Stm32101t8U6 rtc no Vbat pin...
Posted on October 05, 2015 at 19:52How to be a STM32F101T8U6that does not have VBAT pin, if the VBAT pin by VDD, then how to read the time after SHUTDOWN MODE the STM32F101T8U6. #rtc #rtc
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STM32F0 RX interrupt not working
Posted on October 06, 2015 at 08:52I have an STM32F0 which is receiving and transmitting serial data. When I send the data another board responds. If I poll RXNE looking for the data and store it in an array like this everything works: //while ((USA...
SPI with circular DMA and CRC not possible?
Posted on October 05, 2015 at 09:46I need to receive a lot of SPI data on a STM32F4. To handle this, I use a DMA buffer in circular mode. Also, I need to use the CRC feature. How ever this seems not to be possible with the HAL according to this note...
STM32F4 - Possible bug in compiler/linker/me? using large arrays in external ram
Posted on October 06, 2015 at 13:46 I recently run into a problem while using the following: Crossworks v2.3.5.201401120385 with a STM32F407ZG Cortex-M4 It goes like this: I installed an external SRAM (AS6C4016A-45ZIN, 512KB) on the FSMC...
HAL FreeRTOS change time base
Posted on October 06, 2015 at 11:28Hello there,I am using HAL library with FreeRTOS middleware. The minimum delay I can use for the osDelay() function seems to be 1 ms. I would like to turn on task periodically every 10 or 100 ns. Is that even possi...
TJpgDec + DMA2D
Posted on October 06, 2015 at 12:58 Hi. I'm trying to combine TJpgDec and DMA2D. However, the display shows white square. UINT output_func(JDEC *jd, void *bitmap, JRECT *rect){ static DMA2D_HandleTypeDef hdma2d_eval; WORD h =...
Send ADC measurement to PC through USART
Posted on October 05, 2015 at 19:42Hello,my name is Carlo. I'm a student new to STM32 and MCUs in general.What I'm trying to do is to send a 16-bit ADC value through USART to PC, using stm32f0. I found some troubles doing this since USART takes one ...
RESOLVED: Can't debug in RAM
Posted on October 02, 2015 at 22:30I’ve built an application, but I cannot debug in RAM. The project originated from the Cube TIM Example for the 429i Discovery Board. I am using an stm32f429xx_sram.icf file, which seems to correctly place ROM and R...
STM32L151 - leaving Standby mode with time-stamp
Posted on October 02, 2015 at 15:08Hello!Well, my question is that is it possible to leave Standy mode on STM32L151 after a given time (lets say 30 sec)? I have designed a custom board, and did not include a 32.768kHz oscillator for RTC, nor did I c...
STM32F429x don't start - Vcap problems...
Posted on October 01, 2015 at 13:33Hello there!I've desingned a board for a project with a new STM32F429VGT6 controller. My main problem is that I cannot program the controller, ST-Link says it ''can not connect to target''. Of course, I've already ...
