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-rw-r--r--shared-bindings/rgbmatrix/RGBMatrix.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/shared-bindings/rgbmatrix/RGBMatrix.c b/shared-bindings/rgbmatrix/RGBMatrix.c
index 753c1c920..5f5ea4fae 100644
--- a/shared-bindings/rgbmatrix/RGBMatrix.c
+++ b/shared-bindings/rgbmatrix/RGBMatrix.c
@@ -197,6 +197,11 @@ STATIC mp_obj_t rgbmatrix_rgbmatrix_make_new(const mp_obj_type_t *type, size_t n
uint8_t clock_pin = validate_pin(args[ARG_clock_pin].u_obj);
uint8_t latch_pin = validate_pin(args[ARG_latch_pin].u_obj);
uint8_t output_enable_pin = validate_pin(args[ARG_output_enable_pin].u_obj);
+ int bit_depth = args[ARG_bit_depth].u_int;
+
+ if (bit_depth <= 0 || bit_depth > 6) {
+ mp_raise_ValueError_varg(translate("Bit depth must be from 1 to 6 inclusive, not %d"), bit_depth);
+ }
validate_pins(MP_QSTR_rgb_pins, rgb_pins, MP_ARRAY_SIZE(self->rgb_pins), args[ARG_rgb_list].u_obj, &rgb_count);
validate_pins(MP_QSTR_addr_pins, addr_pins, MP_ARRAY_SIZE(self->addr_pins), args[ARG_addr_list].u_obj, &addr_count);
@@ -229,7 +234,7 @@ STATIC mp_obj_t rgbmatrix_rgbmatrix_make_new(const mp_obj_type_t *type, size_t n
common_hal_rgbmatrix_rgbmatrix_construct(self,
args[ARG_width].u_int,
- args[ARG_bit_depth].u_int,
+ bit_depth,
rgb_count, rgb_pins,
addr_count, addr_pins,
clock_pin, latch_pin, output_enable_pin,