About MSuhe

MSuhe · 2019-05-09

Can someone please clarify if the IN endpoint FIFOx transmit RAM start address part of OTG_DIEPTXFx register should be "word address" or "byte address aligned to 32-bit boundary".We are currently treating this as "word address", inline with what STM3...

MSuhe · 2019-04-23

We are working on radio dongle application using STM32F411/13. We have mostly everything working, except for a lingering issue with USB. Details of the issue are as below:The radio dongle application enumerates as a CDC-ACM device as expected.And we ...

MSuhe · 2019-04-10

In out project we are making use of EXTI for interfacing a radio (RF) ASIC with STM32F411. Whenever, the radio has some data to be sent host it interrupts the host using the I/O line (drives the line high). This I/O line stays high till data is read ...

MSuhe · 2019-04-05

We have been working on developing a USB dongle based on STM32F413/L476 which acts as a CDC-ACM serial device. We mostly have everything up and running expect for an issue with USB which shows up sporadically and details are as below:USB CDC-ACM inte...

MSuhe · 2019-01-18

Is there anything to be taken care off while filling the TX FIFO's on USB OTG FS with STM32F411.We observe an issue where the device seems to lock up, waiting for the TX done interrupt to fire. And while browsing i have found some posts where people ...

MSuhe · 2019-05-09

Thanks a lot for your inputs.

MSuhe · 2019-05-09

Hi Jan,Can you please share your inputs to above queries.Regards,Suhel

MSuhe · 2019-05-09

Thanks for your response. Just for experimental purpose, we tried setting the TX FIFO RAM start address as "byte address" as below:RX FIFO: only FIFO depth in words-------------------------OTG_GRXFSIZ.RXFD[15:0]: Rx FIFO depth = 0x80 (128 32-bit word...

MSuhe · 2019-05-09

Thanks for your response. Your statement is valid for STM32F411 OTG_FS as well ?

MSuhe · 2019-04-23

We also tried different ways of reproducing this issue, and the easiest way to do so was by closing the host application/script while the communication between USB host and device is ongoing. So, if i abruptly close the host application and if the OT...

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STM32L476: OTG_FS: IN endpoint FIFOx transmit RAM start address is word address or byte address aligned to 32-bit memory location

USB OTG_FS (device mode) CDC-ACM: IN endpoint freezes

STM32F4: EXTI: Fails to capture rising edge interrupt sometimes

STM32F413/L476: USB_OTG_FS (CDC-ACM) (device-mode): IN endpoint lock-up

USB OTG FS (CDC-ACM): things to take care off while filling TX FIFO's

Re: STM32L476: OTG_FS: IN endpoint FIFOx transmit RAM start address is word address or byte address aligned to 32-bit memory location

Re: STM32L476: OTG_FS: IN endpoint FIFOx transmit RAM start address is word address or byte address aligned to 32-bit memory location

Re: STM32L476: OTG_FS: IN endpoint FIFOx transmit RAM start address is word address or byte address aligned to 32-bit memory location

Re: STM32L476: OTG_FS: IN endpoint FIFOx transmit RAM start address is word address or byte address aligned to 32-bit memory location

Re: USB OTG_FS (device mode) CDC-ACM: IN endpoint transfer complete interrupt never fires after sometime with STM32F411/STM32F413