wip why does HSE run at 16MHz?

2024-12-28 15:03:49 +01:00
parent 4adddddd83
commit 2f4d38a0d8
20 changed files with 1921 additions and 1504 deletions
@@ -9,11 +9,27 @@ make build
 ## Probe for the board
 Run
 ```sh
-st-info --probe 
+st-info --probe
 ```

 ## Flashing
 Run
 ```sh
-make flash 
+make flash
 ```
+
+## Debugging
+
+### `st-info --probe` shows 0KB flash
+```
+> sudo st-info --probe
+Found 1 stlink programmers
+  version:    V2J43S28
+  serial:     0671FF343056363043090732
+  flash:      0 (pagesize: 16384)      <--- 0KB flash
+  sram:       131072
+  chipid:     0x431
+  dev-type:   STM32F411xC_xE
+```
+This can happen when the flash is locked. One way to unlock it is to erase the entire chip via the
+Windows application `ST-Link Util`.