From 662107fb28087c0d49f35688e4b906cfcc2eb80c Mon Sep 17 00:00:00 2001
From: Filipriec <filippriec@gmail.com>
Date: Thu, 13 Nov 2025 17:33:35 +0100
Subject: [PATCH] first mask added

---
 hod6/main.cpp | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/hod6/main.cpp b/hod6/main.cpp
index 8b760d2..97936fb 100644
--- a/hod6/main.cpp
+++ b/hod6/main.cpp
@@ -18,6 +18,18 @@ DigitalOut led(LED1);
 #define BUFFER_SIZE 64
 static char rx_buffer[BUFFER_SIZE];
 
+void print_ascii_mask(uint32_t mask)
+{
+    for (int byte = 3; byte >= 0; byte--) {   // High byte first
+        uint8_t b = (mask >> (byte * 8)) & 0xFF;
+        for (int i = 7; i >= 0; i--) {
+            printf("%c", (b & (1 << i)) ? '#' : '.');  // '#' for 1, '.' for 0
+        }
+        printf("\r\n");
+    }
+    printf("\r\n");
+}
+
 int main(void)
 {
     serial_port.set_format(8, BufferedSerial::None, 1);
@@ -31,9 +43,11 @@ int main(void)
             if (num > 0) {
                 led = !led;
 
-                serial_port.write(rx_buffer, num);
+                // serial_port.write(rx_buffer, num);
 
                 printf("[RX] %s\r\n", rx_buffer);
+                uint32_t mask = 0xF0F0A55A;
+                print_ascii_mask(mask);
             }
         }