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lpc546xx: fix adc Resolve #5304

pull/5634/head
gorazd 2017-11-16 20:31:34 +01:00 committed by adbridge
parent f8a4c07570
commit 44d45d4023
1 changed files with 9 additions and 0 deletions
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9
targets/TARGET_NXP/TARGET_MCUXpresso_MCUS/api/analogin_api.c
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@ -38,6 +38,14 @@ void analogin_init(analogin_t *obj, PinName pin)
uint32_t instance = obj->adc >> ADC_INSTANCE_SHIFT; uint32_t instance = obj->adc >> ADC_INSTANCE_SHIFT;
adc_config_t adc_config; adc_config_t adc_config;
uint32_t reg;
uint32_t pin_number = pin & 0x1F;
uint8_t port_number = pin / 32;
/* Clear the PDEN_ADC0 bit in the PDRUNCFG0 */
reg = IOCON->PIO[port_number][pin_number] & ~IOCON_PIO_DIGIMODE_MASK;
reg &= ~(1UL << SYSCON_PDRUNCFG_PDEN_ADC0_SHIFT);
IOCON->PIO[port_number][pin_number] = reg;
ADC_ClockPower_Configuration(); ADC_ClockPower_Configuration();
@ -69,6 +77,7 @@ uint16_t analogin_read_u16(analogin_t *obj)
adcConvSeqConfigStruct.interruptMode = kADC_InterruptForEachSequence; adcConvSeqConfigStruct.interruptMode = kADC_InterruptForEachSequence;
ADC_SetConvSeqAConfig(adc_addrs[instance], &adcConvSeqConfigStruct); ADC_SetConvSeqAConfig(adc_addrs[instance], &adcConvSeqConfigStruct);
ADC_EnableConvSeqA(adc_addrs[instance], true);
ADC_DoSoftwareTriggerConvSeqA(adc_addrs[instance]); ADC_DoSoftwareTriggerConvSeqA(adc_addrs[instance]);
/* Wait for the converter to be done. */ /* Wait for the converter to be done. */