GLCD / OLED serial displays
Up until now I've used 16 x 2 and 20 x 4 LCD displays in my projects. Recently I used a 128 x 64 GLCD which used a BV4615 daughter board which handled the drawing on the screen, and allowed the screen to be connected as a serial device, and made for easy code writing as the commands were no more complicated than using an LCD, eg:
Code:
serout2 portB.0, 84, ["Alarm Off"]
However I'm looking at using an I2c or SPI based display, and noticed that there is a nokia 3310 screen library for PBP. In that library it uses a lookup / lookdown table for the characters thus
Code:
Lcd_SendChar:
lookdown Lcd_data,[" !\#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ"],CharNum'[\]^_`abcdefghijklmnopqrstuvwxyz{|}~"],CharNum
Lcd_data = CharNum +32
sELECT CASE lcd_data
Case 32
FC(0)=$00:FC(1)=$00:FC(2)=$00:FC(3)=$00:FC(4)=$00 ' // sp
Case 33
FC(0)=$00:FC(1)=$00:FC(2)=$2f:FC(3)=$00:FC(4)=$00 ' // !
Case 34
FC(0)=$00:FC(1)=$07:FC(2)=$00:FC(3)=$07:FC(4)=$00 ' // " (use \)
Case 35
FC(0)=$14:FC(1)=$7f:FC(2)=$14:FC(3)=$7f:FC(4)=$14 ' // #
Case 36
FC(0)=$24:FC(1)=$2a:FC(2)=$7f:FC(3)=$2a:FC(4)=$12 ' // $
Case 37
FC(0)=$c4:FC(1)=$c8:FC(2)=$10:FC(3)=$26:FC(4)=$46 ' // %
Case 38
FC(0)=$36:FC(1)=$49:FC(2)=$55:FC(3)=$22:FC(4)=$50 ' // &
Case 39
FC(0)=$00:FC(1)=$05:FC(2)=$03:FC(3)=$00:FC(4)=$00 ' // '
Case 40
FC(0)=$00:FC(1)=$1c:FC(2)=$22:FC(3)=$41:FC(4)=$00 ' // (
Case 41
FC(0)=$00:FC(1)=$41:FC(2)=$22:FC(3)=$1c:FC(4)=$00 ' // )
Case 42
FC(0)=$14:FC(1)=$08:FC(2)=$3E:FC(3)=$08:FC(4)=$14 ' // *
Case 43
FC(0)=$08:FC(1)=$08:FC(2)=$3E:FC(3)=$08:FC(4)=$08 ' // +
Case 44
FC(0)=$00:FC(1)=$00:FC(2)=$50:FC(3)=$30:FC(4)=$00 ' //
Case 45
FC(0)=$10:FC(1)=$10:FC(2)=$10:FC(3)=$10:FC(4)=$10 ' // -
Case 46
FC(0)=$00:FC(1)=$60:FC(2)=$60:FC(3)=$00:FC(4)=$00 ' // .
Case 47
FC(0)=$20:FC(1)=$10:FC(2)=$08:FC(3)=$04:FC(4)=$02 ' // /
Case 48
FC(0)=$3E:FC(1)=$51:FC(2)=$49:FC(3)=$45:FC(4)=$3E ' // 0
Case 49
FC(0)=$00:FC(1)=$42:FC(2)=$7F:FC(3)=$40:FC(4)=$00 ' // 1
Case 50
FC(0)=$42:FC(1)=$61:FC(2)=$51:FC(3)=$49:FC(4)=$46 ' // 2
Case 51
FC(0)=$21:FC(1)=$41:FC(2)=$45:FC(3)=$4B:FC(4)=$31 ' // 3
Case 52
FC(0)=$18:FC(1)=$14:FC(2)=$12:FC(3)=$7F:FC(4)=$10 ' // 4
Case 53
FC(0)=$27:FC(1)=$45:FC(2)=$45:FC(3)=$45:FC(4)=$39 ' // 5
Case 54
FC(0)=$3C:FC(1)=$4A:FC(2)=$49:FC(3)=$49:FC(4)=$30 ' // 6
Case 55
FC(0)=$01:FC(1)=$71:FC(2)=$09:FC(3)=$05:FC(4)=$03 ' // 7
Case 56
FC(0)=$36:FC(1)=$49:FC(2)=$49:FC(3)=$49:FC(4)=$36 ' // 8
Case 57
FC(0)=$06:FC(1)=$49:FC(2)=$49:FC(3)=$29:FC(4)=$1E ' // 9
Case 58
FC(0)=$00:FC(1)=$36:FC(2)=$36:FC(3)=$00:FC(4)=$00 ' // :
Case 59
FC(0)=$00:FC(1)=$56:FC(2)=$36:FC(3)=$00:FC(4)=$00 ' // ";"
Case 60
FC(0)=$08:FC(1)=$14:FC(2)=$22:FC(3)=$41:FC(4)=$00 ' // <
Case 61
FC(0)=$14:FC(1)=$14:FC(2)=$14:FC(3)=$14:FC(4)=$14 ' // =
Case 62
FC(0)=$00:FC(1)=$41:FC(2)=$22:FC(3)=$14:FC(4)=$08 ' // >
Case 63
FC(0)=$02:FC(1)=$01:FC(2)=$51:FC(3)=$09:FC(4)=$06 ' // ?
Case 64
FC(0)=$32:FC(1)=$49:FC(2)=$59:FC(3)=$51:FC(4)=$3E ' // @
Case 65
FC(0)=$7E:FC(1)=$11:FC(2)=$11:FC(3)=$11:FC(4)=$7E ' // A
Case 66
FC(0)=$7F:FC(1)=$49:FC(2)=$49:FC(3)=$49:FC(4)=$36 ' // B
Case 67
FC(0)=$3E:FC(1)=$41:FC(2)=$41:FC(3)=$41:FC(4)=$22 ' // C
Case 68
FC(0)=$7F:FC(1)=$41:FC(2)=$41:FC(3)=$22:FC(4)=$1C ' // D
Case 69
FC(0)=$7F:FC(1)=$49:FC(2)=$49:FC(3)=$49:FC(4)=$41 ' // E
Case 70
FC(0)=$7F:FC(1)=$09:FC(2)=$09:FC(3)=$09:FC(4)=$01 ' // F
Case 71
FC(0)=$3E:FC(1)=$41:FC(2)=$49:FC(3)=$49:FC(4)=$7A ' // G
Case 72
FC(0)=$7F:FC(1)=$08:FC(2)=$08:FC(3)=$08:FC(4)=$7F ' // H
Case 73
FC(0)=$00:FC(1)=$41:FC(2)=$7F:FC(3)=$41:FC(4)=$00 ' // I
Case 74
FC(0)=$20:FC(1)=$40:FC(2)=$41:FC(3)=$3F:FC(4)=$01 ' // J
Case 75
FC(0)=$7F:FC(1)=$08:FC(2)=$14:FC(3)=$22:FC(4)=$41 ' // K
Case 76
FC(0)=$7F:FC(1)=$40:FC(2)=$40:FC(3)=$40:FC(4)=$40 ' // L
Case 77
FC(0)=$7F:FC(1)=$02:FC(2)=$0C:FC(3)=$02:FC(4)=$7F ' // M
Case 78
FC(0)=$7F:FC(1)=$04:FC(2)=$08:FC(3)=$10:FC(4)=$7F ' // N
Case 79
FC(0)=$3E:FC(1)=$41:FC(2)=$41:FC(3)=$41:FC(4)=$3E ' // O
Case 80
FC(0)=$7F:FC(1)=$09:FC(2)=$09:FC(3)=$09:FC(4)=$06 ' // P
Case 81
FC(0)=$3E:FC(1)=$41:FC(2)=$51:FC(3)=$21:FC(4)=$5E ' // Q
Case 82
FC(0)=$7F:FC(1)=$09:FC(2)=$19:FC(3)=$29:FC(4)=$46 ' // R
Case 83
FC(0)=$46:FC(1)=$49:FC(2)=$49:FC(3)=$49:FC(4)=$31 ' // S
Case 84
FC(0)=$01:FC(1)=$01:FC(2)=$7F:FC(3)=$01:FC(4)=$01 ' // T
Case 85
FC(0)=$3F:FC(1)=$40:FC(2)=$40:FC(3)=$40:FC(4)=$3F ' // U
Case 86
FC(0)=$1F:FC(1)=$20:FC(2)=$40:FC(3)=$20:FC(4)=$1F ' // V
Case 87
FC(0)=$3F:FC(1)=$40:FC(2)=$38:FC(3)=$40:FC(4)=$3F ' // W
Case 88
FC(0)=$63:FC(1)=$14:FC(2)=$08:FC(3)=$14:FC(4)=$63 ' // X
Case 89
FC(0)=$07:FC(1)=$08:FC(2)=$70:FC(3)=$08:FC(4)=$07 ' // Y
Case 90
FC(0)=$61:FC(1)=$51:FC(2)=$49:FC(3)=$45:FC(4)=$43 ' // Z
' Case 91
' FC(0)=$00:FC(1)=$7F:FC(2)=$41:FC(3)=$41:FC(4)=$00 ' // [
' Case 92
' FC(0)=$02:FC(1)=$04:FC(2)=$08:FC(3)=$10:FC(4)=$20 ' // \ (we are using this for " above)
' Case 93
' FC(0)=$00:FC(1)=$41:FC(2)=$41:FC(3)=$7F:FC(4)=$00 ' // ]
' Case 94
' FC(0)=$04:FC(1)=$02:FC(2)=$01:FC(3)=$02:FC(4)=$04 ' // ^
' Case 95
' FC(0)=$40:FC(1)=$40:FC(2)=$40:FC(3)=$40:FC(4)=$40 ' // _
' Case 96
' FC(0)=$00:FC(1)=$01:FC(2)=$02:FC(3)=$04:FC(4)=$00 ' // '
' Case 97
' FC(0)=$20:FC(1)=$54:FC(2)=$54:FC(3)=$54:FC(4)=$78 ' // a
' Case 98
' FC(0)=$7F:FC(1)=$48:FC(2)=$44:FC(3)=$44:FC(4)=$38 ' // b
' Case 99
' FC(0)=$38:FC(1)=$44:FC(2)=$44:FC(3)=$44:FC(4)=$20 ' // c
' Case 100
' FC(0)=$38:FC(1)=$44:FC(2)=$44:FC(3)=$48:FC(4)=$7F ' // d
' Case 101
' FC(0)=$38:FC(1)=$54:FC(2)=$54:FC(3)=$54:FC(4)=$18 ' // e
' Case 102
' FC(0)=$08:FC(1)=$7E:FC(2)=$09:FC(3)=$01:FC(4)=$02 ' // f
' Case 103
' FC(0)=$0C:FC(1)=$52:FC(2)=$52:FC(3)=$52:FC(4)=$3E ' // g
' Case 104
' FC(0)=$7F:FC(1)=$08:FC(2)=$04:FC(3)=$04:FC(4)=$78 ' // h
' Case 105
' FC(0)=$00:FC(1)=$44:FC(2)=$7D:FC(3)=$40:FC(4)=$00 ' // i
' Case 106
' FC(0)=$20:FC(1)=$40:FC(2)=$44:FC(3)=$3D:FC(4)=$00 ' // j
' Case 107
' FC(0)=$7F:FC(1)=$10:FC(2)=$28:FC(3)=$44:FC(4)=$00 ' // k
' Case 108
' FC(0)=$00:FC(1)=$41:FC(2)=$7F:FC(3)=$40:FC(4)=$00 ' // l
' Case 109
' FC(0)=$7C:FC(1)=$04:FC(2)=$18:FC(3)=$04:FC(4)=$78 ' // m
' Case 110
' FC(0)=$7C:FC(1)=$08:FC(2)=$04:FC(3)=$04:FC(4)=$78 ' // n
' Case 111
' FC(0)=$38:FC(1)=$44:FC(2)=$44:FC(3)=$44:FC(4)=$38 ' // o
' Case 112
' FC(0)=$7C:FC(1)=$14:FC(2)=$14:FC(3)=$14:FC(4)=$08 ' // p
' Case 113
' FC(0)=$08:FC(1)=$14:FC(2)=$14:FC(3)=$18:FC(4)=$7C ' // q
' Case 114
' FC(0)=$7C:FC(1)=$08:FC(2)=$04:FC(3)=$04:FC(4)=$08 ' // r
' Case 115
' FC(0)=$48:FC(1)=$54:FC(2)=$54:FC(3)=$54:FC(4)=$20 ' // s
' Case 116
' FC(0)=$04:FC(1)=$3F:FC(2)=$44:FC(3)=$40:FC(4)=$20 ' // t
' Case 117
' FC(0)=$3C:FC(1)=$40:FC(2)=$40:FC(3)=$20:FC(4)=$7C ' // u
' Case 118
' FC(0)=$1C:FC(1)=$20:FC(2)=$40:FC(3)=$20:FC(4)=$1C ' // v
' Case 119
' FC(0)=$3C:FC(1)=$40:FC(2)=$30:FC(3)=$40:FC(4)=$3C ' // w
' Case 120
' FC(0)=$44:FC(1)=$28:FC(2)=$10:FC(3)=$28:FC(4)=$44 ' // x
' Case 121
' FC(0)=$0C:FC(1)=$50:FC(2)=$50:FC(3)=$50:FC(4)=$3C ' // y
' Case 122
' FC(0)=$44:FC(1)=$64:FC(2)=$54:FC(3)=$4C:FC(4)=$44 ' // z
' case 123
' FC(0)=$00:FC(1)=$08:FC(2)=$36:FC(3)=$41:FC(4)=$00' // {
' case 124
' FC(0)=$00:FC(1)=$00:FC(2)=$7F:FC(3)=$00:FC(4)=$00 ' // |
' case 125
' FC(0)=$00:FC(1)=$41:FC(2)=$36:FC(3)=$08:FC(4)=$00' // }
' case 126
' FC(0)=$10:FC(1)=$08:FC(2)=$08:FC(3)=$10:FC(4)=$08' // ~
'case 127
' FC(0)=$10:FC(1)=$08:FC(2)=$08:FC(3)=$10:FC(4)=$08' // DEL
'Case 128
' FC(0)=$55:FC(1)=$2A:FC(2)=$55:FC(3)=$2A:FC(4)=$55 ' // 55 (shaded)
end SELECT
Write_LCD:
High Lcd_DC
SHiftOUT Lcd_SDO , Lcd_CLK , MSBFIRST, [ FC(0),FC(1),FC(2),FC(3),FC(4),$00 ]
Low Lcd_DC
Return
I don't really understand the inner working of these screens, but could I use the above table on any OLED / TFT screen that uses the same protocol, or are the charater generation tables different for each device ?
Re: GLCD / OLED serial displays
Hello Scampy,
Here is my advice...take a look at the library made by Richard here:
http://www.picbasic.co.uk/forum/showthread.php?t=20115
It is very good and it works great.
And you can use 2 types of displays ( with or without touch capability ) better than the traditional 3310 displays.
Regards
Rui
Re: GLCD / OLED serial displays
Rui,
Thanks for the reply. The only problem is I'm running 2.60c so don't have the usercommand option that is a feature of PBP3.0
I have a nice 2.8 TFT colour display with 240x320 resolution and SPI interface that would be nice to work with
