Hi,
I’m using an Adafruit Grand Central with a Segger J-Link EDU interface. Aside from timer issues that I’ve mentioned in another thread, I am now seeing a new error The connected J-Link (S/N 801018314) is low on memory. Target connection cannot be established
I read on the Segger support site that this might mean that the J-Link connection was not closed properly.
https://forum.segger.com/index.php/Thread/4998-SOLVED-J-Link-is-low-on-memory/
So my question is “how shall I avoid this situation while using the debugger interface in PlatformIO (running within VSCode)?”
I’ve attached the output from the debug console below.
Thanks in advance.
CONFIGURATION: https://docs.platformio.org/page/boards/atmelsam/adafruit_grandcentral_m4.html
PLATFORM: Atmel SAM 4.5.1 > Adafruit Grand Central M4
HARDWARE: SAMD51P20A 120MHz, 256KB RAM, 1MB Flash
DEBUG: Current (jlink) External (atmel-ice, jlink)
PACKAGES:
- framework-arduino-samd-adafruit 1.5.14
- framework-cmsis 1.40500.0 (4.5.0)
- framework-cmsis-atmel 1.2.0
- toolchain-gccarmnoneeabi 1.70201.0 (7.2.1)
LDF: Library Dependency Finder -> http://bit.ly/configure-pio-ldf
LDF Modes: Finder ~ chain, Compatibility ~ soft
Found 10 compatible libraries
Scanning dependencies...
No dependencies
Building in debug mode
Checking size .pio/build/adafruit_grandcentral_m4/firmware.elf
Advanced Memory Usage is available via "PlatformIO Home > Project Inspect"
RAM: [ ] 1.4% (used 3784 bytes from 262144 bytes)
Flash: [ ] 1.7% (used 18200 bytes from 1048576 bytes)
========================= [SUCCESS] Took 5.95 seconds =========================
SEGGER J-Link GDB Server V6.52
Command Line Version
JLinkARM.dll V6.52 (DLL compiled Sep 27 2019 17:53:31)
Command line: -singlerun -if SWD -select USB -device ATSAMD51P20 -port 2331
-----GDB Server start settings-----
GDBInit file: none
GDB Server Listening port: 2331
SWO raw output listening port: 2332
Terminal I/O port: 2333
Accept remote connection: yes
Generate logfile: off
Verify download: off
Init regs on start: off
Silent mode: off
Single run mode: on
Target connection timeout: 0 ms
------J-Link related settings------
J-Link Host interface: USB
J-Link script: none
J-Link settings file: none
------Target related settings------
Target device: ATSAMD51P20
Target interface: SWD
Target interface speed: 4000kHz
Target endian: little
Connecting to J-Link...
J-Link is connected.
Firmware: J-Link EDU Mini V1 compiled Jul 17 2020 16:25:21
Hardware: V1.00
S/N: 801018314
Feature(s): FlashBP, GDB
Checking target voltage...
Target voltage: 3.30 V
Listening on TCP/IP port 2331
Connecting to target...
ERROR: The connected J-Link (S/N 801018314) is low on memory. Target connection cannot be established
ERROR: Could not connect to target.
Target connection failed. GDBServer will be closed...
Restoring target state and closing J-Link connection...
Shutting down...
undefinedCould not connect to target.
Please check power, connection and settings.