move-I2C-reset-via-GPIO9-from-python-into-tildagon_i2c

emfcamp · May 30, 2024 · d8f4731 · d8f4731
1 parent 9e18277
commit d8f4731
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Showing 2 changed files with 4 additions and 2 deletions.
diff --git a/drivers/tildagon_i2c/tildagon_i2c.c b/drivers/tildagon_i2c/tildagon_i2c.c
@@ -35,6 +35,7 @@
 
 #include "driver/i2c.h"
 #include "hal/i2c_ll.h"
+#include "driver/gpio.h"
 
 #include "tildagon_i2c.h"
 
@@ -85,6 +86,9 @@ void tildagon_i2c_init() {
     int timeout = I2C_SCLK_FREQ / 1000000 * TILDAGON_HOST_I2C_TIMEOUT;
     i2c_set_timeout(TILDAGON_HOST_I2C_PORT, (timeout > I2C_LL_MAX_TIMEOUT) ? I2C_LL_MAX_TIMEOUT : timeout);
     i2c_driver_install(TILDAGON_HOST_I2C_PORT, I2C_MODE_MASTER, 0, 0, 0);
+    // reset I2C
+    gpio_set_direction(GPIO_NUM_9, GPIO_MODE_OUTPUT);
+    gpio_set_level(GPIO_NUM_9, 1);
 }
 
 

diff --git a/modules/tildagonos.py b/modules/tildagonos.py
@@ -23,8 +23,6 @@
 
 class _tildagonos:
     def __init__(self):
-        self.pin_reset_i2c = Pin(9, Pin.OUT)
-        self.pin_reset_i2c.on()
         self.system_i2c = I2C(7)
         self.init_gpio()
         self.leds = neopixel.NeoPixel(Pin(21), 19)