Search found 5 matches
- Sun Sep 10, 2023 5:25 pm
- Forum: STM boards (Discovery, Eval, Nucleo, ...)
- Topic: STM32F401 with W5100 shield
- Replies: 0
- Views: 13047
STM32F401 with W5100 shield
Hi, I wrote some code for a simple webserver project running on a Mega2560 with a W5100 shield - it works fine. So I thought I'd port the code over to a Nucleo 64 F401 but have been running into problems. The Nucleo doesn't have the 6 pin ISP connector to interface to the W5100 shield - so I've foll...
- Fri Jan 20, 2023 4:04 pm
- Forum: General discussion
- Topic: Default master clock source
- Replies: 2
- Views: 1067
Re: Default master clock source
Ok, I've made some progress and now have my Nucleo board running with a 16MHz external xtal. I used Cubemex to generate the clock tree numbers but for some reason it's running twice as fast as it should. EG if I set a baud rate of 57600 it actually generates 115200 Any ideas as to where I've gone wr...
- Fri Jan 20, 2023 11:10 am
- Forum: General discussion
- Topic: Default master clock source
- Replies: 2
- Views: 1067
Default master clock source
Hi guys I little while back I started a thread about how to measure frequencies up to 30MHz with 1kHz resolution using a STM32F401 Nucleo board. After a lot of experimentation I was successful, but have now run into another problem. I suspect by default I'm using the internal 16MHz RC oscillator whi...
- Sun Dec 04, 2022 9:50 pm
- Forum: General discussion
- Topic: Timer config for frequency measurement
- Replies: 7
- Views: 2035
Re: Timer config for frequency measurement
Hi guys thanks for your comments - all understood and I've been making some progress using Cubemx and cubeide to control two timers. One generates a 100mS trigger which is used to capture the current count of the other. Subtracting old from new counts gives me the number of pulses (cycles) in 100mS....
- Thu Dec 01, 2022 8:02 pm
- Forum: General discussion
- Topic: Timer config for frequency measurement
- Replies: 7
- Views: 2035
Timer config for frequency measurement
Hi guys 1st post but long term lurker ! I've been trying to update a design I originally did 7 years ago which used a Teensy processor and was written entirely in C using the Atmel environmanr. I've recently discovered the delights of an STM32F401re and have started to port the code using stm32duino...