Added SPI burst mode to spi 8 bit.
Dependents: Bicycl_Computer_NUCLEO-F411RE Bicycl_Computer_NUCLEO-L476RG
Fork of UniGraphic by
Added SPI burst mode to this graphics driver. If whoever wants this rolled in to repository let me know. I replaced _spi.write(); with fastWrite(); and clearRX();
SPI8.cpp
// need to re-create SPI firmware to access SPI handle static SPI_HandleTypeDef SpiHandle; void SPI8::fastWrite(int data) { SpiHandle.Instance = SPI1; // Check if data is transmitted while ((SpiHandle.Instance->SR & SPI_SR_TXE) == 0); SpiHandle.Instance->DR = data; } void SPI8::clearRX( void ) { SpiHandle.Instance = SPI1; //Check if the RX buffer is busy //While busy, keep checking while (SpiHandle.Instance->SR & SPI_SR_BSY){ // Check RX buffer readable while ((SpiHandle.Instance->SR & SPI_SR_RXNE) == 0); int dummy = SpiHandle.Instance->DR; } }
Graphics/TextDisplay.cpp@36:0ced7cf0ec8c, 2017-08-04 (annotated)
- Committer:
- trevieze
- Date:
- Fri Aug 04 19:47:21 2017 +0000
- Revision:
- 36:0ced7cf0ec8c
- Parent:
- 0:75ec1b3cde17
Added Gimp Graphic Display Routine for Compass
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
Geremia | 0:75ec1b3cde17 | 1 | /* mbed TextDisplay Display Library Base Class |
Geremia | 0:75ec1b3cde17 | 2 | * Copyright (c) 2007-2009 sford |
Geremia | 0:75ec1b3cde17 | 3 | * Released under the MIT License: http://mbed.org/license/mit |
Geremia | 0:75ec1b3cde17 | 4 | */ |
Geremia | 0:75ec1b3cde17 | 5 | |
Geremia | 0:75ec1b3cde17 | 6 | #include "TextDisplay.h" |
Geremia | 0:75ec1b3cde17 | 7 | |
Geremia | 0:75ec1b3cde17 | 8 | TextDisplay::TextDisplay(const char *name) : Stream(name){ |
Geremia | 0:75ec1b3cde17 | 9 | _row = 0; |
Geremia | 0:75ec1b3cde17 | 10 | _column = 0; |
Geremia | 0:75ec1b3cde17 | 11 | if (name == NULL) { |
Geremia | 0:75ec1b3cde17 | 12 | _path = NULL; |
Geremia | 0:75ec1b3cde17 | 13 | } else { |
Geremia | 0:75ec1b3cde17 | 14 | _path = new char[strlen(name) + 2]; |
Geremia | 0:75ec1b3cde17 | 15 | sprintf(_path, "/%s", name); |
Geremia | 0:75ec1b3cde17 | 16 | } |
Geremia | 0:75ec1b3cde17 | 17 | } |
Geremia | 0:75ec1b3cde17 | 18 | |
Geremia | 0:75ec1b3cde17 | 19 | int TextDisplay::_putc(int value) { |
Geremia | 0:75ec1b3cde17 | 20 | if(value == '\n') { |
Geremia | 0:75ec1b3cde17 | 21 | _column = 0; |
Geremia | 0:75ec1b3cde17 | 22 | _row++; |
Geremia | 0:75ec1b3cde17 | 23 | if(_row >= rows()) { |
Geremia | 0:75ec1b3cde17 | 24 | _row = 0; |
Geremia | 0:75ec1b3cde17 | 25 | } |
Geremia | 0:75ec1b3cde17 | 26 | } else { |
Geremia | 0:75ec1b3cde17 | 27 | character(_column, _row, value); |
Geremia | 0:75ec1b3cde17 | 28 | _column++; |
Geremia | 0:75ec1b3cde17 | 29 | if(_column >= columns()) { |
Geremia | 0:75ec1b3cde17 | 30 | _column = 0; |
Geremia | 0:75ec1b3cde17 | 31 | _row++; |
Geremia | 0:75ec1b3cde17 | 32 | if(_row >= rows()) { |
Geremia | 0:75ec1b3cde17 | 33 | _row = 0; |
Geremia | 0:75ec1b3cde17 | 34 | } |
Geremia | 0:75ec1b3cde17 | 35 | } |
Geremia | 0:75ec1b3cde17 | 36 | } |
Geremia | 0:75ec1b3cde17 | 37 | return value; |
Geremia | 0:75ec1b3cde17 | 38 | } |
Geremia | 0:75ec1b3cde17 | 39 | |
Geremia | 0:75ec1b3cde17 | 40 | // crude cls implementation, should generally be overwritten in derived class |
Geremia | 0:75ec1b3cde17 | 41 | void TextDisplay::cls() { |
Geremia | 0:75ec1b3cde17 | 42 | locate(0, 0); |
Geremia | 0:75ec1b3cde17 | 43 | for(int i=0; i<columns()*rows(); i++) { |
Geremia | 0:75ec1b3cde17 | 44 | putc(' '); |
Geremia | 0:75ec1b3cde17 | 45 | } |
Geremia | 0:75ec1b3cde17 | 46 | } |
Geremia | 0:75ec1b3cde17 | 47 | |
Geremia | 0:75ec1b3cde17 | 48 | void TextDisplay::locate(int column, int row) { |
Geremia | 0:75ec1b3cde17 | 49 | _column = column; |
Geremia | 0:75ec1b3cde17 | 50 | _row = row; |
Geremia | 0:75ec1b3cde17 | 51 | } |
Geremia | 0:75ec1b3cde17 | 52 | |
Geremia | 0:75ec1b3cde17 | 53 | int TextDisplay::_getc() { |
Geremia | 0:75ec1b3cde17 | 54 | return -1; |
Geremia | 0:75ec1b3cde17 | 55 | } |
Geremia | 0:75ec1b3cde17 | 56 | |
Geremia | 0:75ec1b3cde17 | 57 | void TextDisplay::foreground(uint16_t colour) { |
Geremia | 0:75ec1b3cde17 | 58 | _foreground = colour; |
Geremia | 0:75ec1b3cde17 | 59 | } |
Geremia | 0:75ec1b3cde17 | 60 | |
Geremia | 0:75ec1b3cde17 | 61 | void TextDisplay::background(uint16_t colour) { |
Geremia | 0:75ec1b3cde17 | 62 | _background = colour; |
Geremia | 0:75ec1b3cde17 | 63 | } |
Geremia | 0:75ec1b3cde17 | 64 | |
Geremia | 0:75ec1b3cde17 | 65 | bool TextDisplay::claim (FILE *stream) { |
Geremia | 0:75ec1b3cde17 | 66 | if ( _path == NULL) { |
Geremia | 0:75ec1b3cde17 | 67 | fprintf(stderr, "claim requires a name to be given in the instantioator of the TextDisplay instance!\r\n"); |
Geremia | 0:75ec1b3cde17 | 68 | return false; |
Geremia | 0:75ec1b3cde17 | 69 | } |
Geremia | 0:75ec1b3cde17 | 70 | if (freopen(_path, "w", stream) == NULL) { |
Geremia | 0:75ec1b3cde17 | 71 | // Failed, should not happen |
Geremia | 0:75ec1b3cde17 | 72 | return false; |
Geremia | 0:75ec1b3cde17 | 73 | } |
Geremia | 0:75ec1b3cde17 | 74 | // make sure we use line buffering |
Geremia | 0:75ec1b3cde17 | 75 | setvbuf(stdout, NULL, _IOLBF, columns()); |
Geremia | 0:75ec1b3cde17 | 76 | return true; |
Geremia | 0:75ec1b3cde17 | 77 | } |