WIP

CMakeLists.txt

@@ -35,7 +35,6 @@ pico_enable_stdio_usb(pico_keyer 0)
 
 # Add the standard library to the build
 target_link_libraries(pico_keyer
-  hardware_flash
   pico_stdlib)
 
 # Add the standard include files to the build
@@ -46,6 +45,9 @@ target_include_directories(pico_keyer PRIVATE
 
 # Add any user requested libraries
 target_link_libraries(pico_keyer 
+  hardware_flash
+  hardware_exception
+  pico_flash
 )
 
 pico_add_extra_outputs(pico_keyer)

pico_keyer.cpp

@@ -1,15 +1,18 @@
 #include <stdio.h>
 #include "pico/stdlib.h"
-#include "hardware/flash.h"
 
-namespace {
-    static uint16_t PAGE_SIZE{256};
+#include "settings.h"
+
+namespace
+{
+
 }
 
 int main()
 {
     stdio_init_all();
 
+    sleep_ms(1000);
 
     puts("Hello, world!");
 

settings.cpp

@@ -0,0 +1,19 @@
+#include "settings.h"
+
+namespace
+{
+    const size_t PAGE_SIZE{256};
+    const size_t NVS_SIZE{4096};
+    const uint32_t FLASH_WRITE_START = PICO_FLASH_SIZE_BYTES - NVS_SIZE;
+}
+
+void flash_store_callback(void *settings)
+{
+    flash_range_erase(FLASH_WRITE_START, NVS_SIZE);
+    flash_range_program(FLASH_WRITE_START, (const uint8_t *)settings, PAGE_SIZE);
+}
+
+void store_settings(Settings &settings)
+{
+    flash_safe_execute(flash_store_callback, (void *)&settings, 1000);
+}

settings.h

@@ -0,0 +1,22 @@
+#ifndef SETTINGS_H
+#define SETTINGS_H
+
+#include "pico/flash.h"
+
+enum class Mode
+{
+    IAMBIC_A,
+    IAMBIC_B,
+    // ULTIMATE
+};
+
+struct Settings
+{
+    Mode mode{Mode::IAMBIC_B};
+};
+
+void store_settings(Settings &settings);
+
+
+
+#endif