Andy K
This module provides a simple API to the Maxim MAX7456 on-screen display chip
Diff: MAX7456CHARS.h
- Revision:
- 0:d7cd54ad4c3d
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/MAX7456CHARS.h Tue Nov 16 10:47:25 2010 +0000
@@ -0,0 +1,409 @@
+/****************************************************************************
+ * Copyright 2010 Andy Kirkham, Stellar Technologies Ltd
+ *
+ * This file is part of the Satellite Observers Workbench (SOWB).
+ *
+ * SOWB is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * SOWB is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with SOWB. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * $Id: main.cpp 5 2010-07-12 20:51:11Z ajk $
+ *
+ ***************************************************************************/
+
+typedef struct _max7456_custom_char {
+ unsigned char ascii;
+ const unsigned char *map;
+} MAX7456_CUSTOM_CHAR;
+
+/* Why doesn't the MAX7456 have a + symbol? wtf! */
+const unsigned char ascii_4d[54] = {
+ 0x55, 0x55, 0x55,
+ 0x55, 0x55, 0x55,
+ 0x55, 0x55, 0x55,
+ 0x55, 0x55, 0x55,
+ 0x55, 0x00, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x00, 0x28, 0x00,
+ 0x4A, 0xAA, 0xA1,
+ 0x4A, 0xAA, 0xA1,
+ 0x00, 0x28, 0x00,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x00, 0x55,
+ 0x55, 0x55, 0x55,
+ 0x55, 0x55, 0x55,
+ 0x55, 0x55, 0x55,
+ 0x55, 0x55, 0x55 };
+
+const unsigned char crosshair1_left[54] = {
+ 0x55, 0x55, 0x56, // 0
+ 0x55, 0x55, 0x56, // 1
+ 0x55, 0x55, 0x56, // 2
+ 0x55, 0x55, 0x56, // 3
+ 0x55, 0x55, 0x56, // 4
+ 0x55, 0x55, 0x56, // 5
+ 0x55, 0x55, 0x55, // 6
+ 0x55, 0x55, 0x55, // 7
+ 0x55, 0xAA, 0x95, // 8
+ 0x55, 0xAA, 0x95, // 9 - 8
+ 0x55, 0x55, 0x55, // 10 - 7
+ 0x55, 0x55, 0x55, // 11 - 6
+ 0x55, 0x55, 0x56, // 12 - 5
+ 0x55, 0x55, 0x56, // 13 - 4
+ 0x55, 0x55, 0x56, // 14 - 3
+ 0x55, 0x55, 0x56, // 15 - 2
+ 0x55, 0x55, 0x56, // 16 - 1
+ 0x55, 0x55, 0x56 };
+
+const unsigned char crosshair1_right[54] = {
+ 0x95, 0x55, 0x55, // 0
+ 0x95, 0x55, 0x55, // 1
+ 0x95, 0x55, 0x55, // 2
+ 0x95, 0x55, 0x55, // 3
+ 0x95, 0x55, 0x55, // 4
+ 0x95, 0x55, 0x55, // 5
+ 0x55, 0x55, 0x55, // 6
+ 0x55, 0x55, 0x55, // 7
+ 0x56, 0xAA, 0x55, // 8
+ 0x56, 0xAA, 0x55, // 9 - 8
+ 0x55, 0x55, 0x55, // 10 - 7
+ 0x55, 0x55, 0x55, // 11 - 6
+ 0x95, 0x55, 0x55, // 12 - 5
+ 0x95, 0x55, 0x55, // 13 - 4
+ 0x95, 0x55, 0x55, // 14 - 3
+ 0x95, 0x55, 0x55, // 15 - 2
+ 0x95, 0x55, 0x55, // 16 - 1
+ 0x95, 0x55, 0x55 };
+
+const unsigned char crosshair_centre[54] = {
+ 0x55, 0x28, 0x55, // 0
+ 0x55, 0x28, 0x55, // 1
+ 0x55, 0x28, 0x55, // 2
+ 0x55, 0x28, 0x55, // 3
+ 0x55, 0x28, 0x55, // 4
+ 0x55, 0x00, 0x55, // 5
+ 0x55, 0x55, 0x55, // 6
+ 0x01, 0x55, 0x40, // 7
+ 0xA1, 0x69, 0x4A, // 8
+ 0xA1, 0x69, 0x4A, // 9
+ 0x01, 0x55, 0x40, // 10
+ 0x55, 0x55, 0x55, // 11
+ 0x55, 0x00, 0x55, // 12
+ 0x55, 0x28, 0x55, // 13
+ 0x55, 0x28, 0x55, // 14
+ 0x55, 0x28, 0x55, // 15
+ 0x55, 0x28, 0x55, // 16
+ 0x55, 0x28, 0x55 };
+
+
+const unsigned char ascii_b0[54] = {
+ 0x55, 0x55, 0x55, // 0
+ 0x55, 0x55, 0x55, // 1
+ 0x50, 0x01, 0x55, // 2
+ 0x42, 0xA0, 0x55, // 3
+ 0x0A, 0xA8, 0x15, // 4
+ 0x28, 0x0A, 0x15, // 5
+ 0x28, 0x0A, 0x15, // 6
+ 0x28, 0x0A, 0x15,
+ 0x0A, 0xA8, 0x15,
+ 0x42, 0xA0, 0x55,
+ 0x50, 0x01, 0x55,
+ 0x55, 0x55, 0x55,
+ 0x55, 0x55, 0x55,
+ 0x55, 0x55, 0x55,
+ 0x55, 0x55, 0x55,
+ 0x55, 0x55, 0x55,
+ 0x55, 0x55, 0x55,
+ 0x55, 0x55, 0x55 };
+
+const unsigned char ascii_b3[54] = {
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55 };
+
+const unsigned char ascii_b4[54] = {
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x00, 0x28, 0x55,
+ 0xAA, 0xA8, 0x55,
+ 0xAA, 0xA8, 0x55,
+ 0x00, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55 };
+
+const unsigned char ascii_bf[54] = {
+ 0x55, 0x55, 0x55,
+ 0x55, 0x55, 0x55,
+ 0x55, 0x55, 0x55,
+ 0x55, 0x55, 0x55,
+ 0x55, 0x55, 0x55,
+ 0x55, 0x55, 0x55,
+ 0x55, 0x55, 0x55,
+ 0x00, 0x00, 0x55,
+ 0xAA, 0xA8, 0x55,
+ 0xAA, 0xA8, 0x55,
+ 0x00, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55 };
+
+const unsigned char ascii_c0[54] = {
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x00,
+ 0x55, 0x2A, 0xAA,
+ 0x55, 0x2A, 0xAA,
+ 0x55, 0x00, 0x00,
+ 0x55, 0x55, 0x55,
+ 0x55, 0x55, 0x55,
+ 0x55, 0x55, 0x55,
+ 0x55, 0x55, 0x55,
+ 0x55, 0x55, 0x55,
+ 0x55, 0x55, 0x55,
+ 0x55, 0x55, 0x55 };
+
+const unsigned char ascii_c1[54] = {
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x00, 0x28, 0x00,
+ 0xAA, 0xAA, 0xAA,
+ 0xAA, 0xAA, 0xAA,
+ 0x00, 0x00, 0x00,
+ 0x55, 0x55, 0x55,
+ 0x55, 0x55, 0x55,
+ 0x55, 0x55, 0x55,
+ 0x55, 0x55, 0x55,
+ 0x55, 0x55, 0x55,
+ 0x55, 0x55, 0x55,
+ 0x55, 0x55, 0x55 };
+
+const unsigned char ascii_c2[54] = {
+ 0x55, 0x55, 0x55,
+ 0x55, 0x55, 0x55,
+ 0x55, 0x55, 0x55,
+ 0x55, 0x55, 0x55,
+ 0x55, 0x55, 0x55,
+ 0x55, 0x55, 0x55,
+ 0x55, 0x55, 0x55,
+ 0x00, 0x00, 0x00,
+ 0xAA, 0xAA, 0xAA,
+ 0xAA, 0xAA, 0xAA,
+ 0x00, 0x28, 0x00,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55 };
+
+const unsigned char ascii_c3[54] = {
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x00,
+ 0x55, 0x2A, 0xAA,
+ 0x55, 0x2A, 0xAA,
+ 0x55, 0x28, 0x00,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55 };
+
+const unsigned char ascii_c4[54] = {
+ 0x55, 0x55, 0x55,
+ 0x55, 0x55, 0x55,
+ 0x55, 0x55, 0x55,
+ 0x55, 0x55, 0x55,
+ 0x55, 0x55, 0x55,
+ 0x55, 0x55, 0x55,
+ 0x55, 0x55, 0x55,
+ 0x00, 0x00, 0x00,
+ 0xAA, 0xAA, 0xAA,
+ 0xAA, 0xAA, 0xAA,
+ 0x00, 0x00, 0x00,
+ 0x55, 0x55, 0x55,
+ 0x55, 0x55, 0x55,
+ 0x55, 0x55, 0x55,
+ 0x55, 0x55, 0x55,
+ 0x55, 0x55, 0x55,
+ 0x55, 0x55, 0x55,
+ 0x55, 0x55, 0x55 };
+
+const unsigned char ascii_c5[54] = {
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x00, 0x28, 0x00,
+ 0xAA, 0xAA, 0xAA,
+ 0xAA, 0xAA, 0xAA,
+ 0x00, 0x28, 0x00,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55 };
+
+const unsigned char ascii_d9[54] = {
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x00, 0x28, 0x55,
+ 0xAA, 0xA8, 0x55,
+ 0xAA, 0xA8, 0x55,
+ 0x00, 0x00, 0x55,
+ 0x55, 0x55, 0x55,
+ 0x55, 0x55, 0x55,
+ 0x55, 0x55, 0x55,
+ 0x55, 0x55, 0x55,
+ 0x55, 0x55, 0x55,
+ 0x55, 0x55, 0x55,
+ 0x55, 0x55, 0x55 };
+
+const unsigned char ascii_da[54] = {
+ 0x55, 0x55, 0x55,
+ 0x55, 0x55, 0x55,
+ 0x55, 0x55, 0x55,
+ 0x55, 0x55, 0x55,
+ 0x55, 0x55, 0x55,
+ 0x55, 0x55, 0x55,
+ 0x55, 0x55, 0x55,
+ 0x55, 0x00, 0x00,
+ 0x55, 0x2A, 0xAA,
+ 0x55, 0x2A, 0xAA,
+ 0x55, 0x28, 0x00,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55,
+ 0x55, 0x28, 0x55 };
+
+/* For the curious, during testing I managed to screw up the
+ characher at CM index2, ('2'). So I needed to reprogram
+ index2 with the correct character, doh! Anyway, since I
+ went to the trouble I'll leave it in the code. I managed
+ to find a default CM map at:-
+ http://www.maxim-ic.com/tools/evkit/index.cfm?EVKit=558
+ If you download this then be aware that the DEFAULTCM.MCM file
+ defines each charmap as 64bytes, the 10 additional bytes need
+ to be stripped off as "not used". */
+#ifdef FIX_CM2_SCREW_UP
+const unsigned char ascii_02[54] = {
+ 0x55, 0x55, 0x55, // 01010101 01010101 01010101
+ 0x55, 0x55, 0x55, // 01010101 01010101 01010101
+ 0x54, 0x00, 0x15, // 01010100 00000000 00010101
+ 0x52, 0xAA, 0x85, // 01010010 10101010 10000101
+ 0x4A, 0xAA, 0xA1, // 01001010 10101010 10100001
+ 0x2A, 0x80, 0xA8, // 00101010 10000000 10101000
+ 0x2A, 0x15, 0x28, // 00101010 00010101 00101000
+ 0x40, 0x55, 0x28, // 01000000 01010101 00101000
+ 0x55, 0x54, 0xA8, // 01010101 01010100 10101000
+ 0x55, 0x52, 0xA1, // 01010101 01010010 10100001
+ 0x55, 0x4A, 0x85, // 01010101 01001010 10000101
+ 0x55, 0x2A, 0x15, // 01010101 00101010 00010101
+ 0x54, 0xA8, 0x55, // 01010100 10101000 01010101
+ 0x52, 0xA1, 0x55, // 01010010 10100001 01010101
+ 0x4A, 0x80, 0x01, // 01001010 10000000 00000001
+ 0x2A, 0xAA, 0xA8, // 00101010 10101010 10101000
+ 0x2A, 0xAA, 0xA8, // 00101010 10101010 10101000
+ 0x40, 0x00, 0x01 // 01000000 00000000 00000001
+};
+#endif
+
+/* Create an array of structures that link the data
+ characters to ASCII characters. The last entry
+ must always be null so we can detect the end of
+ the array. */
+MAX7456_CUSTOM_CHAR custom_chars[] = {
+ { 0xE0, crosshair1_left },
+ { 0xE1, crosshair1_right },
+ { 0xE2, crosshair_centre },
+ { 0x4D, ascii_4d },
+ { 0xB0, ascii_b0 },
+ { 0xB3, ascii_b3 },
+ { 0xB4, ascii_b4 },
+ { 0xBF, ascii_bf },
+ { 0xC0, ascii_c0 },
+ { 0xC1, ascii_c1 },
+ { 0xC2, ascii_c2 },
+ { 0xC3, ascii_c3 },
+ { 0xC4, ascii_c4 },
+ { 0xC5, ascii_c5 },
+ { 0xD9, ascii_d9 },
+ { 0xDA, ascii_da },
+#ifdef FIX_CM2_SCREW_UP
+ { 0x02, ascii_02 },
+#endif
+ { 0x00, 0 }
+};
+
+