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authorDave Hylands <davehylands@fullstory.com>2020-08-11 12:44:51 -0700
committerDamien George <damien@micropython.org>2020-08-21 13:42:47 +1000
commit8727c4e2eca9026494c173061c5905d54fa5f73d (patch)
treea1f082c3220240245567f102d05bb09ebfb2462b
parente76c7466b62c940150cf1b5000e18f60a5efa2e3 (diff)
stm32/pin_defs_stm32: Fix pin printing to show IN mode correctly.
Prior to this commit, if you configure a pin as an output type (I2C in this example) and then later configure it back as an input, then it will report the type incorrectly. Example: >>> import machine >>> b6 = machine.Pin('B6') >>> b6 Pin(Pin.cpu.B6, mode=Pin.IN) >>> machine.I2C(1) I2C(1, scl=B6, sda=B7, freq=420000) >>> b6 Pin(Pin.cpu.B6, mode=Pin.ALT_OPEN_DRAIN, pull=Pin.PULL_UP, af=Pin.AF4_I2C1) >>> b6.init(machine.Pin.IN) >>> b6 Pin(Pin.cpu.B6, mode=Pin.ALT_OPEN_DRAIN, af=Pin.AF4_I2C1) With this commit the last print now works: >>> b6 Pin(Pin.cpu.B6, mode=Pin.IN)
-rw-r--r--ports/stm32/pin_defs_stm32.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/ports/stm32/pin_defs_stm32.c b/ports/stm32/pin_defs_stm32.c
index 0aef5f95f..a3f9d039d 100644
--- a/ports/stm32/pin_defs_stm32.c
+++ b/ports/stm32/pin_defs_stm32.c
@@ -8,9 +8,9 @@
uint32_t pin_get_mode(const pin_obj_t *pin) {
GPIO_TypeDef *gpio = pin->gpio;
uint32_t mode = (gpio->MODER >> (pin->pin * 2)) & 3;
- if (mode != GPIO_MODE_ANALOG) {
+ if (mode == GPIO_MODE_OUTPUT_PP || mode == GPIO_MODE_AF_PP) {
if (gpio->OTYPER & pin->pin_mask) {
- mode |= 1 << 4;
+ mode |= 1 << 4; // Converts from xxx_PP to xxx_OD
}
}
return mode;