogdanm	65:5798e58a58b1	105	* @param repeated Repeated start, true - do not send stop at end
bogdanm	65:5798e58a58b1	106	*
bogdanm	65:5798e58a58b1	107	* @returns
bogdanm	65:5798e58a58b1	108	* 0 on success (ack),
bogdanm	65:5798e58a58b1	109	* non-0 on failure (nack)
bogdanm	65:5798e58a58b1	110	*/
bogdanm	65:5798e58a58b1	111	int write(int address, const char *data, int length, bool repeated = false);
bogdanm	65:5798e58a58b1	112
bogdanm	65:5798e58a58b1	113	/** Write single byte out on the I2C bus
bogdanm	65:5798e58a58b1	114	*
bogdanm	65:5798e58a58b1	115	* @param data data to write out on bus
bogdanm	65:5798e58a58b1	116	*
bogdanm	65:5798e58a58b1	117	* @returns
bogdanm	65:5798e58a58b1	118	* '1' if an ACK was received,
bogdanm	65:5798e58a58b1	119	* '0' otherwise
bogdanm	65:5798e58a58b1	120	*/
bogdanm	65:5798e58a58b1	121	int write(int data);
bogdanm	65:5798e58a58b1	122
bogdanm	65:5798e58a58b1	123	/** Creates a start condition on the I2C bus
bogdanm	65:5798e58a58b1	124	*/
bogdanm	65:5798e58a58b1	125
bogdanm	65:5798e58a58b1	126	void start(void);
bogdanm	65:5798e58a58b1	127
bogdanm	65:5798e58a58b1	128	/** Creates a stop condition on the I2C bus
bogdanm	65:5798e58a58b1	129	*/
bogdanm	65:5798e58a58b1	130	void stop(void);
bogdanm	65:5798e58a58b1	131
bogdanm	65:5798e58a58b1	132	protected:
bogdanm	65:5798e58a58b1	133	void aquire();
bogdanm	65:5798e58a58b1	134
bogdanm	65:5798e58a58b1	135	i2c_t _i2c;
bogdanm	65:5798e58a58b1	136	static I2C *_owner;
bogdanm	65:5798e58a58b1	137	int _hz;
bogdanm	65:5798e58a58b1	138	};
bogdanm	65:5798e58a58b1	139
bogdanm	65:5798e58a58b1	140	} // namespace mbed
bogdanm	65:5798e58a58b1	141
bogdanm	65:5798e58a58b1	142	#endif
bogdanm	65:5798e58a58b1	143
bogdanm	65:5798e58a58b1	144	#endif

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Type:	Library
Created:	11 Nov 2013
Imports:	30
Forks:	0
Commits:	73
Dependents:	1
Dependencies:	0
Followers:	2