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Merge pull request #13895 from gschorcht/cpu/esp32/fix_i2c_gpio_32_33

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cpu/esp32: fix GPIO32 and GPIO 33 as I2C pins
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benpicco 2020-05-25 22:37:35 +02:00 committed by GitHub
commit 3a30db4029
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2 changed files with 3 additions and 2 deletions
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1
cpu/esp32/startup.c
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@ -228,6 +228,7 @@ static void IRAM system_clk_init (void)
rtc_select_slow_clk(RTC_SLOW_FREQ_32K_XTAL);
#else
/* set SLOW_CLK to internal low power clock of 150 kHz */
rtc_clk_32k_enable(false);
rtc_select_slow_clk(RTC_SLOW_FREQ_RTC);
#endif

4
cpu/esp_common/periph/i2c_sw.c
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@ -54,8 +54,8 @@
#define I2C_CLOCK_STRETCH 200
/* gpio access macros */
#define GPIO_SET(l,h,b) if (b < 32) GPIO.l = BIT(b); else GPIO.h.val = BIT(32-b)
#define GPIO_GET(l,h,b) ((b < 32) ? GPIO.l & BIT(b) : GPIO.h.val & BIT(32-b))
#define GPIO_SET(l,h,b) if (b < 32) GPIO.l = BIT(b); else GPIO.h.val = BIT(b-32)
#define GPIO_GET(l,h,b) ((b < 32) ? GPIO.l & BIT(b) : GPIO.h.val & BIT(b-32))
#else /* MCU_ESP32 */