ARMmbed
/
mbed-os
mirror of https://github.com/ARMmbed/mbed-os.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

lpc546xx: fix adc 

Resolve #5304
pull/5516/head
gorazd 2017-11-16 20:31:34 +01:00
parent 3bedff36e3
commit d62b47393e
1 changed files with 9 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
targets/TARGET_NXP/TARGET_MCUXpresso_MCUS/api/analogin_api.c
View File

@ -38,6 +38,14 @@ 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 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();
@ -69,6 +77,7 @@ 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. */