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 /media/uploads/k4zuki/mbedshield050.brd.png
  • Schematic photo vvv /media/uploads/k4zuki/mbedshield050.sch.png
  • Functionality photo vvv /media/uploads/k4zuki/mbedshieldfunc.jpg

Latest eagle files

PCB >> /media/uploads/k4zuki/mbedshield050.brd
SCH >> /media/uploads/k4zuki/mbedshield050.sch

BIG changes from previous version

  1. Ethernet RJ45 connector is removed.
    1. http://mbed.org/components/Seeed-Ethernet-Shield-V20/ is the biggest hint to use Ethernet!
  2. Most ALL of components can be bought at Akizuki http://akizukidenshi.com/
    1. But sorry, they do not send parts to abroad
  3. Pinout is changed!
arduino0.4.00.5.0
D4p12p21
D5p11p22
MOSI_nonep11
MISO_nonep12
SCK_nonep13

This design has bug(s)

  1. I2C functional pin differs between 1768 and 11U24.

Fixed bugs here

  1. 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!
  2. 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

SPISlave.h@20:029aa53d7323, 2010-06-03 (annotated)

Committer:
simon
Date:
Thu Jun 03 11:17:50 2010 +0000
Revision:
20:029aa53d7323
Child:
27:7110ebee3484
* Add SPISlave, SPIHalfDuplex, SerialHalfDuplex

 * Add I2C repeated start

 * Add ethernet set_link()

 * Add documentation for wait()

Who changed what in which revision?

UserRevisionLine numberNew contents of line
simon 20:029aa53d7323 1 /* mbed Microcontroller Library - SPI
simon 20:029aa53d7323 2 * Copyright (c) 2010 ARM Limited. All rights reserved.
simon 20:029aa53d7323 3 * sford
simon 20:029aa53d7323 4 */
simon 20:029aa53d7323 5
simon 20:029aa53d7323 6 #ifndef MBED_SPISLAVE_H
simon 20:029aa53d7323 7 #define MBED_SPISLAVE_H
simon 20:029aa53d7323 8
simon 20:029aa53d7323 9 #include "platform.h"
simon 20:029aa53d7323 10 #include "PinNames.h"
simon 20:029aa53d7323 11 #include "PeripheralNames.h"
simon 20:029aa53d7323 12 #include "Base.h"
simon 20:029aa53d7323 13
simon 20:029aa53d7323 14 namespace mbed {
simon 20:029aa53d7323 15
simon 20:029aa53d7323 16 /* Class: SPISlave
simon 20:029aa53d7323 17 * A SPI slave, used for communicating with a SPI Master device
simon 20:029aa53d7323 18 *
simon 20:029aa53d7323 19 * The default format is set to 8-bits, mode 0, and a clock frequency of 1MHz
simon 20:029aa53d7323 20 *
simon 20:029aa53d7323 21 * Example:
simon 20:029aa53d7323 22 * > // Reply to a SPI master as slave
simon 20:029aa53d7323 23 * >
simon 20:029aa53d7323 24 * > #include "mbed.h"
simon 20:029aa53d7323 25 * >
simon 20:029aa53d7323 26 * > SPISlave device(p5, p6, p7, p8); // mosi, miso, sclk, ssel
simon 20:029aa53d7323 27 * >
simon 20:029aa53d7323 28 * > int main() {
simon 20:029aa53d7323 29 * > device.reply(0x00); // Prime SPI with first reply
simon 20:029aa53d7323 30 * > while(1) {
simon 20:029aa53d7323 31 * > if(device.receive()) {
simon 20:029aa53d7323 32 * > int v = device.read(); // Read byte from master
simon 20:029aa53d7323 33 * > v = (v + 1) % 0x100; // Add one to it, modulo 256
simon 20:029aa53d7323 34 * > device.reply(v); // Make this the next reply
simon 20:029aa53d7323 35 * > }
simon 20:029aa53d7323 36 * > }
simon 20:029aa53d7323 37 * > }
simon 20:029aa53d7323 38 */
simon 20:029aa53d7323 39 class SPISlave : public Base {
simon 20:029aa53d7323 40
simon 20:029aa53d7323 41 public:
simon 20:029aa53d7323 42
simon 20:029aa53d7323 43 /* Constructor: SPI
simon 20:029aa53d7323 44 * Create a SPI slave connected to the specified pins
simon 20:029aa53d7323 45 *
simon 20:029aa53d7323 46 * Variables:
simon 20:029aa53d7323 47 * mosi - SPI Master Out, Slave In pin
simon 20:029aa53d7323 48 * miso - SPI Master In, Slave Out pin
simon 20:029aa53d7323 49 * sclk - SPI Clock pin
simon 20:029aa53d7323 50 * ssel - SPI chip select pin
simon 20:029aa53d7323 51 * name - (optional) A string to identify the object
simon 20:029aa53d7323 52 *
simon 20:029aa53d7323 53 * Pin Options:
simon 20:029aa53d7323 54 * (5, 6, 7i, 8) or (11, 12, 13, 14)
simon 20:029aa53d7323 55 *
simon 20:029aa53d7323 56 * mosi or miso can be specfied as NC if not used
simon 20:029aa53d7323 57 */
simon 20:029aa53d7323 58 SPISlave(PinName mosi, PinName miso, PinName sclk, PinName ssel,
simon 20:029aa53d7323 59 const char *name = NULL);
simon 20:029aa53d7323 60
simon 20:029aa53d7323 61 /* Function: format
simon 20:029aa53d7323 62 * Configure the data transmission format
simon 20:029aa53d7323 63 *
simon 20:029aa53d7323 64 * Variables:
simon 20:029aa53d7323 65 * bits - Number of bits per SPI frame (4 - 16)
simon 20:029aa53d7323 66 * mode - Clock polarity and phase mode (0 - 3)
simon 20:029aa53d7323 67 *
simon 20:029aa53d7323 68 * > mode | POL PHA
simon 20:029aa53d7323 69 * > -----+--------
simon 20:029aa53d7323 70 * > 0 | 0 0
simon 20:029aa53d7323 71 * > 1 | 0 1
simon 20:029aa53d7323 72 * > 2 | 1 0
simon 20:029aa53d7323 73 * > 3 | 1 1
simon 20:029aa53d7323 74 */
simon 20:029aa53d7323 75 void format(int bits, int mode = 0);
simon 20:029aa53d7323 76
simon 20:029aa53d7323 77 /* Function: frequency
simon 20:029aa53d7323 78 * Set the spi bus clock frequency
simon 20:029aa53d7323 79 *
simon 20:029aa53d7323 80 * Variables:
simon 20:029aa53d7323 81 * hz - SCLK frequency in hz (default = 1MHz)
simon 20:029aa53d7323 82 */
simon 20:029aa53d7323 83 void frequency(int hz = 1000000);
simon 20:029aa53d7323 84
simon 20:029aa53d7323 85 /* Function: receive
simon 20:029aa53d7323 86 * Polls the SPI to see if data has been received
simon 20:029aa53d7323 87 *
simon 20:029aa53d7323 88 * Variables:
simon 20:029aa53d7323 89 * returns - zero if no data, 1 otherwise
simon 20:029aa53d7323 90 */
simon 20:029aa53d7323 91 int receive(void);
simon 20:029aa53d7323 92
simon 20:029aa53d7323 93 /* Function: read
simon 20:029aa53d7323 94 * Retrieve data from receive buffer as slave
simon 20:029aa53d7323 95 *
simon 20:029aa53d7323 96 * Variables:
simon 20:029aa53d7323 97 * returns - the data in the receive buffer
simon 20:029aa53d7323 98 */
simon 20:029aa53d7323 99 int read(void);
simon 20:029aa53d7323 100
simon 20:029aa53d7323 101 /* Function: reply
simon 20:029aa53d7323 102 * Fill the transmission buffer with the value to be written out
simon 20:029aa53d7323 103 * as slave on the next received message from the master.
simon 20:029aa53d7323 104 *
simon 20:029aa53d7323 105 * Variables:
simon 20:029aa53d7323 106 * value - the data to be transmitted next
simon 20:029aa53d7323 107 */
simon 20:029aa53d7323 108 void reply(int value);
simon 20:029aa53d7323 109
simon 20:029aa53d7323 110 protected:
simon 20:029aa53d7323 111
simon 20:029aa53d7323 112 SPIName _spi;
simon 20:029aa53d7323 113
simon 20:029aa53d7323 114 int _bits;
simon 20:029aa53d7323 115 int _mode;
simon 20:029aa53d7323 116 int _hz;
simon 20:029aa53d7323 117
simon 20:029aa53d7323 118 };
simon 20:029aa53d7323 119
simon 20:029aa53d7323 120 } // namespace mbed
simon 20:029aa53d7323 121
simon 20:029aa53d7323 122 #endif