Getting All 1's from SPI

[chaitanya-s]

Hello,

In SPI/ Normal mode (DMA -> Low / PM0,PM1 -> High), I am getting all 1's from all the registers.
I tried it with a couple of different ATM90E36A boards.
Please guide me, what may have gone wrong.

Thank You in Advance!

Here is the snap from Serial Monitor for a better understanding of the problem.

S0:0xffff
S1:0xffff
E0:0xffff
E1:0xffff
VA:655.35V
VB:655.35V
VC:655.35V
IA:65.54A
IB:65.54A
IC:65.54A
f655.35Hz

[krishchan007]

How did you solve this problem?

[krishchan007]

Actually, problem solved, if anybody else experiencing this problem, set correct CS pin in the eic initialization.

[zlomennypez]

Hello, I have the same problem, but I think I have correct CS PIN. Is there any way to verify connection or test SPI communication? Thank you in advance

[krishchan007]

I've used the nodemcu ESP32 to execute the example code, not sure what hardware you are using, if all the connections are correct, the ASIC should respond with the example program itself, if you have an oscilloscope make sure the clk pin is having pulses.

[zlomennypez]

Hello,

Thank you for the answer. I have find, that I use SPI2 pins of stm32, pins CS - PB12, CLK - PB13, MISO - PB14 & MOSI - PB15 and dont know, how to run it with theese pins, on default PA4,Pa5,PA6,PA7 it works, but I have LAN connector there.

Second thing is, that measured current is always positive, even if I turn CT, is it correct or there is other register to find direction of the current.

Thank you very much for usefull library.

[krishchan007]

Does these pins support hardware SPI?
If yes then try to change it in the SPI initialization, either in code or in the SPI library.
Answer to second question,
Idk how much aware are you about basic electrical engineering, since CT can only measyre alternating current and alternating current changes it's direction much faster (50 or 60Hz depending on the geographical location), there is no point in really worrying about the direction of current, also there are no known registers in this ASIC (atleast to my knowledge) which provides any such direction information.

[zlomennypez]

Thank you for your advice, I have changed library and now it works. Second question - I know AC changes direction by frequency, but I have photovoltaic system and I would like to know if my house produces energy or consumes energy.

[what-krishna01]

Thank you for your advice, I have changed library and now it works. Second question - I know AC changes direction by frequency, but I have photovoltaic system and I would like to know if my house produces energy or consumes energy.

hello zlomennypez
can you help me in getting results for same

[zlomennypez]

Thank you for your advice, I have changed library and now it works. Second question - I know AC changes direction by frequency, but I have photovoltaic system and I would like to know if my house produces energy or consumes energy.

hello zlomennypez can you help me in getting results for same

Hi, you have to change all occurencies of SPI.***** to SPI2, for example SPI2.beginTransaction(settings);

In main app you have to start SPI2.begin(spi2 pins) After that it worked.

[what-krishna01]

Thank you for your advice, I have changed library and now it works. Second question - I know AC changes direction by frequency, but I have photovoltaic system and I would like to know if my house produces energy or consumes energy.

hello zlomennypez can you help me in getting results for same

Hi, you have to change all occurencies of SPI.***** to SPI2, for example SPI2.beginTransaction(settings);

In main app you have to start SPI2.begin(spi2 pins) After that it worked.

ok I'll do that
currently what i am getting is this

ets Jul 29 2019 12:21:46

rst:0x8 (TG1WDT_SYS_RESET)
boot:0x13 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:1
load:0x3fff0030,len:4980
load:0x40078000,len:16612
load:0x40080400,len:3500
entry 0x400805b4
E (276) esp_core_f��}���͡: Core dump data check failed:
Calculated checksum='6858d9ee'
Image checksum='58154a35'
Start ATM90E36

[zlomennypez]

It doesn´t look like problem in library

[what-krishna01]

It doesn´t look like problem in library

oh
please help me in this issue
my mail :- sharmakrishnadei5040@gmail.com