From: Jan Michel <michel@physik.uni-frankfurt.de>
Date: Fri, 20 Dec 2024 10:02:50 +0000 (+0100)
Subject: edge detect for fpga reboot
X-Git-Url: https://jspc29.x-matter.uni-frankfurt.de/git/?a=commitdiff_plain;h=8445af505f6f58cf4bf0b2ddb262cd92ca989d23;p=trbnet.git

edge detect for fpga reboot
---

diff --git a/special/fpga_reboot.vhd b/special/fpga_reboot.vhd
index 9f745a3..69814e4 100644
--- a/special/fpga_reboot.vhd
+++ b/special/fpga_reboot.vhd
@@ -21,6 +21,8 @@ architecture fpga_reboot_arch of fpga_reboot is
   signal restart_fpga_counter : unsigned(11 downto 0) := x"000";  
   signal last_reset : std_logic := '0';
   signal last_delayed_restart_fpga : std_logic;
+  signal last_DO_REBOOT : std_logic;
+  
 begin
 
 PROC_REBOOT : process
@@ -36,9 +38,10 @@ PROC_REBOOT : process
     --     restart_fpga_counter   <= x"000";      
     --   end if;
     -- else
+      last_DO_REBOOT           <= DO_REBOOT;
       delayed_restart_fpga     <= '0';
       PREPARE_FOR_RELOAD       <= '0';
-      if DO_REBOOT = '1'  or (RESET = '0' and last_reset = '1' and REBOOT_ON_RESET = '1') then
+      if (DO_REBOOT = '1' and last_DO_REBOOT = '0')  or (RESET = '0' and last_reset = '1' and REBOOT_ON_RESET = '1') then
         restart_fpga_counter   <= x"001";
       elsif restart_fpga_counter /= x"000" then
         restart_fpga_counter   <= restart_fpga_counter + 1;