diff options
| author | Scott Shawcroft <scott.shawcroft@gmail.com> | 2017-04-13 14:15:06 -0700 |
|---|---|---|
| committer | Scott Shawcroft <scott.shawcroft@gmail.com> | 2017-04-13 14:15:06 -0700 |
| commit | d1b15cf1a3070581a781a80fd55a346e4849950b (patch) | |
| tree | b1837e4a2e516f3d87edbac5dd22c82e106163c4 | |
| parent | 4a4f29b8f95aa67f63397ae4efe78c6994398ccf (diff) | |
esp8266: Don't reset TX and RX lines. The pullup is required for
the Adafruit Huzzah Breakout because it has a diode to protect
against 5v logic which effectively blocks 1s and relies on the
pull up to produce them.
| -rw-r--r-- | esp8266/common-hal/microcontroller/Pin.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/esp8266/common-hal/microcontroller/Pin.c b/esp8266/common-hal/microcontroller/Pin.c index d20a6a997..417ab0c41 100644 --- a/esp8266/common-hal/microcontroller/Pin.c +++ b/esp8266/common-hal/microcontroller/Pin.c @@ -47,7 +47,8 @@ bool common_hal_mcu_pin_is_free(const mcu_pin_obj_t* pin) { void reset_pins(void) { for (int i = 0; i < 17; i++) { - if (i == 0 || (i > 6 && i < 13) || i == 12) { + // 5 is RXD, 6 is TXD + if (i == 0 || (i > 4 && i < 13) || i == 12) { continue; } uint32_t peripheral = PERIPHS_IO_MUX + i * 4; |