From 3ac749b83cf218ab151ae1ca72badd41eaf0cc49 Mon Sep 17 00:00:00 2001
From: Birte Kristina Friesel <derf@finalrewind.org>
Date: Sat, 6 Jan 2024 20:16:45 +0100
Subject: ssd1306: correctly initialize vertical addressing for height < 64px

Fixes operation on 128x32 displays
---
 ssd1306.lua | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'ssd1306.lua')

diff --git a/ssd1306.lua b/ssd1306.lua
index d54d28f..a6e4cd3 100644
--- a/ssd1306.lua
+++ b/ssd1306.lua
@@ -40,7 +40,7 @@ function ssd1306.init(width, height)
 		s_COM_PIN_CFG, height == 32 and 0x02 or 0x12, s_DISP_CLK_DIV, 0x80,
 		s_PRECHARGE, 0x88, s_VCOM_DESEL, 0x30, s_CONTRAST, 0x80, s_ENTIRE_ON,
 		s_NORM_INV, s_CHARGE_PUMP, 0x14, s_DISP + 0x01, s_COL_ADDR, 0, 127,
-		s_PAGE_ADDR, 0, 7}
+		s_PAGE_ADDR, 0, height/8-1}
 	for i, v in ipairs(tab) do
 		ssd1306.wc(v)
 	end
-- 
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