Differences

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--- ctboard:peripherals:hexsw [2016/02/25 12:36] – [Programming Example] feur
+++ ctboard:peripherals:hexsw [2026/06/25 14:53] (current) – [Programming Example] scbj
@@ Line 3: / Line 3: @@
 The HEX switch on the CT Board can switch through 16 different states (4 bit). \\ \\
-> {{ctboard:ctboard_mode_1.svg?48px }} {{ctboard:ctboard_mode_2.svg?48px }} {{ctboard:ctboard_mode_3.svg?48px }} Please make sure the CT Board is in the correct mode.
+> {{ctboard:ctboard_mode_1.svg?48px }} {{ctboard:ctboard_mode_2.svg?48px }} {{ctboard:ctboard_mode_3.svg?48px }} {{ctboard:ctboard_mode_4.svg?48px }} Please make sure the CT Board is in the correct mode.
-> Supported [[ctboard:mode_switch|modes]]: **1**, **2**, **3**
+> Supported [[ctboard:mode_switch|modes]]: **1**, **2**, **3**, **4**
 \\
+===== Registers =====
+**Caveat:** Register bits [7:4] are read as '1' and therefore need to be masked.
+The register is read only.
+\\ {{ctboard_hexsw_reg.svg}} \\ \\
+===== Diagram =====
+\\ {{:ctboard:peripherals:ctboard_hexsw.svg?700em}} \\ \\
 ===== Programming Example =====
-The code snippet bellow shows how to use the HEXSW.
+The code snippets below show how to use the HEXSW.
 <code c>
@@ Line 18: / Line 30: @@
 \\
-<code asm>
+<code text>
-ADDR_BUTTON     EQU      0x60000211
+.equ ADDR_HEXSW,    0x60000211
-                LDR      r0, =ADDR_BUTTON
+        ldr         r0, =ADDR_HEXSW
-                LDRB     r1, [r0, #0]       ; Read HEXSW into the lower nibble of a byte.
+        ldrb        r1, [r0, #0]       // Read HEXSW into the lower nibble of a byte.
 </code>
 \\
-===== Registers =====
-The Registers are read only.
-\\ {{ctboard_hexsw_reg.svg}} \\ \\
-===== Diagram =====
-\\ {{:ctboard:peripherals:ctboard_hexsw.svg?700em}} \\ \\