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ctboard:peripherals:dipsw [2022/12/23 10:59] – ruanctboard:peripherals:dipsw [2026/06/25 14:53] (current) – [Programming Example] scbj
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 ===== Registers ===== ===== Registers =====
  
-The Registers are read only.+The registers are read only.
  
 \\ {{ctboard_dipsw_reg.svg}} \\ \\ \\ {{ctboard_dipsw_reg.svg}} \\ \\
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 \\ \\
  
-<code asm> +<code text> 
-ADDR_DIPSW      EQU      0x60000200+.equ ADDR_DIPSW,     0x60000200
                                  
-                LDR      r0, =ADDR_DIPSW +        ldr     r0,  =ADDR_DIPSW 
-                LDRB     r1, [r0, #0]          ; Read byte from S7..0. +        ldrb    r1,  [r0, #0]          // Read byte from S7..0. 
-                LDRH     r1, [r0, #2]          ; Read half word from S31..16. +        ldrh    r1,  [r0, #2]          // Read half word from S31..16. 
-                LDR      r1, [r0, #0]          ; Read all DIPSW at once into a word.+        ldr     r1,  [r0, #0]          // Read all DIPSW at once into a word.
 </code> </code>
 \\ \\
  • ctboard/peripherals/dipsw.1671793176.txt.gz
  • Last modified: 2022/12/23 10:59
  • by ruan