Differences

This shows you the differences between two versions of the page.

--- ctboard:peripherals:button [2017/08/25 10:43] – ruan
+++ ctboard:peripherals:button [2026/06/25 14:52] (current) – [Programming Example] scbj
@@ Line 7: / Line 7: @@
 > Supported [[ctboard:mode_switch|modes]]: **1**, **2**, **3**, **4**
 \\
+===== Registers =====
+The Registers are read only.
+\\ {{ctboard_button_reg.svg}} \\ \\
+===== Diagram =====
+\\ {{:ctboard:peripherals:ctboard_button.svg?700em}} \\ \\
 ===== Programming Example =====
-The code snippet below shows how to use the buttons.
+The code snippets below show how to use the buttons.
 <code c>
@@ Line 19: / Line 29: @@
 \\
-<code asm>
+<code text>
-ADDR_BUTTON     EQU      0x60000210
+.equ ADDR_BUTTON,   0x60000210
-                LDR      r0, =ADDR_BUTTON
+        ldr         r0, =ADDR_BUTTON
-                LDRB     r1, [r0, #0]       ; Read all buttons into the lower nibble of a byte.
+        ldrb        r1, [r0, #0]       // Read all buttons into the lower nibble of a byte.
 </code>
 \\
-===== Registers =====
-The Registers are read only.
-\\ {{ctboard_button_reg.svg}} \\ \\
-===== Diagram =====
-\\ {{:ctboard:peripherals:ctboard_button.svg?700em}} \\ \\