Hi, I am using the Smart Tag reference design h/w with DA14580_SMART_TAG_5.20.2 source code. The question I have is whether it is safe to replace the XTAL 32.768Khz with the internal 32Khz internal RCX oscillator with no side effect on the operation? If yes, is there any other software modification required other than changing #define CFG_LP_CLK LP_CLK_XTAL32 to #define CFG_LP_CLK LP_CLK_RCX20 in da1458x_config_advanced.h file?
Thanks
Shash
Device:
嗨,abov我有类似的问题e. I designed my own PCB without using 32.768k crystal because I don't need deep sleep mode.
After changing #define CFG_LP_CLK LP_CLK_XTAL32 to #define CFG_LP_CLK LP_CLK_RCX20, I still can't debug 14580 byJlink. It halts waiting
for DBG_IS_UP. What may I do next? Thanks.
Hi encrypt,
The fact that you have changed the LP clock doesn't have to do with what you see on Keil, the device has reached a hardfault (which means that something went wrong), and the cause of that is something else other than just the change of the LP clock.
Thanks MT_dialog
Hi Shashk,
The reason for the XTAL32 on the Smart Tag is to slightly reduce the power consumption of the module and and also you wont be able to operate under deep sleep, so if you change the from the XTAL32 to the RCX you should expect perhaps a small change in power consumption and you wont be able to operate under deep sleep. The Smart Tag is tested operating under XTAL and not RCX but i dont see any other problems besides the ones that i ve allread mentioned. Regarding the change yes, all you have to do is change the CFG_LP_CLK to LP_CLK_RCX20.
Thanks MT_dialog