system param error @ ESP-01

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Re: system param error @ ESP-01

By jankop
- Fri Aug 28, 2015 3:32 am #27217 First, by my, your flash is not 4MB but 4Mb. It is 512KB/40MHz/QIO. What is really your flash memory module? It is SST25VF040B or W25Q40BT?
Secondly, do not forget to connect the inputs GPIO2 and GPIO0 with pullup resistors to Vcc. It is very important.
Latest firmware is here https://github.com/nodemcu/nodemcu-firmware/releases
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Re: system param error @ ESP-01

By zivimo
- Sat Aug 29, 2015 3:49 am #27297 OK after flashing many times, changing the power supply, flashing another hundred times it seems to work now (maybe flash corruption while flashing cause by brown out or so). In the future I will try also flash with pullups. Thank you guys for your help and time.

BTW: My SPI flash module is SST25VF040B (http://akizukidenshi.com/download/ds/sst/25051A.pdf). And yes its pretty confusing, some tools get parameters Mbit some in Mbyte and youre pretty often not sure which they need.

But anyway now it works. Thanks again.
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