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fix ascii check

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This commit is contained in:
King Kévin 2016-01-20 12:23:51 +01:00
parent 51549151c6
commit af8aedd1f6
1 changed files with 15 additions and 18 deletions
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33
main.c
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@ -239,14 +239,16 @@ static void vfd_digit(uint8_t nb, char c)
if (false) { // add the comma (not encoded)
vfd_data[1] |= (1<<(16));
}
if (((c&0x7f)<' ') || ((c&0x7f)>' '+LENGTH(ascii_7segments)-1)) { // unknown ASCII character
vfd_data[1] = 0; // add empty segments to memory
} else {
vfd_data[1] |= (ascii_7segments[c-' ']<<(17)); // add encoded segments to memory
}
vfd_data[2] = 0;
c &= 0x7f; // only take the ASCII part
if (c>=' ') { // only take printable characters
uint8_t i = c-' '; // get index for character
if (i<LENGTH(ascii_7segments)) {
vfd_data[1] |= (ascii_7segments[i]<<(17)); // add encoded segments to memory
}
}
vfd_data[2] = 0; // last part is not used
}
/* font for the 5x7 dot matrix display
@ -374,9 +376,9 @@ static void vfd_matrix(uint8_t nb, char c)
vfd_data[1] = 0;
}
if (c<0x80) {
uint8_t i = c-' ';
vfd_data[2] = 0;
vfd_data[2] = 0;
if ((c<0x80) && (c>=' ')) { // only take printable characters
uint8_t i = c-' '; // get index for character
if (i<LENGTH(ascii_font5x7)) {
vfd_data[1] |= ascii_font5x7[i][0]<<24;
vfd_data[2] |= ascii_font5x7[i][1]<<0;
@ -384,18 +386,14 @@ static void vfd_matrix(uint8_t nb, char c)
vfd_data[2] |= ascii_font5x7[i][3]<<16;
vfd_data[2] |= ascii_font5x7[i][4]<<24;
}
} else {
uint8_t i = c-0x80;
vfd_data[2] = 0;
} else if (c>0x7f) { // the non ASCII character are used for pictures
uint8_t i = c-0x80; // get index for character
if (i<LENGTH(ascii_pict5x7)) {
vfd_data[2] = 0;
vfd_data[1] |= ascii_pict5x7[i][0]<<24;
vfd_data[2] |= ascii_pict5x7[i][1]<<0;
vfd_data[2] |= ascii_pict5x7[i][2]<<8;
vfd_data[2] |= ascii_pict5x7[i][3]<<16;
vfd_data[2] |= ascii_pict5x7[i][4]<<24;
} else {
vfd_data[2] = 0;
}
}
}
@ -423,9 +421,8 @@ int main(void)
uint8_t matrix = 0;
char c = ' ';
vfd_digit(digit,c);
vfd_digit(digit,'0');
vfd_shift();
digit = (digit+1)%10;
// let the fluorescence glow up a bit
for (uint32_t i = 0; i < 0x2000; i++) {
__asm__("nop");