Posted on June 13, 2017 at 22:19Hello everybody,
I am a student and I really don't have a clue how to program an uController. This year we have a big project with a STM32F4 Discovery board. We need to read the data from an additional board, that includes 3 Sensors: Accelerometer, Gyroscope and Magnetometer
. We are not allowed to use the CubeMx or any additional Libraries, but we do have a starting program to help us.
Can you please give me some 'to do list', some plan how to start, what i need to do?
For example, this is the main:
//
// Main.cpp
//
&sharpinclude <Compiler.h>
&sharpinclude <Cortex-M.h>
&sharpinclude <Debug.h>
&sharpinclude 'STM32F4xx_Init.h'
&sharpinclude <STK.h>
static bool volatile runMainLoop = true;
/// Program entry.
DECL_NO_RETURN int main(void)
{
ITM_PUTS('It all starts here!');
ITM_PRINTF('AHB clock = %u Hz', HClk());
ITM_PRINTF('APB1 clock = %u Hz', PClk1());
ITM_PRINTF('APB2 clock = %u Hz', PClk2());
STM32F4xx_Init();
ITM_PUTS('Controller has been initialized');
/// User initialization may start here
/// vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
/// ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
/// End of user initialization!
/// Das BASEPRI-Register ist im Start-up-Code auf 0x10 eingestellt worden. Damit kann kein IRQ mit niedrigerer oder gleicher Prio
/// aktiv werden. Erst mit dem Auruf der nachfolgenden Funktion k�nnen alle IRQs aktiv werden.
SetBASEPRI(0U);
ITM_PRINTF('BASEPRI=0x%08X', GetBASEPRI());
/// Indem Bit &sharp0 im CONTROL-Register des Cortex-M4 gesetzt wird, wird der Prozessor in den non-priviliegierten Modus gesetzt.
/// Damit k�nnen diverse, wichtige Einstellungen nicht mehr versehentlich �berschrieben werden.
/// Aber Achtung: Der Exception-Modus ist immer privilegiert, unabh�ngig von CONTROL[0].
SetCONTROL(1U | GetCONTROL());
ITM_PRINTF('CONTROL=0x%08X', GetCONTROL());
ITM_PUTS('Starting main loop');
while ( runMainLoop )
{
}
ITM_PUTS('This is the end!');
ResetController();
}
Thank you in advance!
#accelerometer #mems #sensors #magnetometer #gyroscope #example #code
