Differences

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--- ctboard:peripherals:hexsw [2017/08/29 09:18] – [Programming Example] ruan
+++ ctboard:peripherals:hexsw [2026/06/25 14:53] (current) – [Programming Example] scbj
@@ Line 6: / Line 6: @@
 > 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 =====
@@ Line 18: / Line 30: @@
 \\
-<code asm>
+<code text>
-ADDR_HEXSW      EQU      0x60000211
+.equ ADDR_HEXSW,    0x60000211
-                LDR      r0, =ADDR_HEXSW
+        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}} \\ \\