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Forum Post: TMS320F280049: Serial Flash programming issues

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Part Number: TMS320F280049 I am using a serial flash programmer to program (using UART) a TMS320F280049 controller on a custom PCB board. But there seems to be an error while loading the kernel.There seems to be an error called "error with autobaud lock echoback". The error screenshot is attached here. I set the microcontroller in the SCI bootload mode. GPIO 32- set as high using a 10Kohm resistor to 3.3V. GPIO 24- set as low by grounding. A USB-to-UART TTL converter (Silabs CP2102) is used. GPIO 16 (SCIA_TX) connected to RX pin of the converter. The line is pulled up to 3.3V using a 10Kohm resistor. GPIO 17(SCIA_RX) connected to TX of the converter. The line is pulled up to 3.3V using a 10Kohm resistor I have used the serial flash programmer provided in C2000ware to flash the kernel "flashapi_ex2_sci_kernel" to the device. The program to be loaded is the example program provided as "led_ex1_blinky". The command used in the command prompt is: serial_flash_programmer.exe -d f28004x -k flashapi_ex2_sci_kernel.txt -a led_ex1_blinky.txt -b 2400 -p COM5 -v -w The error produced is shown in the attachment. I would really appreciate if you could help resolve the issue and flashing the controller.

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