====== n-LP =====

page building in progress, based on n-DAP... \\  
Form CP12 with 20 pins \\ 
Programmable via JTAG or DFU

<WRAP right 190px nblock  smaller round :en>
<WRAP centeralign>//**n-DAP**// </WRAP>
<WRAP centeralign>{{n-dap-v3-orthographic.jpg?100}}</WRAP>
<WRAP centeralign>mbed enable board </WRAP>
| License        | GPL 2.0 |
| Authors        |NC |
| Contributors   |MC |
| Based on       |  |
| Categories     |  |
| Repo  | [[https://bitbucket.org/nimbus_it/n-dap|Bitbucket]] |

</WRAP>
  * Small generic processor board, Low Power cortex M4


~~TODOLIST ns:nblocks:n-dap completed:no~~
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=====Block Diagram, used as programming/debugging interface=====
{{:nblocks:n-dap-8.jpg?700|}}
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=====Pinout=====
{{:nblocks:n-dap-7.jpg?1000|}}

  * The board has 12 pins, 6 for each side, If the board is used as SWD interface,  only 3 pins for signals and 2 pins for power are needed\\
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=====Background=====

'''LPC11U35''' based CMSIS-DAP programming of ARM Cortex devices via SWD. Appears as a Disk to PC. Tested with mbed firmware.\\
Provides '''mbed-enable''' capability and can be designed-in as an SMD component or used as external programmer/debuger. {{:nblocks:n-dap-4.jpg?|}}\\
Deployed as main CPU in use cases like MODBUS host and client controller, Thermocouple and load-cell interface.\\
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=====Features=====
{{:nblocks:n-dap-3.jpg?|}}
{{:nblocks:n-dap-2.jpg?|}}
  *Breadboard-able: 1/10 inch connector pitch
  *Robust USB mini connector:
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===== n-DAP as small application processor board =====

====Blink example with mbed-CLI====
  * Checking the working target setup// //
{{:nblocks:mbed-cli-1.jpg?400|}}// //
  * compile// //
{{:nblocks:mbed-cli-2.jpg?400|}}// //

  * After pressing [SW4+SW3], then [SW3 only], then [release SW3],CPU is in ISP mode and appears as Disk with name '''"CRP DISABLD"'''//  //
  * Remove previous firmware from CPU flash by deleting the file '''firmware.bin'''//  //
  ***The folder should be empty**, if not then the device can not be programmed//  //
  *Then just drag-drop the new compiled .bin to the mbed board. It should appear as **firmware.bin**
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=====CMSIS-DAP Interface Firmware=====
This is "mbed-enable Firmware"
  *[[https://docs.mbed.com/docs/handbook/en/latest/CMSIS/Interface_Firmware/ |CMSIS-DAP Interface Firmware]]\\
The CMSIS-DAP Interface Firmware provides:
  * **USB Mass Storage Device for drag and drop programming of the target chip**
  * **USB Communications Device Class for Serial Communication with the target chip**
  * **USB HID CMSIS-DAP for debugging**
  * **USB bootloader for updating the interface firmware itself**\\
When n-DAP flash memory is empty or when in ISP mode it appears as a disk named ''CRP DISABLD''\\
If the CMSIS-DAP (named also mbed_HDK) is programmed, then after reset n-DAP appears as a disk with the mame ''MBED''

{{:nblocks:n-dap-18.jpg?150|}}
{{:nblocks:n-dap-17.jpg?150|}}
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{{:nblocks:n-dap-16.jpg?150|}}

===LPC1768===
  *[[https://developer.mbed.org/users/chalikias/code/mbed-HDK/| LPC11U35-Firmware for communicating with LPC1768]] Does not create virtual serial port
  *[[https://os.mbed.com/platforms/SWDAP-LPC11U35/ |SWDAP-LPC11U35 NXP LPC1768 PREBUILD IMAGE]] Does create a virtual serial port **Tested and worked!**

====LPC812====
The same as LPC1768 above

====LPC1114FN28====
  *Firmware to use n-DAP with the non-SMD LPC1114FN28 DIP-28 [[https://developer.mbed.org/teams/Switch-Science/wiki/Firmware-LPC1114FN28| Firmware LPC1114FN28]]

====nRF51822====
  *[[http://www.seeedstudio.com/wiki/Arch_BLE| Seeed studio wiki Arch BLE]]
  *[[http://www.seeedstudio.com/wiki/File:Lpc11u35_nrf51822_if_mbed.bin.zip| Seeed studio wiki File:Lpc11u35 nrf51822 if mbed.bin.zip]]
  *[[https://os.mbed.com/platforms/Y5-LPC11U35-MBUG/#bootloader-for-ble-mbug |Bootloader for BLE mbug]] **Tested and worked!**

====NXP K64F====
  *[[https://os.mbed.com/platforms/SWDAP-LPC11U35/NXP K64F]]
    *[[https://os.mbed.com/media/uploads/chris/lpc11u35_swdap_k64f_if_crc.bin bin]]
  *???? CAN IT WORK FOR TEENSY K20???
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=====Gallery=====
{{:nblocks:n-dap-9b.jpg?433|}}
{{:nblocks:n-dap-10.jpg?400|}}
{{:nblocks:n-dap-11.jpg?400|}}
{{:nblocks:n-dap-12.jpg?400|}}
{{:nblocks:n-dap-13.jpg?400|}}
{{:nblocks:n-dap-14.jpg?400|}}
{{:nblocks:n-dap-15.jpg?400|}}

=====Related articles in this Wiki=====
  *[[ ]]
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-----
  *<todo #engineer:2017-10-31>Update n-DAP photo</todo>
  *<todo #engineer:2017-12-17>Update n-DAP pinout photo: P0.17->P0.22 ADC0; P0.16->P0.12 ADC1; 3.3V->3.3V-OUT; PIN4->5V-FROM-USB-OUT </todo>
  *<todo #engineer:2017-12-17>Move pinout spreadsheet to pcb repository </todo>
  *<todo #engineer:2018-01-02>Add photo of assembled boards </todo>
  *<todo #engineer:2017-12-17>Add block-diagram for CMSIS-DAP programming </todo>

{{tag>nblock CPU modbus }}