UM-B-114
DA14531 Development Kit Pro Hardware User Manual
User Manual
Revision 1.4
23-Apr-2020
27 of 82
© 2021 Dialog Semiconductor
5.3
PRO-MB Setup
The PRO-MB provides several debug interfaces and tools that can be used for development.
The DA14531 pin assignment for the available functions are presented in the following sections.
5.3.1
Reset
At power-on and before booting in the chip, reset is active high, and it is assigned to on P0_0. After
booting, reset assignment and operation is handled by software.
●
On a DA14531 PRO-DB, the reset signal provided by the PRO-MB is connected to P0_0 for
WLCSP17 and FCGQFN24 through a 1 k
Ω resistor
●
On the PRO-MB, reset can be enabled either from the JTAG interface (T-RESET) or by pressing
the push button SW1
Please note that, to enable reset on an application, P0_0 must be enabled in both hardware and
software
Figure 20: RESET Circuit on DA14531 PRO-MB
Figure 21: Reset Pin Assignment on PRO-DBs for FCGQFN24 and WLCSP17
