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Change heap size in IAR embedded workbench

Question asked by bencsik.gergely on Jul 29, 2014
Latest reply on Jul 29, 2014 by bencsik.gergely

I'm trying to get the USB virual com ports working with a STM32F401 discovery board, using IAR workbench, and the code generated from STM32 Cube MX. 

I found this forum post which should probably help. Changing  CDC_DATA_HS_MAX_PACKET_SIZE to 256 did help at first, it can now initialize, but can't send data. As another post suggests, the heap size should be changed from 0x0200 to 0x0400 - but how can I do that?