![](/media/cache/profiles/2e72ed76b7b3b9ce2f15fce64178dfaf.jpg.50x50_q85.jpg)
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
Diff: main.cpp
- Revision:
- 0:3ecd25651727
- Child:
- 1:76ec0e6dfe81
diff -r 000000000000 -r 3ecd25651727 main.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/main.cpp Tue May 20 10:30:34 2014 +0000 @@ -0,0 +1,166 @@ +/********************************************************************************************** + Copyright (c) 2014 DisplayModule. All rights reserved. + + Redistribution and use of this source code, part of this source code or any compiled binary + based on this source code is permitted as long as the above copyright notice and following + disclaimer is retained. + + DISCLAIMER: + THIS SOFTWARE IS SUPPLIED "AS IS" WITHOUT ANY WARRANTIES AND SUPPORT. DISPLAYMODULE ASSUMES + NO RESPONSIBILITY OR LIABILITY FOR THE USE OF THE SOFTWARE. + ********************************************************************************************/ + +/****************************************************************************** + * Includes + *****************************************************************************/ + +#include "mbed.h" + +#include "DmTftHX8353C.h" +#include "DmTftS6D0164.h" +#include "DmTftIli9325.h" +#include "DmTftIli9341.h" +#include "DmTftSsd2119.h" +#include "DmTouch.h" + +#include "W25Q16BV.h" +#include "DmDrawBmpBase.h" +#include "SDFileSystem.h" + +/****************************************************************************** + * Typedefs and defines + *****************************************************************************/ + +#define log(...) printf(__VA_ARGS__) +//#define log(...) + +#define DM_PIN_SPI_MOSI D11 +#define DM_PIN_SPI_MISO D12 +#define DM_PIN_SPI_SCLK D13 + +#define DM_PIN_CS_TOUCH D4 +#define DM_PIN_CS_TFT D10 +#define DM_PIN_CS_SDCARD D8 +#define DM_PIN_CS_FLASH D6 + +/****************************************************************************** + * Local variables + *****************************************************************************/ + +//DmTftHX8353C tft; /* DM_TFT18_101 */ +//DmTftS6D0164 tft; /* DM_TFT22_102 */ +//DmTftIli9325 tft; /* DM_TFT28_103 and DM_TFT24_104 */ +DmTftIli9341 tft; /* DM_TFT28_105 */ +//DmTftSsd2119 tft; /* DM_TFT35_107 */ + +//DmTouch touch(DmTouch::DM_TFT28_103, false); /* For LPC4088 QuickStart Board */ +//DmTouch touch(DmTouch::DM_TFT28_103); +//DmTouch touch(DmTouch::DM_TFT24_104); +DmTouch touch(DmTouch::DM_TFT28_105); +//DmTouch touch(DmTouch::DM_TFT35_107); + +SDFileSystem sd(DM_PIN_SPI_MOSI, DM_PIN_SPI_MISO, DM_PIN_SPI_SCLK, DM_PIN_CS_SDCARD, "sd"); // mosi,miso,clk,cs +W25Q16BV flash(DM_PIN_SPI_MOSI, DM_PIN_SPI_MISO, DM_PIN_SPI_SCLK, DM_PIN_CS_FLASH); // mosi,miso,clk,cs + +DigitalInOut csTouch(DM_PIN_CS_TOUCH, PIN_OUTPUT, PullUp, 1); +DigitalInOut csDisplay(DM_PIN_CS_TFT, PIN_OUTPUT, PullUp, 1); +DigitalInOut csSDCard(DM_PIN_CS_SDCARD, PIN_OUTPUT, PullUp, 1); +DigitalInOut csFlash(DM_PIN_CS_FLASH, PIN_OUTPUT, PullUp, 1); + +/****************************************************************************** + * Global variables + *****************************************************************************/ + +/****************************************************************************** + * Local functions + *****************************************************************************/ + +static bool sdcardReader(uint32_t userData, uint8_t* data, int offset, int numBytes) { + FILE* fp = (FILE*)userData; + fseek(fp, offset, SEEK_SET); + fread(data, 1, numBytes, fp); + return true; +} + +static bool spiFlashReader(uint32_t userData, uint8_t* data, int offset, int numBytes) { + W25Q16BV* spiFlash = (W25Q16BV*)userData; + spiFlash->readStream(offset, (char*)data, numBytes); + return true; +} + +static void copyImageToSPIFlash(const char* fname) { + FILE* fp = fopen(fname, "r"); + int num, offset; + uint8_t buff[128]; + + do { + if (fp == NULL) { + log("Failed to open %s, so assuming SPI flash is correct\n", fname); + break; + } + + // simple comparison of first 64 bytes in file and SPI flash + // to avoid having to write to the flash on every boot + num = fread(buff, 1, 64, fp); + if (num == 64) { + flash.readStream(0, (char*)&buff[64], 64); + if (memcmp(buff, &buff[64], 64) == 0) { + log("SPI flash content propably correct, not replacing it\n"); + break; + } + } + + log("Found %s, erasing SPI flash\n", fname); + flash.chipErase(); + + log("Copying %s to SPI flash\n", fname); + offset = 0; + while ((num = fread(buff, 1, 128, fp)) > 0) { + flash.writeStream(offset, (char*)buff, num); + offset+=num; + } + log("Done. Wrote %d bytes to SPI flash\n", offset); + + } while(false); + + if (fp != NULL) { + fclose(fp); + } +} + +/****************************************************************************** + * Main + *****************************************************************************/ + +int main() { + //DmTftBase* tft = factory.display(); + DmDrawBmpBase bmp; + const char* fname = "/sd/logop565.bmp"; + + copyImageToSPIFlash(fname); + + log("init tft \r\n"); + tft.init(); + + while (true) { + log("Drawing from SD card (%s) ...\n", fname); + FILE *fp = fopen(fname, "r"); + if (fp != NULL) { + bmp.drawBitmap(tft, 0, 0, sdcardReader, (uint32_t)fp); + fclose(fp); + } else { + log("failed to open file\n"); + } + + wait_ms(3000); + tft.clearScreen(RED); + wait_ms(1000); + + log("Attempting to decode image from SPI flash...\n"); + bmp.drawBitmap(tft, 0, 0, spiFlashReader, (uint32_t)&flash); + + wait_ms(3000); + tft.clearScreen(GREEN); + wait_ms(1000); + } +}