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Fix blink example by correctly toggling output #79

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Merged
merged 1 commit into from
Aug 19, 2022
Merged

Fix blink example by correctly toggling output #79

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14 changes: 6 additions & 8 deletions examples/blink.py
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Original file line number Diff line number Diff line change
Expand Up @@ -30,10 +30,8 @@
#define RTC_IO_TOUCH_PAD2_REG (DR_REG_RTCIO_BASE + 0x9c)
#define RTC_IO_TOUCH_PAD2_MUX_SEL_M (BIT(19))
#define RTC_GPIO_OUT_REG (DR_REG_RTCIO_BASE + 0x0)
#define RTC_GPIO_ENABLE_W1TS_REG (DR_REG_RTCIO_BASE + 0x10)
#define RTC_GPIO_ENABLE_W1TC_REG (DR_REG_RTCIO_BASE + 0x14)
#define RTC_GPIO_ENABLE_W1TS_S 14
#define RTC_GPIO_ENABLE_W1TC_S 14
#define RTC_GPIO_ENABLE_REG (DR_REG_RTCIO_BASE + 0xc)
#define RTC_GPIO_ENABLE_S 14
#define RTC_GPIO_OUT_DATA_S 14

# constants from:
Expand Down Expand Up @@ -62,8 +60,8 @@
# connect GPIO to ULP (0: GPIO connected to digital GPIO module, 1: GPIO connected to analog RTC module)
WRITE_RTC_REG(RTC_IO_TOUCH_PAD2_REG, RTC_IO_TOUCH_PAD2_MUX_SEL_M, 1, 1);

# GPIO shall be output, not input
WRITE_RTC_REG(RTC_GPIO_OUT_REG, RTC_GPIO_OUT_DATA_S + gpio, 1, 1);
# GPIO shall be output, not input (this also enables a pull-down by default)
WRITE_RTC_REG(RTC_GPIO_ENABLE_REG, RTC_GPIO_ENABLE_S + gpio, 1, 1)

# store that we're done with initialisation
move r0, magic
Expand All @@ -83,12 +81,12 @@

on:
# turn on led (set GPIO)
WRITE_RTC_REG(RTC_GPIO_ENABLE_W1TS_REG, RTC_GPIO_ENABLE_W1TS_S + gpio, 1, 1)
WRITE_RTC_REG(RTC_GPIO_OUT_REG, RTC_GPIO_OUT_DATA_S + gpio, 1, 1)
jump exit

off:
# turn off led (clear GPIO)
WRITE_RTC_REG(RTC_GPIO_ENABLE_W1TC_REG, RTC_GPIO_ENABLE_W1TC_S + gpio, 1, 1)
WRITE_RTC_REG(RTC_GPIO_OUT_REG, RTC_GPIO_OUT_DATA_S + gpio, 1, 0)
jump exit

exit:
Expand Down