No space in execution regions errors when using u8g2 library

RE: No space in execution regions errors when using u8g2 library

Jørgen Holmefjord — Fri, 08 Dec 2017 08:02:47 GMT

Please have a look at the Keil ARM documentation.

RE: No space in execution regions errors when using u8g2 library

Stas — Wed, 06 Dec 2017 13:16:14 GMT

I understood why I was hanging in the hardfault mem and fixed it was an incorrectly installed IRAM size that exceeded the real size that has nRF52. But Keil warmly outputs 'No space' error at any optimization level. Here's the link (github.com/.../u8g2) to the library I'm using. If I do not use fonts then the size is significantly reduced but still not enough to fit in 64KB(only reduced when using the optimization level 0 on the other levels nothing changes) . I need Keil not to add non-used variables to the assembly. The font file occupies 13MB and it stands out from the individual arrays of variables of type unt8_t and about one thousand in size and there are several tens of such arrays but in the current project only one such array of 837 elements is used.

RE: No space in execution regions errors when using u8g2 library

Jørgen Holmefjord — Wed, 06 Dec 2017 12:44:33 GMT

You should check the library documentation or ask the developers how to include only specific fonts. Putting 4 MB into the RAM of the nRF52 will not work. It looks like you have a hardfault, does the code work if you do not include the fonts? Could you share your code/project for debugging?