1 files changed, 71 insertions, 1 deletions
diff --git a/src/debug.c b/src/debug.c
index 858195e..d7babda 100644
--- a/src/debug.c
+++ b/src/debug.c
@@ -1,10 +1,71 @@
 #include <avr/io.h>
 #include <stdio.h>
 #include <util/delay.h>
+#include "ssd1306_display_driver.h"
+#include "i2c.h"
 #include "debug.h"
+#include "br24t_eeprom_driver.h"
 
+//this is used elsewhere (only one file) besides debug but kind of gross, maybe move to a header or something
+#define SSD1306_ADDR      0x3c
+#define SSD1306_CMD_REG   0x00
+#define SSD1306_DATA_REG  0x40
 
+#define SCREEN_PAGE_CNT   SCREEN_RES_Y / 8 
 
+#define I2C_WRITE   0
+#define I2C_READ    1
+
+void scroll_test() {
+  //sets scroll area to whole screen
+  i2c_write_reg_multi(SSD1306_ADDR, SSD1306_CMD_REG, 3, (uint8_t[]){0xa3, 0x00, 0x20});
+  //set up scroll options
+  i2c_write_reg_multi(SSD1306_ADDR, SSD1306_CMD_REG, 6, (uint8_t[]){0x29, 0x00, 0x00, 0x00, 0x04, 0x00});
+  //actually activate scroll
+  i2c_write_reg_multi(SSD1306_ADDR, SSD1306_CMD_REG, 6, (uint8_t[]){0x2f});
+}
+
+void screen_lowlvl_testdraw() {
+  unsigned int on_pix;
+  unsigned int on_page;
+
+  printf("running screen time tests\r\n");
+  printf("generating test image...\r\n");
+  for(on_pix = 0; on_pix < sizeof(screen_buffer); on_pix++) 
+    screen_buffer[on_pix] = ((uint8_t)0xaa << (on_pix % 8));
+
+  printf("page mode, individual byte per i2c call...\r\n");
+  for(on_page = 0; on_page < SCREEN_PAGE_CNT; on_page++) {
+    i2c_write_reg(SSD1306_ADDR, SSD1306_CMD_REG, 0xb0 + on_page);
+    i2c_write_reg(SSD1306_ADDR, SSD1306_CMD_REG, 0x00);
+    i2c_write_reg(SSD1306_ADDR, SSD1306_CMD_REG, 0x10);
+    for(on_pix = 0; on_pix < SCREEN_RES_X; on_pix++)
+      i2c_write_reg(SSD1306_ADDR, SSD1306_DATA_REG, screen_buffer[(on_page * 8) + on_pix]);
+  }
+  printf("page mode, 1 page per i2c call...\r\n");
+  for(on_page = 0; on_page < SCREEN_PAGE_CNT; on_page++) {
+    i2c_write_reg(SSD1306_ADDR, SSD1306_CMD_REG, 0xb0 + on_page);
+    i2c_write_reg(SSD1306_ADDR, SSD1306_CMD_REG, 0x00);
+    i2c_write_reg(SSD1306_ADDR, SSD1306_CMD_REG, 0x10);
+    i2c_write_reg_multi(SSD1306_ADDR, SSD1306_DATA_REG, SCREEN_RES_X, &screen_buffer[on_page * SCREEN_RES_X]);
+  }
+  printf("screen test draw done!\n");
+}
+
+
+void uart_echo() {
+  char buff;
+  for(;;) {
+    fread(&buff, 1, 1, stdin);
+    fwrite(&buff, 1, 1, stdout);
+  }
+}
+
+void test_clock() {
+  printf("The time is %s, waiting 5 mintes...\r\n", "not implimented");
+  _delay_ms(300000);
+  printf("The time is now %s, hope your RTC clock works\r\n", "not implimented");
+}
 
 
 /*
@@ -27,5 +88,14 @@ void test_timer() {
   start = TCNT1;
   _delay_ms(1000);
   end = TCNT1;
-  printf("1 second is %u ticks\n",  end - start);
+  printf("1 second is %u ticks\r\n",  end - start);
+}
+
+void eeprom_testbyte() {
+  uint8_t data_in = 0xde;
+  uint8_t data_out = 0;
+  printf("writing 0x%x to eeprom...\r\n", data_in);
+  EEPROM_WRITEBYTE(0x0000, data_in);
+  data_out = EEPROM_READBYTE(0x0000);
+  printf("byte read from eeprom: 0x%x\r\n", data_out);
 }