L1 Reference Manual Error
Posted on March 16, 2015 at 18:52In RM0038 Rev 12, TIM6 & 7 CR1 register is stated to have a reset of 0xFFFF. That means a reset enables the counter. Reset value is probably 0x0000. Regards, Hal
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Is there a good way to implement a UART driver that uses DMA and freeRTOS?
Posted on March 07, 2015 at 00:35Is there a good way to implement a UART driver that uses DMA and freeRTOS? Or should I let the RXE TXNE interrupts handle the queueing and use no DMA?It would be nice to use tha DMA to shuffle data to an array and th...
STM32 PWM width different pulse width and modified in another interrupt
Posted on March 16, 2015 at 15:53Hi, I need to modify a PWM inside an interrupt, I though that It would be easy, just changing CCR2 to the new desired value but it is not working properly.The change is not happening each pulse, it is a bit random.. ...
STM32 HAL UART Driver
Posted on March 16, 2015 at 16:25 Working with the STM32F439 UART and originally used DMA for TX and RX, and that was working. For other reasons I wanted to change RX to use interrupt, and I had difficulty getting it to work... I got things work...
STM324x9I-EVAL first steps
Posted on March 16, 2015 at 12:36Dear users, I recently got a present - STM324x9I-EVAL board. So far I've been tinkering with Arduino's and made some mini projects. But this one surprised me - I saw almost no references and ''how-to'' online (in com...
STM32F030 interface with SD card using SPI
Posted on March 16, 2015 at 08:52 I am trying to implement this project using the demo files provided by ST ''STM32Cube_FW_F0_V1.0.0\Middlewares\Third_Party\FatFs''. I have also written the necessory code for low level SPI driver. The command...
Assign Hostname to my STM32F4 board using lwip
Posted on March 16, 2015 at 03:39Hi,I'm using my STM32F4DISCOVERY board with the STM32F4-BB shield which contain an Ethernet PHY/connector.i found many example for Ethernet communication using lwip and they work fine.i want to use my STM32F4 board a...
USART_SendData adding bits
Posted on July 17, 2013 at 11:42Hey I'm running the STM32L1 chip with an XBEE unit and everything works perfectly except my Tx adds bits when there is an even number in the unsigned char (I typedef this as BYTE) being sent. Shows in Putty and X-CTU....
USB VCP on STM32F3 discovery with FreeRTOS
Posted on February 27, 2015 at 03:04Hi there,I have the STM32F3 discovery board and running a FreeRTOS.I also have the USB virtual Com port (VCP) code from here: http://www.pezzino.ch/stm32f3-discovery-usb-virtual-com-port/ I have tested the USB VCP...
429 uart IDLE flag not available in DMA receive?
Posted on March 16, 2015 at 08:12I use UART + DMA to receive unknown length packet, and use IDLE interrupt to monitor the end of the packet. It can recevie IDLE interrupt, but in HAL_UART_IRQHandler I read SR register and IDLE flag is 0. I never en...
