Hi @JY2
I would suggest you use the latest read library. v7.07. The recommended IDE is MCUXpresso.
For your issue, you can try the following step,
- Replace the phhalSysSer_IAR.s with new provided
- Path : rdlibtop\Platform\PN7462AU\phROMIntf\phhalSysSer\src
- Change the Heap Selection to heap_3.c from heap_2.c
- For example in phExCcid.ewp file change to
From
<name>$PROJ_DIR$\..\..\RTOS\FreeRTOS\heap_2.c</name>
To <name>$PROJ_DIR$\..\..\RTOS\FreeRTOS\portable\MemMang\heap_3.c</name>
- Change the link configuration file with new Stack/Heap Sizes.
- a In Project options follow bellow steps :


Save .icf file in project location.
Change Debugger Run To Option to main as shown below

JLink Rest option to be set to Normal as below

If this not work, I would suggest you use MCUXpresso IDE.
Regards
Daniel