topic Re: Using mxli with LPC1837 in LPC Microcontrollers

Using mxli with LPC1837

johnisaac — Mon, 19 Feb 2018 18:21:53 GMT

Trying to see if I can program a LPC1837 with mxli.

# ./mxli -n -d /dev/ttyS0 -b 115200 -c 12000000 -g
?\x0D\x0A\x0DLINE BREAK:\r
ERROR: pattern "Synchronized" not found, Fifo was ""
ERROR: No or invalid response

Any idea what I might be doing wrong?

#mxli‌

Re: Using mxli with LPC1837

johnisaac — Mon, 19 Feb 2018 22:18:56 GMT

I have some additional information that may be useful.

For some reason I am able to access the UART command handle using a standard terminal and commands (See Table 27 Section 5.7 LPC18xx ARM Cortex-M3 microcontroller User's Guide) so I know I'm talking the the ISP command handler. For some reason the "?" synchronization handshake is not working and hence this is why mxli doesn't work. Interestingly enough I'm having the same issue with lpc1isp. There is a discussion in 5.4.4.1 that discussed this synchronization step but it appears I don't need this to access the ISP command handler.

Re: Using mxli with LPC1837

johnisaac — Tue, 20 Feb 2018 15:30:21 GMT

I got it working. The problem was that I wasn't holding the ISP pin long enough on the reset.

Re: Using mxli with LPC1837

Carlos_Mendoza — Thu, 22 Feb 2018 15:56:00 GMT

Hi John,

It is good to hear you got it working.

Best Regards!
Carlos Mendoza
Technical Support Engineer