STM CircleOS forum / Circle Os organization

micronpn · 2009-06-18 23:09:15

I am starting to experiment with STM32Fxxx and so with Primer2. I don't understand why linker don't resolves some variable i.e. CurrentRotateScreen also if I declare them extern because they are in Primer2_Circle.elf. What I miss?

Francis · 2009-06-19 10:16:04

Primer2_Circle.elf is NOT linked with your application. The only interface is an API that provides a table of pointers to some functions.
The ELF file appears in the project only because it will be loaded when debugging.

micronpn · 2009-06-19 12:04:13

Means this that to use some SDCard USB related functions have we to use some other .h files or that it is impossible actually? Of course I would prefer to don't waste flash memory if what I need is already present on CircleOS.

Francis · 2009-06-19 13:19:37

If you want to allow the 'USB-Mass storage' access while running your application, you could probably reproduce only the source code of the main menu that enables the USB mass-storage access. The irq should not be redirected (the interrupt services that are already in CricleOS should be sufficent).

# 1 2009-06-18 23:09:15 Circle Os organization

Circle Os organization

# 2 2009-06-19 10:16:04 Circle Os organization

Re: Circle Os organization

# 3 2009-06-19 12:04:13 Circle Os organization

Re: Circle Os organization

# 4 2009-06-19 13:19:37 Circle Os organization

Re: Circle Os organization

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