Configuring memory usage in the LPC1768 processor may be done in two locations in the μVision integrated development environment (IDE):

• in the start-up assembly file startup_LPC17xx.s, and
• with Project→Options for Target 'Target'.

Stack and heap size

If you open the file startup_LPC17xx.s, you will note that you can select a Configuration Wizard as a tab at the bottom, as shown in Figure 1.

Figure 1. The open file startup_LPC17xx.s with two tabs: Text Editor and Configuration Wizard.

Now, it is possible to edit the file directly; however, the configuration wizard helps you by doing some rudimentary error checking.

These provide both the stack size and heap size of the

Note: the RL-FlashFS (flash file system) allows the number of open files to be set in configuration of File_Config.c