Error while erasing KL720 .I need help with setup
I am trying to erase KL720 but I am getting the error mentioned below
$ python flash_programmer.py -e
send error: expected NAK, CRC, or CAN; got b'\x00'
send error: expected NAK, CRC, or CAN; got b'\x00'
send error: expected NAK, CRC, or CAN; got b'\r'
send error: expected NAK, CRC, or CAN; got b'\n'
send error: expected NAK, CRC, or CAN; got b'B'
send error: expected NAK, CRC, or CAN; got b'O'
send error: expected NAK, CRC, or CAN; got b'O'
send error: expected NAK, CRC, or CAN; got b'T'
send error: expected NAK, CRC, or CAN; got b' '
send error: expected NAK, CRC, or CAN; got b'M'
send error: expected NAK, CRC, or CAN; got b'O'
send error: expected NAK, CRC, or CAN; got b'D'
send error: expected NAK, CRC, or CAN; got b'E'
send error: expected NAK, CRC, or CAN; got b':'
send error: expected NAK, CRC, or CAN; got b' '
send error: expected NAK, CRC, or CAN; got b'S'
send error: error_count reached 16, aborting.
Device init successfully
Please press reset button!!
b'\x00\x00'
b'BOOT MODE: SPI-NAND'
Please press reset button!!
b'Boot from Block 0: Done.'
Please press reset button!!
Please press reset button!!
b'SPL Boot Start'
b'SPL v1.0.0-0'
b'>> Start running KL720 companion mode ...'
xmodem_send 4 start
xmodem_send 4 done
xmodem_send bin file start
xmodem_sending ...
xmodem_send bin file FAIL!!!! Please reset the target and start over!!!!
xmodem_send bin file result = False
Can someone tell me how to fix it .I am following this document -> http://doc.kneron.com/docs/#720_1.3.0/getting_start_720/
Please tell me how to flash and erase kl720 without getting any errors
Thanks
William Jacob
Comments
Hi William
When execute flash_programmer.py . You need set KL720 boot mode to "00 : UART".
BR
Pow
Can you please list all the button configuration please
Hi William
00: for uart flash_programmer purpose
01: SPI NOR boot, this EVB don't have NOR flash.
10: SPI_NAND boot. After program, switch to 10 for normal boot.
11: USB boot , Currently unavailable
Update ...
11: USB boot : use kl720_usb_dfw.exe to update fw_scpu.bin and fw_ncpu.bin
more info KL720_SDK_v1.3.0\beethoven_sw\firmware\utils\usb_minion\app\readme.txt.txt