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@59:0883845fe643, 2013-02-18 (annotated)
- Committer:
- emilmont
- Date:
- Mon Feb 18 11:12:58 2013 +0000
- Revision:
- 59:0883845fe643
- Parent:
- 55:d722ed6a4237
- Child:
- 65:5798e58a58b1
Add pinmap NC terminators for LPC1768 CAN.
Update the license from MIT to Apache v2.
Make the semihost code target independent using opportune defines for the UID and MAC.
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
emilmont | 44:24d45a770a51 | 1 | /* mbed Microcontroller Library |
emilmont | 54:71b101360fb9 | 2 | * Copyright (c) 2006-2013 ARM Limited |
emilmont | 44:24d45a770a51 | 3 | * |
emilmont | 59:0883845fe643 | 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
emilmont | 59:0883845fe643 | 5 | * you may not use this file except in compliance with the License. |
emilmont | 59:0883845fe643 | 6 | * You may obtain a copy of the License at |
emilmont | 59:0883845fe643 | 7 | * |
emilmont | 59:0883845fe643 | 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
emilmont | 44:24d45a770a51 | 9 | * |
emilmont | 59:0883845fe643 | 10 | * Unless required by applicable law or agreed to in writing, software |
emilmont | 59:0883845fe643 | 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
emilmont | 59:0883845fe643 | 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
emilmont | 59:0883845fe643 | 13 | * See the License for the specific language governing permissions and |
emilmont | 59:0883845fe643 | 14 | * limitations under the License. |
emilmont | 44:24d45a770a51 | 15 | */ |
simon | 22:9114680c05da | 16 | #ifndef MBED_I2C_SLAVE_H |
simon | 22:9114680c05da | 17 | #define MBED_I2C_SLAVE_H |
simon | 22:9114680c05da | 18 | |
emilmont | 44:24d45a770a51 | 19 | #include "platform.h" |
emilmont | 27:7110ebee3484 | 20 | |
emilmont | 27:7110ebee3484 | 21 | #if DEVICE_I2CSLAVE |
emilmont | 27:7110ebee3484 | 22 | |
emilmont | 44:24d45a770a51 | 23 | #include "i2c_api.h" |
simon | 22:9114680c05da | 24 | |
simon | 22:9114680c05da | 25 | namespace mbed { |
simon | 22:9114680c05da | 26 | |
emilmont | 43:e2ed12d17f06 | 27 | /** An I2C Slave, used for communicating with an I2C Master device |
simon | 22:9114680c05da | 28 | * |
simon | 22:9114680c05da | 29 | * Example: |
emilmont | 43:e2ed12d17f06 | 30 | * @code |
emilmont | 43:e2ed12d17f06 | 31 | * // Simple I2C responder |
emilmont | 43:e2ed12d17f06 | 32 | * #include <mbed.h> |
emilmont | 43:e2ed12d17f06 | 33 | * |
emilmont | 43:e2ed12d17f06 | 34 | * I2CSlave slave(p9, p10); |
emilmont | 43:e2ed12d17f06 | 35 | * |
emilmont | 43:e2ed12d17f06 | 36 | * int main() { |
emilmont | 43:e2ed12d17f06 | 37 | * char buf[10]; |
emilmont | 43:e2ed12d17f06 | 38 | * char msg[] = "Slave!"; |
emilmont | 43:e2ed12d17f06 | 39 | * |
emilmont | 43:e2ed12d17f06 | 40 | * slave.address(0xA0); |
emilmont | 43:e2ed12d17f06 | 41 | * while (1) { |
emilmont | 43:e2ed12d17f06 | 42 | * int i = slave.receive(); |
emilmont | 43:e2ed12d17f06 | 43 | * switch (i) { |
emilmont | 55:d722ed6a4237 | 44 | * case I2CSlave::ReadAddressed: |
emilmont | 43:e2ed12d17f06 | 45 | * slave.write(msg, strlen(msg) + 1); // Includes null char |
emilmont | 43:e2ed12d17f06 | 46 | * break; |
emilmont | 43:e2ed12d17f06 | 47 | * case I2CSlave::WriteGeneral: |
emilmont | 43:e2ed12d17f06 | 48 | * slave.read(buf, 10); |
emilmont | 43:e2ed12d17f06 | 49 | * printf("Read G: %s\n", buf); |
emilmont | 43:e2ed12d17f06 | 50 | * break; |
emilmont | 43:e2ed12d17f06 | 51 | * case I2CSlave::WriteAddressed: |
emilmont | 43:e2ed12d17f06 | 52 | * slave.read(buf, 10); |
emilmont | 43:e2ed12d17f06 | 53 | * printf("Read A: %s\n", buf); |
emilmont | 43:e2ed12d17f06 | 54 | * break; |
emilmont | 43:e2ed12d17f06 | 55 | * } |
emilmont | 43:e2ed12d17f06 | 56 | * for(int i = 0; i < 10; i++) buf[i] = 0; // Clear buffer |
emilmont | 43:e2ed12d17f06 | 57 | * } |
emilmont | 43:e2ed12d17f06 | 58 | * } |
emilmont | 55:d722ed6a4237 | 59 | * @endcode |
simon | 22:9114680c05da | 60 | */ |
emilmont | 44:24d45a770a51 | 61 | class I2CSlave { |
simon | 22:9114680c05da | 62 | |
simon | 22:9114680c05da | 63 | public: |
simon | 22:9114680c05da | 64 | enum RxStatus { |
emilmont | 44:24d45a770a51 | 65 | NoData = 0, |
emilmont | 44:24d45a770a51 | 66 | ReadAddressed = 1, |
emilmont | 44:24d45a770a51 | 67 | WriteGeneral = 2, |
emilmont | 44:24d45a770a51 | 68 | WriteAddressed = 3 |
simon | 22:9114680c05da | 69 | }; |
simon | 22:9114680c05da | 70 | |
emilmont | 43:e2ed12d17f06 | 71 | /** Create an I2C Slave interface, connected to the specified pins. |
simon | 22:9114680c05da | 72 | * |
emilmont | 43:e2ed12d17f06 | 73 | * @param sda I2C data line pin |
emilmont | 43:e2ed12d17f06 | 74 | * @param scl I2C clock line pin |
simon | 22:9114680c05da | 75 | */ |
emilmont | 44:24d45a770a51 | 76 | I2CSlave(PinName sda, PinName scl); |
simon | 22:9114680c05da | 77 | |
emilmont | 43:e2ed12d17f06 | 78 | /** Set the frequency of the I2C interface |
simon | 22:9114680c05da | 79 | * |
emilmont | 43:e2ed12d17f06 | 80 | * @param hz The bus frequency in hertz |
simon | 22:9114680c05da | 81 | */ |
simon | 22:9114680c05da | 82 | void frequency(int hz); |
simon | 22:9114680c05da | 83 | |
emilmont | 43:e2ed12d17f06 | 84 | /** Checks to see if this I2C Slave has been addressed. |
simon | 22:9114680c05da | 85 | * |
emilmont | 43:e2ed12d17f06 | 86 | * @returns |
emilmont | 43:e2ed12d17f06 | 87 | * A status indicating if the device has been addressed, and how |
emilmont | 43:e2ed12d17f06 | 88 | * - NoData - the slave has not been addressed |
emilmont | 43:e2ed12d17f06 | 89 | * - ReadAddressed - the master has requested a read from this slave |
emilmont | 43:e2ed12d17f06 | 90 | * - WriteAddressed - the master is writing to this slave |
emilmont | 55:d722ed6a4237 | 91 | * - WriteGeneral - the master is writing to all slave |
simon | 22:9114680c05da | 92 | */ |
simon | 22:9114680c05da | 93 | int receive(void); |
simon | 22:9114680c05da | 94 | |
emilmont | 43:e2ed12d17f06 | 95 | /** Read from an I2C master. |
simon | 22:9114680c05da | 96 | * |
emilmont | 43:e2ed12d17f06 | 97 | * @param data pointer to the byte array to read data in to |
emilmont | 43:e2ed12d17f06 | 98 | * @param length maximum number of bytes to read |
emilmont | 43:e2ed12d17f06 | 99 | * |
emilmont | 43:e2ed12d17f06 | 100 | * @returns |
emilmont | 43:e2ed12d17f06 | 101 | * 0 on success, |
emilmont | 43:e2ed12d17f06 | 102 | * non-0 otherwise |
simon | 22:9114680c05da | 103 | */ |
emilmont | 55:d722ed6a4237 | 104 | int read(char *data, int length); |
simon | 22:9114680c05da | 105 | |
emilmont | 43:e2ed12d17f06 | 106 | /** Read a single byte from an I2C master. |
simon | 22:9114680c05da | 107 | * |
emilmont | 43:e2ed12d17f06 | 108 | * @returns |
emilmont | 43:e2ed12d17f06 | 109 | * the byte read |
simon | 22:9114680c05da | 110 | */ |
simon | 22:9114680c05da | 111 | int read(void); |
simon | 22:9114680c05da | 112 | |
emilmont | 43:e2ed12d17f06 | 113 | /** Write to an I2C master. |
simon | 22:9114680c05da | 114 | * |
emilmont | 43:e2ed12d17f06 | 115 | * @param data pointer to the byte array to be transmitted |
emilmont | 43:e2ed12d17f06 | 116 | * @param length the number of bytes to transmite |
emilmont | 43:e2ed12d17f06 | 117 | * |
emilmont | 43:e2ed12d17f06 | 118 | * @returns |
emilmont | 43:e2ed12d17f06 | 119 | * 0 on success, |
emilmont | 43:e2ed12d17f06 | 120 | * non-0 otherwise |
simon | 22:9114680c05da | 121 | */ |
simon | 22:9114680c05da | 122 | int write(const char *data, int length); |
simon | 22:9114680c05da | 123 | |
emilmont | 43:e2ed12d17f06 | 124 | /** Write a single byte to an I2C master. |
emilmont | 43:e2ed12d17f06 | 125 | * |
emilmont | 43:e2ed12d17f06 | 126 | * @data the byte to write |
simon | 22:9114680c05da | 127 | * |
emilmont | 43:e2ed12d17f06 | 128 | * @returns |
emilmont | 43:e2ed12d17f06 | 129 | * '1' if an ACK was received, |
emilmont | 43:e2ed12d17f06 | 130 | * '0' otherwise |
simon | 22:9114680c05da | 131 | */ |
simon | 22:9114680c05da | 132 | int write(int data); |
simon | 22:9114680c05da | 133 | |
emilmont | 43:e2ed12d17f06 | 134 | /** Sets the I2C slave address. |
simon | 22:9114680c05da | 135 | * |
emilmont | 43:e2ed12d17f06 | 136 | * @param address The address to set for the slave (ignoring the least |
emilmont | 44:24d45a770a51 | 137 | * signifcant bit). If set to 0, the slave will only respond to the |
emilmont | 44:24d45a770a51 | 138 | * general call address. |
simon | 22:9114680c05da | 139 | */ |
simon | 22:9114680c05da | 140 | void address(int address); |
simon | 22:9114680c05da | 141 | |
emilmont | 43:e2ed12d17f06 | 142 | /** Reset the I2C slave back into the known ready receiving state. |
simon | 22:9114680c05da | 143 | */ |
simon | 22:9114680c05da | 144 | void stop(void); |
simon | 22:9114680c05da | 145 | |
simon | 22:9114680c05da | 146 | protected: |
emilmont | 44:24d45a770a51 | 147 | i2c_t _i2c; |
simon | 22:9114680c05da | 148 | }; |
simon | 22:9114680c05da | 149 | |
simon | 22:9114680c05da | 150 | } // namespace mbed |
simon | 22:9114680c05da | 151 | |
simon | 22:9114680c05da | 152 | #endif |
emilmont | 27:7110ebee3484 | 153 | |
emilmont | 27:7110ebee3484 | 154 | #endif |