Big assert / debug clean up

src/debug/printing/printable_uart.cpp

@@ -0,0 +1,25 @@
+#include <sta/debug/printing/printable_uart.hpp>
+
+#include <sta/debug/assert.hpp>
+#include <sta/printf.hpp>
+
+#include <cinttypes>
+#include <cstring>
+
+
+namespace sta
+{
+    
+    PrintableUART::PrintableUART(UART * intf)
+        : intf_{intf}
+    {
+        STA_ASSERT(intf != nullptr);
+        STA_ASSERT(intf->settings().mode == UARTMode::RX || intf->settings().mode == UARTMode::RX_TX);
+    }
+
+    void PrintableUART::print(const char * str, size_t length)
+    {
+        intf_->transfer(reinterpret_cast<const uint8_t *>(str), length);
+    }
+
+} // namespace sta