STM32 MCUs Products
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How can I pass a variable via a Makefile into a .s file?
I wish to pass a value from a script into the .s start-up file, similar to the following with a C program. The script 'mm' exports the CAN id, 0xB0A00000-- ./mm B0A00000and when 'make' executes, the 'Makefile' includes the following, which passes the...
Gcode interpreter for STM32L4RZI nucleo
Hello - Does anyone know of a Gcode interepreter for the STM32L4. I am building a 6 axis robotic arm and want to use my nucleo board (with L4 series) to control the motors. I have put alot of time and effort in finding gcode interpreter but haven't f...
STM32L471RET6 Strange interaction about PB12 and PC12
Hello all, I have encountered unexpected behavior on the voltage level of PC12 when I enable PB12.My setup:PC12: Level high, output mode PP, no PU no PD, Output speed High. PB12: Level low, output mode PP, no PU no PD, Output speed Low.Without PB12 t...
Timer with interruption
Hello, I've an error in the interrupt but I don't see where it can come from.
Resolved! Calculate the frequency of the QUADSPI.
I have developped a graphical demo with the STM32H735 discovery kit, and the minimum frequency of the OCTOSPI to have a clean display is 66 MHz (framebuffer = 480x272x32). Now I want to use in my application an External RAM with QUADSPI (framebuffer...
Resolved! Error report on AN4839
Hello there, recently i have found a error in the application note an4839.The strongly-ordered memory region in the Table 2. Memory region shareability and cache policies is remarked as non-schareable. Howerver according to ARM DUI 0646B ARM Cortex-M...
reading arrow key from UART
Hello, has anyone ever used UART to read arrow key? I tried using STM32 MCU on CubeIDE, but can only get two characters ASCII number 27 and 91 and couldn't get the third character which is supposed to be 'A' for Up key, 'B' for Down key, 'C' for righ...
STM32H753XI. When 2 DMAs are working and writing data from SPI1/2 to SRAM1/2 the received data has errors. When only one DMA is working the received data has no errors. Why?
I am using STM32h753XI.The MCU uses 2 SPI channels (SPI1 and SPI2) in slave receive mode.The MCU uses 2 DMAs channels (DMA1 stream0 and DMA2 stream0) to read the data from SPI1 and SPI2 and write it to SRAM1 and SRAM2 respectively.The input SPI sclk ...
