uVision puzzles me a fair bit.
In my project I have declared instances of TIM_TimeBaseInitTypeDef, RCC_ClocksTypeDef, I2S_InitTypeDef without any problems.
Now I'm trying to declare an instance of DMA_InitTypeDef and get this error:
main.c(460): error: #20: identifier "uint32_t" is undefined
I am able to define the following:
#define ADC1_DR_Address ((uint32_t)0x4001244C)
which doesn't give me an error.
this is wierd so any advice?
The newbie Thomas
Not really. It's the compiler, and more importantly, that code you're compiling with it, that does.
And who outside your workplace is supposed to know what those typedefs are?
What made you think it was supposed to be pre-defined? Where do you expect that definition to come from?
Ok I see I take things for granted here :)
I'm working with the uVision with an ST ARM eval board which you guys didn't know..so I see you point
I will direct the question to the ST forum (ST shares code exmples where they use the uint32_t type)!
Thanks for your reply
Thomas
uint32_t should normally be defined in stdint.h - maybe you need to add a line:
#include <stdint.h<
early in your source file.
Another thing. #define SYMBOL RANDOM_RUBBISH will not produce any errors since #define is handled by the preprocessor. It isn't until you get the preprocessor to expand SYMBOL that the compiler will see RANDOM_RUBBISH and can generate a compilation error.
So a #define can contain undefined data types or variable names without any errors - unless you make use of the #defined symbol.