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author | Harald Welte <laforge@gnumonks.org> | 2019-02-24 14:32:30 +0100 |
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committer | Harald Welte <laforge@gnumonks.org> | 2019-02-24 23:05:15 +0100 |
commit | 93f628a4c35f100ebc14b896b99f225dc07a6681 (patch) | |
tree | 3a168c1cfc0762de8fbe49b601982c693886dea2 | |
parent | f53f226765089f5318b8aeefe62a9aa6bb1d35ab (diff) |
PA11: Increase drive strength to 8mA
It has been observed that the 20 MHz clock signal doesn't even remotely
resemble a square shape unless DRVSTR=1 is set using this patch.
Change-Id: I1366e13442eda829756aa4121be81eb15135c73e
-rw-r--r-- | sysmoOCTSIM/main.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/sysmoOCTSIM/main.c b/sysmoOCTSIM/main.c index 09d766e..50e82c6 100644 --- a/sysmoOCTSIM/main.c +++ b/sysmoOCTSIM/main.c @@ -18,6 +18,7 @@ #include <parts.h> #include <hal_cache.h> +#include <hri_port_e54.h> #include "atmel_start.h" #include "atmel_start_pins.h" @@ -54,6 +55,10 @@ static void board_init() cache_init(); cache_enable(CMCC); + + /* increase drive strength of 20Mhz SIM clock output to 8mA + * (there are 8 inputs + traces to drive!) */ + hri_port_set_PINCFG_DRVSTR_bit(PORT, 0, 11); } int main(void) |