summaryrefslogtreecommitdiff
path: root/shared-module/displayio/Display.c
diff options
context:
space:
mode:
Diffstat (limited to 'shared-module/displayio/Display.c')
-rw-r--r--shared-module/displayio/Display.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/shared-module/displayio/Display.c b/shared-module/displayio/Display.c
index a2a60227d..ac1d0e933 100644
--- a/shared-module/displayio/Display.c
+++ b/shared-module/displayio/Display.c
@@ -178,8 +178,8 @@ void displayio_display_start_region_update(displayio_display_obj_t* self, uint16
data[1] = __builtin_bswap16(x1 - 1 + self->colstart);
self->send(self->bus, false, (uint8_t*) data, 4);
self->send(self->bus, true, &self->set_row_command, 1);
- data[0] = __builtin_bswap16(y0 + 1 + self->rowstart);
- data[1] = __builtin_bswap16(y1 + self->rowstart);
+ data[0] = __builtin_bswap16(y0 + self->rowstart);
+ data[1] = __builtin_bswap16(y1 - 1 + self->rowstart);
self->send(self->bus, false, (uint8_t*) data, 4);
self->send(self->bus, true, &self->write_ram_command, 1);
}