About C2000 program serial port upgrade

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About C2000 program serial port upgrade [Copy link]

Taking F28335 as an example, this article introduces how to perform online program upgrade via the SCI serial port.

Jumper, taking 28335 control card as an example.

You need to use a jumper to set the chip's boot mode to SCI-A boot (setting the boot mode means configuring the level of the boot pin corresponding to the GPIO port).

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Note: If you use a TI development board for this experiment, there will generally be a switch on the development board to control the boot pin. You can check the user's guide of the corresponding development board to find the switch position and set it. No jumper is required.

After setting the boot mode, connect the SCI pin to the PC (or host computer), as shown in the figure:

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Download C2prog from codeskin ( http://www.codeskin.com/c2prog-download ), install and open it, then use the HEX2000 that comes with CCS (C:\ti\ccs920\ccs\tools\compiler\ti-cgt-c2000_18.12.3.LTS\bin) to convert the .out file output by the program compilation into a hex file. A higher version of CCS can convert directly, as shown in the figure below:

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To burn:

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Solutions to possible problems:

Check the hardware to see if the SCI pins mentioned in the above figure are used

When burning through the serial port, you can also use the emulator + CCS to monitor the operation of the development board

Some RS-232 to RS-485 interface tools do not work well

Most importantly, serial port programming works through the bootloader inside the chip, so when the development board is connected to the serial port and has the correct jumper, use the serial port debugging assistant to send the following characters to the development board. The development board should have a return signal

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The 41AA08000000000000000000000000000000000000000000008000000000C011223344556677 sent above means
Write 11223344556677 at 0x0000c000.

For more details, please refer to the instructions in the bootROM documentation:

http://focus.ti.com/mcu/docs/litabsmultiplefilelist.tsp?sectionId=96&tabId=1502&literatureNumber=spru963a&docCategoryId=6&familyId=1414

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