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changed SS,RESET,DC to use weak pull-up

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JP
2014-04-22 22:32:08 +10:00
parent fb8b9c4a43
commit 9ee0b95cf8
3 changed files with 44 additions and 21 deletions
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46
MicroView.cpp
View File

@@ -1,5 +1,5 @@
#include <avr/pgmspace.h>
#include <SPI.h>
//#include <SPI.h>
#include <MicroView.h>
// This fixed ugly GCC warning "only initialized variables can be placed into program memory area"
@@ -95,19 +95,19 @@ void MicroView::begin() {
// Setting up SPI pins
pinMode(MOSI, OUTPUT);
pinMode(SCK, OUTPUT);
pinMode(DC, OUTPUT);
//pinMode(DC, OUTPUT);
pinMode(RESET, OUTPUT);
pinMode(SS, OUTPUT);
pinMode(SS, INPUT);
digitalWrite(SS, HIGH);
sckport = portOutputRegister(digitalPinToPort(SCK));
sckpinmask = digitalPinToBitMask(SCK);
mosiport = portOutputRegister(digitalPinToPort(MOSI));
mosipinmask = digitalPinToBitMask(MOSI);
ssport = portOutputRegister(digitalPinToPort(SS));
sspinmask = digitalPinToBitMask(SS);
dcport = portOutputRegister(digitalPinToPort(DC));
dcpinmask = digitalPinToBitMask(DC);
ssport = portOutputRegister(digitalPinToPort(SS));
sspinmask = digitalPinToBitMask(SS);
ssreg = portModeRegister(digitalPinToPort(SS));
dcport = portOutputRegister(digitalPinToPort(DC));
dcpinmask = digitalPinToBitMask(DC);
dcreg = portModeRegister(digitalPinToPort(DC));
digitalWrite(RESET, HIGH);
// VDD (3.3V) goes high at start, lets just chill for 5 ms
@@ -122,7 +122,8 @@ void MicroView::begin() {
// wait 10ms
delay(10);
// bring out of reset
digitalWrite(RESET, HIGH);
pinMode(RESET,INPUT_PULLUP);
//digitalWrite(RESET, HIGH);
// Init sequence for 64x48 OLED module
command(DISPLAYOFF); // 0xAE
@@ -166,20 +167,33 @@ void MicroView::begin() {
void MicroView::command(uint8_t c) {
// Hardware SPI
*ssport |= sspinmask; // SS HIGH
*dcport &= ~dcpinmask; // DC LOW
*ssport &= ~sspinmask; // SS LOW
*dcreg |= dcpinmask; // Set DC pin to OUTPUT
*dcport &= ~dcpinmask; // DC pin LOW
*ssreg |= sspinmask; // Set SS pin to OUTPUT
*ssport &= ~sspinmask; // SS LOW
MVSPI.transfer(c);
*ssport |= sspinmask; // SS HIGH
*ssreg &= ~sspinmask; // Set SS pin to INPUT
*dcreg &= ~dcpinmask; // Set DC to INPUT to avoid high voltage over driving the OLED logic
}
void MicroView::data(uint8_t c) {
// Hardware SPI
*ssport |= sspinmask; // SS HIGH
*dcport |= dcpinmask; // DC HIGH
*ssreg |= sspinmask; // Set SS pin to OUTPUT
*ssport &= ~sspinmask; // SS LOW
MVSPI.transfer(c);
*ssport |= sspinmask; // SS HIGH
*ssreg &= ~sspinmask; // Set SS pin to INPUT
*dcreg &= ~dcpinmask; // Set DC to INPUT to avoid high voltage over driving the OLED logic
}
void MicroView::setPageAddress(uint8_t add) {

6
MicroView.h
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@@ -9,7 +9,8 @@
#define DC 8
#define RESET 12
// SS, SCK, MOSI already defined by original SPI.h
// SS, SCK, MOSI already defined by original pins_arduino.h
//#define CS 10
//#define SCK 13
//#define MOSI 11
@@ -158,7 +159,8 @@ public:
private:
//uint8_t cs;
volatile uint8_t *mosiport, *sckport, *ssport, *dcport; // use volatile because these are fixed location port address
//volatile uint8_t *mosiport, *sckport;
volatile uint8_t *ssport, *dcport, *ssreg, *dcreg; // use volatile because these are fixed location port address
uint8_t mosipinmask, sckpinmask, sspinmask, dcpinmask;
uint8_t foreColor,drawMode,fontWidth, fontHeight, fontType, fontStartChar, fontTotalChar, cursorX, cursorY;
uint16_t fontMapWidth;

13
README.md
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@@ -12,9 +12,13 @@ Arduino library for MicroView.
## Installation
1. Extract / Check out to Arduino's libraries folder.
2. Start Arduino IDE.
3. MicroView example is located at, File--->Example--->MicroView--->MicroViewDemo
1. Change directory to Arduino's main directory
2. cd libraries
3. mkdir MicroView
4. cd MicroView
5. git clone git@github.com:geekammo/microview.git .
6. Start Arduino IDE.
7. MicroView example is located at, File--->Example--->MicroView--->MicroViewDemo
### Example 1 - Hello World!
<pre><code>
@@ -87,6 +91,9 @@ void loop() {
</code></pre>
## History
**v1.10b: 22th April 2014 by JP Liew**
* changed SS, RESET, DC pins to use weak internal pull-up resistors
**v1.09b: 17th April 2014 by JP Liew**
* changed verticalFlip() to flipVertical() and horizontalFlip() to flipHorizontal() for consistency
* added debug messages for doCmd()