Search found 11 matches

Thank you both Ttelmah and temtronic.

Ttelmah, If it does not use much time for you, please share an idea how to fill the buffer and send it to computer without doing multiple putc.

Temtronic, Y ...

Dear Ttelmah,

Thank you very much for your answer. I think I have to test rate of transfer by capturing the time as "temtronic" advise me. I have few questions to ask you about transferri ...

Thank you very much temtronic,

I read your answer it is useful for me to test sending much data via USB and using timer for detection. However, I do not sure all data must transfer every 1ms or not ...

Hi everyone,

I use DSPIC33EP256MU806 for sending ADC data to computer via USB port. It can read ADC data up to 500Ksps(kilo sample per second).
I try to send ADC data via USB port by CDC class ...

I really need for help from everyone. If someone use DSPIC33EP256MU806, please help me.
AKIOM

I decide to use DSPIC33EP256MU806 in my image-sensor project because it has 12 bit A/D converter, support USB interface and fast operation (70MIPS).
I design a test circuit for DSPIC33EP256MU806 t ...

Dear all
Thank you very much for suggestions.

My project is measure voltage signal from photo-detector array.
Ttelmah, I very appreciate your suggestion. I will start walking as you advise me. Al ...

Ttelmah, Thank you very much again.

After I read your suggestion. To accurate ADC, It should have
1. External Voltage Reference for ADC
2. External supply with voltage regulator
3. Decoupling c ...

Dear oxo and Ttelmah
Thank both of you very much for answering me.
I have the question in my mind about my code.

read_adc(ADC_START_ONLY);
sleep();
delay_cycles(1); ...

I read datasheet p35 as you suggest. The detail is when the PIC sleep, it use internal oscillator so adc work. After, it finish reads Analog signal, it should be waked by INT_AD. All in all, I test my ...

I would like to convert analog to digital in sleep mode to reduce noise. Then, I send the value via usb port. When I enable INT_AD, PIC18f4550 can not send anything to computer. Even, I script sleep ...