Changeset - e51b465ab1cd
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Ethan Zonca - 11 years ago 2014-08-19 20:37:55
ez@ethanzonca.com
Add logo rendering code
3 files changed with 62 insertions and 3 deletions:
main.c
7
3
ssd1306.c
54
ssd1306.h
1
0 comments (0 inline, 0 general)
main.c
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Show inline comments
 
#include "main.h"
 
#include "stm32l100c_discovery.h"
 
#include "ssd1306.h"
 
 
// USB includes
 
#include "hw_config.h"
 
#include "usb_lib.h"
 
#include "usb_desc.h"
 
#include "usb_pwr.h"
 
 
#define LED_POWER GPIOB,GPIO_Pin_9
 
#define LED_STAT  GPIOA,GPIO_Pin_15
 
 
#define MAX_CS GPIOB,GPIO_Pin_12
 
 
// TODO: Grab buttonpresses with interrupts
 
#define SW_BTN  GPIOB, GPIO_Pin_3
 
#define SW_UP   GPIOB, GPIO_Pin_7
 
#define SW_DOWN GPIOB, GPIO_Pin_6
 
#define SW_LEFT GPIOB, GPIO_Pin_5
 
#define SW_RIGHT GPIOB, GPIO_Pin_4
 
 
// USB Supporting Vars
 
extern __IO uint8_t Receive_Buffer[64];
 
extern __IO  uint32_t Receive_length ;
 
extern __IO  uint32_t length ;
 
uint8_t Send_Buffer[64];
 
uint32_t packet_sent=1;
 
uint32_t packet_receive=1;
 
 
 
 
 
static __IO uint32_t TimingDelay;
 
 
// Move to header file
 
void init_gpio();
 
void init_spi();
 
void process();
 
void machine();
 
 
int main(void)
 
{
 
 
    // Init clocks
 
    SystemInit();
 
 
    init_gpio();
 
 
    // Init USB
 
    //Set_USBClock();
 
    //USB_Interrupts_Config();
 
    //USB_Init();
 
 
    GPIO_SetBits(LED_POWER);
 
 
    RCC_ClocksTypeDef RCC_Clocks;
 
 
    // SysTick end of count event each 1ms
 
    RCC_GetClocksFreq(&RCC_Clocks);
 
    SysTick_Config(RCC_Clocks.HCLK_Frequency / 1000);
 
 
    GPIO_ResetBits(LED_STAT);
 
    Delay(100);
 
    GPIO_SetBits(LED_POWER);
 
    Delay(500);
 
    GPIO_ResetBits(LED_POWER);
 
 
    init_spi();
 
 
    ssd1306_Init();
 
    ssd1306_block_write();
 
    ssd1306_DrawString("Hello World!", 0, 10);
 
    ssd1306_DrawString("therm 0.1", 0, 40);
 
    ssd1306_DrawString("Status: Idle", 2, 40);
 
  //  ssd1306_block_write();
 
    ssd1306_test();
 
 
    uint8_t toggle = 0;
 
    while(1)
 
   {
 
        //ssd1306_block_write();
 
 
        // Process sensor inputs [TODO: 5hz?]
 
        process();
 
 
        // Run state machine [TODO: 50hz?]
 
        machine();
 
        // probably just passed the actual port
 
 
        // TODO: Grab buttonpresses with interrupts
 
        uint8_t sw_btn = GPIO_ReadInputDataBit(SW_BTN);
 
        uint8_t sw_up = GPIO_ReadInputDataBit(SW_UP);
 
        uint8_t sw_down = GPIO_ReadInputDataBit(SW_DOWN);
 
        uint8_t sw_left = GPIO_ReadInputDataBit(SW_LEFT);
 
        uint8_t sw_right = GPIO_ReadInputDataBit(SW_RIGHT);
 
 
        if(!sw_btn) {
 
            GPIO_ToggleBits(LED_STAT);
 
            if(!toggle) {
 
                ssd1306_DrawString("I freaking work!", 2, 10);
 
                ssd1306_DrawString("________________", 3, 32);
 
                toggle = ! toggle;
 
            }
 
            else  {
 
                ssd1306_block_write();
 
                ssd1306_DrawString("----------------", 3, 32);
 
                toggle = ! toggle;
 
            }
 
        }
 
 
        GPIO_SetBits(LED_POWER);
 
        Delay(50);
 
        GPIO_ResetBits(LED_POWER);
 
        Delay(50);
 
    }
 
}
 
 
int32_t temp = 0;
 
int32_t setpoint = 0;
 
int32_t p = 1;
 
int32_t i = 1;
 
int32_t d = 1;
 
 
// Process things
 
void process()
 
{
 
    // Read MAX temp sensor
 
    GPIO_ResetBits(MAX_CS);
 
 
    // Assert CS
 
    // This may not clock at all... might need to send 16 bits first
 
    uint8_t retval = 0;//SPI_I2S_ReceiveData(SPI2);
 
 
    // Deassert CS
 
    GPIO_SetBits(MAX_CS);
 
 
    if((!retval || (temp & 0x2) != 0))
 
        return; // Comms error - this is happening right now
 
 
    if((temp & 0x4)!= 0)
 
        return; // Open thermocouple
 
 
 
    temp = (temp & 0x7FF8) >> 5;
 
 
 
    // TODO: Add calibration offset (linear)
 
 
 
    // Perform PID calculations
 
 
    // Write output to SSR
 
}
 
 
 
 
enum state {
 
    STATE_IDLE = 0,
 
    STATE_SETP,
 
    STATE_SETI,
 
    STATE_SETD,
 
 
    STATE_PREHEAT_BREW,
 
    STATE_MAINTAIN_BREW,
 
    STATE_PREHEAT_STEAM,
 
    STATE_MAINTAIN_STEAM,
 
};
 
 
 
uint8_t state = STATE_IDLE;
 
 
// State machine
 
void machine()
 
{
 
 
    switch(state)
 
    {
 
        // Idle state
 
        case STATE_IDLE:
 
        {
 
            // Write text to OLED
 
            // [ therm :: idle ]
 
 
            // Button handler
 
            if(GPIO_ReadInputDataBit(SW_BTN)) {
 
                state = STATE_SETP;
 
            }
 
 
            // Event Handler
 
            // N/A
 
 
        } break;
 
 
        case STATE_SETP:
 
        {
 
            // Write text to OLED
 
            // [ therm :: set p ]
 
            // [ p = 12         ]
 
 
            // Button handler
 
            if(GPIO_ReadInputDataBit(SW_BTN)) {
 
                state = STATE_IDLE;
ssd1306.c
➞
Show inline comments
 
@@ -542,130 +542,184 @@ const char fontData[240][5] =
 
    {0x02,0x01,0x51,0x09,0x06},         //   ( 31)  ? - 0x003F Question Mark
 
    {0x32,0x49,0x79,0x41,0x3E},         //   ( 32)  @ - 0x0040 Commercial At
 
    {0x7E,0x11,0x11,0x11,0x7E},         //   ( 33)  A - 0x0041 Latin Capital Letter A
 
    {0x7F,0x49,0x49,0x49,0x36},         //   ( 34)  B - 0x0042 Latin Capital Letter B
 
    {0x3E,0x41,0x41,0x41,0x22},         //   ( 35)  C - 0x0043 Latin Capital Letter C
 
    {0x7F,0x41,0x41,0x22,0x1C},         //   ( 36)  D - 0x0044 Latin Capital Letter D
 
    {0x7F,0x49,0x49,0x49,0x41},         //   ( 37)  E - 0x0045 Latin Capital Letter E
 
    {0x7F,0x09,0x09,0x09,0x01},         //   ( 38)  F - 0x0046 Latin Capital Letter F
 
    {0x3E,0x41,0x49,0x49,0x7A},         //   ( 39)  G - 0x0047 Latin Capital Letter G
 
    {0x7F,0x08,0x08,0x08,0x7F},         //   ( 40)  H - 0x0048 Latin Capital Letter H
 
    {0x00,0x41,0x7F,0x41,0x00},         //   ( 41)  I - 0x0049 Latin Capital Letter I
 
    {0x20,0x40,0x41,0x3F,0x01},         //   ( 42)  J - 0x004A Latin Capital Letter J
 
    {0x7F,0x08,0x14,0x22,0x41},         //   ( 43)  K - 0x004B Latin Capital Letter K
 
    {0x7F,0x40,0x40,0x40,0x40},         //   ( 44)  L - 0x004C Latin Capital Letter L
 
    {0x7F,0x02,0x0C,0x02,0x7F},         //   ( 45)  M - 0x004D Latin Capital Letter M
 
    {0x7F,0x04,0x08,0x10,0x7F},         //   ( 46)  N - 0x004E Latin Capital Letter N
 
    {0x3E,0x41,0x41,0x41,0x3E},         //   ( 47)  O - 0x004F Latin Capital Letter O
 
    {0x7F,0x09,0x09,0x09,0x06},         //   ( 48)  P - 0x0050 Latin Capital Letter P
 
    {0x3E,0x41,0x51,0x21,0x5E},         //   ( 49)  Q - 0x0051 Latin Capital Letter Q
 
    {0x7F,0x09,0x19,0x29,0x46},         //   ( 50)  R - 0x0052 Latin Capital Letter R
 
    {0x46,0x49,0x49,0x49,0x31},         //   ( 51)  S - 0x0053 Latin Capital Letter S
 
    {0x01,0x01,0x7F,0x01,0x01},         //   ( 52)  T - 0x0054 Latin Capital Letter T
 
    {0x3F,0x40,0x40,0x40,0x3F},         //   ( 53)  U - 0x0055 Latin Capital Letter U
 
    {0x1F,0x20,0x40,0x20,0x1F},         //   ( 54)  V - 0x0056 Latin Capital Letter V
 
    {0x3F,0x40,0x38,0x40,0x3F},         //   ( 55)  W - 0x0057 Latin Capital Letter W
 
    {0x63,0x14,0x08,0x14,0x63},         //   ( 56)  X - 0x0058 Latin Capital Letter X
 
    {0x07,0x08,0x70,0x08,0x07},         //   ( 57)  Y - 0x0059 Latin Capital Letter Y
 
    {0x61,0x51,0x49,0x45,0x43},         //   ( 58)  Z - 0x005A Latin Capital Letter Z
 
    {0x00,0x7F,0x41,0x41,0x00},         //   ( 59)  [ - 0x005B Left Square Bracket
 
    {0x02,0x04,0x08,0x10,0x20},         //   ( 60)  \ - 0x005C Reverse Solidus
 
    {0x00,0x41,0x41,0x7F,0x00},         //   ( 61)  ] - 0x005D Right Square Bracket
 
    {0x04,0x02,0x01,0x02,0x04},         //   ( 62)  ^ - 0x005E Circumflex Accent
 
    {0x40,0x40,0x40,0x40,0x40},         //   ( 63)  _ - 0x005F Low Line
 
    {0x01,0x02,0x04,0x00,0x00},         //   ( 64)  ` - 0x0060 Grave Accent
 
    {0x20,0x54,0x54,0x54,0x78},         //   ( 65)  a - 0x0061 Latin Small Letter A
 
    {0x7F,0x48,0x44,0x44,0x38},         //   ( 66)  b - 0x0062 Latin Small Letter B
 
    {0x38,0x44,0x44,0x44,0x20},         //   ( 67)  c - 0x0063 Latin Small Letter C
 
    {0x38,0x44,0x44,0x48,0x7F},         //   ( 68)  d - 0x0064 Latin Small Letter D
 
    {0x38,0x54,0x54,0x54,0x18},         //   ( 69)  e - 0x0065 Latin Small Letter E
 
    {0x08,0x7E,0x09,0x01,0x02},         //   ( 70)  f - 0x0066 Latin Small Letter F
 
    {0x06,0x49,0x49,0x49,0x3F},         //   ( 71)  g - 0x0067 Latin Small Letter G
 
    {0x7F,0x08,0x04,0x04,0x78},         //   ( 72)  h - 0x0068 Latin Small Letter H
 
    {0x00,0x44,0x7D,0x40,0x00},         //   ( 73)  i - 0x0069 Latin Small Letter I
 
    {0x20,0x40,0x44,0x3D,0x00},         //   ( 74)  j - 0x006A Latin Small Letter J
 
    {0x7F,0x10,0x28,0x44,0x00},         //   ( 75)  k - 0x006B Latin Small Letter K
 
    {0x00,0x41,0x7F,0x40,0x00},         //   ( 76)  l - 0x006C Latin Small Letter L
 
    {0x7C,0x04,0x18,0x04,0x7C},         //   ( 77)  m - 0x006D Latin Small Letter M
 
    {0x7C,0x08,0x04,0x04,0x78},         //   ( 78)  n - 0x006E Latin Small Letter N
 
    {0x38,0x44,0x44,0x44,0x38},         //   ( 79)  o - 0x006F Latin Small Letter O
 
    {0x7C,0x14,0x14,0x14,0x08},         //   ( 80)  p - 0x0070 Latin Small Letter P
 
    {0x08,0x14,0x14,0x18,0x7C},         //   ( 81)  q - 0x0071 Latin Small Letter Q
 
    {0x7C,0x08,0x04,0x04,0x08},         //   ( 82)  r - 0x0072 Latin Small Letter R
 
    {0x48,0x54,0x54,0x54,0x20},         //   ( 83)  s - 0x0073 Latin Small Letter S
 
    {0x04,0x3F,0x44,0x40,0x20},         //   ( 84)  t - 0x0074 Latin Small Letter T
 
    {0x3C,0x40,0x40,0x20,0x7C},         //   ( 85)  u - 0x0075 Latin Small Letter U
 
    {0x1C,0x20,0x40,0x20,0x1C},         //   ( 86)  v - 0x0076 Latin Small Letter V
 
    {0x3C,0x40,0x30,0x40,0x3C},         //   ( 87)  w - 0x0077 Latin Small Letter W
 
    {0x44,0x28,0x10,0x28,0x44},         //   ( 88)  x - 0x0078 Latin Small Letter X
 
    {0x0C,0x50,0x50,0x50,0x3C},         //   ( 89)  y - 0x0079 Latin Small Letter Y
 
    {0x44,0x64,0x54,0x4C,0x44},         //   ( 90)  z - 0x007A Latin Small Letter Z
 
    {0x00,0x08,0x36,0x41,0x00},         //   ( 91)  { - 0x007B Left Curly Bracket
 
    {0x00,0x00,0x7F,0x00,0x00},         //   ( 92)  | - 0x007C Vertical Line
 
    {0x00,0x41,0x36,0x08,0x00},         //   ( 93)  } - 0x007D Right Curly Bracket
 
    {0x02,0x01,0x02,0x04,0x02},         //   ( 94)  ~ - 0x007E Tilde
 
    {0x08,0x14,0x2A,0x14,0x22},         //   ( 95) << - 0x00AB Left-Pointing Double Angle Quotation Mark
 
    {0x00,0x02,0x05,0x02,0x00},         //   ( 96)    - 0x00B0 Degree Sign
 
    {0x44,0x44,0x5F,0x44,0x44},         //   ( 97) +- - 0x00B1 Plus-Minus Sign
 
    {0x7E,0x20,0x20,0x10,0x3E},         //   ( 98)  u - 0x00B5 Micro Sign
 
    {0x22,0x14,0x2A,0x14,0x08},         //   ( 99) >> - 0x00BB Right-Pointing Double Angle Quotation Mark
 
    {0x30,0x48,0x45,0x40,0x20},         //   (100)  ? - 0x00BF Inverted Question Mark
 
    {0x22,0x14,0x08,0x14,0x22},         //   (101)  x - 0x00D7 Multiplcation Sign
 
    {0x08,0x08,0x2A,0x08,0x08},         //   (102)  + - 0x00F7 Division Sign
 
    {0x18,0x14,0x08,0x14,0x0C},         //   (103)    - 0x221E Infinity
 
    {0x44,0x4A,0x4A,0x51,0x51},         //   (104)  < - 0x2264 Less-Than or Equal to
 
    {0x51,0x51,0x4A,0x4A,0x44},         //   (105)  > - 0x2265 Greater-Than or Equal to
 
    {0x54,0x14,0x64,0x08,0x70},         //   (106)  .: - RF Symbol
 
    {0x70,0x7C,0x72,0x7C,0x70},         //   (107)  ^ - Lock symbol
 
    {0x70,0x5C,0x52,0x54,0x70},         //   (108)  / - Unlock symbol
 
    {0x0C,0x1E,0x3C,0x1E,0x0C},         //   (109)  <3 - Heart Symbol
 
    {0x18,0x22,0xFF,0x12,0x0C},         //   (110)  U - USB Symbol
 
};
 
 
 
void setStartPage(unsigned char d)
 
{
 
    WriteCommand(0xB0|d);       // Set Page Start Address for Page Addressing Mode
 
                                // Default => 0xB0 (0x00)
 
}
 
/* Below are functions used to configure the OLED */
 
void setStartColumn(unsigned char d)
 
{
 
    WriteCommand(0x00+d%16);    // Set Lower Column Start Address for Page Addressing Mode
 
    WriteCommand(0x10+d/16);    // Set Higher Column Start Address for Page Addressing Mode
 
                                // Default => 0x10
 
}
 
 
 
const uint8_t row[4][32] = {
 
 
 
{0x00,0x00,0x01,0x03,0x07,0x0F,0x1E,0x3C,0x3C,0x7C,0x7C,0x7C,0xFC,0xFF,0xFF,0xFC,0xFC,0xFC,0xFC,0xFF,0x7F,0x7F,0x7F,0x3C,0x3C,0x1C,0x0C,0x06,0x03,0x01,0x00,0x00},
 
 
{0x0F,0x7F,0xFF,0xFF,0xFF,0xFF,0x00,0x00,0x00,0x00,0x3F,0x3F,0x7F,0xFF,0xFF,0x00,0x00,0x00,0x00,0xFF,0xFF,0xFF,0xFF,0x00,0x00,0x00,0x00,0x00,0xFF,0xFF,0x7F,0x0F},
 
 
{0xF0,0xFE,0xFF,0xFF,0xFF,0xC7,0x00,0x00,0x00,0x00,0x87,0xC7,0xC7,0xFF,0xFF,0x00,0x00,0x00,0x00,0x87,0x87,0xC7,0xC3,0x03,0x07,0x07,0x0F,0x7F,0xFF,0xFF,0xFE,0xF0},
 
 
{0x00,0x00,0x80,0xC0,0xE0,0xF0,0xF8,0xFC,0xFC,0xFE,0xFE,0xFE,0xFF,0xFF,0xFF,0x1F,0x1F,0x1F,0x1F,0xFF,0xFE,0xFE,0xFE,0xFC,0xFC,0xF8,0xF0,0xE0,0xC0,0x80,0x00,0x00},
 
 
 
 
 
};
 
 
void ssd1306_test()
 
{
 
    uint8_t i = 0;
 
    setStartPage(3);
 
    setStartColumn(0);
 
    for(i = 0; i<32; i++)
 
    {
 
        WriteData(row[0][i]);
 
    }
 
 
    WriteData(0x00);
 
 
    setStartPage(2);
 
    setStartColumn(0);
 
    for(i = 0; i<32; i++)
 
    {
 
        WriteData(row[1][i]);
 
    }
 
    WriteData(0x00);
 
 
    setStartPage(1);
 
    setStartColumn(0);
 
    for(i = 0; i<32; i++)
 
    {
 
        WriteData(row[2][i]);
 
    }
 
    WriteData(0x00);
 
 
    setStartPage(0);
 
    setStartColumn(0);
 
    for(i = 0; i<32; i++)
 
    {
 
        WriteData(row[3][i]);
 
    }
 
    WriteData(0x00);
 
}
 
 
/* Print a single character from font.cpp */
 
void ssd1306_DrawChar(char ascii, unsigned char row, unsigned char xPos)
 
{
 
    char *srcPointer = 0;
 
    unsigned char i;
 
 
    srcPointer = &fontData[(ascii-32)][0];
 
 
    setStartPage(row);
 
    setStartColumn(xPos);
 
 
    for(i=0;i<5;i++)
 
    {
 
        WriteData(*srcPointer);
 
        srcPointer++;
 
    }
 
    WriteData(0x00);
 
}
 
 
void ssd1306_DrawString(const char *dataPtr, unsigned char row, unsigned char xPos)
 
{
 
    char *srcPointer;
 
 
    srcPointer = (char*)dataPtr;
 
    ssd1306_DrawChar(' ',row,xPos); // NBSP must be written first before the string start
 
 
    while(1)
 
    {
 
        ssd1306_DrawChar(*srcPointer,row,xPos);
 
        srcPointer++;
 
        xPos+=6;
 
        if(*srcPointer == 0) break;
 
    }
 
}
ssd1306.h
➞
Show inline comments
 
#ifndef   ssd1306_H
 
#define   ssd1306_H
 
 
typedef unsigned long Pos_t;
 
typedef unsigned long Size_t;
 
typedef unsigned long Color_t;
 
 
typedef   unsigned long  (*pfnDrawBlock_t)(
 
  Pos_t x,
 
  Pos_t y,
 
  Pos_t cx,
 
  Pos_t cy,
 
  const unsigned char* data);
 
typedef   unsigned long  (*pfnDrawPoint_t)(Pos_t x, Pos_t y, Color_t color);
 
 
 
typedef unsigned long(*pfnFontDrawChar)(pfnDrawBlock_t DrawBlock,Pos_t x, Pos_t y, unsigned int ch);
 
 
 
 
 
typedef  struct _DeviceProp
 
{
 
  pfnDrawBlock_t    pfnDrawBlok;
 
  pfnDrawPoint_t    pfnDrawPoint;
 
  Size_t            xPixel;
 
  Size_t            yPixel;
 
}DeviceProp;
 
 
typedef  struct  _Device
 
{
 
  const DeviceProp*   pDevProp;
 
  pfnFontDrawChar     pfnFont;
 
  Pos_t               curX;
 
  Pos_t               curY;
 
}Device;
 
 
 
void  ssd1306_Init(void);
 
void  StartPageTransfer(void);
 
extern  const DeviceProp  ssd1306_Prop;
 
unsigned long ssd1306_DrawBlock(Pos_t x, Pos_t y, Pos_t cx, Pos_t cy, const unsigned char* data);
 
unsigned long ssd1306_IsOn(void);
 
unsigned long ssd1306_TurnOff(void);
 
unsigned long ssd1306_TurnOn(void);
 
unsigned char ssd1306_SetContrast(unsigned char contrast);
 
unsigned char ssd1306_GetContrast();
 
unsigned char* ssd1306_GetBuffer();
 
unsigned long ssd1306_DrawPoint(Pos_t x, Pos_t y, Color_t color);
 
void ssd1306_block_write(void);
 
void ssd1306_DrawChar(char ascii, unsigned char row, unsigned char xPos);
 
void ssd1306_DrawString(const char *dataPtr, unsigned char row, unsigned char xPos);
 
void ssd1306_test();
 
 
#endif
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