8000 rp2/rp2_pio: Add fifo_join support for PIO. by tjvr · Pull Request #7093 · micropython/micropython · GitHub
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rp2/rp2_pio: Add fifo_join support for PIO. #7093

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rp2/rp2_pio: Add fifo_join support for PIO. #7093

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1 change: 1 addition & 0 deletions examples/rp2/pio_uart_rx.py
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Original file line number Diff line number Diff line change
Expand Up @@ -22,6 +22,7 @@
autopush=True,
push_thresh=8,
in_shiftdir=rp2.PIO.SHIFT_RIGHT,
fifo_join=PIO.JOIN_RX,
)
def uart_rx_mini():
# fmt: off
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6 changes: 4 additions & 2 deletions ports/rp2/modules/rp2.py
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Expand Up @@ -31,14 +31,16 @@ def __init__(
autopush=False,
autopull=False,
push_thresh=32,
pull_thresh=32
pull_thresh=32,
fifo_join=0
):
from array import array

self.labels = {}
execctrl = 0
shiftctrl = (
(pull_thresh & 0x1F) << 25
fifo_join << 30
| (pull_thresh & 0x1F) << 25
| (push_thresh & 0x1F) << 20
| out_shiftdir << 19
| in_shiftdir << 18
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4 changes: 4 additions & 0 deletions ports/rp2/rp2_pio.c
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Expand Up @@ -363,6 +363,10 @@ STATIC const mp_rom_map_elem_t rp2_pio_locals_dict_table[] = {
{ MP_ROM_QSTR(MP_QSTR_IRQ_SM1), MP_ROM_INT(0x200) },
{ MP_ROM_QSTR(MP_QSTR_IRQ_SM2), MP_ROM_INT(0x400) },
{ MP_ROM_QSTR(MP_QSTR_IRQ_SM3), MP_ROM_INT(0x800) },

{ MP_ROM_QSTR(MP_QSTR_JOIN_NONE), MP_ROM_INT(0) },
{ MP_ROM_QSTR(MP_QSTR_JOIN_TX), MP_ROM_INT(1) },
{ MP_ROM_QSTR(MP_QSTR_JOIN_RX), MP_ROM_INT(2) },
};
STATIC MP_DEFINE_CONST_DICT(rp2_pio_locals_dict, rp2_pio_locals_dict_table);

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