t3t1 rev.e i2c pullup fix

3 weeks ago · e7716f4261
parent d212a03640
commit e7716f4261
1 changed files with 1 additions and 1 deletions
--- a/core/embed/trezorhal/stm32u5/i2c.c
+++ b/core/embed/trezorhal/stm32u5/i2c.c
@ -76,7 +76,7 @@ void i2c_init_instance(uint16_t idx, i2c_instance_t *instance) {

  // configure CTP I2C SCL and SDA GPIO lines
  GPIO_InitStructure.Mode = GPIO_MODE_AF_OD;
-  GPIO_InitStructure.Pull = GPIO_NOPULL;
+  GPIO_InitStructure.Pull = GPIO_PULLUP;
  GPIO_InitStructure.Speed =
      GPIO_SPEED_FREQ_LOW;  // I2C is a KHz bus and low speed is still good into
  // the low MHz