Teacup_Firmware/cpu-lpc.c

27 lines
679 B
C

/** \file
\brief CPU initialisation, ARM specific part.
To be included from cpu.c, for details see there.
*/
#if defined TEACUP_C_INCLUDE && defined __ARM_LPC1114__
#include "config_wrapper.h"
void cpu_init() {
/**
Other than on ATmegas, the LPC11xx disables all peripherals except GPIO
and SPI0 on reset. Brown Out detector is set to kick in at 1.46 V, without
causing a reset. See chapter 3.5.14 in the LPC11xx User Manual.
GPIO is needed in all configurations, so we just turn off SPI0 if not
needed.
*/
#ifndef SPI
LPC_SYSCON->SYSAHBCLKCTRL &= ~(1 << 11);
#endif
}
#endif /* defined TEACUP_C_INCLUDE && defined __ARM_LPC1114__ */