Display Module / Mbed 2 deprecated dm_sdcard

Shows how to use a display, the onboard SD Card and the onboard SPI Flash. Requires a display module with direct Arduino pinning

Dependencies:   DmTftLibrary SDFileSystem mbed

main.cpp@4:93ca338876e2, 2014-07-09 (annotated)

Committer:
displaymodule
Date:
Wed Jul 09 09:38:56 2014 +0000
Revision:
4:93ca338876e2
Parent:
3:e1e1053e286f
Child:
6:0f69891b105e
Updated library dependencies. Fixed warning. Fixed file position bug.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
displaymodule 0:3ecd25651727 1 /**********************************************************************************************
displaymodule 0:3ecd25651727 2 Copyright (c) 2014 DisplayModule. All rights reserved.
displaymodule 0:3ecd25651727 3
displaymodule 0:3ecd25651727 4 Redistribution and use of this source code, part of this source code or any compiled binary
displaymodule 0:3ecd25651727 5 based on this source code is permitted as long as the above copyright notice and following
displaymodule 0:3ecd25651727 6 disclaimer is retained.
displaymodule 0:3ecd25651727 7
displaymodule 0:3ecd25651727 8 DISCLAIMER:
displaymodule 0:3ecd25651727 9 THIS SOFTWARE IS SUPPLIED "AS IS" WITHOUT ANY WARRANTIES AND SUPPORT. DISPLAYMODULE ASSUMES
displaymodule 0:3ecd25651727 10 NO RESPONSIBILITY OR LIABILITY FOR THE USE OF THE SOFTWARE.
displaymodule 0:3ecd25651727 11 ********************************************************************************************/
displaymodule 0:3ecd25651727 12
displaymodule 0:3ecd25651727 13 /******************************************************************************
displaymodule 0:3ecd25651727 14 * Includes
displaymodule 0:3ecd25651727 15 *****************************************************************************/
displaymodule 0:3ecd25651727 16
displaymodule 0:3ecd25651727 17 #include "mbed.h"
displaymodule 0:3ecd25651727 18
displaymodule 0:3ecd25651727 19 #include "DmTftIli9341.h"
displaymodule 0:3ecd25651727 20 #include "DmTftSsd2119.h"
displaymodule 0:3ecd25651727 21 #include "DmTouch.h"
displaymodule 0:3ecd25651727 22
displaymodule 0:3ecd25651727 23 #include "W25Q16BV.h"
displaymodule 0:3ecd25651727 24 #include "DmDrawBmpBase.h"
displaymodule 0:3ecd25651727 25 #include "SDFileSystem.h"
displaymodule 0:3ecd25651727 26
displaymodule 0:3ecd25651727 27 /******************************************************************************
displaymodule 0:3ecd25651727 28 * Typedefs and defines
displaymodule 0:3ecd25651727 29 *****************************************************************************/
displaymodule 0:3ecd25651727 30
displaymodule 2:a77053c4f5cc 31 /* Note that there are restrictions on which platforms that can use printf
displaymodule 2:a77053c4f5cc 32 in combinations with the DmTftLibrary. Some platforms (e.g. LPC1549 LPCXpresso)
displaymodule 2:a77053c4f5cc 33 use the same pins for USBRX/USBTX and display control. Printing will
displaymodule 2:a77053c4f5cc 34 cause the display to not work. Read more about this on the display's notebook
displaymodule 2:a77053c4f5cc 35 page. */
displaymodule 3:e1e1053e286f 36 #define log(...) printf(__VA_ARGS__)
displaymodule 3:e1e1053e286f 37 //#define log(...)
displaymodule 0:3ecd25651727 38
displaymodule 0:3ecd25651727 39 #define DM_PIN_SPI_MOSI D11
displaymodule 0:3ecd25651727 40 #define DM_PIN_SPI_MISO D12
displaymodule 0:3ecd25651727 41 #define DM_PIN_SPI_SCLK D13
displaymodule 0:3ecd25651727 42
displaymodule 0:3ecd25651727 43 #define DM_PIN_CS_TOUCH D4
displaymodule 0:3ecd25651727 44 #define DM_PIN_CS_TFT D10
displaymodule 0:3ecd25651727 45 #define DM_PIN_CS_SDCARD D8
displaymodule 0:3ecd25651727 46 #define DM_PIN_CS_FLASH D6
displaymodule 0:3ecd25651727 47
displaymodule 0:3ecd25651727 48 /******************************************************************************
displaymodule 0:3ecd25651727 49 * Local variables
displaymodule 0:3ecd25651727 50 *****************************************************************************/
displaymodule 0:3ecd25651727 51
displaymodule 2:a77053c4f5cc 52 //DmTftIli9341 tft; /* DM_TFT28_105 */
displaymodule 2:a77053c4f5cc 53 DmTftSsd2119 tft; /* DM_TFT35_107 */
displaymodule 0:3ecd25651727 54
displaymodule 2:a77053c4f5cc 55 //DmTouch touch(DmTouch::DM_TFT28_105);
displaymodule 2:a77053c4f5cc 56 DmTouch touch(DmTouch::DM_TFT35_107);
displaymodule 0:3ecd25651727 57
displaymodule 0:3ecd25651727 58 SDFileSystem sd(DM_PIN_SPI_MOSI, DM_PIN_SPI_MISO, DM_PIN_SPI_SCLK, DM_PIN_CS_SDCARD, "sd"); // mosi,miso,clk,cs
displaymodule 0:3ecd25651727 59 W25Q16BV flash(DM_PIN_SPI_MOSI, DM_PIN_SPI_MISO, DM_PIN_SPI_SCLK, DM_PIN_CS_FLASH); // mosi,miso,clk,cs
displaymodule 0:3ecd25651727 60
displaymodule 0:3ecd25651727 61 DigitalInOut csTouch(DM_PIN_CS_TOUCH, PIN_OUTPUT, PullUp, 1);
displaymodule 0:3ecd25651727 62 DigitalInOut csDisplay(DM_PIN_CS_TFT, PIN_OUTPUT, PullUp, 1);
displaymodule 0:3ecd25651727 63 DigitalInOut csSDCard(DM_PIN_CS_SDCARD, PIN_OUTPUT, PullUp, 1);
displaymodule 0:3ecd25651727 64 DigitalInOut csFlash(DM_PIN_CS_FLASH, PIN_OUTPUT, PullUp, 1);
displaymodule 0:3ecd25651727 65
displaymodule 1:76ec0e6dfe81 66
displaymodule 0:3ecd25651727 67 /******************************************************************************
displaymodule 0:3ecd25651727 68 * Global variables
displaymodule 0:3ecd25651727 69 *****************************************************************************/
displaymodule 0:3ecd25651727 70
displaymodule 0:3ecd25651727 71 /******************************************************************************
displaymodule 0:3ecd25651727 72 * Local functions
displaymodule 0:3ecd25651727 73 *****************************************************************************/
displaymodule 0:3ecd25651727 74
displaymodule 0:3ecd25651727 75 static bool sdcardReader(uint32_t userData, uint8_t* data, int offset, int numBytes) {
displaymodule 0:3ecd25651727 76 FILE* fp = (FILE*)userData;
displaymodule 0:3ecd25651727 77 fseek(fp, offset, SEEK_SET);
displaymodule 0:3ecd25651727 78 fread(data, 1, numBytes, fp);
displaymodule 0:3ecd25651727 79 return true;
displaymodule 0:3ecd25651727 80 }
displaymodule 0:3ecd25651727 81
displaymodule 0:3ecd25651727 82 static bool spiFlashReader(uint32_t userData, uint8_t* data, int offset, int numBytes) {
displaymodule 0:3ecd25651727 83 W25Q16BV* spiFlash = (W25Q16BV*)userData;
displaymodule 0:3ecd25651727 84 spiFlash->readStream(offset, (char*)data, numBytes);
displaymodule 0:3ecd25651727 85 return true;
displaymodule 0:3ecd25651727 86 }
displaymodule 0:3ecd25651727 87
displaymodule 0:3ecd25651727 88 static void copyImageToSPIFlash(const char* fname) {
displaymodule 0:3ecd25651727 89 FILE* fp = fopen(fname, "r");
displaymodule 0:3ecd25651727 90 int num, offset;
displaymodule 0:3ecd25651727 91 uint8_t buff[128];
displaymodule 0:3ecd25651727 92
displaymodule 0:3ecd25651727 93 do {
displaymodule 0:3ecd25651727 94 if (fp == NULL) {
displaymodule 0:3ecd25651727 95 log("Failed to open %s, so assuming SPI flash is correct\n", fname);
displaymodule 0:3ecd25651727 96 break;
displaymodule 0:3ecd25651727 97 }
displaymodule 0:3ecd25651727 98
displaymodule 0:3ecd25651727 99 // simple comparison of first 64 bytes in file and SPI flash
displaymodule 0:3ecd25651727 100 // to avoid having to write to the flash on every boot
displaymodule 0:3ecd25651727 101 num = fread(buff, 1, 64, fp);
displaymodule 0:3ecd25651727 102 if (num == 64) {
displaymodule 0:3ecd25651727 103 flash.readStream(0, (char*)&buff[64], 64);
displaymodule 0:3ecd25651727 104 if (memcmp(buff, &buff[64], 64) == 0) {
displaymodule 0:3ecd25651727 105 log("SPI flash content propably correct, not replacing it\n");
displaymodule 0:3ecd25651727 106 break;
displaymodule 0:3ecd25651727 107 }
displaymodule 0:3ecd25651727 108 }
displaymodule 4:93ca338876e2 109 fseek(fp, 0, SEEK_SET);
displaymodule 0:3ecd25651727 110
displaymodule 0:3ecd25651727 111 log("Found %s, erasing SPI flash\n", fname);
displaymodule 0:3ecd25651727 112 flash.chipErase();
displaymodule 0:3ecd25651727 113
displaymodule 0:3ecd25651727 114 log("Copying %s to SPI flash\n", fname);
displaymodule 0:3ecd25651727 115 offset = 0;
displaymodule 0:3ecd25651727 116 while ((num = fread(buff, 1, 128, fp)) > 0) {
displaymodule 0:3ecd25651727 117 flash.writeStream(offset, (char*)buff, num);
displaymodule 0:3ecd25651727 118 offset+=num;
displaymodule 0:3ecd25651727 119 }
displaymodule 0:3ecd25651727 120 log("Done. Wrote %d bytes to SPI flash\n", offset);
displaymodule 0:3ecd25651727 121
displaymodule 0:3ecd25651727 122 } while(false);
displaymodule 0:3ecd25651727 123
displaymodule 0:3ecd25651727 124 if (fp != NULL) {
displaymodule 0:3ecd25651727 125 fclose(fp);
displaymodule 0:3ecd25651727 126 }
displaymodule 0:3ecd25651727 127 }
displaymodule 0:3ecd25651727 128
displaymodule 0:3ecd25651727 129 /******************************************************************************
displaymodule 0:3ecd25651727 130 * Main
displaymodule 0:3ecd25651727 131 *****************************************************************************/
displaymodule 0:3ecd25651727 132
displaymodule 0:3ecd25651727 133 int main() {
displaymodule 0:3ecd25651727 134 DmDrawBmpBase bmp;
displaymodule 0:3ecd25651727 135 const char* fname = "/sd/logop565.bmp";
displaymodule 0:3ecd25651727 136
displaymodule 0:3ecd25651727 137 copyImageToSPIFlash(fname);
displaymodule 0:3ecd25651727 138
displaymodule 0:3ecd25651727 139 log("init tft \r\n");
displaymodule 0:3ecd25651727 140 tft.init();
displaymodule 0:3ecd25651727 141
displaymodule 0:3ecd25651727 142 while (true) {
displaymodule 0:3ecd25651727 143 log("Drawing from SD card (%s) ...\n", fname);
displaymodule 0:3ecd25651727 144 FILE *fp = fopen(fname, "r");
displaymodule 0:3ecd25651727 145 if (fp != NULL) {
displaymodule 0:3ecd25651727 146 bmp.drawBitmap(tft, 0, 0, sdcardReader, (uint32_t)fp);
displaymodule 0:3ecd25651727 147 fclose(fp);
displaymodule 0:3ecd25651727 148 } else {
displaymodule 0:3ecd25651727 149 log("failed to open file\n");
displaymodule 1:76ec0e6dfe81 150 log("Skipping SDCard reading as it is unsupported\n");
displaymodule 1:76ec0e6dfe81 151 tft.drawStringCentered(0, 0, tft.width(), tft.height(), "SD Card Unsupported!");
displaymodule 0:3ecd25651727 152 }
displaymodule 0:3ecd25651727 153
displaymodule 0:3ecd25651727 154 wait_ms(3000);
displaymodule 0:3ecd25651727 155 tft.clearScreen(RED);
displaymodule 0:3ecd25651727 156 wait_ms(1000);
displaymodule 0:3ecd25651727 157
displaymodule 0:3ecd25651727 158 log("Attempting to decode image from SPI flash...\n");
displaymodule 1:76ec0e6dfe81 159 if (!bmp.drawBitmap(tft, 0, 0, spiFlashReader, (uint32_t)&flash)) {
displaymodule 1:76ec0e6dfe81 160 log("Skipping SPI Flash reading as it is unsupported\n");
displaymodule 1:76ec0e6dfe81 161 tft.drawStringCentered(0, 0, tft.width(), tft.height(), "SPI Flash Unsupported!");
displaymodule 1:76ec0e6dfe81 162 }
displaymodule 0:3ecd25651727 163
displaymodule 0:3ecd25651727 164 wait_ms(3000);
displaymodule 0:3ecd25651727 165 tft.clearScreen(GREEN);
displaymodule 0:3ecd25651727 166 wait_ms(1000);
displaymodule 0:3ecd25651727 167 }
displaymodule 0:3ecd25651727 168 }