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LPCXpresso824 MAX won't autobaud for ISP

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LPCXpresso824 MAX won't autobaud for ISP

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‎09-10-2024 01:42 PM
1,045 次查看
scruffmeister
Contributor II

I have an LPCXpresso824 MAX board. I know that it is working as I can run the SDK examples for the UART and of course "blinky".

I am trying to put it into ISP mode and load a file using Flashmagic. With blinky loaded (so I know if user code is running) I hold down SW2 and reset the board before releasing SW2.

This should put the board into ISP mode and I can see that my LED no longer blinks suggesting user code is not running.

I then try to synchronize using Flashmagic (9600 baud) but it times out as "failed to autobaud". I have tried:

1. Both settings for JP3 (board is RevC)

2. Restarting into ISP mode while holding SW2 both with "reset SW3" and by physically disconnecting/reconnecting the USB cable. 

I must be missing something, what am I doing wrong?

 

 

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‎09-11-2024 12:39 AM
1,026 次查看
Alice_Yang
NXP TechSupport
NXP TechSupport

Hello @scruffmeister 

Please make sure connect the correct UART pins. Use PIO0_0 as RXD and PIO0_4 as TXD.

Alice_Yang_0-1726040258438.pngAlice_Yang_0-1726040258438.png

Not the J3 on board.

 

BR

Alice

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‎09-11-2024 12:39 AM
1,027 次查看
Alice_Yang
NXP TechSupport
NXP TechSupport

Hello @scruffmeister 

Please make sure connect the correct UART pins. Use PIO0_0 as RXD and PIO0_4 as TXD.

Alice_Yang_0-1726040258438.pngAlice_Yang_0-1726040258438.png

Not the J3 on board.

 

BR

Alice

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%3CLINGO-SUB%20id%3D%22lingo-sub-1951443%22%20slang%3D%22en-US%22%20mode%3D%22CREATE%22%3ELPCXpresso824%20MAX%20%E6%97%A0%E6%B3%95%E8%87%AA%E5%8A%A8%E6%B3%A2%E7%89%B9%E7%8E%87%E8%BF%9B%E8%A1%8C%20ISP%3C%2FLINGO-SUB%3E%3CLINGO-BODY%20id%3D%22lingo-body-1951443%22%20slang%3D%22en-US%22%20mode%3D%22CREATE%22%3E%3CP%3E%E6%88%91%E6%9C%89%E4%B8%80%E5%9D%97LPCXpresso824%20MAX%E6%9D%BF%E3%80%82%E6%88%91%E7%9F%A5%E9%81%93%E5%AE%83%E6%AD%A3%E5%9C%A8%E5%B7%A5%E4%BD%9C%EF%BC%8C%E5%9B%A0%E4%B8%BA%E6%88%91%E5%8F%AF%E4%BB%A5%E8%BF%90%E8%A1%8C%20UART%20%E7%9A%84%20SDK%20%E7%A4%BA%E4%BE%8B%EF%BC%8C%E5%BD%93%E7%84%B6%E8%BF%98%E6%9C%89%E2%80%9Cblinky%E2%80%9D%E3%80%82%3C%2FP%3E%3CP%3E%E6%88%91%E6%AD%A3%E5%9C%A8%E5%B0%9D%E8%AF%95%E5%B0%86%E5%85%B6%E7%BD%AE%E4%BA%8E%20ISP%20%E6%A8%A1%E5%BC%8F%E5%B9%B6%E4%BD%BF%E7%94%A8%3CA%20href%3D%22https%3A%2F%2Fcommunity.nxp.com%2Ft5%2FLPC-Microcontrollers-Knowledge%2FFlash-Magic-Programing-LPC%2Fta-p%2F1152763%22%20target%3D%22_self%22%3EFlashmagic%3C%2FA%3E%E5%8A%A0%E8%BD%BD%E6%96%87%E4%BB%B6%E3%80%82%E5%9C%A8%E5%8A%A0%E8%BD%BD%20blinky%20%E7%9A%84%E6%83%85%E5%86%B5%E4%B8%8B%EF%BC%88%E5%9B%A0%E6%AD%A4%E6%88%91%E7%9F%A5%E9%81%93%E7%94%A8%E6%88%B7%E4%BB%A3%E7%A0%81%E6%98%AF%E5%90%A6%E6%AD%A3%E5%9C%A8%E8%BF%90%E8%A1%8C%EF%BC%89%EF%BC%8C%E6%88%91%E6%8C%89%E4%BD%8F%20SW2%20%E5%B9%B6%E9%87%8D%E7%BD%AE%E7%94%B5%E8%B7%AF%E6%9D%BF%EF%BC%8C%E7%84%B6%E5%90%8E%E9%87%8A%E6%94%BE%20SW2%E3%80%82%3C%2FP%3E%3CP%3E%E8%BF%99%E5%BA%94%E8%AF%A5%E5%B0%86%E7%94%B5%E8%B7%AF%E6%9D%BF%E7%BD%AE%E4%BA%8E%20ISP%20%E6%A8%A1%E5%BC%8F%EF%BC%8C%E6%88%91%E5%8F%AF%E4%BB%A5%E7%9C%8B%E5%88%B0%E6%88%91%E7%9A%84%20LED%20%E4%B8%8D%E5%86%8D%E9%97%AA%E7%83%81%EF%BC%8C%E8%A1%A8%E6%98%8E%E7%94%A8%E6%88%B7%E4%BB%A3%E7%A0%81%E6%B2%A1%E6%9C%89%E8%BF%90%E8%A1%8C%E3%80%82%3C%2FP%3E%3CP%3E%E7%84%B6%E5%90%8E%E6%88%91%E5%B0%9D%E8%AF%95%E4%BD%BF%E7%94%A8%20Flashmagic%EF%BC%889600%20%E6%B3%A2%E7%89%B9%EF%BC%89%E8%BF%9B%E8%A1%8C%E5%90%8C%E6%AD%A5%EF%BC%8C%E4%BD%86%E5%AE%83%E8%B6%85%E6%97%B6%E5%B9%B6%E6%98%BE%E7%A4%BA%E2%80%9C%E8%87%AA%E5%8A%A8%E6%B3%A2%E7%89%B9%E5%A4%B1%E8%B4%A5%E2%80%9D%E3%80%82%E6%88%91%E5%B0%9D%E8%AF%95%E8%BF%87%EF%BC%9A%3C%2FP%3E%3CP%3E1.JP3%20%E7%9A%84%E4%B8%A4%E7%A7%8D%E8%AE%BE%E7%BD%AE%EF%BC%88%E7%94%B5%E8%B7%AF%E6%9D%BF%E4%B8%BA%20RevC%EF%BC%89%3C%2FP%3E%3CP%3E2.%20%E6%8C%89%E4%BD%8F%20SW2%20%E5%B9%B6%E2%80%9C%E9%87%8D%E7%BD%AE%20SW3%E2%80%9D%E4%BB%A5%E5%8F%8A%E7%89%A9%E7%90%86%E6%96%AD%E5%BC%80%2F%E9%87%8D%E6%96%B0%E8%BF%9E%E6%8E%A5%20USB%20%E7%94%B5%E7%BC%86%EF%BC%8C%E9%87%8D%E6%96%B0%E5%90%AF%E5%8A%A8%E8%BF%9B%E5%85%A5%20ISP%20%E6%A8%A1%E5%BC%8F%E3%80%82%3C%2FP%3E%3CP%3E%E6%88%91%E8%82%AF%E5%AE%9A%E9%81%97%E6%BC%8F%E4%BA%86%E4%BB%80%E4%B9%88%EF%BC%8C%E6%88%91%E5%81%9A%E9%94%99%E4%BA%86%E4%BB%80%E4%B9%88%EF%BC%9F%3C%2FP%3E%3CBR%20%2F%3E%3CBR%20%2F%3E%3C%2FLINGO-BODY%3E