other/dogm128: Coding-style fixes.
This commit is contained in:
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cd259c6eb3
commit
f3f1123d07
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@ -25,100 +25,105 @@ u8 dogm128_cursor_y;
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void dogm128_send_command(u8 command)
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{
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u32 counter;
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u32 i;
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gpio_clear(DOGM128_A0_PORT, DOGM128_A0_PIN); /* A0 low for commands */
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gpio_clear(DOGM128_A0_PORT, DOGM128_A0_PIN); /* A0 low for commands */
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spi_send(DOGM128_SPI, command);
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for (counter = 0; counter<=500; counter++) /* wait */
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{}
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for (i = 0; i <= 500; i++) /* Wait a bit. */
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;
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}
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void dogm128_send_data(u8 data)
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{
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u32 counter;
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u32 i;
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gpio_set(DOGM128_A0_PORT, DOGM128_A0_PIN); /* A0 high for data */
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gpio_set(DOGM128_A0_PORT, DOGM128_A0_PIN); /* A0 high for data */
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spi_send(DOGM128_SPI, data);
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for (counter = 0; counter<=500; counter++) /* wait */
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{}
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for (i = 0; i <= 500; i++) /* Wait a bit. */
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;
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}
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void dogm128_init()
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void dogm128_init(void)
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{
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u32 counter;
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u32 i;
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/* reset the display */
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gpio_clear(DOGM128_RESET_PORT, DOGM128_RESET_PIN); /* reset low for dogm128 */
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for (counter = 0; counter<=60000; counter++) /* wait */
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{}
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gpio_set(DOGM128_RESET_PORT, DOGM128_RESET_PIN); /* reset high for dogm128 */
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/* Reset the display (reset low for dogm128). */
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gpio_clear(DOGM128_RESET_PORT, DOGM128_RESET_PIN);
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for (i = 0; i <= 60000; i++) /* Wait a bit. */
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;
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for (counter = 0; counter<=60000; counter++) /* wait */
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{}
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/* Get the display out of reset (reset high for dogm128). */
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gpio_set(DOGM128_RESET_PORT, DOGM128_RESET_PIN);
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for (i = 0; i <= 60000; i++) /* Wait a bit. */
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;
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gpio_clear(DOGM128_A0_PORT, DOGM128_A0_PIN); /* A0 low for init */
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gpio_clear(DOGM128_A0_PORT, DOGM128_A0_PIN); /* A0 low for init */
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/* tell the display that we want to start */
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spi_set_nss_low(DOGM128_SPI);
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/* Tell the display that we want to start. */
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spi_set_nss_low(DOGM128_SPI);
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/* init sequence */
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dogm128_send_command(DOGM128_DISPLAY_START_ADDRESS_BASE + 0);
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dogm128_send_command(DOGM128_ADC_REVERSE);
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dogm128_send_command(DOGM128_COM_OUTPUT_SCAN_NORMAL);
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dogm128_send_command(DOGM128_DISPLAY_NORMAL);
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dogm128_send_command(DOGM128_BIAS_19);
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dogm128_send_command(DOGM128_POWER_CONTROL_BASE + 0x07);
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dogm128_send_command(DOGM128_BOOSTER_RATIO_SET);
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dogm128_send_command(0x00); /* Booster x4 */
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dogm128_send_command(DOGM128_V0_OUTPUT_RESISTOR_BASE + 0x07);
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dogm128_send_command(DOGM128_ELECTRONIC_VOLUME_MODE_SET);
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dogm128_send_command(0x16); /* Contrast */
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dogm128_send_command(DOGM128_STATIC_INDICATOR_OFF);
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dogm128_send_command(0x00); /* Flashing OFF */
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dogm128_send_command(DOGM128_DISPLAY_ON);
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/* Init sequence. */
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dogm128_send_command(DOGM128_DISPLAY_START_ADDRESS_BASE + 0);
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dogm128_send_command(DOGM128_ADC_REVERSE);
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dogm128_send_command(DOGM128_COM_OUTPUT_SCAN_NORMAL);
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dogm128_send_command(DOGM128_DISPLAY_NORMAL);
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dogm128_send_command(DOGM128_BIAS_19);
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dogm128_send_command(DOGM128_POWER_CONTROL_BASE + 0x07);
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dogm128_send_command(DOGM128_BOOSTER_RATIO_SET);
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dogm128_send_command(0x00); /* Booster x4 */
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dogm128_send_command(DOGM128_V0_OUTPUT_RESISTOR_BASE + 0x07);
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dogm128_send_command(DOGM128_ELECTRONIC_VOLUME_MODE_SET);
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dogm128_send_command(0x16); /* Contrast */
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dogm128_send_command(DOGM128_STATIC_INDICATOR_OFF);
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dogm128_send_command(0x00); /* Flashing OFF */
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dogm128_send_command(DOGM128_DISPLAY_ON);
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/* end transfer */
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spi_set_nss_high(DOGM128_SPI);
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/* End transfer. */
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spi_set_nss_high(DOGM128_SPI);
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}
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void dogm128_print_char(u8 data)
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{
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u8 i;
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u8 page;
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u8 shift;
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u8 xcoord;
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u8 ycoord;
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u8 i, page, shift, xcoord, ycoord;
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xcoord = dogm128_cursor_x;
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ycoord = dogm128_cursor_y;
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page = (63 - ycoord) / 8; /* the display consists of 8 lines a 8 dots each. */
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/* The display consists of 8 lines a 8 dots each. */
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page = (63 - ycoord) / 8;
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shift = (7 -((63 - ycoord) % 8)); /* vertical shift */
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/* font is 8x5 so iterate each column of the character */
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/* Font is 8x5 so iterate each column of the character. */
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for (i = 0; i <= 5; i++) {
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/* right border reached? */
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/* Right border reached? */
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if ((xcoord + i) > 127)
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return;
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dogm128_cursor_x++;
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/* 0xAA = end of character - no dots in this line */
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if (dogm128_font[data - 0x20][i] == 0xAA) {
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dogm128_ram[(page * 128) + xcoord + i] &= ~(0xFF >> shift); /* clear area */
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if ((shift > 0) && (page > 0))
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dogm128_ram[((page - 1) * 128) + xcoord + i] &= ~(0xFF << (8 - shift)); /* clear area */
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/* 0xAA = end of character - no dots in this line. */
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if (dogm128_font[data - 0x20][i] == 0xAA) {
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dogm128_ram[(page * 128) + xcoord + i] &=
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~(0xFF >> shift); /* Clear area. */
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if ((shift > 0) && (page > 0))
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dogm128_ram[((page - 1) * 128) + xcoord + i]
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&= ~(0xFF << (8 - shift)); /* Clear area. */
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return;
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}
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/* lower part */
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dogm128_ram[(page * 128) + xcoord + i] &= ~(0xFF >> shift); /* clear area */
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dogm128_ram[(page * 128) + xcoord + i] = (dogm128_font[data - 0x20][i] >> shift);
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/* higher part if needed */
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/* Lower part. */
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dogm128_ram[(page * 128) + xcoord + i] &=
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~(0xFF >> shift); /* Clear area. */
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dogm128_ram[(page * 128) + xcoord + i] =
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(dogm128_font[data - 0x20][i] >> shift);
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/* Higher part if needed. */
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if ((shift > 0) && (page > 0)) {
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dogm128_ram[((page - 1) * 128) + xcoord + i] &= ~(0xFF << (8 - shift)); /* clear area */
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dogm128_ram[((page - 1) * 128) + xcoord + i] = (dogm128_font[data - 0x20][i] << (8 - shift));
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dogm128_ram[((page - 1) * 128) + xcoord + i] &=
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~(0xFF << (8 - shift)); /* Clear area. */
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dogm128_ram[((page - 1) * 128) + xcoord + i] =
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(dogm128_font[data - 0x20][i] << (8 - shift));
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}
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}
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}
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@ -129,7 +134,7 @@ void dogm128_set_cursor(u8 xcoord, u8 ycoord)
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dogm128_cursor_y = ycoord;
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}
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void dogm128_print_string(char * s)
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void dogm128_print_string(char *s)
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{
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while (*s != 0) {
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dogm128_print_char(*s);
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@ -139,50 +144,57 @@ void dogm128_print_string(char * s)
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void dogm128_set_dot(u8 xcoord, u8 ycoord)
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{
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dogm128_ram[(((63 - ycoord) / 8) * 128) + xcoord] |= (1 << ((63 - ycoord) % 8));
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dogm128_ram[(((63 - ycoord) / 8) * 128) + xcoord] |=
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(1 << ((63 - ycoord) % 8));
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}
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void dogm128_clear_dot(u8 xcoord, u8 ycoord)
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{
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dogm128_ram[(((63 - ycoord) / 8) * 128) + xcoord] &= ~(1 << ((63 - ycoord) % 8));
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dogm128_ram[(((63 - ycoord) / 8) * 128) + xcoord] &=
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~(1 << ((63 - ycoord) % 8));
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}
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void dogm128_update_display()
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void dogm128_update_display(void)
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{
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u8 page;
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u8 column;
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u8 page, column;
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/* tell the display that we want to start */
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/* Tell the display that we want to start. */
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spi_set_nss_low(DOGM128_SPI);
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for (page = 0; page <= 7; page++) {
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dogm128_send_command(0xB0 + page); /* set page */
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dogm128_send_command(0x10); /* set column upper address to 0 */
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dogm128_send_command(0x00); /* set column lower address to 0 */
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dogm128_send_command(0xB0 + page); /* Set page. */
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dogm128_send_command(0x10); /* Set column upper address to 0. */
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dogm128_send_command(0x00); /* Set column lower address to 0. */
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for (column = 0; column <= 127; column++) {
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for (column = 0; column <= 127; column++)
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dogm128_send_data(dogm128_ram[(page * 128) + column]);
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}
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}
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spi_set_nss_high(DOGM128_SPI);
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spi_set_nss_high(DOGM128_SPI);
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}
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void dogm128_clear()
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void dogm128_clear(void)
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{
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u16 i;
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for (i = 0; i<=1023; i++) {
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int i;
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for (i = 0; i <= 1023; i++)
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dogm128_ram[i] = 0;
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}
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dogm128_update_display();
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}
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/* This is a non-monospace font definition (upside down for better handling).
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* 0xAA is the end of the character so its not space efficient in your memory, but on your display.
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* We are starting with " " as the first printable character at 0x20, so we have to substract 0x20 later.
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* Its the only defined to 127/0x7F so if you have german umlauts or other special characters from above
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* you have to expand this definition a little bit. */
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/*
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* This is a non-monospace font definition (upside down for better handling).
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* 0xAA is the end of the character so it's not space efficient in your memory,
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* but on your display.
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*
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* We are starting with " " as the first printable character at 0x20, so we
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* have to substract 0x20 later.
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*
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* Its the only defined to 127/0x7F so if you have German umlauts or other
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* special characters from above you have to expand this definition a
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* little bit.
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*/
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const u8 dogm128_font[96][6] = {
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@ -192,18 +204,18 @@ const u8 dogm128_font[96][6] = {
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/* 23 # */ {0x28, 0x7C, 0x28, 0x7C, 0x28, 0xAA},
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/* 24 $ */ {0x24, 0x2A, 0x7F, 0x2A, 0x10, 0xAA},
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/* 25 % */ {0x62, 0x18, 0x46, 0xAA, 0xAA, 0xAA},
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/* 26 & */ {0x30, 0x4C, 0x5A, 0x24, 0x50, 0xAA},
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/* 26 & */ {0x30, 0x4C, 0x5A, 0x24, 0x50, 0xAA},
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/* 27 ' */ {0x06, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA},
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/* 28 ( */ {0x3E, 0x41, 0xAA, 0xAA, 0xAA, 0xAA},
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/* 29 ) */ {0x41, 0x3E, 0xAA, 0xAA, 0xAA, 0xAA},
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/* 2A * */ {0x28, 0x10, 0x7C, 0x10, 0x28, 0xAA},
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/* 2A * */ {0x28, 0x10, 0x7C, 0x10, 0x28, 0xAA},
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/* 2B + */ {0x10, 0x38, 0x10, 0xAA, 0xAA, 0xAA},
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/* 2C , */ {0xC0, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA},
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/* 2D - */ {0x10, 0x10, 0x10, 0xAA, 0xAA, 0xAA},
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/* 2E . */ {0x40, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA},
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/* 2F / */ {0x60, 0x18, 0x06, 0xAA, 0xAA, 0xAA},
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/* 30 0 */ {0x3C, 0x42, 0x42, 0x3C, 0xAA, 0xAA},
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/* 30 0 */ {0x3C, 0x42, 0x42, 0x3C, 0xAA, 0xAA},
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/* 31 1 */ {0x44, 0x7E, 0x40, 0xAA, 0xAA, 0xAA},
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/* 32 2 */ {0x44, 0x62, 0x52, 0x4C, 0xAA, 0xAA},
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/* 33 3 */ {0x4A, 0x4A, 0x34, 0xAA, 0xAA, 0xAA},
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@ -286,6 +298,5 @@ const u8 dogm128_font[96][6] = {
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/* 7C | */ {0x7E, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA},
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/* 7D } */ {0x41, 0x36, 0x08, 0xAA, 0xAA, 0xAA},
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/* 7E ~ */ {0x20, 0x10, 0x20, 0x10, 0xAA, 0xAA},
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/* 7F DEL */ {0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA}
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/* 7F DEL */ {0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA},
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};
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@ -24,11 +24,13 @@
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#include <libopencm3/stm32/f1/gpio.h>
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#include <libopencm3/stm32/spi.h>
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/* PB10 GPIO - ~RESET
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/*
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* PB10 GPIO - ~RESET
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* PB12 SPI2_NSS - ~CS1
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* PB13 SPI2_SCK - SCL
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* PB14 SPI2_MISO - A0
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* PB15 SPI2_MOSI - SI */
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* PB13 SPI2_SCK - SCL
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* PB14 SPI2_MISO - A0
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* PB15 SPI2_MOSI - SI
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*/
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#define DOGM128_SPI SPI2
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#define DOGM128_RESET_PIN GPIO10
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@ -75,12 +77,12 @@ extern u8 dogm128_cursor_y;
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void dogm128_send_command(u8 command);
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void dogm128_set_cursor(u8 xcoord, u8 ycoord);
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void dogm128_print_char(u8 data);
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void dogm128_print_string(char * s);
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void dogm128_print_string(char *s);
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void dogm128_set_dot(u8 xcoord, u8 ycoord);
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void dogm128_clear_dot(u8 xcoord, u8 ycoord);
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void dogm128_send_data(u8 data);
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void dogm128_init();
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void dogm128_update_display();
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void dogm128_clear();
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void dogm128_init(void);
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void dogm128_update_display(void);
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void dogm128_clear(void);
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#endif
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@ -40,7 +40,7 @@ void gpio_setup(void)
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/* A0 of DOGM128 */
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gpio_set_mode(GPIOB, GPIO_MODE_OUTPUT_50_MHZ,
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GPIO_CNF_OUTPUT_PUSHPULL, GPIO14);
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/*reset of DOGM128 */
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/* Reset of DOGM128 */
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gpio_set_mode(GPIOB, GPIO_MODE_OUTPUT_50_MHZ,
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GPIO_CNF_OUTPUT_PUSHPULL, GPIO10);
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@ -53,24 +53,28 @@ void gpio_setup(void)
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GPIO_CNF_OUTPUT_ALTFN_PUSHPULL, GPIO15);
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}
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void spi_setup()
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void spi_setup(void)
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{
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/* the DOGM128 display is connected to SPI2, so initialise it correctly */
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/* The DOGM128 display is connected to SPI2, so initialise it. */
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rcc_peripheral_enable_clock(&RCC_APB1ENR, RCC_APB1ENR_SPI2EN);
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spi_set_unidirectional_mode(DOGM128_SPI); /* we want to send only */
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spi_disable_crc(DOGM128_SPI); /* no CRC for this slave */
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spi_set_dff_8bit(DOGM128_SPI); /* 8-bit dataword-length */
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spi_set_full_duplex_mode(DOGM128_SPI); /* not receive-only */
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spi_enable_software_slave_management(DOGM128_SPI); /* we want to handle the CS signal in software */
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spi_set_nss_high(DOGM128_SPI);
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spi_set_baudrate_prescaler(DOGM128_SPI, SPI_CR1_BR_FPCLK_DIV_256); /* PCLOCK/256 as clock */
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spi_set_master_mode(DOGM128_SPI); /* we want to control everything and generate the clock -> master */
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spi_set_clock_polarity_1(DOGM128_SPI); /* sck idle state high */
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spi_set_clock_phase_1(DOGM128_SPI); /* bit is taken on the second (rising edge) of sck */
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spi_enable_ss_output(DOGM128_SPI);
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spi_enable(DOGM128_SPI);
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spi_set_unidirectional_mode(DOGM128_SPI); /* We want to send only. */
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spi_disable_crc(DOGM128_SPI); /* No CRC for this slave. */
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spi_set_dff_8bit(DOGM128_SPI); /* 8-bit dataword-length */
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spi_set_full_duplex_mode(DOGM128_SPI); /* Not receive-only */
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/* We want to handle the CS signal in software. */
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spi_enable_software_slave_management(DOGM128_SPI);
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spi_set_nss_high(DOGM128_SPI);
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/* PCLOCK/256 as clock. */
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spi_set_baudrate_prescaler(DOGM128_SPI, SPI_CR1_BR_FPCLK_DIV_256);
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/* We want to control everything and generate the clock -> master. */
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spi_set_master_mode(DOGM128_SPI);
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spi_set_clock_polarity_1(DOGM128_SPI); /* SCK idle state high. */
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/* Bit is taken on the second (rising edge) of SCK. */
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spi_set_clock_phase_1(DOGM128_SPI);
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spi_enable_ss_output(DOGM128_SPI);
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spi_enable(DOGM128_SPI);
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}
|
||||
|
||||
int main(void)
|
||||
|
@ -81,7 +85,7 @@ int main(void)
|
|||
|
||||
gpio_clear(GPIOB, GPIO7); /* LED1 on */
|
||||
gpio_set(GPIOB, GPIO6); /* LED2 off */
|
||||
|
||||
|
||||
dogm128_init();
|
||||
dogm128_clear();
|
||||
|
||||
|
@ -93,18 +97,17 @@ int main(void)
|
|||
dogm128_print_string(" !#$%&'()*+,-./0123456789");
|
||||
dogm128_set_cursor(0, 32);
|
||||
dogm128_print_string(":;<=>?@[\\]^_`{|}~");
|
||||
|
||||
|
||||
dogm128_set_dot(10, 10);
|
||||
dogm128_set_dot(20, 10);
|
||||
dogm128_set_dot(30, 10);
|
||||
dogm128_set_dot(40, 10);
|
||||
dogm128_set_dot(50, 10);
|
||||
|
||||
|
||||
dogm128_update_display();
|
||||
|
||||
gpio_set(GPIOB, GPIO7); /* LED1 off */
|
||||
while(1); /* Halt. */
|
||||
gpio_set(GPIOB, GPIO7); /* LED1 off */
|
||||
while (1); /* Halt. */
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
|
Loading…
Reference in New Issue