From 1b48342f8af5f5f41ddfe90bcaa46e5b78dbde88 Mon Sep 17 00:00:00 2001
From: Andrey Miroshnikov <andrey@technepisteme.xyz>
Date: Tue, 24 May 2022 22:01:54 +0100
Subject: [PATCH] Added granuality assert (for now)

---
 src/spec/simple_gpio.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/spec/simple_gpio.py b/src/spec/simple_gpio.py
index f8e1f20..ae699a8 100644
--- a/src/spec/simple_gpio.py
+++ b/src/spec/simple_gpio.py
@@ -63,6 +63,10 @@ class SimpleGPIO(Elaboratable):
             temp.append(Record(name=name, layout=gpio_layout))
         self.gpio_ports = Array(temp)
 
+        self.granuality = (len(self.bus.dat_w) // len(self.bus.sel))
+        print("Granuality: %d" % self.granuality)
+        assert self.granuality == 8, "Only byte granuality is supported atm!"
+
     def elaborate(self, platform):
         m = Module()
         comb, sync = m.d.comb, m.d.sync
-- 
2.30.2