elbear_arduino_bsp/cores/arduino/board.cpp

45 lines
1.1 KiB
C++

#include "board.h"
#include "mik32_hal_pcc.h"
#include "mik32_hal_irq.h"
#include "Arduino.h"
// --------------------- init --------------------- //
// called from crt0.S before constructors initialization
extern "C" void SystemInit(void)
{
// set irq vector to ram region
write_csr(mtvec, 0x02000000);
HAL_Init();
// gpio clock
__HAL_PCC_GPIO_0_CLK_ENABLE();
__HAL_PCC_GPIO_1_CLK_ENABLE();
__HAL_PCC_GPIO_2_CLK_ENABLE();
__HAL_PCC_GPIO_IRQ_CLK_ENABLE();
// for delays
SysTick_Init();
}
// called after setup()
void post_init(void)
{
if(isInterruptsEnabled()) // if user has called noInterrupts() in setup(), this value is false
interrupts(); // enable global interrupts
}
// --------------------- other --------------------- //
volatile bool use_error_messages = true;
// print error message to Serial
extern "C" void ErrorMsgHandler(const char * msg)
{
// function works if Serial is used in sketch and user doesn't turn it off
#ifdef HardwareSerial_h
if(use_error_messages&&Serial)
Serial.println(msg);
#endif
}