Added simple string output.

Makefile

@@ -80,7 +80,7 @@ OPT = -O0 -ggdb
 else
 OPT = -O2
 endif
-OPT += -ffunction-sections -fdata-sections
+OPT += -ffunction-sections -fdata-sections -funsigned-char
 OPT += -fomit-frame-pointer -falign-functions=16
 OPT += -fno-strict-aliasing -ffast-math -msoft-float -mfloat-abi=soft
 

inc/display.h

@@ -20,5 +20,6 @@ void display_BlinkState(dis_en_t state);
 void display_LedState(dis_en_t state);
 void display_Fill(uint8_t pattern);
 void display_Char(const uint8_t symb, uint8_t column);
+void display_String(const char * string, uint8_t repeat);
 
 #endif /* _DISPLAY_H_ */

inc/i2c.h

@@ -16,8 +16,6 @@ typedef enum t_i2c_status {
 } i2c_status_t;
 
 /* Exported variabless */
-extern uint32_t I2C_tout; 
-
 /* Exported function prototypes */
 i2c_status_t user_i2c_read(uint8_t id, uint8_t reg_addr, uint8_t *data, uint16_t len);
 i2c_status_t user_i2c_write(uint8_t id, uint8_t reg_addr, uint8_t *data, uint16_t len);

src/display.c

@@ -6,7 +6,10 @@
 
 /* Private constants */
 #define MAX_COLUMN    (DISPLAY_COLUMNS - 1)
-#define FONT_WIDTH    8
+#define FONT_WIDTH    6
+#define STR_BUF_SYM   40
+#define STR_BUF_PAD   (DISPLAY_COLUMNS / FONT_WIDTH)
+#define STR_BUF_SIZE  ((STR_BUF_PAD + STR_BUF_SYM + STR_BUF_PAD) * FONT_WIDTH)
 
 /* private macros */
 /* Private variables */
@@ -40,7 +43,7 @@ void display_Init(void) {
 }
 
 /**
- * @brief Out ot display one symbol in specified column
+ * @brief Out to display one symbol from specified column
  * 
  * @param symb Symbol to display
  * @param column column from 0 to DISPLAY_COLUMNS-1
@@ -59,6 +62,39 @@ void display_Char(const uint8_t symb, const uint8_t column) {
   }
 }
 
+/**
+ * @brief Out string to display. Running string. Left shit.
+ * @param string String to display, null terminated.
+ * @param repeat Times to repeat.
+ */
+void display_String(const char * string, uint8_t repeat) {
+  if (repeat == 0) { return; }
+  if (string[0] == 0) { return; }
+
+  uint8_t str_buf[STR_BUF_SIZE] = {0};
+  int i = 0, j = DISPLAY_COLUMNS;
+  while ((string[i] != '\0') && (i < STR_BUF_SYM)) {
+    str_buf[j] = string[i];
+    i ++;
+    j ++;
+  }
+  
+  int k = 0;
+  while (repeat) {
+    for (k=0; k<j; k++) {
+      for (i=0; i<DISPLAY_COLUMNS; i++) {
+        display_Buffer[i] = str_buf[k+i];
+      }
+      display_WriteBuffer();
+      tdelay_ms(200);
+    }
+    tdelay_ms(500);
+
+    /* End of man loop */
+    repeat --;
+  }
+}
+
 /**
  * @brief Set HT1632C PWM Value
  * @param pwm value in 0-15
@@ -203,7 +239,7 @@ void display_WriteData(const uint8_t * data, uint8_t addr, uint8_t len) {
   while ((SPI1->SR & SPI_SR_BSY) != 0) { __NOP(); }
   HT1632C_CS_OFF;
 
-  // with dam
+  // with dma
   uint16_t a = 0x280 | addr;
 
   /* Wait for SPI */
@@ -303,7 +339,7 @@ void display_WriteBuffer(void) {
 void display_Fill(uint8_t pattern) {
   int i;
   for (i=0; i<DISPLAY_COLUMNS; i++) {
-    display_Buffer[i] = 0x0;
+    display_Buffer[i] = pattern;
   }
   display_WriteBuffer();
 }

src/main.c

@@ -44,12 +44,13 @@ int main(void)
   buzer_On();
   tdelay_ms(50);
   buzer_Off();
+  tdelay_ms(500);
 
   /* Real-Time clock */
   i2c_status = RTC_Init();
   if (i2c_status != I2C_Ret_OK) {
     buzer_On();
-    tdelay_ms(500);
+    tdelay_ms(1000);
     buzer_Off();
   }
   i2c_status = RTC_ReadTime(&Clock);
@@ -58,6 +59,14 @@ int main(void)
   }
 
   display_Init();
+  display_String("0123456789ABCDEF\0", 3);
+  bip_Bip();
+  tdelay_ms(675);
+  bip_Bip();
+  tdelay_ms(675);
+  bip_Bip();
+  tdelay_ms(5000);
+
   Show_MMSS();
 
   /* Infinite loop */