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

LPC1768/IAR/LPC17xx.icf

Committer:
emilmont
Date:
2013-01-16
Revision:
56:3753e96f3c8b
Child:
58:0954ebd79f59

File content as of revision 56:3753e96f3c8b:

/*###ICF### Section handled by ICF editor, don't touch! ****/
/*-Editor annotation file-*/
/* IcfEditorFile="$TOOLKIT_DIR$\config\ide\IcfEditor\cortex_v1_0.xml" */
/*-Specials-*/
define symbol __ICFEDIT_intvec_start__ = 0x00000000;
/*-Memory Regions-*/
define symbol __ICFEDIT_region_ROM_start__   = 0x00000000;
define symbol __ICFEDIT_region_ROM_end__     = 0x0007FFFF;
define symbol __ICFEDIT_region_RAM_start__   = 0x10000000;
define symbol __ICFEDIT_region_RAM_end__     = 0x1000FFDF;
/*-Sizes-*/
define symbol __ICFEDIT_size_cstack__   = 0x400;
define symbol __ICFEDIT_size_heap__     = 0x200;
/**** End of ICF editor section. ###ICF###*/

define symbol __CRP_start__   = 0x000002FC;
define symbol __CRP_end__     = 0x000002FF;

/* Memory used by ISP, and 32 bytes from top of RAM*/
define symbol __ISP_start__   = 0x10000118;
define symbol __ISP_end__     = 0x100001FF;

define memory mem with size = 4G;
define region ROM_region   = mem:[from __ICFEDIT_region_ROM_start__   to __ICFEDIT_region_ROM_end__] - mem:[from  __CRP_start__ to __CRP_end__];
define region RAM_region   = mem:[from __ICFEDIT_region_RAM_start__   to __ICFEDIT_region_RAM_end__] - mem:[from  __ISP_start__ to __ISP_end__];
define region CRP_region   = mem:[from  __CRP_start__ to __CRP_end__];

define symbol _AHB_RAM_start__  = 0x2007C000;
define symbol _AHB_RAM_end__    = 0x20083FFF;
define region AHB_RAM_region = mem:[from _AHB_RAM_start__ to _AHB_RAM_end__];

define block CSTACK    with alignment = 8, size = __ICFEDIT_size_cstack__   { };
define block HEAP      with alignment = 8, size = __ICFEDIT_size_heap__     { };

initialize by copy with packing = zeros { readwrite };
do not initialize  { section .noinit };

place at address mem:__ICFEDIT_intvec_start__ { section .intvec };
place at address mem:0x2FC { section CRPKEY };
place in ROM_region     { readonly };
place in RAM_region     { readwrite,
                          block CSTACK, block HEAP };
place in AHB_RAM_region { section USB_RAM };
place in CRP_region  		{ section .crp };