void ms2001_arch_init( void ) {
ms2001_cur_axe = 0;
/* configure SS pin */
Ms2001Unselect(); /* pin idles high */
SetBit(MS2001_SS_IODIR, MS2001_SS_PIN); /* pin is output */
/* configure RESET pin */
Ms2001Reset(); /* pin idles low */
SetBit(MS2001_RESET_IODIR, MS2001_RESET_PIN); /* pin is output */
/* configure DRDY pin */
/* connected pin to EXINT */
MS2001_DRDY_PINSEL |= MS2001_DRDY_PINSEL_VAL << MS2001_DRDY_PINSEL_BIT;
SetBit(EXTMODE, MS2001_DRDY_EINT); /* EINT is edge trigered */
SetBit(EXTPOLAR,MS2001_DRDY_EINT); /* EINT is trigered on rising edge */
SetBit(EXTINT,MS2001_DRDY_EINT); /* clear pending EINT */
/* initialize interrupt vector */
VICIntSelect &= ~VIC_BIT( MS2001_DRDY_VIC_IT ); /* select EINT as IRQ source */
VICIntEnable = VIC_BIT( MS2001_DRDY_VIC_IT ); /* enable it */
_VIC_CNTL(MS2001_DRDY_VIC_SLOT) = VIC_ENABLE | MS2001_DRDY_VIC_IT;
_VIC_ADDR(MS2001_DRDY_VIC_SLOT) = (uint32_t)EXTINT_ISR; // address of the ISR
}
void ms2100_arch_init( void ) {
ms2100_cur_axe = 0;
/* set mag SS and reset as output and assert them (SS on PC12 reset on PC13) ----*/
Ms2001Unselect();
Ms2001Set();
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC, ENABLE);
GPIO_InitTypeDef GPIO_InitStructure;
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12 | GPIO_Pin_13;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOC, &GPIO_InitStructure);
/* configure data ready on PB5 */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB | RCC_APB2Periph_AFIO, ENABLE);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOB, &GPIO_InitStructure);
#ifdef MS2100_HANDLES_DMA_IRQ
/* Enable DMA1 channel4 IRQ Channel */
NVIC_InitTypeDef NVIC_init_structure_dma = {
.NVIC_IRQChannel = DMA1_Channel4_IRQn,
.NVIC_IRQChannelPreemptionPriority = 0,
.NVIC_IRQChannelSubPriority = 0,
.NVIC_IRQChannelCmd = ENABLE
};
NVIC_Init(&NVIC_init_structure_dma);
#endif /* MS2100_HANDLES_DMA_IRQ */
#ifdef MS2100_HANDLES_SPI_IRQ
NVIC_InitTypeDef NVIC_init_structure_spi = {
.NVIC_IRQChannel = SPI2_IRQn,
.NVIC_IRQChannelPreemptionPriority = 0,
.NVIC_IRQChannelSubPriority = 1,
.NVIC_IRQChannelCmd = ENABLE
};
NVIC_Init(&NVIC_init_structure_spi);
#endif /* MS2100_HANDLES_SPI_IRQ */
}
#ifdef MS2100_HANDLES_SPI_IRQ
void spi2_irq_handler(void) {
Ms2001OnSpiIrq();
}
#endif
#ifdef MS2100_HANDLES_DMA_IRQ
void dma1_c4_irq_handler(void) {
Ms2001OnDmaIrq();
}
