diff options
| -rw-r--r-- | ports/stm32/machine_uart.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/ports/stm32/machine_uart.c b/ports/stm32/machine_uart.c index bf7bcfb9c..1bb1d2a1a 100644 --- a/ports/stm32/machine_uart.c +++ b/ports/stm32/machine_uart.c @@ -523,6 +523,12 @@ STATIC mp_obj_t pyb_uart_irq(size_t n_args, const mp_obj_t *pos_args, mp_map_t * } STATIC MP_DEFINE_CONST_FUN_OBJ_KW(pyb_uart_irq_obj, 1, pyb_uart_irq); +// Since uart.write() waits up to the last byte, uart.txdone() always returns True. +STATIC mp_obj_t machine_uart_txdone(mp_obj_t self_in) { + return mp_const_true; +} +STATIC MP_DEFINE_CONST_FUN_OBJ_1(machine_uart_txdone_obj, machine_uart_txdone); + STATIC const mp_rom_map_elem_t pyb_uart_locals_dict_table[] = { // instance methods @@ -538,11 +544,13 @@ STATIC const mp_rom_map_elem_t pyb_uart_locals_dict_table[] = { { MP_ROM_QSTR(MP_QSTR_readinto), MP_ROM_PTR(&mp_stream_readinto_obj) }, /// \method write(buf) { MP_ROM_QSTR(MP_QSTR_write), MP_ROM_PTR(&mp_stream_write_obj) }, + { MP_ROM_QSTR(MP_QSTR_flush), MP_ROM_PTR(&mp_stream_flush_obj) }, { MP_ROM_QSTR(MP_QSTR_irq), MP_ROM_PTR(&pyb_uart_irq_obj) }, { MP_ROM_QSTR(MP_QSTR_writechar), MP_ROM_PTR(&pyb_uart_writechar_obj) }, { MP_ROM_QSTR(MP_QSTR_readchar), MP_ROM_PTR(&pyb_uart_readchar_obj) }, { MP_ROM_QSTR(MP_QSTR_sendbreak), MP_ROM_PTR(&pyb_uart_sendbreak_obj) }, + { MP_ROM_QSTR(MP_QSTR_txdone), MP_ROM_PTR(&machine_uart_txdone_obj) }, // class constants { MP_ROM_QSTR(MP_QSTR_RTS), MP_ROM_INT(UART_HWCONTROL_RTS) }, @@ -635,6 +643,9 @@ STATIC mp_uint_t pyb_uart_ioctl(mp_obj_t self_in, mp_uint_t request, uintptr_t a if ((flags & MP_STREAM_POLL_WR) && uart_tx_avail(self)) { ret |= MP_STREAM_POLL_WR; } + } else if (request == MP_STREAM_FLUSH) { + // Since uart.write() waits up to the last byte, uart.flush() always succeds. + ret = 0; } else { *errcode = MP_EINVAL; ret = MP_STREAM_ERROR; |