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Changelog.md

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Changelog

05-Nov-2010 - DavidAlfa Rewrite

Global Changes:

  • Deleted oops orphan file "temp.c"
  • Check setup.h for more hints.
  • Added a global define "Soft_SPI" that will disable hardware SPI and bitbang the data by software, useful when the display simply doesn't work and you want to trace the problem.
  • Tidy everything so STM32CUBEMX doesn't destroy all the code after each code generation.

Core/Src/main.c:

  • Clear up the main, moving lots of init and variables stuff to their respective functions.
  • Added CheckReset function to enable resetting defaults
  • All the ADC init stuff moved to MX_ADC_Init
  • ADC set to single channel, as the STM072 has only one ADC.
  • Set ADC sampling to 13 cycles, more than double needed to fully charge the ADC pin. It was set to 239 cycles in * PTDreamer code, no sense.
  • PWM timer set to 50Hz (48MHz / 480 divider / 2000 PWM period)
  • The 2000PWM period is also changed in iron.c for power calculation.
  • Program timer set to 1mS, and takes some definitions from the timings in setup.h.
  • Added SPI transfer complete callback for the dma.
  • The DMA transfers blocks of 128bytes (an oled row), and automatically sends the next row command. After 8 rows are * sent, the DMA disables.
  • Every call to update_display triggers the DMA again.
  • Added WAKE pin to interrupt-on-pin-change callback, so it clears the current iron timeout as long as the handle * moves, preventing sleep from activating. Also exits sleep or standby modes.
  • Removed most iron code from callback to the iron handler.

Core/Src/iron.c:

  • Moved a ton of stranded variables into a single, ordered struct.
  • Changed some vars for better understanding, deleted and added few more for better functionality.
  • Fixed sleep and standby behaviors.
  • Take Current_temp store interval from setup.h, with the option of no saving (prevents flash degrading).
  • Moved all the iron-related init stuff to IronInit.

Core/Src/settings.c:

  • Restoresettings also copies PID values to CurrentPID Struct.
  • Set Default contrast to max.

Drivers/generalIO/adc_global.c:

  • Moved main.c ADC Start to a new function ADC_Start_DMA.
  • Moved main.c ADC Cal to a new function ADC_Cal.
  • Created RollingTypeDef typedef, every function using an ADC channel should create its own.
  • (Ex. Irontemp, VInput, Vref, ColdJunctionTemp, each has one defined)
  • Added var "init" to clear buffer on init.
  • Added RollingUpdate function to make the average of the ADC buffer and the rolling buffer itself if any.
  • By default the rolling buffer size is set to 1(No rolling buffer average), as it will conflict with no iron * detection.
  • Created ADC_to_mV function. Calcs not using floats for better performance, while extreme precision it's not needed * at all in this application.

Drivers/generalIO/tempsensors.c:

  • Set iron min temp to 100ºC, max to 480ºC
  • Coldjunction changed name to readColdJunctionSensorTemp_C_x10,
  • as now it's returning ºC_x_10 instead milli_ºC.
  • We overflowed the int over 65ºC, while underflowed on negative readings.
  • No need that precision anyway.
  • All functions that read coldjunction now divide /10 instead /1000,
  • Changed algorithm to a table-based one, with values within -20°C to 125°C
  • Error is about 0.16ºC while much faster, skipping floats.
  • Changed return to int for signed temperature return.
  • The other functions also take in count the sign.

Drivers/generalIO/voltagesensors.c:

  • GetSupplyVoltage changed getSupplyVoltage_v_x10, it returns V_x10 now.
  • Corrected final calculation taking in count the resistor divider constant.
  • Added getReferenceVoltage_mv_x10

Drivers/graphics/ugui.c:

  • Moved UG_GUI data here, changed to UG_GUI "gui" to "user_gui" and declared extern on ugui.h

Drivers/graphics/ssd1306.c:

  • All the variables related to the OLED buffer, SPI and DMA work flow are declared here.
  • Changed everything to work also in Soft_SPI mode.
  • Added simple GPIO defs for CS, RES, DC signals like Set_CS, Clear_CS, etc.

Drivers/graphics/gui/debug_screen.c:

  • Added value titles, better ordering.
  • Moved debug_screen2 to a separate file

Drivers/graphics/gui/debug_screen2.c:

  • Added value titles, better ordering.

Drivers/graphics/gui/gui.c:

  • guiInit: Moved all the gui init stuff here.
  • Now requires a passing of the PWM timer used.
  • Added a Free-RAM-like function for debugging purposes, commented by default.
  • This was due "oled_AddScreen" allocation a lot of RAM inadvertently, causing Hard Faults while the compiler said * 35% RAM usage.
  • Each widget takes about 100bytes of RAM, so if a screen has 10 widgets (titles, values, buttons), sum up! A screen * could take 3KB easily!
  • So I had to tweak a bit the screens, unifying text widgets into a single one and such things.

Drivers/graphics/gui/main_screen.c:

  • Set NoIronADC detection value to 4000. That's about 650ºC.
  • Added a nicer thermometer (Personal liking). The old is still there, commented out.
  • Reordered Iron modes, so now when rotating, it goes Standby->Sleep->Set->Boost.
  • SetPoint widget unselected on boot, I found it annoying having to unselect it every time to move to other widget.
  • Added update_readings and Last_xxx_variables, so we don't update the readings on every screen update.
  • We can refresh the screen very fast, making the gui responsive, while the readings update rate is human readable.
  • Added Vsupply widget.
  • Removed decimals from Ambient temperature widget to save some screen space for the Vsupply widget.
  • Moved all the informative widgets (ambient temp, iron power, Vsupply) to the upper parts of the screen, while the * adjustable widgets are now on the bottom.
  • Enabled NO IRON widget. When No iron condition occurs, all the adjustable widgets are disabled until the condition * dissapears.
  • Tweaked iron temp position.
  • All the values are now right-justified so the values are always next to their labels. Added the "justify" option in * widget typedef
  • Now: 100C, 99C, 1C.
  • Before: 100C, 99 C, 1C

Drivers/graphics/gui/oled.c:

  • oled_draw: Added wait to DMA transfer, if we draw while transmitting the screen will artifact.
  • We could just return without drawing, and draw at next drawing call.

Drivers/graphics/gui/settings_screen.c:

  • Changed a lot of things.
  • Defined max / min values to remove data glitches/overflows/underflows.
  • Changed SAVE/EXIT buttons to SAVE/BACK and increased size.
  • SAVE/EXIT returns to Settings menu instead main screen.
  • Power/contrast have big representation.

Drivers/graphics/gui/screen.c:

  • Splash Screen: New big full splash screen BETA logo.

Drivers/graphics/gui/widgets.c:

  • Added displayWidget.justify option in typedef.
  • Changed default_widgetUpdate to use this.
  • Changed insertDot to add a 0 if there's nothing before the '.'
  • Changed default_widgetProcessInput to make checks on the value before adding or resting to prevent over/underflow of the int.