* am335x uart boot
@ 2020-10-12 8:39 Matwey V. Kornilov
2020-10-17 11:14 ` Matwey V. Kornilov
0 siblings, 1 reply; 2+ messages in thread
From: Matwey V. Kornilov @ 2020-10-12 8:39 UTC (permalink / raw)
To: u-boot
Hello,
I am trying to provide u-boot via uart to am335x bootrom (I use
BeagleBone Black board). Has anyone succeeded on it?
The CPU technical reference says that I have to use X-Modem 1K to load
the firmware. I am trying to reach this with screen and sx command.
In the serial console I see transmission invitation from the hardware
side: 'C'.
When I use sx --1k -X to transmit the binary there are no data accepted.
When I use sx -X (with 128 byte frame) the transmission is running until
hardware sends "Cancel" command in the middle.
I've also tried minicom terminal. It behaves like X-Modem 128 byte
transmission with no success.
^ permalink raw reply [flat|nested] 2+ messages in thread
* am335x uart boot
2020-10-12 8:39 am335x uart boot Matwey V. Kornilov
@ 2020-10-17 11:14 ` Matwey V. Kornilov
0 siblings, 0 replies; 2+ messages in thread
From: Matwey V. Kornilov @ 2020-10-17 11:14 UTC (permalink / raw)
To: u-boot
12.10.2020 11:39, Matwey V. Kornilov ?????:
> Hello,
>
> I am trying to provide u-boot via uart to am335x bootrom (I use
> BeagleBone Black board). Has anyone succeeded on it?
>
> The CPU technical reference says that I have to use X-Modem 1K to load
> the firmware. I am trying to reach this with screen and sx command.
>
> In the serial console I see transmission invitation from the hardware
> side: 'C'.
> When I use sx --1k -X to transmit the binary there are no data accepted.
> When I use sx -X (with 128 byte frame) the transmission is running until
> hardware sends "Cancel" command in the middle.
>
> I've also tried minicom terminal. It behaves like X-Modem 128 byte
> transmission with no success.
>
>
Now I believe this was due to transmission errors. I've taken another
RS232 converter and now everything boots both with sx -X and sx --1k -X
^ permalink raw reply [flat|nested] 2+ messages in thread
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