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Modifications to support banked code. Interrupts and routines accessed through function pointers reside in independent files so they can be assigned to the HOME bank. Init code can be placed in any bank.

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Also add adc init code and bank header files.
This commit is contained in:
anthony-a 2010-01-25 23:12:09 +00:00
parent cc3f609eaa
commit 9cfe29612a
15 changed files with 594 additions and 331 deletions
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67
cpu/cc2430/dev/adc.c Normal file
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/**
* \file
* ADC functions
* \author
* Anthony "Asterisk" Ambuehl
*
* ADC initialization routine, trigger and result conversion routines.
*
*/
#include <stdio.h>
#include "banked.h"
#include "contiki.h"
#include "sys/clock.h"
#include "cc2430_sfr.h"
#include "dev/adc.h"
#include "dev/dma.h"
xDMAHandle adc_dma=0xff;
unsigned int *adc_dma_dest;
/*---------------------------------------------------------------------------*/
void adc_init(void) __banked
{
unsigned char jj;
while (!SLEEP&(HFRC_STB)) {}
/* power both 32MHz crystal and 15MHz RC */
SLEEP &= ~(OSC_PD);
/* printf("SLEEP 1 %x\n",SLEEP); */
/* then wait for it to stabilize */
while (!SLEEP&(XOSC_STB)) {}
/* printf("SLEEP 2 %x\n",SLEEP); */
/* then wait 64uS more */
clock_delay(150);
/* switch to 32MHz clock */
/* printf("switch to 32MHz %x\n",CLKCON); */
CLKCON &= ~(OSC);
/* printf("switched to 32MHz %x\n",CLKCON); */
/* power down 15MHz RC clock */
SLEEP |= OSC_PD;
/* printf("pwr down hfrc\n",SLEEP); */
/* preconfigure adc_dma before calling adc_init if a different dma type is desired. */
if (adc_dma==0xff) {
dma_init();
/* config DMA channel to copy results to single location */
adc_dma=dma_config2(ADC_DMA_CONFIG_CHANNEL, &ADC_SHADOW, DMA_NOINC, adc_dma_dest, DMA_NOINC, 1, 1, DMA_VLEN_LEN, DMA_RPT, DMA_T_ADC_CHALL, 0);
}
}
/* single sample trigger */
void adc_single_shot(void) __banked
{
ADCCON1 |= 0x73;
}
/* convert adc results */
int16_t adc_convert_result(int16_t data) __banked {
data = (0xfffc&data)>>2;
return data;
}
/* read/convert last conversion result */
int16_t adc_get_last_conv() __banked {
int16_t result;
result = (ADCH<<8)|(ADCL);
result = (0xfffc&result)>>2;
return result;
}