InSTGAP3SXSdatasheet is funny table , input -> output state, the most important thing for a driver - but wrong:btw : 1. Do not care. -- is perfect here.
Hi,i just tried to see the reaction on some events on a system with H7A3 cpu and was surprised:EXTI response time was 50 us ! This is a lot for a ARM cpu running at 200MHz - too much, i would say.ED: wrong timings measured, my error : pins have cer....
Hi,in ds for STM32H747xI/G , DS12930 Rev 2 , for Temp.sensor CAL2 : 130° (Parameter) is written here: BUT max. temp for chip is 125° :So i assume, this is misspelled , because in all other : (H743, H750, H7A3 ..) 110° + 30° are given.NOT 130° .
Hi,We have now a problem with some boards, H7A3ZI or H743ZI , when switching off : RTC stops working !RTC is powered on VBAT with a standard CR2032 and was working as it should on about 500 boards since more than a year. Now (some) batteries loosin...
So just set the clock tree , using 8M , and then check spi speed.And always, if "maybe" clock problem, -> check with a scope on MCO , the internal clock is really what you expect !
Ok,so what is set as prescaler for this spi ?see in your main: (example on spi4)static void MX_SPI4_Init(void)
{
/* USER CODE BEGIN SPI4_Init 0 */
/* USER CODE END SPI4_Init 0 */
/* USER CODE BEGIN SPI4_Init 1 */
/* USER CODE END SPI4_Ini...
Hi,your plan seems ok. (just make sure, never have vdda > vdd active.)from ds H563:So vdda can be zero, if not using adc..etc , when vdda < 2.1V . btwIf you want smps for vdd for low power consumption , why not using the version with internal smps (H...
Hi,not clear : you have an external adc at 1 Msps . Why ( internal 16b ADC can do this also ) ?+SPI at 100Mbit set (bit high...for 1 Ms conversion rate - or not ?) - but runs 6x slower - right ? Did you check with MCO , the internal clock is what yo...
