About CGren.1

CGren.1 · 2021-05-18

Hello,I am running FreeRTOS Multitasks application. Actually, I am using the DMA1 channel 4 and 5 for SPI transfer and request #1.Now, I wonder if I can run in parallel USART DMA using the same channels (4 and 5) but they are linked to another req...

CGren.1 · 2021-03-12

Hello,I need to find a solution to generate a pulse through a GPIO...To generate a bit 0, I need to send a level HIGH of 300 ns following by a level LOW of 900 ns minimum.To generate a bit 1, I need to send a level HIGH of 900 ns following by a level...

CGren.1 · 2020-08-18

Hello,The system has a MCU STM32L151 and here the details.ESD testing + / - 15 KV contact on the box enclosure. PCB is inside and the ground frame is connected to the board and box. F/W Test: I performed ESD test in STOP mode only. The lock is alwa...

CGren.1 · 2021-05-18

I found that I can map UART to DMA2 channels 6 and 7. So, I will not have any conflict.Thanks

CGren.1 · 2020-08-19

My last tests were done at 15 KV but I already got issues at +/- 8 KV. The same symptoms occurred at +/- 15 KV and faster!

CGren.1 · 2020-08-18

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STM32L451 DMA and request on same channel?

Generate a very small pulse (STM32L451)

How to improve the firmware to prevent ESD discharge.

Re: STM32L451 DMA and request on same channel?

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Re: How to improve the firmware to prevent ESD discharge.