Embedded Artists
Example using the support package for LPC4088 DisplayModule
Dependencies: DMBasicGUI DMSupport
Example using a lot of the features in the software package for the LPC4088 Display Module.
This project can be selected as a template when creating a new project based on the LPC4088 Display Module.
Information
This project works on the 4.3" display modules.
Some of the apps works on the 5" display modules. The ImageViewer and Slideshow app will show the images distorted as it does not take the resolution into consideration.
Information
The USB Status app is disabled. The Image viewer looks for images in the root of SD cards, USB memory sticks or the file system on the QSPI flash. The Slideshow app expects to find a slideshow script in /mci/elec14/ea_logo.txt.
This is what it looks like on the 4.3" display:
Diff: main.cpp
- Revision:
- 1:15ea03d72dd7
- Parent:
- 0:dfad71908d59
- Child:
- 2:070e9c054796
diff -r dfad71908d59 -r 15ea03d72dd7 main.cpp
--- a/main.cpp Tue Dec 02 15:23:10 2014 +0000
+++ b/main.cpp Wed Dec 03 16:18:34 2014 +0000
@@ -9,6 +9,8 @@
#include "HTTPServer.h"
#include "mbed_rpc.h"
#include "USBHostMSD.h"
+#include "USBHostMouse.h"
+#include "USBHostKeyboard.h"
#include "DMBoard.h"
#include "Graphics.h"
@@ -33,6 +35,7 @@
*****************************************************************************/
EthernetInterface eth;
+Mutex usbInitGuard;
/******************************************************************************
* Global variables
@@ -157,7 +160,7 @@
RtosLog* log = DMBoard::instance().logger();
log->printf("%sTesting to read from USB\n", prefix);
- FILE * fp = fopen("/usb/test1.txt", "r");
+ FILE * fp = fopen("/usb/message.txt", "r");
if (fp != NULL) {
uint8_t* buff = (uint8_t*)malloc(1024+1);
@@ -225,8 +228,10 @@
#define MSD_TASK_PREFIX "[MSD] "
void msdTask(void const* args)
-{
- USBHostMSD msd("usb");
+{
+ usbInitGuard.lock();
+ USBHostMSD* msd = new USBHostMSD("usb");
+ usbInitGuard.unlock();
USBHost* host = USBHost::getHostInst();
RtosLog* log = DMBoard::instance().logger();
@@ -237,19 +242,16 @@
log->printf(MSD_TASK_PREFIX"Attempting to connect...\n");
// try to connect a MSD device
- while(!msd.connect()) {
-// log->printf(MSD_TASK_PREFIX"Failed to connect, waiting 5s and trying again!\n");
-// Thread::wait(5000);
- log->printf(MSD_TASK_PREFIX"Failed to connect, press button to try again!\n");
- while(!DMBoard::instance().buttonPressed()) {
- Thread::wait(20);
+ bool connected = false;
+ do {
+ usbInitGuard.lock();
+ connected = msd->connect();
+ usbInitGuard.unlock();
+ if (!connected) {
+ //log->printf(MSD_TASK_PREFIX"Failed to connect, waiting and trying again!\n");
+ Thread::wait(500);
}
- Thread::wait(40);
- while(DMBoard::instance().buttonPressed()) {
- Thread::wait(20);
- }
- log->printf(MSD_TASK_PREFIX"Attempting to connect...\n");
- }
+ } while(!connected);
log->printf(MSD_TASK_PREFIX"Connected!\n");
@@ -262,7 +264,7 @@
Thread::wait(500);
// if device disconnected, try to connect again
- if (!msd.connected())
+ if (!msd->connected())
break;
}
log->printf(MSD_TASK_PREFIX"Disconnected\n");
@@ -299,6 +301,116 @@
HTTPServerStart(80);
}
+static uint8_t mouse_button, mouse_x, mouse_y, mouse_z;
+void mouseEvent(uint8_t buttons, int8_t x, int8_t y, int8_t z)
+{
+ mouse_button = buttons;
+ mouse_x = x;
+ mouse_y = y;
+ mouse_z = z;
+}
+
+#define MOUSE_TASK_PREFIX "[MOUSE] "
+
+void mouseTask(void const* args)
+{
+ usbInitGuard.lock();
+ USBHostMouse* mouse = new USBHostMouse();
+ usbInitGuard.unlock();
+ RtosLog* log = DMBoard::instance().logger();
+
+ log->printf(MOUSE_TASK_PREFIX"mouseTask started\n");
+
+ while(1) {
+
+ log->printf(MOUSE_TASK_PREFIX"Attempting to connect...\n");
+
+ // try to connect a mouse
+ bool connected = false;
+ do {
+ usbInitGuard.lock();
+ connected = mouse->connect();
+ usbInitGuard.unlock();
+ if (!connected) {
+ //log->printf(MOUSE_TASK_PREFIX"Failed to connect, waiting and trying again!\n");
+ Thread::wait(500);
+ }
+ } while(!connected);
+
+ log->printf(MOUSE_TASK_PREFIX"Connected!\n");
+ mouse->attachEvent(mouseEvent);
+
+ while(mouse->connected()) {
+ log->printf(MOUSE_TASK_PREFIX"Buttons: 0x%02x, X %3d, Y %3d, Z %3d\n", mouse_button, mouse_x, mouse_y, mouse_z);
+ Thread::wait(500);
+ }
+
+ log->printf(MOUSE_TASK_PREFIX"Disconnected\n");
+ }
+}
+
+#define CIRCBUFF_SIZE 256
+static uint8_t circbuff[CIRCBUFF_SIZE];
+static uint32_t circbuff_read = 0;
+static uint32_t circbuff_write = 0;
+void keyEvent(uint8_t key)
+{
+ circbuff[circbuff_write%CIRCBUFF_SIZE] = key;
+ circbuff_write++;
+}
+
+#define KEY_TASK_PREFIX "[KEY] "
+
+void keyTask(void const* args)
+{
+ usbInitGuard.lock();
+ USBHostKeyboard* keyboard = new USBHostKeyboard();
+ usbInitGuard.unlock();
+
+ RtosLog* log = DMBoard::instance().logger();
+ uint8_t buff[10+1] = {0};
+ int pos;
+
+ log->printf(KEY_TASK_PREFIX"keyTask started\n");
+
+ while(1) {
+
+ log->printf(KEY_TASK_PREFIX"Attempting to connect...\n");
+
+ // try to connect a keyboard
+ bool connected = false;
+ do {
+ usbInitGuard.lock();
+ connected = keyboard->connect();
+ usbInitGuard.unlock();
+ if (!connected) {
+ //log->printf(KEY_TASK_PREFIX"Failed to connect, waiting and trying again!\n");
+ Thread::wait(1000);
+ }
+ } while(!connected);
+
+ log->printf(KEY_TASK_PREFIX"Connected!\n");
+ keyboard->attach(keyEvent);
+
+ while(keyboard->connected()) {
+ for (pos = 0; pos < 10; pos++) {
+ if (circbuff_read < circbuff_write) {
+ buff[pos++] = circbuff[circbuff_read%CIRCBUFF_SIZE];
+ circbuff_read++;
+ } else {
+ break;
+ }
+ }
+ if (pos > 0) {
+ log->printf(KEY_TASK_PREFIX"%s\n", buff);
+ }
+ Thread::wait(20);
+ }
+
+ log->printf(KEY_TASK_PREFIX"Disconnected\n");
+ }
+}
+
/******************************************************************************
* Main function
*****************************************************************************/
@@ -315,9 +427,9 @@
log->printf("\n\n---\nMulti-threaded demo\nBuilt: " __DATE__ " at " __TIME__ "\n\n");
- log->printf("Press button to start...\r\n");
- while(!board->buttonPressed());
- while(board->buttonPressed());
+ //log->printf("Press button to start...\r\n");
+ //while(!board->buttonPressed());
+ //while(board->buttonPressed());
Thread tAlive(aliveTask);
#if defined(DM_BOARD_USE_DISPLAY)
@@ -325,6 +437,8 @@
#endif
Thread tMemstick(msdTask, NULL, osPriorityNormal, 8192);
Thread tNetwork(netTask, NULL, osPriorityNormal, 8192);
+ Thread tMouse(mouseTask);
+ Thread tKeyboard(keyTask);
while(1) { wait(5); }
}