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

I2CSlave.h@22:9114680c05da, 2010-07-08 (annotated)

Committer:: simon
Date:: Thu Jul 08 14:27:15 2010 +0000
Revision:: 22:9114680c05da
Child:: 27:7110ebee3484

* CAN updates

 * I2CSlave

 * I2C and Ethernet bugfixes

Who changed what in which revision?

User	Revision	Line number	New contents of line
simon	22:9114680c05da	1	/* mbed Microcontroller Library - I2CSlave
simon	22:9114680c05da	2	* Copyright (c) 2007-2010 ARM Limited. All rights reserved.
simon	22:9114680c05da	3	* jward
simon	22:9114680c05da	4	*/
simon	22:9114680c05da	5
simon	22:9114680c05da	6	#ifndef MBED_I2C_SLAVE_H
simon	22:9114680c05da	7	#define MBED_I2C_SLAVE_H
simon	22:9114680c05da	8
simon	22:9114680c05da	9	#include "platform.h"
simon	22:9114680c05da	10	#include "PinNames.h"
simon	22:9114680c05da	11	#include "PeripheralNames.h"
simon	22:9114680c05da	12	#include "Base.h"
simon	22:9114680c05da	13
simon	22:9114680c05da	14	namespace mbed {
simon	22:9114680c05da	15
simon	22:9114680c05da	16	/* Class: I2CSlave
simon	22:9114680c05da	17	* An I2C Slave, used for communicating with an I2C Master device
simon	22:9114680c05da	18	*
simon	22:9114680c05da	19	* Example:
simon	22:9114680c05da	20	* > // Simple I2C responder
simon	22:9114680c05da	21	* > #include <mbed.h>
simon	22:9114680c05da	22	* >
simon	22:9114680c05da	23	* > I2CSlave slave(p9, p10);
simon	22:9114680c05da	24	* >
simon	22:9114680c05da	25	* > int main() {
simon	22:9114680c05da	26	* > char buf[10];
simon	22:9114680c05da	27	* > char msg[] = "Slave!";
simon	22:9114680c05da	28	* >
simon	22:9114680c05da	29	* > slave.address(0xA0);
simon	22:9114680c05da	30	* > while (1) {
simon	22:9114680c05da	31	* > int i = slave.receive();
simon	22:9114680c05da	32	* > switch (i) {
simon	22:9114680c05da	33	* > case I2CSlave::ReadAddressed:
simon	22:9114680c05da	34	* > slave.write(msg, strlen(msg) + 1); // Includes null char
simon	22:9114680c05da	35	* > break;
simon	22:9114680c05da	36	* > case I2CSlave::WriteGeneral:
simon	22:9114680c05da	37	* > slave.read(buf, 10);
simon	22:9114680c05da	38	* > printf("Read G: %s\n", buf);
simon	22:9114680c05da	39	* > break;
simon	22:9114680c05da	40	* > case I2CSlave::WriteAddressed:
simon	22:9114680c05da	41	* > slave.read(buf, 10);
simon	22:9114680c05da	42	* > printf("Read A: %s\n", buf);
simon	22:9114680c05da	43	* > break;
simon	22:9114680c05da	44	* > }
simon	22:9114680c05da	45	* > for(int i = 0; i < 10; i++) buf[i] = 0; // Clear buffer
simon	22:9114680c05da	46	* > }
simon	22:9114680c05da	47	* > }
simon	22:9114680c05da	48	* >
simon	22:9114680c05da	49	*/
simon	22:9114680c05da	50	class I2CSlave : public Base {
simon	22:9114680c05da	51
simon	22:9114680c05da	52	public:
simon	22:9114680c05da	53
simon	22:9114680c05da	54	enum RxStatus {
simon	22:9114680c05da	55	NoData = 0
simon	22:9114680c05da	56	, ReadAddressed = 1
simon	22:9114680c05da	57	, WriteGeneral = 2
simon	22:9114680c05da	58	, WriteAddressed = 3
simon	22:9114680c05da	59	};
simon	22:9114680c05da	60
simon	22:9114680c05da	61	/* Constructor: I2CSlave
simon	22:9114680c05da	62	* Create an I2C Slave interface, connected to the specified pins.
simon	22:9114680c05da	63	*
simon	22:9114680c05da	64	* Variables:
simon	22:9114680c05da	65	* sda - I2C data line pin
simon	22:9114680c05da	66	* scl - I2C clock line pin
simon	22:9114680c05da	67	*/
simon	22:9114680c05da	68	I2CSlave(PinName sda, PinName scl, const char *name = NULL);
simon	22:9114680c05da	69
simon	22:9114680c05da	70	/* Function: frequency
simon	22:9114680c05da	71	* Set the frequency of the I2C interface
simon	22:9114680c05da	72	*
simon	22:9114680c05da	73	* Variables:
simon	22:9114680c05da	74	* hz - The bus frequency in hertz
simon	22:9114680c05da	75	*/
simon	22:9114680c05da	76	void frequency(int hz);
simon	22:9114680c05da	77
simon	22:9114680c05da	78	/* Function: receive
simon	22:9114680c05da	79	* Checks to see if this I2C Slave has been addressed.
simon	22:9114680c05da	80	*
simon	22:9114680c05da	81	* Variables:
simon	22:9114680c05da	82	* returns - a status indicating if the device has been addressed, and how
simon	22:9114680c05da	83	* > NoData - the slave has not been addressed
simon	22:9114680c05da	84	* > ReadAddressed - the master has requested a read from this slave
simon	22:9114680c05da	85	* > WriteAddressed - the master is writing to this slave
simon	22:9114680c05da	86	* > WriteGeneral - the master is writing to all slave
simon	22:9114680c05da	87	*/
simon	22:9114680c05da	88	int receive(void);
simon	22:9114680c05da	89
simon	22:9114680c05da	90	/* Function: read
simon	22:9114680c05da	91	* Read from an I2C master.
simon	22:9114680c05da	92	*
simon	22:9114680c05da	93	* Variables:
simon	22:9114680c05da	94	* data - pointer to the byte array to read data in to
simon	22:9114680c05da	95	* length - maximum number of bytes to read
simon	22:9114680c05da	96	* returns - 0 on success, non-0 otherwise
simon	22:9114680c05da	97	*/
simon	22:9114680c05da	98	int read(char *data, int length);
simon	22:9114680c05da	99
simon	22:9114680c05da	100	/* Function: read
simon	22:9114680c05da	101	* Read a single byte from an I2C master.
simon	22:9114680c05da	102	*
simon	22:9114680c05da	103	* Variables:
simon	22:9114680c05da	104	* returns - the byte read
simon	22:9114680c05da	105	*/
simon	22:9114680c05da	106	int read(void);
simon	22:9114680c05da	107
simon	22:9114680c05da	108	/* Function: write
simon	22:9114680c05da	109	* Write to an I2C master.
simon	22:9114680c05da	110	*
simon	22:9114680c05da	111	* Variables:
simon	22:9114680c05da	112	* data - pointer to the byte array to be transmitted
simon	22:9114680c05da	113	* length - the number of bytes to transmite
simon	22:9114680c05da	114	* returns - a 0 on success, non-0 otherwise
simon	22:9114680c05da	115	*/
simon	22:9114680c05da	116	int write(const char *data, int length);
simon	22:9114680c05da	117
simon	22:9114680c05da	118	/* Function: write
simon	22:9114680c05da	119	* Write a single byte to an I2C master.
simon	22:9114680c05da	120	*
simon	22:9114680c05da	121	* Variables
simon	22:9114680c05da	122	* data - the byte to write
simon	22:9114680c05da	123	* returns - a '1' if an ACK was received, a '0' otherwise
simon	22:9114680c05da	124	*/
simon	22:9114680c05da	125	int write(int data);
simon	22:9114680c05da	126
simon	22:9114680c05da	127	/* Function: address
simon	22:9114680c05da	128	* Sets the I2C slave address.
simon	22:9114680c05da	129	*
simon	22:9114680c05da	130	* Variables
simon	22:9114680c05da	131	* address - the address to set for the slave (ignoring the least
simon	22:9114680c05da	132	* signifcant bit). If set to 0, the slave will only respond to the
simon	22:9114680c05da	133	* general call address.
simon	22:9114680c05da	134	*/
simon	22:9114680c05da	135	void address(int address);
simon	22:9114680c05da	136
simon	22:9114680c05da	137	/* Function: stop
simon	22:9114680c05da	138	* Reset the I2C slave back into the known ready receiving state.
simon	22:9114680c05da	139	*/
simon	22:9114680c05da	140	void stop(void);
simon	22:9114680c05da	141
simon	22:9114680c05da	142	protected:
simon	22:9114680c05da	143
simon	22:9114680c05da	144	I2CName _i2c;
simon	22:9114680c05da	145	};
simon	22:9114680c05da	146
simon	22:9114680c05da	147	} // namespace mbed
simon	22:9114680c05da	148
simon	22:9114680c05da	149	#endif

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