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-rw-r--r--stm/usart.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/stm/usart.c b/stm/usart.c
index 05b897dbf..9adc7d6ae 100644
--- a/stm/usart.c
+++ b/stm/usart.c
@@ -175,6 +175,15 @@ typedef struct _pyb_usart_obj_t {
bool is_enabled;
} pyb_usart_obj_t;
+static mp_obj_t usart_obj_status(mp_obj_t self_in) {
+ // TODO make it check the correct USART port!
+ if (usart_rx_any()) {
+ return mp_const_true;
+ } else {
+ return mp_const_false;
+ }
+}
+
static mp_obj_t usart_obj_rx_char(mp_obj_t self_in) {
mp_obj_t ret = mp_const_none;
pyb_usart_obj_t *self = self_in;
@@ -207,11 +216,13 @@ static void usart_obj_print(void (*print)(void *env, const char *fmt, ...), void
print(env, "<Usart %lu>", self->usart_id);
}
+static MP_DEFINE_CONST_FUN_OBJ_1(usart_obj_status_obj, usart_obj_status);
static MP_DEFINE_CONST_FUN_OBJ_1(usart_obj_rx_char_obj, usart_obj_rx_char);
static MP_DEFINE_CONST_FUN_OBJ_2(usart_obj_tx_char_obj, usart_obj_tx_char);
static MP_DEFINE_CONST_FUN_OBJ_2(usart_obj_tx_str_obj, usart_obj_tx_str);
static const mp_method_t usart_methods[] = {
+ { "status", &usart_obj_status_obj },
{ "recv_chr", &usart_obj_rx_char_obj },
{ "send_chr", &usart_obj_tx_char_obj },
{ "send", &usart_obj_tx_str_obj },