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author | Øyvind Harboe <oyvind.harboe@zylin.com> | 2011-07-15 12:05:37 +0200 |
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committer | Øyvind Harboe <oyvind.harboe@zylin.com> | 2011-07-15 12:05:46 +0200 |
commit | e7269e32a7390e0f17817bc340d50e0cf4d0e9e0 (patch) | |
tree | 37d3f6ade628d8f3643c221f22bba1168f9fa6cf | |
parent | f44bde23b9cf6b3868c712b20cf7d11bdb605482 (diff) |
stm32f2xxx: comments about frequency choice
m--------- | jimtcl | 0 | ||||
-rw-r--r-- | tcl/target/stm32f2xxx.cfg | 5 |
2 files changed, 5 insertions, 0 deletions
diff --git a/jimtcl b/jimtcl -Subproject 411e92fea9621630eb350e0c2bb43543e553b84 +Subproject 60dfb023c4afa95047e0fa8db49830ccb46446b diff --git a/tcl/target/stm32f2xxx.cfg b/tcl/target/stm32f2xxx.cfg index 9ebc00f3..8a857244 100644 --- a/tcl/target/stm32f2xxx.cfg +++ b/tcl/target/stm32f2xxx.cfg @@ -21,6 +21,11 @@ if { [info exists WORKAREASIZE] } { } # JTAG speed should be <= F_CPU/6. F_CPU after reset is 8MHz, so use F_JTAG = 1MHz +# +# Since we may be running of an RC oscilator, we crank down the speed a +# bit more to be on the safe side. Perhaps superstition, but if are +# running off a crystal, we can run closer to the limit. Note +# that there can be a pretty wide band where things are more or less stable. jtag_khz 1000 jtag_nsrst_delay 100 |