diff options
| -rw-r--r-- | stmhal/uart.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/stmhal/uart.c b/stmhal/uart.c index 6582bda00..abe413bbf 100644 --- a/stmhal/uart.c +++ b/stmhal/uart.c @@ -623,8 +623,9 @@ STATIC mp_obj_t pyb_uart_init_helper(pyb_uart_obj_t *self, mp_uint_t n_args, con // set timeout_char // make sure it is at least as long as a whole character (13 bits to be safe) + // minimum value is 2ms because sys-tick has a resolution of only 1ms self->timeout_char = args.timeout_char.u_int; - uint32_t min_timeout_char = 13000 / init->BaudRate + 1; + uint32_t min_timeout_char = 13000 / init->BaudRate + 2; if (self->timeout_char < min_timeout_char) { self->timeout_char = min_timeout_char; } |