allow override of XOSC_MHZ #644

2021-10-30T19:29:39-05:00

kilograham commented

2021-10-30 19:29:39 -05:00

(Migrated from github.com)

No description provided.

liamfraser (Migrated from github.com) reviewed

2021-11-01 05:14:36 -05:00

lurch (Migrated from github.com) reviewed

2021-11-01 19:10:56 -05:00

src/rp2_common/hardware_xosc/xosc.c

					
				@ -17,2 +16,3 @@

				#error XOSC_MHZ must be in the range 1-15

				#if XOSC_MHZ < 1 || XOSC_MHZ > 50

				#error XOSC_MHZ must be in the range 1-50

				#endif

Section 2.16.1. in https://datasheets.raspberrypi.com/rp2040/rp2040-datasheet.pdf says "The RP2040 supports
1MHz to 15MHz crystals" ?

Section 2.16.1. in https://datasheets.raspberrypi.com/rp2040/rp2040-datasheet.pdf says "The RP2040 supports 1MHz to 15MHz crystals" ?

lurch (Migrated from github.com) reviewed

2021-11-01 19:30:21 -05:00

src/rp2_common/hardware_xosc/xosc.c

					
				@ -17,2 +16,3 @@

				#error XOSC_MHZ must be in the range 1-15

				#if XOSC_MHZ < 1 || XOSC_MHZ > 50

				#error XOSC_MHZ must be in the range 1-50

				#endif

Ahhh, just seen the comment in #367 about XIN, and indeed the datasheet says "it is possible to drive an external clock directly into XIN (aka XI), and disable the oscillator circuit. In this mode XIN can be driven at up to 50MHz."

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