#167 EEPROM device tree lacks the reset GPIO

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otevřeno před 4 roky uživatelem Michael Schloh von Bennewitz · 3 komentářů

EEPROM device tree lacks the reset GPIO

Problem environment

Hosts read EEPROM data over I²C to determine which GPIO pins are available on which J3 header locations. Sendcomm serves a reset interface on the GPIO pin at location 37.

Steps to reproduce

  1. Refer to the EEPROM configuration
  2. Locate the GPIO definition block
  3. Search for pin 37 and review type

Expected result

The host connection header J3 (since 0.9.4) connects the MCU reset circuit over GPIO pin 37 and the EEPROM configuration presents this information.

Actual result

The EEPROM configuration fails to define pin 37 as a outward bound GPIO.

Workaround

Physically press the blue RST button on the device rather than sofware resetting it.

Severity level

This is low priority because project requirements state no reference to reset features.

# EEPROM device tree lacks the reset GPIO ## Problem environment Hosts read EEPROM data over I²C to determine which GPIO pins are available on which J3 header locations. Sendcomm serves a reset interface on the GPIO pin at location 37. ## Steps to reproduce 1. Refer to the EEPROM configuration 1. Locate the GPIO definition block 1. Search for pin 37 and review type ## Expected result The host connection header J3 (since 0.9.4) connects the MCU reset circuit over GPIO pin 37 and the EEPROM configuration presents this information. ## Actual result The EEPROM configuration fails to define pin 37 as a outward bound GPIO. ## Workaround Physically press the blue RST button on the device rather than sofware resetting it. ## Severity level This is **low priority** because project requirements state no reference to reset features.
Michael Schloh von Bennewitz přidal(a) štítek
enhancement
před 4 roky
Michael Schloh von Bennewitz přidal(a) toto do milníku Postproject catchall před 4 roky

Pin assignments and mapping to header connectors is documented in a usage page.

Pin assignments and mapping to header connectors is [documented in a usage](https://www.raspberrypi.org/documentation/usage/gpio/) page.

Solved in 12b319a.

Solved in 12b319a.
This is not totally resolved, as the EEPROM lacks a device tree fragment. https://github.com/raspberrypi/hats/blob/master/designguide.md https://github.com/raspberrypi/hats/blob/master/devicetree-guide.md https://www.raspberrypi.org/documentation/configuration/device-tree.md
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