Merge branch 'develop' into rc-1.5.0

Author: shtaxxx

tests/extension/thread_/fixed_const/test_thread_fixed_const.py

@@ -110,7 +110,7 @@
           end
         end
         th_blink_5: begin
-          _th_blink_next_val_1 <= _th_blink_next_val_1 + 256;
+          _th_blink_next_val_1 <= _th_blink_next_val_1 + 'sd128;
           th_blink <= th_blink_6;
         end
         th_blink_6: begin

tests/extension/thread_/fixed_const/thread_fixed_const.py

@@ -29,8 +29,8 @@ def blink(times):
         led.value = 0
         next_val = vthread.fixed.FixedConst(0, 8)
         for i in range(times):
-            next_val = next_val + 1
-            led.value = next_val
+            next_val = next_val + vthread.fixed.FixedConst(0.5, 8)
+            led.value = next_val.int_part
             print("led = ", led)
 
     th = vthread.Thread(m, 'th_blink', clk, rst, blink)