Running NuttX on LPCXpresso54628 OM13098

Today I tested NuttX running the LVGL demo on LPCXpresso54628.

Here you can find the steps needed to get it working.

First compile the firmware to create the nuttx.bin:

$ ./tools/configure.sh lpcxpresso-lpc54628/lvgl
$ make menuconfig
$ make

Now you can flash the firmware using JLinkExe on Linux.

You can use the LPC54608J512 even to flash the LPC54628:

$ sudo JLinkExe -if SWD -device LPC54608J512
SEGGER J-Link Commander V6.32h (Compiled Jul  5 2018 18:15:02)
DLL version V6.32h, compiled Jul  5 2018 18:14:58

Connecting to J-Link via USB...O.K.
Firmware: J-Link ARM V8 compiled Nov 28 2014 13:44:46
Hardware version: V8.00
S/N: 268006167
License(s): FlashBP, GDB
OEM: SEGGER-EDU
VTref=3.293V

Type "connect" to establish a target connection, '?' for help

Run “connect” command:

J-Link> connect
Specify target interface speed [kHz]. : 4000 kHz
Speed>
Device "LPC54608J512" selected.
Connecting to target via SWD
Found SW-DP with ID 0x2BA01477
Found SW-DP with ID 0x2BA01477
Scanning AP map to find all available APs
AP[1]: Stopped AP scan as end of AP map has been reached
AP[0]: AHB-AP (IDR: 0x24770011)
Iterating through AP map to find AHB-AP to use
AP[0]: Core found
AP[0]: AHB-AP ROM base: 0xE00FF000
CPUID register: 0x410FC241. Implementer code: 0x41 (ARM)
Found Cortex-M4 r0p1, Little endian.
FPUnit: 6 code (BP) slots and 2 literal slots
CoreSight components:
ROMTbl[0] @ E00FF000
ROMTbl[0][0]: E000E000, CID: B105E00D, PID: 000BB00C SCS-M7
ROMTbl[0][1]: E0001000, CID: B105E00D, PID: 003BB002 DWT
ROMTbl[0][2]: E0002000, CID: B105E00D, PID: 002BB003 FPB
ROMTbl[0][3]: E0000000, CID: B105E00D, PID: 003BB001 ITM
ROMTbl[0][4]: E0040000, CID: B105900D, PID: 000BB9A1 TPIU
ROMTbl[0][5]: E0041000, CID: B105900D, PID: 000BB925 ETM
Cortex-M4 identified.

Finally flash nuttx.bin using the loadbin command:

J-Link>loadbin ./nuttx.bin 0
Halting CPU for downloading file.
Downloading file [./nuttx.bin]...
Comparing flash   [100%] Done.
Erasing flash     [100%] Done.
Programming flash [100%] Done.
Verifying flash   [100%] Done.
J-Link: Flash download: Bank 0 @ 0x00000000: 1 range affected (360448 bytes)
J-Link: Flash download: Total time needed: 3.314s (Prepare: 0.058s, Compare: 0.009s, Erase: 0.991s, Program: 2.245s, Verify: 0.005s, Restore: 0.003s)
O.K.
J-Link> exit

Reset the board and you should see the touchscreen calibration screen.

And then:

2 thoughts on “Running NuttX on LPCXpresso54628 OM13098”

  1. Hi Alan,

    I’ve some questions about Nuttx:
    1. Is there any tutorial about migration from FreeRTOS to Nuttx (an easier way)?
    2. The compilation results only in binary files, like .hex and .bin, can I generate .elf file to debug with Jlink?
    3. Now, my products have a custom bootloader, can I keep my custom bootloader and if possibly, which the files I need to change (Linker files, more specifically)?
    4. Where can I put my application? “Apps” directory? If yes, how to handle the both projects in eclipse, for example? how to debug both projects in the same time?

    Congratulation for your efforts in Nuttx advertising.

    Reply

    1. Hi Gabriel,
      1. I’m not aware about any documentation about migration, but NuttX is easy you learn as you can see on my videos at NuttX Channel ;
      2. It results in ELF file as well, the file “nuttx” is an ELF file ;
      3. Yes, nuttx can boot from a bootloader, see the pcduino port, it boots from U-Boot ;
      4. You can put it on apps/ directory or you can compile NuttX as library and just load your application on Eclipse, search about it here on my blog.

      Thank you very much Gabriel, nice to see more Brazilians interested on NuttX.

      BR,

      Alan

      Reply

Leave a comment