diff options
| -rw-r--r-- | chip/g/trng.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/chip/g/trng.c b/chip/g/trng.c index e817034937..94363b29c4 100644 --- a/chip/g/trng.c +++ b/chip/g/trng.c @@ -32,11 +32,12 @@ #endif /** - * Attempts to read TRNG_EMPTY before reporting a stall. - * Practically data should be available in less than 777 - * cycles under normal conditions. + * Attempts to read TRNG_EMPTY before reporting a stall. Practically data should + * be available in less than 0x7ff cycles under normal conditions. 0x7ff was + * chosen to match the hardware TRNG TIMEOUT_COUNTER. Test on boards with slow + * TRNG before reducing this number. */ -#define TRNG_EMPTY_COUNT 777 +#define TRNG_EMPTY_COUNT 0x7ff void init_trng(void) { |