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mcu_arch.h File Reference

stm32 arch dependant microcontroller initialisation functions. More...

#include "std.h"
#include <libopencm3/stm32/timer.h>
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Go to the source code of this file.

Macros

#define MyByteSwap16(in, out)
 
#define mcu_int_enable()   {}
 
#define mcu_int_disable()   {}
 

Functions

void mcu_arch_init (void)
 
uint32_t timer_get_frequency (uint32_t timer_peripheral)
 Get Timer clock frequency (before prescaling) Only valid if using the internal clock for the timer. More...
 

Detailed Description

stm32 arch dependant microcontroller initialisation functions.

Definition in file mcu_arch.h.

Macro Definition Documentation

#define mcu_int_disable ( )    {}

Definition at line 51 of file mcu_arch.h.

#define mcu_int_enable ( )    {}

Definition at line 50 of file mcu_arch.h.

#define MyByteSwap16 (   in,
  out 
)
Value:
{ \
asm volatile ( \
"rev16 %0, %1\n\t" \
: "=r" (out) \
: "r"(in) \
); \
}

Definition at line 42 of file mcu_arch.h.

Function Documentation

void mcu_arch_init ( void  )

Definition at line 40 of file mcu_arch.c.

References MAMCR, MAMCR_FULL, MAMTIM, MAMTIM_CYCLES, MEMMAP, MEMMAP_FLASH, PLLCFG, PLLCFG_MSEL, PLLCFG_PSEL, PLLCON, PLLCON_PLLC, PLLCON_PLLE, PLLFEED, PLLSTAT, PLLSTAT_LOCK, reset(), VICDefVectAddr, VICIntEnClear, VICIntSelect, VPBDIV, and VPBDIV_VALUE.

Referenced by mcu_init().

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uint32_t timer_get_frequency ( uint32_t  timer_peripheral)

Get Timer clock frequency (before prescaling) Only valid if using the internal clock for the timer.

Todo:
: these should go into libopencm3

Currently implemented for STM32F1x and STM32F405xx/407xx STM32F415xx/417xx. Not valid for STM32F42xxx and STM32F43xxx.

Parameters
[in]timer_peripheralUnsigned int32. Timer register address base
Returns
Unsigned int32. Timer base frequency

Definition at line 139 of file mcu_arch.c.

Referenced by adc_init_rcc(), ppm_arch_init(), pwm_input_set_timer(), set_servo_timer(), and SpektrumTimerInit().

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