i try to use 1.8v adapter, and jump the from ene adapter directly to 1.8v adapter, when i click detect, it will show ic not responding three times, and when i click detect again, it show wrong device.
Oh i do not think you can program it with ch341a programmer you wil need svod programer , rt809 or vertyanov programmer. But you can probly buy preprogrammedkbc chips too.
nooooo.... its too expensive... its kb9027, neo programmer not supported it? i have look in the neo programmer, there are kb902x. but i never read that kb9027 couldnt reprogrammed in ch314a, are you sure?
i succesfully flash the kb9027q use ch314a programmer. i not jumper from vcc in ch314a to vcc of kbc before, so it doesnt read the kbc. but the problem still same, the R22 and 1R0 still have 0 volt. and i will trace again
I have check the voltage, S5_ON in kbc is measured, but pin 100 99 and 98 which is SPI_1.8V_ON, MAINON and SUSON is not measured. I check vcc 3 volt of kbc in L2000 is measured 3 volt, but when i check +1.8V_ECIO ,it measured 0 volt. when i trace 1.8 volt, it come from +1.8V_ROM which come from PR231 and go to PU14. in the PU14, the enable pin is pin 3 and pin 5, and that pin come from pin 100 and 99 in kbc. anyone can tell me?
i think the problem is mainon and the spi_1.8v_on, because that, the +1.8V_ECIO not detected. because that problem, PL15 and PL11 not worked. either that, the VRON pin 34 in U2000 which is enable the PL44 and PL46 measured 0 volt. How can a kbc just work in S5_ON pin?
where mainon, suson, SPI_1.8V_ON and VRON come from? it is from internal of kbc right? enable just from +3VPCU_EC and +3VPCU_KBC? if thats right, can it be the kbc is defective?
I chechk the rsmrst pin and dnbswon in kbc, it reads 3.3 volt. But when i check SUSB and SUSC, it reads 0 volt, it is normal? Or should i use oscilloscope to check the signal is exist or not. Cause i dont have oscilloscope. But i thought that the SUSB and SUSC exist, cause there are 3 and 5 voltage in the coil
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