From db3646c619a7f691ad4abd4cf20e2dc8f688f7af Mon Sep 17 00:00:00 2001
From: Seiichi <26223147+suikan4github@users.noreply.github.com>
Date: Fri, 25 Oct 2024 14:10:03 +0900
Subject: [PATCH] Add text IO support Pico.

Edit CMakeLists.txt to enable disable the communication port.
---
 src/CMakeLists.txt | 5 +++++
 src/main.cpp       | 6 +++++-
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 0040a03..bef9dc7 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -9,6 +9,11 @@ if(NOT(${WIN32}) AND NOT (${UNIX})) # Is Target Pico?
 
     # create map/bin/hex/uf2 file etc.
     pico_add_extra_outputs(${PROJECT_NAME})
+
+    # enable usb output, disable uart output
+    pico_enable_stdio_usb(${PROJECT_NAME} 1)  # 1 enable, 0 disable
+    pico_enable_stdio_uart(${PROJECT_NAME} 0) # 1 enable, 0 disable
+
 endif() # (NOT(${WIN32}) AND NOT (${UNIX})) 
 
 add_subdirectory(lib)
diff --git a/src/main.cpp b/src/main.cpp
index 5148926..908fc93 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -8,7 +8,7 @@
  * @copyright Copyright (c) 2022
  *
  */
-#if __has_include(<hardware/gpio.h>)
+#if __has_include(<hardware/stdlib.h>)
 #include <pico/stdlib.h>
 #else
 #include <stdlib.h>
@@ -26,6 +26,10 @@
 int main() {
   Calc calc;
 
+#if __has_include(<hardware/stdlib.h>)
+  stdio_init_all();
+#endif
+
   // count from 1 to num
   for (int i = 1; i <= 10; i++)
     printf("[CalcSqrt] The square root of %d is %f \n", i, calc.sqrt(i));