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Moving Toggle to before command fixes driver issue

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This commit is contained in:
Melissa LeBlanc-Williams 2019-03-23 21:04:25 -07:00
parent 0c33f7fdb4
commit b25c4baeec
1 changed files with 3 additions and 2 deletions
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5
shared-module/displayio/Display.c
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@ -60,6 +60,7 @@ void common_hal_displayio_display_construct(displayio_display_obj_t* self,
self->begin_transaction = common_hal_displayio_parallelbus_begin_transaction; self->begin_transaction = common_hal_displayio_parallelbus_begin_transaction;
self->send = common_hal_displayio_parallelbus_send; self->send = common_hal_displayio_parallelbus_send;
self->end_transaction = common_hal_displayio_parallelbus_end_transaction; self->end_transaction = common_hal_displayio_parallelbus_end_transaction;
self->set_cs = NULL;
} else if (MP_OBJ_IS_TYPE(bus, &displayio_fourwire_type)) { } else if (MP_OBJ_IS_TYPE(bus, &displayio_fourwire_type)) {
self->begin_transaction = common_hal_displayio_fourwire_begin_transaction; self->begin_transaction = common_hal_displayio_fourwire_begin_transaction;
self->send = common_hal_displayio_fourwire_send; self->send = common_hal_displayio_fourwire_send;
@ -82,12 +83,12 @@ void common_hal_displayio_display_construct(displayio_display_obj_t* self,
bool delay = (data_size & DELAY) != 0; bool delay = (data_size & DELAY) != 0;
data_size &= ~DELAY; data_size &= ~DELAY;
uint8_t *data = cmd + 2; uint8_t *data = cmd + 2;
self->send(self->bus, true, cmd, 1);
self->send(self->bus, false, data, data_size);
if (self->init_cs_toggle && self->set_cs != NULL) { if (self->init_cs_toggle && self->set_cs != NULL) {
self->set_cs(self->bus, true); self->set_cs(self->bus, true);
self->set_cs(self->bus, false); self->set_cs(self->bus, false);
} }
self->send(self->bus, true, cmd, 1);
self->send(self->bus, false, data, data_size);
uint16_t delay_length_ms = 10; uint16_t delay_length_ms = 10;
if (delay) { if (delay) {
data_size++; data_size++;