topic Re: LPC1769 in Other NXP Products

LPC1769

syydmml — Thu, 30 Nov 2023 12:06:11 GMT

Neither j-link nor isp serial port can be used to burn lpc1769, and the circuit is normal. I changed the previous lpc1769 that can be burned to the circuit board, and it can be burned normally. I made 10 pieces of samples, and all the lpc769 above can not be burned normally.

Re: LPC1769

Pavel_Hernandez — Fri, 01 Dec 2023 00:21:49 GMT

Hello, my name is Pavel, and I will be supporting your case, could you tell me more about your setup, do you have the MCUXpresso? maybe you could try to do a mass erase.

Let me know if you need more help.

Best regards,
Pavel

Re: LPC1769

syydmml — Fri, 01 Dec 2023 02:58:07 GMT

These chips have been unable to connect successfully, does this mean that the chips are damaged? If not, is there any way to determine if the chip is damaged

Re: LPC1769

syydmml — Fri, 01 Dec 2023 03:32:27 GMT

Using isp serial port burning is also unable to connect successfully, and I found that the rx and tx pins are not voltage. I have a chip used before lpc1769 can be successfully connected, using isp and j-link can be

Re: LPC1769

Pavel_Hernandez — Mon, 04 Dec 2023 19:16:52 GMT

Hello, I suggest reviewing the next information the TCK must need a pull-down.

Design Considerations for Debug - NXP Community

Best regards,
Pavel