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

Diff: SPI.h

Revision:
5:62573be585e9
Parent:
4:5d1359a283bc
Child:
11:1c1ebd0324fa
--- a/SPI.h	Thu Nov 27 16:23:24 2008 +0000
+++ b/SPI.h	Thu Jan 22 18:32:40 2009 +0000
@@ -1,7 +1,8 @@
 /* mbed Microcontroller Library - SPI
- * Copyright (c) 2007-2008, sford
+ * Copyright (c) 2006-2009 ARM Limited. All rights reserved. 
+ * sford
  */
- 
+
 #ifndef MBED_SPI_H
 #define MBED_SPI_H
 
@@ -12,13 +13,27 @@
 
 /* Class: SPI
  *  A SPI Master, used for communicating with SPI slave devices
+ *
+ * The default format is set to 8-bits, mode 0, and a clock frequency of 1MHz
+ *
+ * Most SPI devices will also require Chip Select and Reset signals. These
+ * can be controlled using <DigitalOut> pins
+ *
+ * Example:
+ * > // Send a byte to a SPI slave, and record the response
+ * >
+ * > #include "mbed.h"
+ * >
+ * > SPI device(5, 6, 7); // mosi, miso, sclk
+ * >
+ * > int main() {
+ * >     int response = device.write(0xFF);
+ * > }
  */ 
 class SPI : public Base {
 
 public:
 
-	/* Group: Configuration Methods */
-	
 	/* Constructor: SPI
 	 *  Create a SPI master connected to the specified pins
 	 *
@@ -26,21 +41,33 @@
 	 *  mosi - SPI Master Out, Slave In pin
 	 *  miso - SPI Master In, Slave Out pin
 	 *  sclk - SPI Clock pin
+     *  name - (optional) A string to identify the object     
      *
 	 * Pin Options:
 	 *  (5, 6, 7) or (11, 12, 13)
+	 *
+	 *  mosi and miso can each be specfied as NC (not connected) e.g. (5, NC, 7)
 	 */
 	SPI(int mosi, int miso, int sclk, const char *name = NULL);
 	
 	/* Function: format
-	 *  Set the transmission format
+	 *  Configure the data transmission format
 	 *
 	 * Variables:
-	 *  bits - Number of bits per frame (4 - 16, default = 8)
-	 *  polarity - Clock polarity, 0 = Steady state low (default), 1 = Steady state high  
-	 *  phase - Clock phase, 0 = Capture on first edge (default), 1 = Capture on second edge
+	 *  bits - Number of bits per SPI frame (4 - 16)
+	 *  mode - Clock polarity and phase mode (0 - 3)
+     *
+ 	 * > mode | POL PHA 
+     * > -----+--------	 
+     * >   0  |  0   0 
+	 * >   1  |  0   1
+     * >   2  |  1   0 
+	 * >   3  |  1   1
 	 */
-	void format(int bits = 8, int polarity = 0, int phase = 0);
+	void format(int bits, int mode = 0);
+
+    // old one, to be removed over time...
+	void format(int bits, int polarity, int phase) __attribute__((deprecated));
 	
 	/* Function: frequency
 	 *  Set the bus clock frequency
@@ -50,8 +77,6 @@
 	 */
 	void frequency(int hz = 1000000);
 	
-	/* Group: Access Methods */
-		
 	/* Function: write
 	 *  Write to the SPI Slave and return the response
 	 *
@@ -61,6 +86,9 @@
 	 */
   	int write(int value);
 
+    virtual const struct rpc_method *get_rpc_methods();
+    static struct rpc_class *get_rpc_class();
+
 protected:
 
 	void configure();