GT20L16J1Y 16x16 Japanese font ROM access library
Dependents: UTF-8_test hello_GT20L16J1Y_FONT GSDPlayer Nucleo_AQM1248A ... more
GT20L16Y1J_font.cpp@0:61b32e34bcbf, 2014-01-14 (annotated)
- Committer:
- MACRUM
- Date:
- Tue Jan 14 07:36:32 2014 +0000
- Revision:
- 0:61b32e34bcbf
- Child:
- 2:aed20a7685b9
Initial release of GT20L16J1Y_font library
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
MACRUM | 0:61b32e34bcbf | 1 | #include "mbed.h" |
MACRUM | 0:61b32e34bcbf | 2 | #include "GT20L16J1Y_font.h" |
MACRUM | 0:61b32e34bcbf | 3 | |
MACRUM | 0:61b32e34bcbf | 4 | GT20L16J1Y_FONT::GT20L16J1Y_FONT() : _spi(p11, p12, p13), _CS(p10) { |
MACRUM | 0:61b32e34bcbf | 5 | } |
MACRUM | 0:61b32e34bcbf | 6 | |
MACRUM | 0:61b32e34bcbf | 7 | void GT20L16J1Y_FONT::read(unsigned short code) { |
MACRUM | 0:61b32e34bcbf | 8 | unsigned char c1, c2, MSB,LSB; |
MACRUM | 0:61b32e34bcbf | 9 | uint32_t address, seq; |
MACRUM | 0:61b32e34bcbf | 10 | |
MACRUM | 0:61b32e34bcbf | 11 | // SJIS to kuten code conversion |
MACRUM | 0:61b32e34bcbf | 12 | c1 = (code>>8); |
MACRUM | 0:61b32e34bcbf | 13 | c2 = (code & 0xFF); |
MACRUM | 0:61b32e34bcbf | 14 | seq = (c1<=159 ? c1-129 : c1-193)*188 + (c2<=126 ? c2-64 : c2-65); |
MACRUM | 0:61b32e34bcbf | 15 | MSB = seq / 94 + 1; |
MACRUM | 0:61b32e34bcbf | 16 | LSB = seq % 94 + 1; |
MACRUM | 0:61b32e34bcbf | 17 | address = 0; |
MACRUM | 0:61b32e34bcbf | 18 | |
MACRUM | 0:61b32e34bcbf | 19 | if( MSB >= 1 && MSB <= 15 && LSB >= 1 && LSB <= 94) |
MACRUM | 0:61b32e34bcbf | 20 | address =( (MSB - 1) * 94 + (LSB - 1))*32; |
MACRUM | 0:61b32e34bcbf | 21 | else if(MSB >= 16 && MSB <= 47 && LSB >= 1 && LSB <= 94) |
MACRUM | 0:61b32e34bcbf | 22 | address =( (MSB - 16) * 94 + (LSB - 1))*32 + 0x0AA40L; |
MACRUM | 0:61b32e34bcbf | 23 | else if(MSB >= 48 && MSB <= 84 && LSB >= 1 && LSB <= 94) |
MACRUM | 0:61b32e34bcbf | 24 | address = ((MSB - 48) * 94 + (LSB - 1))*32 + 0x21CDFL; |
MACRUM | 0:61b32e34bcbf | 25 | else if(MSB == 85 && LSB >= 1 && LSB <= 94) |
MACRUM | 0:61b32e34bcbf | 26 | address = ((MSB - 85) * 94 + (LSB - 1))*32 + 0x3C4A0L; |
MACRUM | 0:61b32e34bcbf | 27 | else if(MSB >= 88 && MSB <= 89 && LSB >= 1 && LSB <= 94) |
MACRUM | 0:61b32e34bcbf | 28 | address = ((MSB - 88) * 94 + (LSB - 1))*32 + 0x3D060L; |
MACRUM | 0:61b32e34bcbf | 29 | |
MACRUM | 0:61b32e34bcbf | 30 | // Deselect the device |
MACRUM | 0:61b32e34bcbf | 31 | _CS = 1; |
MACRUM | 0:61b32e34bcbf | 32 | |
MACRUM | 0:61b32e34bcbf | 33 | // Setup the spi for 8 bit data, high steady state clock |
MACRUM | 0:61b32e34bcbf | 34 | _spi.format(8,3); |
MACRUM | 0:61b32e34bcbf | 35 | _spi.frequency(1000000); |
MACRUM | 0:61b32e34bcbf | 36 | |
MACRUM | 0:61b32e34bcbf | 37 | // Select the device by seting chip select low |
MACRUM | 0:61b32e34bcbf | 38 | _CS = 0; |
MACRUM | 0:61b32e34bcbf | 39 | _spi.write(0x03); // Read data byte |
MACRUM | 0:61b32e34bcbf | 40 | _spi.write(address>>16 & 0xff); |
MACRUM | 0:61b32e34bcbf | 41 | _spi.write(address>>8 & 0xff); |
MACRUM | 0:61b32e34bcbf | 42 | _spi.write(address & 0xff); |
MACRUM | 0:61b32e34bcbf | 43 | |
MACRUM | 0:61b32e34bcbf | 44 | // Send a dummy byte to receive the contents of the WHOAMI register |
MACRUM | 0:61b32e34bcbf | 45 | for(int i=0; i<32; i++) |
MACRUM | 0:61b32e34bcbf | 46 | { |
MACRUM | 0:61b32e34bcbf | 47 | bitmap[i] = _spi.write(0x00); |
MACRUM | 0:61b32e34bcbf | 48 | } |
MACRUM | 0:61b32e34bcbf | 49 | |
MACRUM | 0:61b32e34bcbf | 50 | // Deselect the device |
MACRUM | 0:61b32e34bcbf | 51 | _CS = 1; |
MACRUM | 0:61b32e34bcbf | 52 | } |