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| author | Damien George <damien.p.george@gmail.com> | 2015-02-13 19:04:24 +0000 |
|---|---|---|
| committer | Damien George <damien.p.george@gmail.com> | 2015-02-13 19:04:24 +0000 |
| commit | baafb290ada10c7b8ba0b4b31fb4c5ec8282be88 (patch) | |
| tree | 6b64ea0125190e0abd0cf0a56adb5ec4e9fa79ba | |
| parent | 089c3f321e1bfe86864b6d4b2ac91074ea282c54 (diff) | |
| download | micropython-baafb290ada10c7b8ba0b4b31fb4c5ec8282be88.tar.gz micropython-baafb290ada10c7b8ba0b4b31fb4c5ec8282be88.zip | |
stmhal: Add uart.sendbreak() method, to send a break condition.
| -rw-r--r-- | docs/library/pyb.UART.rst | 6 | ||||
| -rw-r--r-- | stmhal/qstrdefsport.h | 1 | ||||
| -rw-r--r-- | stmhal/uart.c | 9 | ||||
| -rw-r--r-- | tests/pyb/uart.py | 3 |
4 files changed, 19 insertions, 0 deletions
diff --git a/docs/library/pyb.UART.rst b/docs/library/pyb.UART.rst index a636e65e30..257a9f281b 100644 --- a/docs/library/pyb.UART.rst +++ b/docs/library/pyb.UART.rst @@ -134,3 +134,9 @@ Methods Write a single character on the bus. ``char`` is an integer to write. Return value: ``None``. + +.. method:: uart.sendbreak() + + Send a break condition on the bus. This drives the bus low for a duration + of 13 bits. + Return value: ``None``. diff --git a/stmhal/qstrdefsport.h b/stmhal/qstrdefsport.h index 3aecb7acfa..85ab206756 100644 --- a/stmhal/qstrdefsport.h +++ b/stmhal/qstrdefsport.h @@ -186,6 +186,7 @@ Q(any) Q(writechar) Q(readchar) Q(readinto) +Q(sendbreak) Q(RTS) Q(CTS) diff --git a/stmhal/uart.c b/stmhal/uart.c index 23eba45b87..d888358b36 100644 --- a/stmhal/uart.c +++ b/stmhal/uart.c @@ -614,6 +614,14 @@ STATIC mp_obj_t pyb_uart_readchar(mp_obj_t self_in) { } STATIC MP_DEFINE_CONST_FUN_OBJ_1(pyb_uart_readchar_obj, pyb_uart_readchar); +// uart.sendbreak() +STATIC mp_obj_t pyb_uart_sendbreak(mp_obj_t self_in) { + pyb_uart_obj_t *self = self_in; + self->uart.Instance->CR1 |= USART_CR1_SBK; + return mp_const_none; +} +STATIC MP_DEFINE_CONST_FUN_OBJ_1(pyb_uart_sendbreak_obj, pyb_uart_sendbreak); + STATIC const mp_map_elem_t pyb_uart_locals_dict_table[] = { // instance methods @@ -634,6 +642,7 @@ STATIC const mp_map_elem_t pyb_uart_locals_dict_table[] = { { MP_OBJ_NEW_QSTR(MP_QSTR_writechar), (mp_obj_t)&pyb_uart_writechar_obj }, { MP_OBJ_NEW_QSTR(MP_QSTR_readchar), (mp_obj_t)&pyb_uart_readchar_obj }, + { MP_OBJ_NEW_QSTR(MP_QSTR_sendbreak), (mp_obj_t)&pyb_uart_sendbreak_obj }, // class constants { MP_OBJ_NEW_QSTR(MP_QSTR_RTS), MP_OBJ_NEW_SMALL_INT(UART_HWCONTROL_RTS) }, diff --git a/tests/pyb/uart.py b/tests/pyb/uart.py index 288022fea4..c83d18349e 100644 --- a/tests/pyb/uart.py +++ b/tests/pyb/uart.py @@ -12,3 +12,6 @@ print(uart.any()) print(uart.write('123')) print(uart.write(b'abcd')) print(uart.writechar(1)) + +# make sure this method exists +uart.sendbreak() |