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Updated STM32 ADC driver

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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4189 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo 2011-12-16 00:32:11 +00:00
parent e048a2de54
commit 03d2638916
1 changed files with 139 additions and 110 deletions
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35
configs/stm3210e-eval/src/up_adc.c
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@ -72,6 +72,22 @@
#if defined(CONFIG_STM32_ADC1) || defined(CONFIG_STM32_ADC2) || defined(CONFIG_STM32_ADC3)
/* The number of ADC channels in the conversion list */
#define ADC_NCHANNELS 2
/************************************************************************************
* Private Data
************************************************************************************/
/* Identifying number of each ADC channel */
static const uint8_t g_chanlist[ADC_NCHANNELS] = {14, 10};
/* Configurations of pins used byte each ADC channels */
static const uint32_t g_pinlist[ADC_NCHANNELS] = {GPIO_ADC1_IN14 , GPIO_ADC1_IN10};
/************************************************************************************
* Private Functions
************************************************************************************/
@ -90,13 +106,24 @@
*
************************************************************************************/
void adc_devinit(void)
int adc_devinit(void)
{
struct adc_dev_s *adc;
int ret;
int i;
/* Call stm32_adcinitialize() to get an instance of the ADC interface */
#warning "Missing Logic"
avdbg("Entry\n");
/* Configure the pins as analog inputs for the selected channels */^M
for(i = 0; i < ADC_NCHANNELS; i++)
{
stm32_configgpio(chanlist[i]);
}
/* Call stm32_adcinitialize() to get an instance of the ADC interface */^M
adc = stm32_adcinitialize(1, g_chanlist, ADC_NCHANNELS);
/* Register the ADC driver at "/dev/adc0" */
@ -105,6 +132,8 @@ void adc_devinit(void)
{
adbg("adc_register failed: %d\n", ret);
}
return OK;
}
#endif /* CONFIG_STM32_ADC || CONFIG_STM32_ADC2 || CONFIG_STM32_ADC3 */