core: add timeout bool

example/modifier_volume_cube.cpp

@@ -995,10 +995,31 @@ void main()
                        texture_memory_alloc.background[core].start,
                        texture_memory_alloc.framebuffer[core].start,
                        framebuffer_width);
-    core_wait_end_of_render_video();
+    bool timeout = core_wait_end_of_render_video();
+    if (timeout) {
+      serial::string("timeout\ntimeout\ntimeout\ntimeout\n");
+
+      holly.SOFTRESET = softreset::pipeline_soft_reset;
+      holly.SOFTRESET = 0;
+      for (int i = 0; i < 10000; i++) {
+        asm volatile ("nop");
+      }
+      core_start_render2(texture_memory_alloc.region_array[core].start,
+                         texture_memory_alloc.isp_tsp_parameters[core].start,
+                         texture_memory_alloc.background[core].start,
+                         texture_memory_alloc.framebuffer[core].start,
+                         framebuffer_width);
+      bool timeout = core_wait_end_of_render_video();
+      if (timeout) {
+        serial::string("timeout2\ntimeout2\ntimeout2\ntimeout2\n");
+        break;
+      }
+      serial:: string("recovered\n");
+    }
 
     holly.FB_R_SOF1 = texture_memory_alloc.framebuffer[ta].start;
 
     theta += degree;
   }
+  serial::string("return\nreturn\nreturn\nreturn\n");
 }

holly/core.cpp

@@ -134,13 +134,14 @@ void core_start_render3(uint32_t region_array_start,
   holly.STARTRENDER = 1;
 }
 
-void core_wait_end_of_render_video()
+bool core_wait_end_of_render_video()
 {
   /*
     "Furthermore, it is strongly recommended that the End of ISP and End of Video interrupts
     be cleared at the same time in order to make debugging easier when an error occurs."
   */
   //serial::string("eorv\n");
+  bool timeout = false;
   int64_t count = 0;
   while (1) {
     uint32_t istnrm = system.ISTNRM;
@@ -167,12 +168,13 @@ void core_wait_end_of_render_video()
       //serial::string("core ");
       //serial::integer<uint32_t>(system.ISTERR);
     }
-    if (count > 300000) {
+    if (count > 3000000) {
       serial::string("core timeout:\n");
       serial::string("isterr ");
       serial::integer<uint32_t>(system.ISTERR);
       serial::string("istnrm ");
       serial::integer<uint32_t>(system.ISTNRM);
+      timeout = true;
       break;
     }
     count += 1;
@@ -181,8 +183,7 @@ void core_wait_end_of_render_video()
 		| istnrm::end_of_render_isp
 		| istnrm::end_of_render_video;
 
-  holly.SOFTRESET = softreset::pipeline_soft_reset;
-  holly.SOFTRESET = 0;
+  return timeout;
 }
 
 void core_flip(uint32_t frame_ix)

holly/core.hpp

@@ -22,5 +22,5 @@ void core_start_render3(uint32_t region_array_start,
                         uint32_t bytes_per_pixel
 			);
 
-void core_wait_end_of_render_video();
+bool core_wait_end_of_render_video();
 void core_flip(uint32_t frame_ix);

tools/dump_texture_memory.sh

@@ -0,0 +1,9 @@
+#!/bin/sh
+
+SCRIPT_DIR=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )
+
+set -ex
+
+${SCRIPT_DIR}/ftdi_transfer \
+    read 0xa5000000 0x800000 ./texture_memory.bin \
+    read 0xa05f8000 0x2000 ./holly_registers.bin