Linux/MSP430FR2311: About MSP430 Bootloader With Sitara Embedded Linux Host Programming issue

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Hi Sir

TI release source code and document and ask customer

to run in bbb with Debian

And it cause issue happened.  

Do you think it is TI’s issue or customer’s issue?

Have TI verified the source code and release document?

I did test this code with BBB. You need to see which part of the code is causing the segmentation fault. The version of the OS and other BBB setups can be causing this. Put some printfs and see where the segmentation fault happens.

Hi SIr 

thanks for your help

We found the issue as below by following your document

We only got one pack from MSP430 and it is 0x00.  by referring to the code , it should get packets x8 as below 

bool WritePassword(uint8_t* password, uint16_t passwordSize)
{
uint16_t checksum = 0;

if (passwordSize != PASSWORD_LENGTH)
{
#if DEBUG
printf("Password is incorrect size: 0x%x\n", passwordSize);
#endif
return false;
}
sendBuffer[0] = (uint8_t)(HEADER);
sendBuffer[1] = RX_PASSWORD_NL;
sendBuffer[2] = RX_PASSWORD_NH;
sendBuffer[3] = RX_PASSWORD;

memcpy(&sendBuffer[4], password, PASSWORD_LENGTH);

checksum = CalculateChecksum(&sendBuffer[3], (uint16_t)(PASSWORD_LENGTH + 1));
sendBuffer[PASSWORD_LENGTH + 4] = GetCKL(checksum);
sendBuffer[PASSWORD_LENGTH + 5] = GetCKH(checksum);

UART_SendByteArray(sendBuffer, PASSWORD_LENGTH + 6);
UART_ReadByteArray(receiveBuffer, 8);  -> only got 0x00 one packet. 

 

please advise

BR

Yimin

Hi SIr

after checking BBB by following your SOP, we found there is no uart message output from ttyO4

we use your sample code without modification. and measure UART's signal of BBB directly.
www.ti.com/.../slaa760.pdf

list information as below.
root@beaglebone:/MSP430/UART_BSL_MSP430FR# ls -l /dev/ttyO*
lrwxrwxrwx 1 root root 5 Mar 19 14:22 /dev/ttyO0 -> ttyS0
lrwxrwxrwx 1 root root 5 Mar 19 14:22 /dev/ttyO1 -> ttyS1
lrwxrwxrwx 1 root root 5 Mar 19 14:22 /dev/ttyO2 -> ttyS2
lrwxrwxrwx 1 root root 5 Mar 19 14:22 /dev/ttyO4 -> ttyS4

please advise

BR
Yimin

Hi SIr

Thanks. It fixed

I have no idea why TI used 3rd-party OS of BBB instead of using TI processorSDK to support SItara platform for MSP programming feature.

And then said TI doesn't support it. 

BR

Yimin