Search:
Type: Posts; User: Aussie Susan
Search: Search took 0.03 seconds.
-
20th November 2019, 03:17
Thread: Functionl Generator 600 MHz
by Aussie Susan- Replies
- 7
- Views
- 454
Closed: Re: Functionl Generator 600 MHz
You also need to think about what the lower end of the frequency range is.
There are a lot of circuits out there for "600MHz vco" (the google search I did) but many only have a limited range (say... -
18th November 2019, 22:55
Thread: Enabling PLL in PIC18F
by Aussie Susan- Replies
- 4
- Views
- 374
Closed: Re: Enabling PLL in PIC18F
In a word: No!
The issue with that MCU is that the PLL only multiples by 24 and must have an input frequency of 4MHz. (The reason is that this gives the 96/2 = 48MHz required for USB operation).... -
18th November 2019, 22:39
- Replies
- 1
- Views
- 196
Closed: Re: Signed fractional format ADC dspic33EV
Exactly which MCU do you have (you have mentioned dsPIC33EV and dsPIC33EP - but the next characters may or may not be significant)?
Do you have it set for 10-bit or 12-bit? Showing us the... -
14th November 2019, 22:41
Thread: Suggestions of RTOS for STM32F429
by Aussie Susan- Replies
- 4
- Views
- 843
Closed: Re: Suggestions of RTOS for STM32F429
If you are using the STM32Cube then it has FreeRTOS already in it with some documentation.
Susan -
14th November 2019, 22:39
- Replies
- 12
- Views
- 598
[PIC]Closed: Re: PIC16F1934 Timer0 and some other stuff
Just to be clear: with the IF bit set (and also the IE bit set of course) the ISR will be called. You *should* clear the IF flag in the ISR to make sure that the next time it is set by the hardware,...
-
13th November 2019, 23:34
- Replies
- 6
- Views
- 497
Closed: Re: CAN communication between two nodes (PIC18F458 and MCP2551 ) hardware
How are you testing that you are not getting any output?
You say you are using a PIC development board - which one?
Can you toggle the RB3 (CAN output) pin with your own bit of code?
Where did you... -
10th November 2019, 22:45
Thread: STM32L475 IoT with bluetooth module
by Aussie Susan- Replies
- 1
- Views
- 306
Closed: Re: STM32L475 IoT with bluetooth module
What experience do you have with programming any microcontroller, let alone the STM32L family of devices?
I suspect that you are jumping in at the deep end without knowing the basics which is a path... -
6th November 2019, 22:55
Thread: Pic32 qei interrupts
by Aussie Susan- Replies
- 2
- Views
- 215
Closed: Re: Pic32 qei interrupts
Which compiler are you using?
If it is XC32, then the User Guide will show you very clearly how to write an ISR.
If it is some other compiler then I a pretty certain that its User Guide (or similar... -
6th November 2019, 22:52
- Replies
- 10
- Views
- 514
[SOLVED]Closed: Re: Generating Sine Wave Through External DAC (STM32)
This part of your code makes no sense - it means that you are always using 's[0]' to hold the value. Therefore why create an array when all you need is a single variable.
I suspect that you are... -
31st October 2019, 23:20
Thread: How to do 8-bit wide write with FMC?
by Aussie Susan- Replies
- 2
- Views
- 222
Closed: Re: How to do 8-bit wide write with FMC?
You really need to show us your code so that we can see what you have done.
I can only guess but you probably have not configured the FMC correctly.
Can you explain what you mean by a 74-bit bus?... -
29th October 2019, 03:02
- Replies
- 16
- Views
- 872
Closed: Re: Connect 32 serial lines to uC (eg. ESP32) over I2C or SPI?
It sounds like you are capturing the console logs for these devices. Is the console port the *only* place the text is stored?
At least on many servers there are log files that you can access,... -
28th October 2019, 03:00
- Replies
- 11
- Views
- 1,231
Closed: Re: Problem with PIC16F877A, infinite loop output voltage 0.6V
Looking at the last 3 instructions in your post #9 (before the 'return' that is) and without knowing what happens in the 'enable' and 'writestar' functions, it seems to me that you always call the...
-
17th October 2019, 22:58
- Replies
- 7
- Views
- 535
Closed: Re: Getting trigger signal for 555 timer from elevator button.
Reading your first post worries me a little in that you seem to be just trying various values of your components to see what happens.
What you need to do is to learn how to read the data sheets of... -
17th October 2019, 22:50
- Replies
- 48
- Views
- 2,840
Closed: Re: 12 Bit ADC with interfacing SPI in STM32
I think you are getting a number of concepts mixed up here.
1) Sampling rate: You will need a timer to reliably trigger the ADC sampling at a regular interval.
The way to tell the ADC to start... -
10th October 2019, 23:00
- Replies
- 48
- Views
- 2,840
Closed: Re: 12 Bit ADC with interfacing SPI in STM32
You are still treating the SPI module like a UART (which can do independent transmits and receives).
Not tested but try something like:
spidata[0]=0x00; // Set everything up before you... -
10th October 2019, 03:03
- Replies
- 48
- Views
- 2,840
Closed: Re: 12 Bit ADC with interfacing SPI in STM32
Have you changed the setup of the SPI module from the one shown in your first post?
Basically, the SPI module should NOT be generating the clock all of the time unless you are in 'Receive Only' mode... -
7th October 2019, 23:08
Thread: STM32F429I-DISCO help
by Aussie Susan- Replies
- 4
- Views
- 423
[ARM]Closed: Re: STM32F429I-DISCO help
I suggest that you start with something specific in mind to have the MCU actually do.
Typically the first think is to 'blink a LED' - in order to get that working you need to have the development... -
6th October 2019, 23:37
Thread: STM32F429I-DISCO help
by Aussie Susan- Replies
- 4
- Views
- 423
[ARM]Closed: Re: STM32F429I-DISCO help
To do what?
Have you looked at the ST website?
Susan -
2nd October 2019, 00:01
Thread: SD card - pull-ups required?
by Aussie Susan- Replies
- 6
- Views
- 657
Closed: Re: SD card - pull-ups required?
I'm not so sure that this is a good idea as SD cards have a limited write/erase cycle life. Depending on how you intend to use the SD card, this could mean that the whole device needs to be replaced...
-
3rd September 2019, 23:31
- Replies
- 9
- Views
- 924
Closed: Re: ADC simultaneous sampling of 4 channels
Feel free to select any other ADC (and possibly any other MCU) that meets your requirements.
Susan -
2nd September 2019, 23:47
- Replies
- 9
- Views
- 924
Closed: Re: ADC simultaneous sampling of 4 channels
Check out the Family Reference Manual (FRM) ADC section for that device. The FRM documents often provide greater detail (and code examples) about how to use the modules than the data sheet. However...
-
29th August 2019, 23:54
Thread: Enc28j60 with STM32F4
by Aussie Susan- Replies
- 4
- Views
- 608
[ARM]Closed: Re: Enc28j60 with STM32F4
@Santi - this is the 5th thread you have started on this topic (https://www.edaboard.com/showthread.php?386256-Enc28j60-with-stm32f4&highlight=enc28j60,...
-
29th August 2019, 00:20
Thread: Enc28j60 with stm32f4
by Aussie Susan- Replies
- 1
- Views
- 352
Closed: Re: Enc28j60 with stm32f4
All that 'tutorial' does is now how to set up the SPI interface on an MSP430! That is not the same MCU you are using.
Looking at this and other questions with (basically) the same title, I think you... -
20th August 2019, 23:45
Thread: Enc28j60 with stm32f4
by Aussie Susan- Replies
- 1
- Views
- 290
[ARM]Closed: Re: Enc28j60 with stm32f4
Have a look at the demo code on the Microchip site. While that is written for the PIC families of devices, they are in C and the communication between the MCU and the ENC28J60 is via an SPI interface...
-
20th August 2019, 23:43
Thread: Enc28j60 with stm32f4
by Aussie Susan- Replies
- 2
- Views
- 339
[ARM]Closed: Re: Enc28j60 with stm32f4
Don't forget that the ENC27J60 provides just the bottom layers of the IP stack. You still need to provide the upper layers where things such as web pages, HTML code etc. are defined.
Susan
Results 1 to 25 of 500