Search found 1690 matches
- Sun Apr 21, 2024 2:20 am
- Forum: General discussion
- Topic: WeAct Studio STM32F411CEU6 BlackPill v3.1 crystal is 8 MHz
- Replies: 41
- Views: 13255
Re: WeAct Studio STM32F411CEU6 BlackPill v3.1 crystal is 8 MHz
The values given and used are correct, yup check the LED, try to use a led connected to a different pin manually e.g. on the headers. I've more than once used boards with a 'defective' LED, sometimes they put the LED reversed, that'd never light up. manufacturing error. no need to look at schematic....
- Sun Apr 21, 2024 2:03 am
- Forum: General discussion
- Topic: WeAct Studio STM32F411CEU6 BlackPill v3.1 crystal is 8 MHz
- Replies: 41
- Views: 13255
Re: WeAct Studio STM32F411CEU6 BlackPill v3.1 crystal is 8 MHz
@Fziegler_076 wrote: RCC_OscInitStruct.PLL.PLLM = 8; RCC_OscInitStruct.PLL.PLLN = 48; RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV4; RCC_OscInitStruct.PLL.PLLQ = 8; ^ this won't work, try RCC_OscInitStruct.PLL.PLLM = 8; RCC_OscInitStruct.PLL.PLLN = 192; RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2; RCC_O...
- Sat Apr 20, 2024 7:02 pm
- Forum: General discussion
- Topic: WeAct Studio STM32F411CEU6 BlackPill v3.1 crystal is 8 MHz
- Replies: 41
- Views: 13255
Re: WeAct Studio STM32F411CEU6 BlackPill v3.1 crystal is 8 MHz
Note that even with a wrong crystal frequency, you should be able to blink your led void setup() { pinMode(LED_BUILTIN,OUTPUT); } void loop() { digitalWrite(LED_BUILTIN, ! digitalRead(LED_BUILTIN)); delay(1000); } and your LED should blink, if it doesn't blink then your issue is likely not related t...
- Wed Apr 17, 2024 6:34 pm
- Forum: General discussion
- Topic: Can't program F401 after PA9 set as INPUT_PULLUP
- Replies: 2
- Views: 2479
Re: Can't program F401 after PA9 set as INPUT_PULLUP
I suppose you are using a stm32f401cxx blackpill (or some such variant?) https://stm32-base.org/boards/STM32F401CCU6-WeAct-Black-Pill-V1.2.html the 'usual' thing is, keep your usb cable connected press both boot0 and reset hold boot0 and release reset release boot0 1-2 secs later you can check in 'd...
- Thu Apr 11, 2024 2:43 pm
- Forum: IDE's
- Topic: Generic_F030RCT missing?
- Replies: 12
- Views: 7268
Re: Generic_F030RCT missing?
Binary size difference appears to be Newlib Standard vs Newlib nano setting... Not entirely sure what newlib is... :D Clock situation still appears to be happening. I once tried things like -nostdlib -nostartfiles -nodefaultlibs https://gcc.gnu.org/onlinedocs/gcc-4.4.2/gcc/Link-Options.html and the...
- Wed Mar 27, 2024 2:32 am
- Forum: General discussion
- Topic: Hardware Serial returning gibberish.
- Replies: 3
- Views: 4285
Re: Hardware Serial returning gibberish.
many GPS device initialize at 9600 baud, not 57600 baud. and various of them offer commands to set the baud rates after initially connecting at 9600 bps if you do not know the actual GPS bauds, to avoid getting gibberish, you would need to practically test every practical known baud, till one that d...
- Tue Mar 26, 2024 2:12 pm
- Forum: General discussion
- Topic: strange USART behaviour
- Replies: 6
- Views: 4011
Re: strange USART behaviour
for uart, your *baud rates* and line discipline (e.g. 8N1) matters. for usb (CDC) serial, it doesn't matter, there is no baud rates, it is straight 12 Mbps USB full speeds based on the specs. so if you are using uart and the other side is not at the same baud rates, all data will be garbled. for uar...
- Wed Mar 20, 2024 12:28 pm
- Forum: General discussion
- Topic: ToneAC on stm32
- Replies: 1
- Views: 1291
Re: ToneAC on stm32
you can try playing with the hardware timer and PWM https://github.com/stm32duino/Arduino_Core_STM32/wiki/HardwareTimer-library https://github.com/stm32duino/STM32Examples/tree/main/examples/Peripherals/HardwareTimer but that if that is some form of sigma delta DAC https://en.wikipedia.org/wiki/Delt...
- Mon Mar 18, 2024 7:27 am
- Forum: General discussion
- Topic: STM32SD adjust file timestamps?
- Replies: 4
- Views: 2940
Re: STM32SD adjust file timestamps?
apparently STM32SD https://github.com/stm32duino/STM32SD depends on FatFs https://github.com/stm32duino/FatFs which has a getfattime() callback https://github.com/stm32duino/FatFs/blob/bf405bad29c66accd9df5570084ad80a8c78cd11/src/ff.h#L295 https://github.com/stm32duino/FatFs/blob/bf405bad29c66accd9d...
- Thu Mar 14, 2024 3:34 pm
- Forum: General discussion
- Topic: I2C communication does not work.
- Replies: 3
- Views: 1151
Re: I2C communication does not work.
I2C requires a 'different skillset' vs playing with uart, uart is point to point, it is only 2 devices a sender and the other a receiver and vice versa. but of course it is up to one to make things complicated by adding RS485, RS422 etc, but that is off-topic. Then that for i2c, many devices share t...