diff options
| -rw-r--r-- | ports/nrf/common-hal/displayio/ParallelBus.c | 28 |
1 files changed, 22 insertions, 6 deletions
diff --git a/ports/nrf/common-hal/displayio/ParallelBus.c b/ports/nrf/common-hal/displayio/ParallelBus.c index 42231be52..efb8c15b9 100644 --- a/ports/nrf/common-hal/displayio/ParallelBus.c +++ b/ports/nrf/common-hal/displayio/ParallelBus.c @@ -31,6 +31,7 @@ #include "common-hal/microcontroller/Pin.h" #include "py/runtime.h" #include "shared-bindings/digitalio/DigitalInOut.h" +#include "shared-bindings/microcontroller/__init__.h" #include "tick.h" @@ -70,10 +71,6 @@ void common_hal_displayio_parallelbus_construct(displayio_parallelbus_obj_t* sel common_hal_digitalio_digitalinout_construct(&self->chip_select, chip_select); common_hal_digitalio_digitalinout_switch_to_output(&self->chip_select, true, DRIVE_MODE_PUSH_PULL); - self->reset.base.type = &digitalio_digitalinout_type; - common_hal_digitalio_digitalinout_construct(&self->reset, reset); - common_hal_digitalio_digitalinout_switch_to_output(&self->reset, true, DRIVE_MODE_PUSH_PULL); - self->write.base.type = &digitalio_digitalinout_type; common_hal_digitalio_digitalinout_construct(&self->write, write); common_hal_digitalio_digitalinout_switch_to_output(&self->write, true, DRIVE_MODE_PUSH_PULL); @@ -93,11 +90,18 @@ void common_hal_displayio_parallelbus_construct(displayio_parallelbus_obj_t* sel } self->write_mask = 1 << (write->number % num_pins_in_write_port); + if (reset != NULL) { + self->reset.base.type = &digitalio_digitalinout_type; + common_hal_digitalio_digitalinout_construct(&self->reset, reset); + common_hal_digitalio_digitalinout_switch_to_output(&self->reset, true, DRIVE_MODE_PUSH_PULL); + never_reset_pin_number(reset->number); + common_hal_displayio_parallelbus_reset(self); + } + never_reset_pin_number(command->number); never_reset_pin_number(chip_select->number); never_reset_pin_number(write->number); never_reset_pin_number(read->number); - never_reset_pin_number(reset->number); for (uint8_t i = 0; i < 8; i++) { never_reset_pin_number(data_pin + i); } @@ -115,13 +119,25 @@ void common_hal_displayio_parallelbus_deinit(displayio_parallelbus_obj_t* self) reset_pin_number(self->reset.pin->number); } +void common_hal_displayio_parallelbus_reset(mp_obj_t obj) { + displayio_parallelbus_obj_t* self = MP_OBJ_TO_PTR(obj); + + common_hal_digitalio_digitalinout_set_value(&self->reset, false); + common_hal_mcu_delay_us(4); + common_hal_digitalio_digitalinout_set_value(&self->reset, true); +} + +bool common_hal_displayio_parallelbus_bus_free(mp_obj_t obj) { + return true; +} + bool common_hal_displayio_parallelbus_begin_transaction(mp_obj_t obj) { displayio_parallelbus_obj_t* self = MP_OBJ_TO_PTR(obj); common_hal_digitalio_digitalinout_set_value(&self->chip_select, false); return true; } -void common_hal_displayio_parallelbus_send(mp_obj_t obj, bool command, uint8_t *data, uint32_t data_length) { +void common_hal_displayio_parallelbus_send(mp_obj_t obj, bool command, bool toggle_every_byte, uint8_t *data, uint32_t data_length) { displayio_parallelbus_obj_t* self = MP_OBJ_TO_PTR(obj); common_hal_digitalio_digitalinout_set_value(&self->command, !command); uint32_t* clear_write = (uint32_t*) &self->write_group->OUTCLR; |