diff options
Diffstat (limited to 'openpcd/firmware/src/picc/pll.c')
-rw-r--r-- | openpcd/firmware/src/picc/pll.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/openpcd/firmware/src/picc/pll.c b/openpcd/firmware/src/picc/pll.c new file mode 100644 index 0000000..c554ea6 --- /dev/null +++ b/openpcd/firmware/src/picc/pll.c @@ -0,0 +1,24 @@ + +#include <sys/types.h> +#include <lib_AT91SAM7.h> +#include "../openpcd.h" + +void pll_inhibit(int inhibit) +{ + if (inhibit) + AT91F_PIO_SetOutput(AT91C_BASE_PIOA, OPENPICC_PIO_PLL_INHIBIT); + else + AT91F_PIO_ClearOutput(AT91C_BASE_PIOA, OPENPICC_PIO_PLL_INHIBIT); +} + +int pll_is_locked(void) +{ + return AT91F_PIO_IsInputSet(AT91C_BASE_PIOA, OPENPICC_PIO_PLL_LOCK); +} + +void pll_init(void) +{ + AT91F_PIO_CfgOutput(AT91C_BASE_PIOA, OPENPICC_PIO_PLL_INHIBIT); + AT91F_PIO_CfgInput(AT91C_BASE_PIOA, OPENPICC_PIO_PLL_LOCK); + pll_inhibit(0); +} |