We use the DA1468x/DA1510x PRO-Development kit to develop our project, we can load code to the daughter board by the mother board.
After that, we designed our own PCB of DA14681. Can we use the mother board of development kit to load the code to our own PCB ?
We used the Pin16(SWDIO), Pin20(SWCLK), Pin24(VBAT+ = 3V), Pin28 (GND) of J3 of the attached schematic(mother board) to connect our PCB (P0_6, P2_4, VBAT1&VBAT2, GND).
Is that correct ? or anything we missed ?
We are failed to load code to our PCB, the error message is "cannot open gdb interface"
The flash we used is W25Q80EWNIG.