Reset Methods - mangOH Yellow Hardware Architecture Manual

mangOH Yellow Hardware Architecture Guide

2.8 Reset Methods

The mangOH Yellow supports hardware and software resets of the entire board or certain components of the
board, as shown in Figure
Table 2-11: Reset Methods
Board Components to Reset
Entire board, including CF3 module (WP or HL)
All components except CF3 module
IOT Expansion Card
Wi-Fi+BT module
The mangOH Yellow also will switch off automatically if operating under battery power and the battery voltage
drops below 3.1V, and will remain off while the battery voltage is < 3.6V.
For detailed specifications showing how full or partial resets are enabled, see the mangOH Yellow schematics
available at mangoh.io/mangoh-yellow-resources-hardware.
Reset Button
(SW401)
RESET_IN
Figure 2-27: Reset Methods
Rev 2 Oct.19
2-27:
Press Reset button (SW401) to trigger the module signal RESET_IN.
Note:
hardware modification is made to populate resistor R630. Refer to the
mangOH Yellow schematic for details.
Use an API command to trigger the module signal LOWPOWER_RESET.
Use an API command to trigger the CF3 module signal
GPIO_IOT0_RESET.
Wi-Fi Reset—Not currently supported.
BT Reset—Use an API command to trigger the CF3 module signal
GPIO_BT_RESET.
Main CF3
LOWPOWER _RESET
GPIO6
GPIO_IOT0_RESET
GPIO2
RESET _IN_N
GPIO _BT_RESET
GPIO37
U1000
Battery
Charger
DNI
36
Reset Method
RESET_IN can also be triggered by the IoT connector (CN601) if a
SYSTEM _RESET
U402
U403
U404
I2C Expander (U505)
GPIO Expander (U503)
USB2.0 Hub Controller (U703)
U806 Expansion Connector (CN805)
USB-UART Controller (U803)
USB-SPI Bridge (U805)
RESET_IOT0
IOT Connector (CN601)
RESET _BT
Wi-Fi/BT Module (U300)
DNI
RESET _IN
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