corrected bug in oled

Author: Doug Coffland

src/avr/Makefile

@@ -1,6 +1,6 @@
 # Makefile for the project Bulidbotics firmware
 PROJECT  = bbctrl-avr-firmware
-MCU      = atxmega256a3u
+MCU      = atxmega192a3u
 CLOCK    = 32000000
 
 # SRC

src/avr/src/config.h

@@ -142,7 +142,7 @@ enum {
 #define STEP_TIMER_POLL          ((uint16_t)(STEP_TIMER_FREQ * 0.001)) // 1ms
 #define STEP_TIMER_ISR           TCC0_OVF_vect
 #define STEP_LOW_LEVEL_ISR       ADCB_CH0_vect
-#define STEP_PULSE_WIDTH         (F_CPU * 0.000002) // 2uS w/ clk/1
+#define STEP_PULSE_WIDTH         (F_CPU * 0.000002) // 2uS w/ clk/1 .. modified to 10uS by doug
 #define SEGMENT_MS               4
 #define SEGMENT_TIME             (SEGMENT_MS / 60000.0) // mins
 

src/boot/Makefile

@@ -1,6 +1,6 @@
 # Makefile for the project Bulidbotics bootloader
 PROJECT         = bbctrl-avr-boot
-MCU             = atxmega256a3u
+MCU             = atxmega192a3u
 CLOCK           = 32000000
 
 TARGET  = $(PROJECT).elf

src/py/bbctrl/LCD.py

@@ -28,8 +28,8 @@
 import lcd
 import atexit
 
-from .oled import *
 from .LCDPage import *
+from .oled import *
 
 __all__ = ['LCD']
 
@@ -52,18 +52,18 @@ def __init__(self, ctrl):
         self.pages = []
         self.current_page = 0
         self.screen = self.new_screen()
+
+        try:
+          self.oled = OLED(self.ctrl)
+        except:
+          pass
+        self.wrote_to_oled = False
         self.set_message('Loading...')
 
         self._redraw(False)
         if not ctrl.args.demo: atexit.register(self.goodbye)
 
-        self.oled = OLED(ctrl)
-        try:
-          self.oled
-        except:
-          self.log.info("oled not present")
-        self.wrote_to_oled = False
-        
+
     def set_message(self, msg):
         try:
             self.load_page(LCDPage(self, msg))

src/py/bbctrl/oled.py

@@ -39,12 +39,10 @@ def __init__(self,ctrl):
     self.log = ctrl.log.get('OLED')
     self.device = 0
     try:
-      serial = i2c(port=1, address = 0x3C)
       self.device = ssd1306(i2c(port=1, address=0x3c), width = 128, height=64, rotate=0)
       self.device.contrast(1)
-      self.log.info("oled initialization complete")
     except:
-      self.log.info("oled not found")
+      pass
 
   def write(self,message="hello",col=0,row=0):
     with canvas(self.device,dither=True) as draw: