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Kess and ktag firmware
27-03-2018, 22:11 PM,
(This post was last modified: 27-03-2018, 22:20 PM by ka_rai.)
Post: #31
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RE: Kess and ktag firmware
hi friends
where you found good jlink to flash nxp ? (ebay 10€ ?) my pcb is EU clone, maybe i can rewrite fw in nxp without change NXP using jlink ? seem very difficult remove nxp .... ? thanks for your help |
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28-03-2018, 12:19 PM,
Post: #32
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RE: Kess and ktag firmware
You can with cp2102 rewrite fw if nxp doesn't have crp3. If crp1 or crp2 you can rewrite the same fw with usb to ttl only.
CRP1 disables access to chip via the JTAG and allows partial flash update (excluding flash sector 0) using a limited set of the ISP commands. This mode is useful when CRP is required and flash field updates are needed but all sectors can not be erased. CRP2 disables access to chip via the JTAG and only allows full flash erase and update using a reduced set of the ISP commands. Running an application with level CRP3 selected fully disables any access to chip via the JTAG pins and the ISP. This mode effectively disables ISP override using P2[10] pin, too. It is up to the user’s application to provide (if needed) flash update mechanism using IAP calls or a call to reinvoke the ISP command to enable flash update via UART0. |
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29-03-2018, 09:05 AM,
Post: #33
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RE: Kess and ktag firmware
thanks friend for your help
nobody have service to unsolder NXP ? (using good tools and good way ) |
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29-03-2018, 09:57 AM,
Post: #34
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RE: Kess and ktag firmware
(29-03-2018, 09:05 AM)ka_rai Wrote: thanks friend for your help look in selling section there used to be a few people there offering nxp replacement if my post helps please give Reputation and Thanks
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