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vtran1
Associate II
since ‎2019-08-22
‎2023-06-14

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  • 18 Posts
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User Activity

Timer interrupt triggers immediately after interrupt enabled

2020-09-25
Hello all,I want to disable the timer interrupt in the IRQ Handler and then enable again in the main loop. However the interrupt is triggered nearly immediately after I re-enable the interrupt (setting the UIE bit). I attached my code below. If I dis...

PWM Timer generation not working with low duty cycle

2020-09-09
At low duty cycle (like below 5%), the timer pwm stops periodically (see the attached picture). The higher the duty cycle, the smaller the stop period. Does anyone know why this happens?For context, I am using the STM32F072 Discovery board. I use Cub...

HAL_FLASH_Program not writing to flash permanently

2020-04-29
Hi all,I am using HAL_FLASH_Program() to program an uuid into a specific address. I can verify it write successfully by reading from the address. However, if I power cycle the MCU, the memory at that address returns to the original value. If I write ...

STM32F0 USB CDC not working with Windows 7

2020-03-20
Hi all,I have a custom board made with STM32F070C6T6. I tried to implement USB CDC, and everything works fine on Windows 10 but in Windows 7 I cannot open the serial port although the Device Manager recognize it and the device status says "This devi...

STM32 USB VCP not enumerated

2020-02-19
Hi all,I created a CubeMX project with SM32F072 with just basic function for USB CDC and it works fine. However, if I add more peripherals to the project, such as adc and timer, the VCP is not enumerated on my PC. Nothing shows up on the Device Manag...
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