Segment Control

This is the “raw” interface. Each segment of the display can be controled independently. The segments are “active-low”, e.g. the segment is on if a logical “0” is written to it.

Please make sure the CT Board is in the correct mode.
Supported modes: 1, 2, 3

The code snippet bellow shows how to use the 7 segment display in segment control mode.

#include "reg_ctboard.h"
 
CT_SEG7->RAW.BYTE.DS0 = (uint8_t) data_byte;           /* Write byte of segment data to DS0. */
CT_SEG7->RAW.HWORD.DS3_2 = (uint16_t) data_halfword;   /* Write half word of segment data to DS3..2. */
CT_SEG7->RAW.WORD = (uint32_t) data_word;              /* Write word of segment data to all displays. */

ADDR_SEG7_RAW   EQU      0x60000110
 
                LDR      r0, =ADDR_SEG7_RAW
                STRB     r1, [r0, #0]                     ; Write byte of segment data to DS0.
                STRH     r1, [r0, #2]                     ; Write half word of segment data to DS3..2.
                STR      r1, [r0, #0]                     ; Write word of segment data to all displays.

The Registers are read / write.