We are having issues flashing the LPC55S69J MCU. Flashing is performed via SWD.
This is the error message the IDE shows: Wire ACK Fault in DAP access
We've confirmed we have the right MCU orientation, correct voltages, etc. We are using the same setup that successfully flashes the LPC55S69-EVK.
Is there a particular pin configuration needed for the LPC55S69 MCU to flash? Anything missing from the setup detailed?
** Setup **
Hardware platforms used:
- Custom designed board
- Breakout board with LPC55S69J MCU soldered on (Digikey PN: PA0096-ND)
- MCU-LINK board
Hardware notes:
MCU: LPC55S69JBD64K
SWDIO: pulled up via 100k; connected to pin 5 of MCU
SWCLK: pulled down via 100k; connected to pin 6 of MCU
VBAT_PMU pulled high 3V3
Reset line observed high; pulls low from programmer
All VDD pins externally connected to 3V3
All VSS pins externally connected to ground
USB1 (high speed) used
Setup information:
NXP Eval kit used: LPC55S69-EVK
NXP Programmer: MCU-LINK
PC/IDE info:
Product: MCUXpresso IDE
Version: MCUXpresso IDE v11.6.0 [Build 8187] [2022-07-13]
Operating system: Windows 10
VM: OpenJDK 64-Bit Server VM (64 bit)
NXP LPCXpresso55S69 Development Board: https://www.nxp.com/design/development-boards/lpcxpresso-boards/lpcxpresso55s69-development-board:LP...
NXP MCU-Link Debug Probe: https://www.nxp.com/design/microcontrollers-developer-resources/mcu-link-debug-probe:MCU-LINK
Log information generated the IDE:
MCUXpresso IDE RedlinkMulti Driver v11.6 (Jul 12 2022 16:58:24 - crt_emu_cm_redlink build 4)
Found chip XML file in C:/ (removed)
( 5) Remote configuration complete
Reconnected to existing LinkServer process.
Connecting to probe 1 core 0 (using server started externally) reports:
'Ee(42). Could not connect to core.'
Retrying...
Reconnected to existing LinkServer process.
Server OK but no connection to probe 1 core 0 (after 3 attempts) - Ee(42). Could not connect to core.
Failed on connect: Ee(42). Could not connect to core.
No connection to chip's debug port
