n-LP

n-LP

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

n-DAP

mbed enable board

License	GPL 2.0
Authors	NC
Contributors	MC
Based on
Categories
Repo	Bitbucket

Small generic processor board, Low Power cortex M4

nblocks:n-dap
[Nikos]add the code here

Block Diagram, used as programming/debugging interface

Pinout

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

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.
Deployed as main CPU in use cases like MODBUS host and client controller, Thermocouple and load-cell interface.

Features

Breadboard-able: 1/10 inch connector pitch
Robust USB mini connector:

n-DAP as small application processor board

Blink example with mbed-CLI

Checking the working target setup

compile

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

CMSIS-DAP Interface Firmware

This is “mbed-enable 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