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lpc546xx: fix adc #5516

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Merged
merged 3 commits into from
Nov 22, 2017
Merged

lpc546xx: fix adc #5516

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d62b473
lpc546xx: fix adc
Nov 16, 2017
8411134
lpc546xx: correct register name (DIGIMODE)
Nov 17, 2017
5c2f2c3
lpc546xx: remove obsolete line
Nov 18, 2017
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8 changes: 8 additions & 0 deletions targets/TARGET_NXP/TARGET_MCUXpresso_MCUS/api/analogin_api.c
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Original file line number Diff line number Diff line change
Expand Up @@ -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();

Expand Down Expand Up @@ -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);
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Thanks for adding this, apologies for missing this line.

ADC_DoSoftwareTriggerConvSeqA(adc_addrs[instance]);

/* Wait for the converter to be done. */
Expand Down