About SNata.1

SNata.1 · 2020-12-01

Is there anyway we can decrease this time. We are using void DMA2_Channel2_IRQHandler(void) and void DMA2_Channel1_IRQHandler(void). Both RX and Tx callbacks are not firing and really not able to debug this issue. Looking forward to a solution. ...

SNata.1 · 2020-12-01

If we change any value above from 512, the USB device is not recognized. PC cannot recognize our module.

SNata.1 · 2020-12-01

Thanks. We will try and update on the results.

SNata.1 · 2020-12-01

it is USB MSC only. We declared our own variable for packet size as 512 bytes. HAL_SPI_Receive_DMA(&heval_Spi3, buf, USB_BLK_SIZ); declared USB_BLK_SIZ as 0x200

SNata.1 · 2020-12-01

Hi Clive1, Thanks. Actually transmission happens without an issue. We are able to copy files from device to PC and vice versa. The problem is the timing. How to improve or reduce cycle time. We are reading 512 bytes per read, so for a 4096 bl...

SNata.1 · 2020-12-01

HI, Thanks for the quick reply. It is USB HS. STM32L151VEYx MCU. Device is a datalogger board, designed and fabricated by us.

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Hi Everyone, Weare working on a project where using SPI3 with DMA to communicate with flash. The problem we are facing is when copying a file from our module to PC, (file size is around 130 MB), it takes almost 14 minutes to complete the transfer.

Re: Hi Everyone, Weare working on a project where using SPI3 with DMA to communicate with flash. The problem we are facing is when copying a file from our module to PC, (file size is around 130 MB), it takes almost 14 minutes to complete the transfer.

Re: Hi Everyone, Weare working on a project where using SPI3 with DMA to communicate with flash. The problem we are facing is when copying a file from our module to PC, (file size is around 130 MB), it takes almost 14 minutes to complete the transfer.

Re: Hi Everyone, Weare working on a project where using SPI3 with DMA to communicate with flash. The problem we are facing is when copying a file from our module to PC, (file size is around 130 MB), it takes almost 14 minutes to complete the transfer.

Re: Hi Everyone, Weare working on a project where using SPI3 with DMA to communicate with flash. The problem we are facing is when copying a file from our module to PC, (file size is around 130 MB), it takes almost 14 minutes to complete the transfer.

Re: Hi Everyone, Weare working on a project where using SPI3 with DMA to communicate with flash. The problem we are facing is when copying a file from our module to PC, (file size is around 130 MB), it takes almost 14 minutes to complete the transfer.