mirror of https://github.com/rusefi/dfu_java.git
39 lines
1.8 KiB
Java
39 lines
1.8 KiB
Java
package com.rusefi.dfu;
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import com.rusefi.dfu.commands.DfuSeCommandErasePage;
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import com.rusefi.dfu.commands.DfuSeCommandSetAddress;
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import com.rusefi.dfu.usb4java.USBDfuConnection;
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import java.nio.ByteBuffer;
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public class DfuLogic {
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public static final short ST_VENDOR = 0x0483;
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public static final short ST_DFU_PRODUCT = (short) 0xdf11;
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public static final byte USB_CLASS_APP_SPECIFIC = (byte) 0xfe;
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public static final byte DFU_SUBCLASS = 0x01;
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public static final byte USB_DT_DFU = 0x21;
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static void uploadImage(USBDfuConnection device, HexImage image) {
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// todo: smarter erase handling!
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DfuSeCommandErasePage.execute(device, 0x08000000);
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DfuSeCommandErasePage.execute(device, 0x08004000);
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DfuSeCommandErasePage.execute(device, 0x08008000);
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DfuSeCommandErasePage.execute(device, 0x0800C000);
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DfuSeCommandErasePage.execute(device, 0x08010000);
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DfuSeCommandErasePage.execute(device, 0x08020000);
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DfuSeCommandErasePage.execute(device, 0x08040000);
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for (int offset = 0; offset < image.getMaxOffset() - image.getRange().getBaseAddress(); offset += device.getTransferSize()) {
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DfuSeCommandSetAddress.execute(device, device.getFlashRange().getBaseAddress() + offset);
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DfuConnection.waitStatus(device);
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ByteBuffer buffer = ByteBuffer.allocateDirect(device.getTransferSize());
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buffer.put(image.getImage(), offset, device.getTransferSize());
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device.sendData(DfuCommmand.DNLOAD, DfuSeCommand.W_DNLOAD, buffer);
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// AN3156 USB DFU protocol used in the STM32 bootloader
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// "The Write memory operation is effectively executed only when a DFU_GETSTATUS request is issued by the host. "
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DfuConnection.waitStatus(device);
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}
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}
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}
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