Differences

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--- ctboard:peripherals:lcd_ascii [2020/09/05 15:51] – [LCD ASCII Interface] ruan
+++ ctboard:peripherals:lcd_ascii [2026/06/25 15:14] (current) – scbj
@@ Line 6: / Line 6: @@
 > Supported [[ctboard:mode_switch|modes]]: **1**, **2**, **3**, **4**
 \\
+===== Registers =====
+The registers are write only.
+\\ {{ctboard_lcd_ascii_reg_new.svg}} \\ \\
+===== Display Positions =====
+\\ {{ctboard_lcd_ascii_new.svg?700em}} \\ \\
+Base address: 0x6000'0300
 ===== Programming Example =====
@@ Line 20: / Line 32: @@
 \\
-<code asm>
+<code text>
-ADDR_LCD_ASCII  EQU      0x60000300
+.equ ADDR_LCD_ASCII, 0x60000300
-                LDR      r0, =ADDR_LCD_ASCII
+        ldr     r0,  =ADDR_LCD_ASCII
-                LDR      r1, "E"                          ; Load value of ASCII char 'E' into r2.
+        ldr     r1,  ="E"                 // load value of ASCII char 'E' into r1.
-                STRH     r1, [r0, #13]                    ; Write 'E' at position 13 on the LCD.
+        strb    r1,  [r0, #12]            // write 'E' at position 13 on the LCD.
 </code>
 \\
-===== Registers =====
-The registers are write only.
-\\ {{ctboard_lcd_ascii_reg_new.svg}} \\ \\
-===== Display Positions =====
-\\ {{ctboard_lcd_ascii_new.svg?700em}} \\ \\
-Base address: 0x6000'0300