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Merge pull request #5516 from gorazdko/lpc546xx-fix-adc 

lpc546xx: fix adc
pull/5526/head
Jimmy Brisson 2017-11-22 10:16:53 -06:00 committed by GitHub
parent ced2f74f16 5c2f2c3cff
commit a834425d97
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1 changed files with 8 additions and 0 deletions
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8
targets/TARGET_NXP/TARGET_MCUXpresso_MCUS/api/analogin_api.c
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@ -38,6 +38,13 @@ void analogin_init(analogin_t *obj, PinName pin)
uint32_t instance = obj->adc >> ADC_INSTANCE_SHIFT;
adc_config_t adc_config;
uint32_t reg;
uint32_t pin_number = pin & 0x1F;
uint8_t port_number = pin / 32;
/* Clear the DIGIMODE bit */
reg = IOCON->PIO[port_number][pin_number] & ~IOCON_PIO_DIGIMODE_MASK;
IOCON->PIO[port_number][pin_number] = reg;
ADC_ClockPower_Configuration();
@ -69,6 +76,7 @@ uint16_t analogin_read_u16(analogin_t *obj)
adcConvSeqConfigStruct.interruptMode = kADC_InterruptForEachSequence;
ADC_SetConvSeqAConfig(adc_addrs[instance], &adcConvSeqConfigStruct);
ADC_EnableConvSeqA(adc_addrs[instance], true);
ADC_DoSoftwareTriggerConvSeqA(adc_addrs[instance]);
/* Wait for the converter to be done. */