altosui: Abort flashing if debug port isn't working

[fw/altos] / ao-tools / altosui / AltosFlash.java

diff --git a/ao-tools/altosui/AltosFlash.java b/ao-tools/altosui/AltosFlash.java
index b70185558f974a6fe9fb94b7ebf10db4c1dd5258..a3e431cdf7dd9c60bde16953d40f116236420b0b 100644 (file)
--- a/ao-tools/altosui/AltosFlash.java
+++ b/ao-tools/altosui/AltosFlash.java
@@ -202,9 +202,13 @@ public class AltosFlash {
                debug.debug_instr(set_clkcon_fast);
 
                byte    status;
-               do {
+               for (int times = 0; times < 20; times++) {
+                       Thread.sleep(1);
                        status = debug.debug_instr(get_sleep);
-               } while ((status & SLEEP_XOSC_STB) == 0);
+                       if ((status & SLEEP_XOSC_STB) != 0)
+                               return;
+               }
+               throw new IOException("Failed to initialize target clock");
        }
 
        void action(String s, int percent) {
@@ -221,6 +225,22 @@ public class AltosFlash {
                       percent);
        }
 
+       void run(int pc) throws IOException, InterruptedException {
+               debug.set_pc(pc);
+               int set_pc = debug.get_pc();
+               if (pc != set_pc)
+                       throw new IOException("Failed to set target program counter");
+               debug.resume();
+
+               for (int times = 0; times < 20; times++) {
+                       byte status = debug.read_status();
+                       if ((status & AltosDebug.STATUS_CPU_HALTED) != 0)
+                               return;
+               }
+
+               throw new IOException("Failed to execute program on target");
+       }
+
        public void flash() throws IOException, FileNotFoundException, InterruptedException {
                if (!check_rom_config())
                        throw new IOException("Invalid rom config settings");
@@ -264,16 +284,7 @@ public class AltosFlash {
                                                            this_time);
                        debug.write_memory(flash_prog, flash_page);
 
-                       debug.set_pc(flash_prog);
-                       int pc = debug.get_pc();
-                       debug.resume();
-                       Thread.sleep(100);
-                       for (int times = 0; times < 10; times++) {
-                               byte status = debug.read_status();
-                               if ((status & AltosDebug.STATUS_CPU_HALTED) != 0)
-                                       break;
-                               Thread.sleep(100);
-                       }
+                       run(flash_prog);
 
                        byte[] check = debug.read_memory(flash_addr, this_time);
                        for (int i = 0; i < this_time; i++)