Fix "unkown chip id", piped output and st-util -v (#763)

* Set SWD clock before using SWD (#107, #568 ?)

* Make st-util -v print more than default

* Flush output streams explicitly. Fix #665

On Win32 redirecting streams makes them buffered, therefore without
flushing there would be no output before exit. Stdout and stderr are
also often buffered differently, making them disordered.

src/gdbserver/gdb-server.c

@@ -151,7 +151,7 @@ int parse_options(int argc, char** argv, st_state_t *st) {
                 if (optarg) {
                     st->logging_level = atoi(optarg);
                 } else {
-                    st->logging_level = DEFAULT_LOGGING_LEVEL;
+                    st->logging_level = DEBUG_LOGGING_LEVEL;
                 }
                 break;
             case '1':

src/logging.c

@@ -22,6 +22,10 @@ int ugly_log(int level, const char *tag, const char *format, ...) {
     if (level > max_level) {
         return 0;
     }
+
+    // Flush to maintain order of streams
+    fflush(stdout);
+
     va_list args;
     va_start(args, format);
     time_t mytt = time(NULL);
@@ -46,6 +50,7 @@ int ugly_log(int level, const char *tag, const char *format, ...) {
         break;
     }
     vfprintf(stderr, format, args);
+    fflush(stderr);
     va_end(args);
     return 1;
 }

src/usb.c

@@ -923,6 +923,9 @@ stlink_t *stlink_open_usb(enum ugly_loglevel verbose, bool reset, char serial[16
     // Initialize stlink version (sl->version)	
     stlink_version(sl);	
 
+    // Set the stlink clock speed (default is 1800kHz)
+    stlink_set_swdclk(sl, STLINK_SWDCLK_1P8MHZ_DIVISOR);    
+
     if (reset) {
         if( sl->version.stlink_v > 1 ) stlink_jtag_reset(sl, 2);
         stlink_reset(sl);
@@ -931,9 +934,6 @@ stlink_t *stlink_open_usb(enum ugly_loglevel verbose, bool reset, char serial[16
 
     ret = stlink_load_device_params(sl);
 
-    // Set the stlink clock speed (default is 1800kHz)
-    stlink_set_swdclk(sl, STLINK_SWDCLK_1P8MHZ_DIVISOR);    
-
 on_libusb_error:
     if (ret == -1) {
         stlink_close(sl);