ht1632.h

00001 /*
00002  * Header for Holtek ht1632 LED driver 
00003  */
00004  
00005  /* Original Nov, 2008 by Bill Westfield */
00006 
00007 
00008 #define ID_CMD 4        /* ID = 100 - Commands */
00009 #define ID_RD  6        /* ID = 110 - Read RAM */
00010 #define ID_WR  5        /* ID = 101 - Write RAM */
00011 
00012 #define CMD_SYSDIS 0x00    /* CMD= 0000-0000-x Turn off oscil */
00013 #define CMD_SYSON  0x01    /* CMD= 0000-0001-x Enable system oscil */
00014 #define CMD_LEDOFF 0x02    /* CMD= 0000-0010-x LED duty cycle gen off */
00015 #define CMD_LEDON  0x03    /* CMD= 0000-0011-x LEDs ON */
00016 #define CMD_BLOFF  0x08    /* CMD= 0000-1000-x Blink ON */
00017 #define CMD_BLON   0x09    /* CMD= 0000-1001-x Blink Off */
00018 #define CMD_SLVMD  0x10    /* CMD= 0001-00xx-x Slave Mode */
00019 #define CMD_MSTMD  0x14    /* CMD= 0001-01xx-x Master Mode */
00020 #define CMD_RCCLK  0x18    /* CMD= 0001-10xx-x Use on-chip clock */
00021 #define CMD_EXTCLK 0x1C    /* CMD= 0001-11xx-x Use external clock */
00022 #define CMD_COMS00 0x20    /* CMD= 0010-ABxx-x commons options */
00023 #define CMD_COMS01 0x24    /* CMD= 0010-ABxx-x commons options */
00024 #define CMD_COMS10 0x28    /* CMD= 0010-ABxx-x commons options */
00025 #define CMD_COMS11 0x2C    /* CMD= 0010-ABxx-x commons options */
00026 #define CMD_PWM    0xA0    /* CMD= 101x-PPPP-x PWM duty cycle */
00027