TMS320F28379D: SCI Bootloader test with LunchPadXL TMS320F28379D

Tobias Haerter

Part Number: TMS320F28379D
Other Parts Discussed in Thread: TMS320F28379S, C2000WARE

Hello
I’m a very Newbie on the C2000 Controllers. My task is now to develop a SCI bootloader for the TMS320F28379S. I have LunchpadXL with a TMS320F28379D to test.
Is is possible to test the example F2837xD_sci_flash_kernels_cpu01 with the LunchpadXL?
I know that I have ot add a define _LAUNCHXL_F28379D to get the correct PLL settings. But it is possible to use the integrate COM Port on Pins 42 and 43? Add only a new Pin mux option?

SCI_Pinmux_Option3(void)
{
//
// Configure GPIO42 as SCITXDA (Output pin)
// Configure GPIO43 as SCIRXDA (Input pin)
// Configure GPIO43 (SCIRXRA) as async pin
//

EALLOW;
GPIO_SetupPinOptions(42, GPIO_OUTPUT, GPIO_ASYNC);
GPIO_SetupPinMux(42,GPIO_MUX_CPU1,15);
GPIO_SetupPinOptions(43, GPIO_INPUT, GPIO_ASYNC); // GPIO_PUSHPULL
GPIO_SetupPinMux(43,GPIO_MUX_CPU1,15);
EDIS;
}

Thanks for your help
Tobias

over 6 years ago

0 Kevin Allen18 over 6 years ago

TI__Mastermind 45606 points

Hi Tobias,

I don't believe the F2837x LaunchPad has the correct signals to perform SCI Boot. I'll have someone else confirm this.

The required GPIOs listed below are not pinned out to the LaunchPad headers or COM port:

Best,

Kevin

0 Tobias Haerter over 6 years ago in reply to Kevin Allen18

Intellectual 660 points

Hello
After a half day work I have the same assumption, but could some one confirm that the SCI bootloader don't work at the LunchPadXL.
Regards Tobias

0 Christopher Chiarella over 6 years ago in reply to Tobias Haerter

TI__Mastermind 30255 points

Tobias

That is correct, SCI bootloader pins are not pinned out on the LaunchPadXL. You'll have to put a custom SCI bootloader in flash that uses different GPIOs. SCI bootloader source is in C2000Ware under libraries.

Best regards

Chris

0 Tobias Haerter over 6 years ago in reply to Christopher Chiarella

Intellectual 660 points

Hello

That means if I use the example F2837xD_sci_flash_kernels_cpu01 and change the the Pinmux of SCIA to use GPIO 44 and 45 which are connected to the serial port of the debug unit I could try to test the bootloader?

regards Tobias

0 Christopher Chiarella over 6 years ago in reply to Tobias Haerter

TI__Mastermind 30255 points

Tobias

That will enable communication with the kernel but still won't let you use the SCI bootloader in ROM.

Typical flow (that can't be achieved here): ROM SCI bootloader -> Flash Kernel (in RAM) -> App (in Flash)

To match that flow, you need to put the SCI bootloader (with modified GPIOs) in flash to then communicate with using serial flash programmer to load the flash kernel to RAM and then use the kernel to load the app to flash.

Best regards

Chris

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TMS320F28379D: SCI Bootloader test with LunchPadXL TMS320F28379D