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soc: Fix description of rtc_config_t.tieh, add macros

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Usage of TIEH was correct but description had 1.8V & 3.3V backwards.

Add macro definitions for TIEH values to improve readability.
This commit is contained in:
Angus Gratton
2018-05-25 14:52:41 +10:00
committed by Angus Gratton
parent c7bedc80c1
commit d775cc4c4c
4 changed files with 8 additions and 5 deletions
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5
components/soc/esp32/include/soc/rtc.h
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@@ -578,13 +578,16 @@ typedef struct {
*/
void rtc_init(rtc_config_t cfg);
#define RTC_VDDSDIO_TIEH_1_8V 0 //!< TIEH field value for 1.8V VDDSDIO
#define RTC_VDDSDIO_TIEH_3_3V 1 //!< TIEH field value for 3.3V VDDSDIO
/**
* Structure describing vddsdio configuration
*/
typedef struct {
uint32_t force : 1; //!< If 1, use configuration from RTC registers; if 0, use EFUSE/bootstrapping pins.
uint32_t enable : 1; //!< Enable VDDSDIO regulator
uint32_t tieh : 1; //!< Select VDDSDIO voltage: 1 — 1.8V, 0 — 3.3V
uint32_t tieh : 1; //!< Select VDDSDIO voltage. One of RTC_VDDSDIO_TIEH_1_8V, RTC_VDDSDIO_TIEH_3_3V
uint32_t drefh : 2; //!< Tuning parameter for VDDSDIO regulator
uint32_t drefm : 2; //!< Tuning parameter for VDDSDIO regulator
uint32_t drefl : 2; //!< Tuning parameter for VDDSDIO regulator