topic Setting Heap and Stack sizes for MK22 in MCUXpresso IDE

Setting Heap and Stack sizes for MK22

Solarhacker — Mon, 08 Feb 2021 20:44:46 GMT

Using MCUXpresso IDE v11.2.1 with SDK_2.8.2_MK22FN128xxx12, Redlib (none)

Trying to change stack and heap size from default. When I click on Heap or Stack Size (Default) No dialog is displayed. I've tried --defsym=_HeapSize=0x0100 --defsym=_StackSize=0x0200 in linker flags

My project doesn't use any heap and stack requirements are less the 512 bytes. Currently out of 24K of RAM 7.5K are being consumed by unused heap and stack

>Darren

Re: Setting Heap and Stack sizes for MK22

frank_m — Tue, 09 Feb 2021 10:21:12 GMT

Have you tried to enter approriate size values in the shown "Settings" screen, instead of leaving it at "Default" ?

There appears no additional screen for me, but I can manually enter values.

Version 11.1. for a LPC546xx, though.

Re: Setting Heap and Stack sizes for MK22

ErichStyger — Tue, 09 Feb 2021 10:49:19 GMT

You can change the value from the default:

Click into the field and enter a value.

I hope this helps,

Erich

Re: Setting Heap and Stack sizes for MK22

Solarhacker — Tue, 09 Feb 2021 19:24:45 GMT

I finally got it to work. When I click on "default" stack size, nothing changes on display. if I enter a value and then left click again, value updates. Not expected dialog behavior.