Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
In the headfile which defines constant, I2C parameters are set:
#define RH_PIT_USEC_COUNT 200000U //200ms between two commands
#define RH_BAUD 900000U //SCL frequency 900kHz
#define RH_TRANSFER_LENGTH 2
#define RH_RECEIVE_LENGTH 6
#define RH_REQ_CMD 0x24//measurement request
#define RH_ADDRESS...
Hi Klaus,
Disabling open-drain was a mistake! Like you said wrong code may work today, but may not work tomorrow
Now I have a new problem with the SHT35 RH sensor after I2C pin changed into open-drain.
Since the I2C communication between Honeywell Humidlcon and the microcontroller has been...
Hi Klaus,
The cause is open-drain is disabled, but the same setting ever worked with the previous sensor, it did not occur to me that the code could be wrong.
Best regards,
Yinni
Hello,
I had a problem when implementing I2C communication between NXP Kinetis K50 micro-controller and Honeywell Humidlcon I2C RH sensor. The RH sensor doesn't acknowledge when receiving the default address 0x27. After testing SCL and SDA signals with oscilloscope, I realized the sensor failed...
Hello!
I've simulated one of my circuit with Saber of Synopsys Inc.
Now the only problem is I can't export the simulated waveforms as data files which can be read by matlab.
Please help me, thanks in advance!
P.S. With Matlab, simulated waveform can be stored in the workspace of Matlab...
Hello!
I've simulated one of my circuit with Saber of Synopsys Inc.
And now I've got the waveforms I expect, but I need the data of these waveforms to perform signal processing, but my problem is I can't save these waveforms as data file, which I may be invoke later.
Please help me, thanks in...
Even I have a program runing in the system, the current is unstable
The program includes a continuous SDRAM access procedure
When I burn the program to flash, I disconnect the ECLOCKOUT for SDRAM. If this pin is connected, the current may reach a very large value, and the SDRAM will be very...
Re: So small a resistor between core supply voltage pin and
Hello, IanP
Then I have another question
Now I have soldered DSP, FPGA and their power supply managers.
The total current consumed is 104mA, is it correct?
Sometime I've check other one's DSP+FPGA system, the current is just about...
hello!
I have a dsp system in my circuit
When I check whether tms320c6713's core supply voltage(CVDD) pin is short to GND with multimeter, I find that the equivalent resistor between them is just 39 ohm or 42 ohm. I have just solder DSP and the power manager TPS54312.
So small a resister...
Hello, cube007
Fortunately, I have other four PCBs, and I'm doing the work you adviced, FPGA and DSP are both difficult to solder for me.
For the theoretical power consumption, just the two SDRAMs in my circuit cost much power (1W for each), but there is no data transmission between DSP and...
hello, cube007
thanks for your help
It's a pity I've not set switches for every power consumption parts of the circuit, It's my fault. When the circuit is powered, the chips are not hot, just a little warm, except the 5V to 3.3V power convertor is a little hot, and the convertor's output is...
I've designed a signal acquisiton and processing system based on DSP(tms320c6713) and FPGA(Altera cyclone). When the circuit is powered, the total current is 0.55A though there is no program running neither in FPGA nor in DSP. The other devices, such as A/D, SDRAM and FLASH, do not work, just...
I've designed a signal acquisiton and processing system based on DSP(tms320c6713) and FPGA(Altera cyclone). When the circuit is powered, the total current is 0.55A though there is no program running neither in FPGA nor in DSP. The other devices, such as A/D, SDRAM and FLASH, do not work, just...
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
