Hi, all I’m having this strange problem using freertos. So basically in main.c I use the following code to statically assign xQueue to address 0x0820F000. static QueueHandle_t xQueue __attribute__ ((section("0x0820F000"))) = NULL; Using objdump -t shows that xQueue was exactly at 0x0820F000. Howe…

A non const variable can not be assigned to flash memory but must reside in RAM. You didn’t specify which POD you are using, but the address looks like a Cortex Flash address. Or does your POD map 0x820f000 to RAM? The section syntax looks unusual to me. What compiler/linker are you using?

Hi, Thanks for your responses! [image] RAc: A non-const variable can not be assigned to flash memory but must reside in RAM. The xQueue might change somewhere else, so I do not want to make it const. [image] RAc: You didn’t specify which POD Sorry, I’m still new to FreeRTOS, the POD…

[image] rtrtrt: [image] RAc: A non-const variable can not be assigned to flash memory but must reside in RAM. The xQueue might change somewhere else, so I do not want to make it const. That’s the point. Your variable is a variable, meaning it is subject to manipulation, thus it can’t r…

[image] RAc: Sorry, I should have asked what MCU you are using. POD is an older term for “Processor or Derivative.” It’s not a FreeRTOS specific term. Again, the question aims at what kind of memory is behind the address 0x820f000. Is it a RAM or Flash address on your target? So basically all…

No problem. I once posted a link to a site I found reasonably good here (see embedded link in that post): [image] Fatal error: cstdint: No such file or directory Libraries Hi Prakash, I don’t mean to sound condescending, but I would very strongly advise you to familiariz…

Is: [image] rtrtrt: static QueueHandle_t xQueue __attribute__ ((section("0x0820F000"))) = NULL; valid syntax to place a variable at a known address? If so, I’ve never seen it done this way and can’t find any documentation that says this can be done. I think this line is saying to place the…

Varible static link during compile time

Kernel

RAc August 24, 2021, 3:37pm 6

No problem. I once posted a link to a site I found reasonably good here (see embedded link in that post):

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Varible static link during compile time

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