Display test...

[home-hw.git] / test-display / main.c

diff --git a/test-display/main.c b/test-display/main.c
index 11b09f3f9538fce0c07c532e91324c8b08abc45e..47c553f573ce53dd6d8fb90a32221389920b1bf9 100644 (file)
--- a/test-display/main.c
+++ b/test-display/main.c
@@ -113,36 +113,59 @@ static void delay_ms(uint ms)
  *                                     (01)
  */
 
+static byte disp[4];
+static byte ctrl = 0x77;
 
-static void display_init(void)
+static void display_update(void)
 {
-       debug_puts("I2C init\n");
-       i2c_peripheral_disable(I2C1);
-        i2c_set_speed(I2C1, i2c_speed_sm_100k, rcc_apb1_frequency / 1000000);
-        i2c_peripheral_enable(I2C1);
-
-       debug_puts("I2C transfer\n");
-
-       // byte disp[] = { 0xb6, 0xb6, 0xb6, 0xb6 };
-       // byte disp[] = { 0x7f, 0x12, 0xbc, 0xb6 };
-       // byte disp[] = { 0xff, 0xff, 0xff, 0xff };
-       byte disp[] = { 0x80, 0x80, 0x80, 0xff };
-       byte cmds[] = { 0x00, 0x47, 0, 0, 0, 0 };
+       byte cmds[6];
+       cmds[0] = 0;
+       cmds[1] = ctrl;
        cmds[2] = (disp[0] & 0xf0) | (disp[2] >> 4);
        cmds[3] = (disp[1] & 0xf0) | (disp[3] >> 4);
        cmds[4] = (disp[2] & 0x0f) | (disp[0] << 4);
        cmds[5] = (disp[3] & 0x0f) | (disp[1] << 4);
-       i2c_transfer7(I2C1, 0x70/2, (byte *) cmds, sizeof(cmds), NULL, 0);
 
+       debug_puts("I2C transfer\n");
+       i2c_transfer7(I2C1, 0x70/2, (byte *) cmds, sizeof(cmds), NULL, 0);
        debug_puts("I2C done\n");
 }
 
+static void display_init(void)
+{
+       debug_puts("I2C init\n");
+       i2c_peripheral_disable(I2C1);
+        i2c_set_speed(I2C1, i2c_speed_sm_100k, rcc_apb1_frequency / 1000000);
+        i2c_peripheral_enable(I2C1);
+
+       disp[0] = 0x7f;
+       disp[1] = 0x12;
+       disp[2] = 0xbc;
+       disp[3] = 0xb6;
+       display_update();
+}
+
 static void display_test(void)
 {
        static byte mode;
 
+       disp[0] ^= 0x01;
+       display_update();
+
+#if 0
        byte cmds[] = { 0x00, mode ? 0x77 : 0x77 };
        i2c_transfer7(I2C1, 0x70/2, (byte *) cmds, sizeof(cmds), NULL, 0);
+#endif
+
+#if 0
+       byte disp[] = { 0xff, 0xff, mode ? 0xff : 0x00, mode ? 0xff : 0xff };
+       byte cmds[] = { 0x00, 0x77, 0, 0, 0, 0 };
+       cmds[2] = (disp[0] & 0xf0) | (disp[2] >> 4);
+       cmds[3] = (disp[1] & 0xf0) | (disp[3] >> 4);
+       cmds[4] = (disp[2] & 0x0f) | (disp[0] << 4);
+       cmds[5] = (disp[3] & 0x0f) | (disp[1] << 4);
+       i2c_transfer7(I2C1, 0x70/2, (byte *) cmds, sizeof(cmds), NULL, 0);
+#endif
 
        mode = !mode;
 }
@@ -354,7 +377,7 @@ int main(void)
        u32 last_blink = 0;
 
        for (;;) {
-               if (ms_ticks - last_blink >= 100) {
+               if (ms_ticks - last_blink >= 500) {
                        debug_led_toggle();
                        last_blink = ms_ticks;
                        display_test();