I'm trying to use a 32kHz clock on the RTC pins with an LPC54102. The subject mentionned previously (Wait 15 seconds for PLL to lock the input from 32KHz Crystal ), but I still have this problem, even worst because the wait can be much longer. I need the PLL to generate a 96MHz frequency.
I tried the following :
- Change the SELx as define in remark in the application note (SELP=6, SELI=4 and SELR=0)
=> Still have long wait to lock
- Not using the Chip_Clock_IsSystemPLLLocked() function, and set a 100 ms loop instead.
=> The chip crashes. Need to manually handle the reset pin to be able to re-programming the chip.
I'm currently using the latest LPC open for this chip (v3.03.000).
Thanks for any help.