From 51549151c64bedb98de1d599b1d8ec7bc4a0c7db Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?King=20K=C3=A9vin?= Date: Wed, 20 Jan 2016 12:09:42 +0100 Subject: [PATCH] display characters on matrix --- main.c | 171 +++++++++++++++++++++++++++++++++++++++++++++++++++++---- 1 file changed, 160 insertions(+), 11 deletions(-) diff --git a/main.c b/main.c index 0eb9d82..363b670 100644 --- a/main.c +++ b/main.c @@ -32,6 +32,9 @@ #include "usart.h" // USART utilities #include "usb_cdcacm.h" // USB CDC ACM utilities +/* get the length of an array */ +#define LENGTH(x) (sizeof(x) / sizeof((x)[0])) + /* default output (i.e. for printf) */ int _write(int file, char *ptr, int len) { @@ -235,9 +238,10 @@ 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)>'~')) { // unknown ASCII character - vfd_data[1] |= (ascii_7segments[' '-' ']<<(17)); // add empty segments to memory + } + + 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 } @@ -245,9 +249,120 @@ static void vfd_digit(uint8_t nb, char c) vfd_data[2] = 0; } +/* font for the 5x7 dot matrix display + * from http://sunge.awardspace.com/glcd-sd/node4.html + * first value is left-most line + * LSB is top dot, MSB is not used + */ +static const uint8_t ascii_font5x7[][5] = { + {0x00, 0x00, 0x00, 0x00, 0x00}, // (space) + {0x00, 0x00, 0x5F, 0x00, 0x00}, // ! + {0x00, 0x07, 0x00, 0x07, 0x00}, // " + {0x14, 0x7F, 0x14, 0x7F, 0x14}, // # + {0x24, 0x2A, 0x7F, 0x2A, 0x12}, // $ + {0x23, 0x13, 0x08, 0x64, 0x62}, // % + {0x36, 0x49, 0x55, 0x22, 0x50}, // & + {0x00, 0x05, 0x03, 0x00, 0x00}, // ' + {0x00, 0x1C, 0x22, 0x41, 0x00}, // ( + {0x00, 0x41, 0x22, 0x1C, 0x00}, // ) + {0x08, 0x2A, 0x1C, 0x2A, 0x08}, // * + {0x08, 0x08, 0x3E, 0x08, 0x08}, // + + {0x00, 0x50, 0x30, 0x00, 0x00}, // , + {0x08, 0x08, 0x08, 0x08, 0x08}, // - + {0x00, 0x60, 0x60, 0x00, 0x00}, // . + {0x20, 0x10, 0x08, 0x04, 0x02}, // / + {0x3E, 0x51, 0x49, 0x45, 0x3E}, // 0 + {0x00, 0x42, 0x7F, 0x40, 0x00}, // 1 + {0x42, 0x61, 0x51, 0x49, 0x46}, // 2 + {0x21, 0x41, 0x45, 0x4B, 0x31}, // 3 + {0x18, 0x14, 0x12, 0x7F, 0x10}, // 4 + {0x27, 0x45, 0x45, 0x45, 0x39}, // 5 + {0x3C, 0x4A, 0x49, 0x49, 0x30}, // 6 + {0x01, 0x71, 0x09, 0x05, 0x03}, // 7 + {0x36, 0x49, 0x49, 0x49, 0x36}, // 8 + {0x06, 0x49, 0x49, 0x29, 0x1E}, // 9 + {0x00, 0x36, 0x36, 0x00, 0x00}, // : + {0x00, 0x56, 0x36, 0x00, 0x00}, // ; + {0x00, 0x08, 0x14, 0x22, 0x41}, // < + {0x14, 0x14, 0x14, 0x14, 0x14}, // = + {0x41, 0x22, 0x14, 0x08, 0x00}, // > + {0x02, 0x01, 0x51, 0x09, 0x06}, // ? + {0x32, 0x49, 0x79, 0x41, 0x3E}, // @ + {0x7E, 0x11, 0x11, 0x11, 0x7E}, // A + {0x7F, 0x49, 0x49, 0x49, 0x36}, // B + {0x3E, 0x41, 0x41, 0x41, 0x22}, // C + {0x7F, 0x41, 0x41, 0x22, 0x1C}, // D + {0x7F, 0x49, 0x49, 0x49, 0x41}, // E + {0x7F, 0x09, 0x09, 0x01, 0x01}, // F + {0x3E, 0x41, 0x41, 0x51, 0x32}, // G + {0x7F, 0x08, 0x08, 0x08, 0x7F}, // H + {0x00, 0x41, 0x7F, 0x41, 0x00}, // I + {0x20, 0x40, 0x41, 0x3F, 0x01}, // J + {0x7F, 0x08, 0x14, 0x22, 0x41}, // K + {0x7F, 0x40, 0x40, 0x40, 0x40}, // L + {0x7F, 0x02, 0x04, 0x02, 0x7F}, // M + {0x7F, 0x04, 0x08, 0x10, 0x7F}, // N + {0x3E, 0x41, 0x41, 0x41, 0x3E}, // O + {0x7F, 0x09, 0x09, 0x09, 0x06}, // P + {0x3E, 0x41, 0x51, 0x21, 0x5E}, // Q + {0x7F, 0x09, 0x19, 0x29, 0x46}, // R + {0x46, 0x49, 0x49, 0x49, 0x31}, // S + {0x01, 0x01, 0x7F, 0x01, 0x01}, // T + {0x3F, 0x40, 0x40, 0x40, 0x3F}, // U + {0x1F, 0x20, 0x40, 0x20, 0x1F}, // V + {0x7F, 0x20, 0x18, 0x20, 0x7F}, // W + {0x63, 0x14, 0x08, 0x14, 0x63}, // X + {0x03, 0x04, 0x78, 0x04, 0x03}, // Y + {0x61, 0x51, 0x49, 0x45, 0x43}, // Z + {0x00, 0x00, 0x7F, 0x41, 0x41}, // [ + {0x02, 0x04, 0x08, 0x10, 0x20}, // '\' + {0x41, 0x41, 0x7F, 0x00, 0x00}, // ] + {0x04, 0x02, 0x01, 0x02, 0x04}, // ^ + {0x40, 0x40, 0x40, 0x40, 0x40}, // _ + {0x00, 0x01, 0x02, 0x04, 0x00}, // ` + {0x20, 0x54, 0x54, 0x54, 0x78}, // a + {0x7F, 0x48, 0x44, 0x44, 0x38}, // b + {0x38, 0x44, 0x44, 0x44, 0x20}, // c + {0x38, 0x44, 0x44, 0x48, 0x7F}, // d + {0x38, 0x54, 0x54, 0x54, 0x18}, // e + {0x08, 0x7E, 0x09, 0x01, 0x02}, // f + {0x08, 0x14, 0x54, 0x54, 0x3C}, // g + {0x7F, 0x08, 0x04, 0x04, 0x78}, // h + {0x00, 0x44, 0x7D, 0x40, 0x00}, // i + {0x20, 0x40, 0x44, 0x3D, 0x00}, // j + {0x00, 0x7F, 0x10, 0x28, 0x44}, // k + {0x00, 0x41, 0x7F, 0x40, 0x00}, // l + {0x7C, 0x04, 0x18, 0x04, 0x78}, // m + {0x7C, 0x08, 0x04, 0x04, 0x78}, // n + {0x38, 0x44, 0x44, 0x44, 0x38}, // o + {0x7C, 0x14, 0x14, 0x14, 0x08}, // p + {0x08, 0x14, 0x14, 0x18, 0x7C}, // q + {0x7C, 0x08, 0x04, 0x04, 0x08}, // r + {0x48, 0x54, 0x54, 0x54, 0x20}, // s + {0x04, 0x3F, 0x44, 0x40, 0x20}, // t + {0x3C, 0x40, 0x40, 0x20, 0x7C}, // u + {0x1C, 0x20, 0x40, 0x20, 0x1C}, // v + {0x3C, 0x40, 0x30, 0x40, 0x3C}, // w + {0x44, 0x28, 0x10, 0x28, 0x44}, // x + {0x0C, 0x50, 0x50, 0x50, 0x3C}, // y + {0x44, 0x64, 0x54, 0x4C, 0x44}, // z + {0x00, 0x08, 0x36, 0x41, 0x00}, // { + {0x00, 0x00, 0x7F, 0x00, 0x00}, // | + {0x00, 0x41, 0x36, 0x08, 0x00}, // } + {0b00001000, 0b00000100, 0b00001100, 0b00001000, 0b00000100} // ~ +}; + +/* pictures for the 5x7 dot matrix display + * first value is left-most line + * LSB is top dot, MSB is not used + */ +static const uint8_t ascii_pict5x7[][5] = { + {0x08, 0x08, 0x2A, 0x1C, 0x08}, // -> + {0x08, 0x1C, 0x2A, 0x08, 0x08} // <- +}; + static void vfd_matrix(uint8_t nb, char c) { - (void)c; // there are only 12 matrix if (nb>11) { return; @@ -259,8 +374,30 @@ static void vfd_matrix(uint8_t nb, char c) vfd_data[1] = 0; } - vfd_data[1] |= 0xff000000; - vfd_data[2] = 0xffffffff; + if (c<0x80) { + uint8_t i = c-' '; + vfd_data[2] = 0; + if (i