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apps/examples/ft80x: Need to clear display before showing example title display.

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This commit is contained in:
Gregory Nutt 2018-02-23 15:40:44 -06:00
parent 9095bd4f1b
commit 4e4e22bb9a
1 changed files with 24 additions and 9 deletions
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33
examples/ft80x/ft80x_main.c
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@ -163,7 +163,14 @@ static const struct ft80x_exampleinfo_s g_coproc[] =
static int ft80x_showname(int fd, FAR struct ft80x_dlbuffer_s *buffer, static int ft80x_showname(int fd, FAR struct ft80x_dlbuffer_s *buffer,
FAR const char *name) FAR const char *name)
{ {
struct ft80x_cmd_text_s text; struct
{
struct ft80x_cmd32_s clearrgb;
struct ft80x_cmd32_s clear;
struct ft80x_cmd32_s colorrgb;
struct ft80x_cmd_text_s text;
} cmds;
int ret; int ret;
/* Mkae sure that the backlight off */ /* Mkae sure that the backlight off */
@ -179,15 +186,23 @@ static int ft80x_showname(int fd, FAR struct ft80x_dlbuffer_s *buffer,
return ret; return ret;
} }
/* Use the CMD_TEXT co-processor command */ /* Clear the display */
text.cmd = FT80X_CMD_TEXT; cmds.clearrgb.cmd = FT80X_CLEAR_COLOR_RGB(0, 0, 0x80);
text.x = 80; cmds.clear.cmd = FT80X_CLEAR(1 ,1, 1);
text.y = 60; cmds.colorrgb.cmd = FT80X_COLOR_RGB(0xff, 0xff, 0xff);
text.font = 31;
text.options = FT80X_OPT_CENTER;
ret = ft80x_dl_data(fd, buffer, &text, sizeof(struct ft80x_cmd_text_s)); /* Use the CMD_TEXT co-processor command to show the name of the next
* example at the center of the display.
*/
cmds.text.cmd = FT80X_CMD_TEXT;
cmds.text.x = FT80X_DISPLAY_WIDTH / 2;
cmds.text.y = FT80X_DISPLAY_HEIGHT / 2;
cmds.text.font = 31;
cmds.text.options = FT80X_OPT_CENTER;
ret = ft80x_dl_data(fd, buffer, &cmds, sizeof(cmds));
if (ret < 0) if (ret < 0)
{ {
ft80x_err("ERROR: ft80x_dl_data failed: %d\n", ret); ft80x_err("ERROR: ft80x_dl_data failed: %d\n", ret);
@ -210,7 +225,7 @@ static int ft80x_showname(int fd, FAR struct ft80x_dlbuffer_s *buffer,
return ret; return ret;
} }
/* Fade on, then wait bit so that the user can read the name */ /* Fade on then wait bit so that the user can read the example name */
(void)ft80x_backlight_fade(fd, 100, 1000); (void)ft80x_backlight_fade(fd, 100, 1000);
(void)sleep(1); (void)sleep(1);