Changed frequency to match PIO having 2 instructions

gamblor21 · gamblor21 · commit 7669089e4a5b · 2021-03-11T18:58:09.000-06:00
diff --git a/ports/raspberrypi/common-hal/displayio/ParallelBus.c b/ports/raspberrypi/common-hal/displayio/ParallelBus.c
@@ -93,7 +93,7 @@ void common_hal_displayio_parallelbus_construct(displayio_parallelbus_obj_t* sel
 
     common_hal_rp2pio_statemachine_construct(&self->state_machine,
         parallel_program, sizeof(parallel_program) / sizeof(parallel_program[0]),
-        frequency, // frequency
+        frequency * 2, // frequency multiplied by 2 as 2 PIO instructions
         NULL, 0, // init
         data0, 8, 0, 255, // first out pin, # out pins
         NULL, 0, // first in pin, # in pins
diff --git a/shared-bindings/displayio/ParallelBus.c b/shared-bindings/displayio/ParallelBus.c
@@ -68,7 +68,7 @@ STATIC mp_obj_t displayio_parallelbus_make_new(const mp_obj_type_t *type, size_t
         { MP_QSTR_write, MP_ARG_OBJ | MP_ARG_KW_ONLY | MP_ARG_REQUIRED },
         { MP_QSTR_read, MP_ARG_OBJ | MP_ARG_KW_ONLY | MP_ARG_REQUIRED },
         { MP_QSTR_reset, MP_ARG_OBJ | MP_ARG_KW_ONLY | MP_ARG_REQUIRED },
-        { MP_QSTR_frequency, MP_ARG_INT | MP_ARG_KW_ONLY, {.u_int = 60000000 } },
+        { MP_QSTR_frequency, MP_ARG_INT | MP_ARG_KW_ONLY, {.u_int = 30000000 } },
     };
     mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
     mp_arg_parse_all(n_args, pos_args, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
