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Resolved! STM32F767ZI QUAD SPI

Posted on August 15, 2017 at 11:06Hello. I work with stm32f767ZI nucleo-144, and try use QUAD SPI bank1 to access W25Q128BV. All OK when i use 1 wire or 2 wire(dual mode), but when i use quad mode(4-wire), something went wrong. SPI Pins:            ...

Resolved! High values on unconnected GPIO pins

Posted on August 16, 2017 at 12:31 Hello. I'm developing an application based on Discovery board with stm32f429I. And now I have quite a weird issue:a high signal level is shown on unconnected input pins. Here is a code: //Configure PC4 ...

Resolved! Configuration of DMA for USART-RX buffer

Posted on August 14, 2017 at 17:23Hey there!I'm working on stm32f051 MCU for a little project and a I  have to receive and process data from its USART port 1.My issu is that I don't have any interuption from the DMA, and if I check directly on the b...

Sector Codes Can Bootloader

Posted on August 15, 2017 at 18:00According to AN3154 Datasheet I must write sector code in data field.But I dont know what is sector code and How can i find it for stm32f4 discovery?Just I want to erase sector by sector what I must do?(I know I mus...

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