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@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.ford@mbed.co.uk | 0:82220227f4fa | 16 | #ifndef MBED_I2C_H |
simon.ford@mbed.co.uk | 0:82220227f4fa | 17 | #define MBED_I2C_H |
simon.ford@mbed.co.uk | 0:82220227f4fa | 18 | |
emilmont | 44:24d45a770a51 | 19 | #include "platform.h" |
emilmont | 27:7110ebee3484 | 20 | |
emilmont | 27:7110ebee3484 | 21 | #if DEVICE_I2C |
emilmont | 27:7110ebee3484 | 22 | |
emilmont | 44:24d45a770a51 | 23 | #include "i2c_api.h" |
simon.ford@mbed.co.uk | 0:82220227f4fa | 24 | |
simon.ford@mbed.co.uk | 0:82220227f4fa | 25 | namespace mbed { |
simon.ford@mbed.co.uk | 0:82220227f4fa | 26 | |
emilmont | 43:e2ed12d17f06 | 27 | /** An I2C Master, used for communicating with I2C slave devices |
rolf.meyer@arm.com | 11:1c1ebd0324fa | 28 | * |
rolf.meyer@arm.com | 11:1c1ebd0324fa | 29 | * Example: |
emilmont | 43:e2ed12d17f06 | 30 | * @code |
emilmont | 43:e2ed12d17f06 | 31 | * // Read from I2C slave at address 0x62 |
emilmont | 43:e2ed12d17f06 | 32 | * |
emilmont | 43:e2ed12d17f06 | 33 | * #include "mbed.h" |
emilmont | 43:e2ed12d17f06 | 34 | * |
emilmont | 43:e2ed12d17f06 | 35 | * I2C i2c(p28, p27); |
emilmont | 43:e2ed12d17f06 | 36 | * |
emilmont | 43:e2ed12d17f06 | 37 | * int main() { |
emilmont | 43:e2ed12d17f06 | 38 | * int address = 0x62; |
emilmont | 43:e2ed12d17f06 | 39 | * char data[2]; |
emilmont | 43:e2ed12d17f06 | 40 | * i2c.read(address, data, 2); |
emilmont | 43:e2ed12d17f06 | 41 | * } |
emilmont | 43:e2ed12d17f06 | 42 | * @endcode |
simon.ford@mbed.co.uk | 0:82220227f4fa | 43 | */ |
emilmont | 44:24d45a770a51 | 44 | class I2C { |
simon.ford@mbed.co.uk | 0:82220227f4fa | 45 | |
simon.ford@mbed.co.uk | 0:82220227f4fa | 46 | public: |
simon | 20:029aa53d7323 | 47 | enum RxStatus { |
emilmont | 44:24d45a770a51 | 48 | NoData, |
emilmont | 44:24d45a770a51 | 49 | MasterGeneralCall, |
emilmont | 44:24d45a770a51 | 50 | MasterWrite, |
emilmont | 44:24d45a770a51 | 51 | MasterRead |
simon | 20:029aa53d7323 | 52 | }; |
simon | 20:029aa53d7323 | 53 | |
simon | 21:3944f1e2fa4f | 54 | enum Acknowledge { |
emilmont | 44:24d45a770a51 | 55 | NoACK = 0, |
emilmont | 44:24d45a770a51 | 56 | ACK = 1 |
simon | 21:3944f1e2fa4f | 57 | }; |
simon | 21:3944f1e2fa4f | 58 | |
emilmont | 43:e2ed12d17f06 | 59 | /** Create an I2C Master interface, connected to the specified pins |
rolf.meyer@arm.com | 11:1c1ebd0324fa | 60 | * |
emilmont | 43:e2ed12d17f06 | 61 | * @param sda I2C data line pin |
emilmont | 43:e2ed12d17f06 | 62 | * @param scl I2C clock line pin |
rolf.meyer@arm.com | 11:1c1ebd0324fa | 63 | */ |
emilmont | 44:24d45a770a51 | 64 | I2C(PinName sda, PinName scl); |
simon.ford@mbed.co.uk | 0:82220227f4fa | 65 | |
emilmont | 43:e2ed12d17f06 | 66 | /** Set the frequency of the I2C interface |
rolf.meyer@arm.com | 11:1c1ebd0324fa | 67 | * |
emilmont | 43:e2ed12d17f06 | 68 | * @param hz The bus frequency in hertz |
rolf.meyer@arm.com | 11:1c1ebd0324fa | 69 | */ |
rolf.meyer@arm.com | 11:1c1ebd0324fa | 70 | void frequency(int hz); |
rolf.meyer@arm.com | 11:1c1ebd0324fa | 71 | |
emilmont | 43:e2ed12d17f06 | 72 | /** Read from an I2C slave |
simon.ford@mbed.co.uk | 0:82220227f4fa | 73 | * |
emilmont | 44:24d45a770a51 | 74 | * Performs a complete read transaction. The bottom bit of |
emilmont | 44:24d45a770a51 | 75 | * the address is forced to 1 to indicate a read. |
rolf.meyer@arm.com | 12:f63353af7be8 | 76 | * |
emilmont | 43:e2ed12d17f06 | 77 | * @param address 8-bit I2C slave address [ addr | 1 ] |
emilmont | 55:d722ed6a4237 | 78 | * @param data Pointer to the byte-array to read data in to |
emilmont | 43:e2ed12d17f06 | 79 | * @param length Number of bytes to read |
emilmont | 43:e2ed12d17f06 | 80 | * @param repeated Repeated start, true - don't send stop at end |
emilmont | 43:e2ed12d17f06 | 81 | * |
emilmont | 43:e2ed12d17f06 | 82 | * @returns |
emilmont | 43:e2ed12d17f06 | 83 | * 0 on success (ack), |
emilmont | 43:e2ed12d17f06 | 84 | * non-0 on failure (nack) |
emilmont | 55:d722ed6a4237 | 85 | */ |
emilmont | 44:24d45a770a51 | 86 | int read(int address, char *data, int length, bool repeated = false); |
simon.ford@mbed.co.uk | 0:82220227f4fa | 87 | |
emilmont | 43:e2ed12d17f06 | 88 | /** Read a single byte from the I2C bus |
simon | 21:3944f1e2fa4f | 89 | * |
emilmont | 43:e2ed12d17f06 | 90 | * @param ack indicates if the byte is to be acknowledged (1 = acknowledge) |
emilmont | 43:e2ed12d17f06 | 91 | * |
emilmont | 43:e2ed12d17f06 | 92 | * @returns |
emilmont | 43:e2ed12d17f06 | 93 | * the byte read |
simon | 21:3944f1e2fa4f | 94 | */ |
simon | 21:3944f1e2fa4f | 95 | int read(int ack); |
simon | 21:3944f1e2fa4f | 96 | |
emilmont | 43:e2ed12d17f06 | 97 | /** Write to an I2C slave |
rolf.meyer@arm.com | 11:1c1ebd0324fa | 98 | * |
emilmont | 44:24d45a770a51 | 99 | * Performs a complete write transaction. The bottom bit of |
emilmont | 44:24d45a770a51 | 100 | * the address is forced to 0 to indicate a write. |
rolf.meyer@arm.com | 12:f63353af7be8 | 101 | * |
emilmont | 43:e2ed12d17f06 | 102 | * @param address 8-bit I2C slave address [ addr | 0 ] |
emilmont | 55:d722ed6a4237 | 103 | * @param data Pointer to the byte-array data to send |
emilmont | 43:e2ed12d17f06 | 104 | * @param length Number of bytes to send |
emilmont | 43:e2ed12d17f06 | 105 | * @param repeated Repeated start, true - do not send stop at end |
emilmont | 43:e2ed12d17f06 | 106 | * |
emilmont | 43:e2ed12d17f06 | 107 | * @returns |
emilmont | 43:e2ed12d17f06 | 108 | * 0 on success (ack), |
emilmont | 43:e2ed12d17f06 | 109 | * non-0 on failure (nack) |
emilmont | 55:d722ed6a4237 | 110 | */ |
simon | 20:029aa53d7323 | 111 | int write(int address, const char *data, int length, bool repeated = false); |
simon | 21:3944f1e2fa4f | 112 | |
emilmont | 43:e2ed12d17f06 | 113 | /** Write single byte out on the I2C bus |
emilmont | 43:e2ed12d17f06 | 114 | * |
emilmont | 43:e2ed12d17f06 | 115 | * @param data data to write out on bus |
simon | 21:3944f1e2fa4f | 116 | * |
emilmont | 43:e2ed12d17f06 | 117 | * @returns |
emilmont | 43:e2ed12d17f06 | 118 | * '1' if an ACK was received, |
emilmont | 43:e2ed12d17f06 | 119 | * '0' otherwise |
simon | 21:3944f1e2fa4f | 120 | */ |
simon | 21:3944f1e2fa4f | 121 | int write(int data); |
simon | 21:3944f1e2fa4f | 122 | |
emilmont | 43:e2ed12d17f06 | 123 | /** Creates a start condition on the I2C bus |
simon | 21:3944f1e2fa4f | 124 | */ |
emilmont | 44:24d45a770a51 | 125 | |
simon | 21:3944f1e2fa4f | 126 | void start(void); |
simon | 21:3944f1e2fa4f | 127 | |
emilmont | 43:e2ed12d17f06 | 128 | /** Creates a stop condition on the I2C bus |
simon | 21:3944f1e2fa4f | 129 | */ |
simon | 21:3944f1e2fa4f | 130 | void stop(void); |
simon | 21:3944f1e2fa4f | 131 | |
simon.ford@mbed.co.uk | 0:82220227f4fa | 132 | protected: |
rolf.meyer@arm.com | 11:1c1ebd0324fa | 133 | void aquire(); |
emilmont | 55:d722ed6a4237 | 134 | |
emilmont | 44:24d45a770a51 | 135 | i2c_t _i2c; |
simon | 20:029aa53d7323 | 136 | static I2C *_owner; |
simon | 20:029aa53d7323 | 137 | int _hz; |
simon.ford@mbed.co.uk | 0:82220227f4fa | 138 | }; |
simon.ford@mbed.co.uk | 0:82220227f4fa | 139 | |
rolf.meyer@arm.com | 11:1c1ebd0324fa | 140 | } // namespace mbed |
simon.ford@mbed.co.uk | 0:82220227f4fa | 141 | |
simon.ford@mbed.co.uk | 1:6b7f447ca868 | 142 | #endif |
emilmont | 27:7110ebee3484 | 143 | |
emilmont | 27:7110ebee3484 | 144 | #endif |