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
Refer to the EEPROM configuration
Locate the GPIO definition block
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.
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
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
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.
Pin assignments and mapping to header connectors is documented in a usage page.
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