Keil MDK : 5.23
CHIP : LPC824M201
Jlink dirver: V5.12f
i configure CRP as NO_ISP mode
; <h> Code Read Protection
; <o> Code Read Protection <0xFFFFFFFF=>CRP Disabled
; <0x12345678=>CRP Level 1
; <0x87654321=>CRP Level 2
; <0x43218765=>CRP Level 3 (ARE YOU SURE?)
; <0x4E697370=>NO ISP (ARE YOU SURE?)
; </h>
IF :LNOT::DEF:NO_CRP
AREA |.ARM.__at_0x02FC|, CODE, READONLY
DCD 0x4E697370
ENDIF
AREA |.text|, CODE, READONLY
i download with jlink several times then it said that
jink log as follow
how to recovery chip?
Hi,
Have a great day,
TIC
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thank you for reply,
but i can't connect device by jlink and error message is
***Jlink Error: DAP error while reading AHB-AP IDR.
Hi cai bai,
Thanks for your reply.
I'd like to know whether the LPC824 can enter the ISP mode or ISP.
If yes, Flash Magic tool supports erase feature which can recover the chip.
Please give it a try.
Have a great day,
TIC
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LPC824 can't enter ISP, it can't be use Flash Magic to connect deivce,
now i disable CRC (set value to 0xFFFFFFFF at 0x000002FC) but it also can't to connect after first download image to flash.
Have a great day,
TIC
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Note: If this post answers your question, please click the Correct Answer button. Thank you!
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thank you for reply, now i can goto ISP mode and download success,but when i check nReset Pin, the voltage only 2.0V,some times only 1.0V, MCU input voltage is 3.0V?