About gmgunderground

gmgunderground · 2015-11-19

Posted on November 19, 2015 at 12:21Hi, I have generated a basic project with STM32Cube. the 1st step is to make USB working as COM Port. I have made some tests and the communication from STM32 and PC is working I can send data, but if I try to send...

gmgunderground · 2015-11-15

Posted on November 15, 2015 at 22:14I want to develop a JTAG interface using STM32F103. One way is to use GPIO to drive/read the signals, another way is to use SPI, but unfortunately TMS signal is not present. Is there a way to use SPI and simulate ...

gmgunderground · 2015-11-19

Posted on November 19, 2015 at 18:04 Solved, the solution for everyone and a suggestion to STM32Cube team Original function: int8_t CDC_Receive_FS (uint8_t* Buf, uint32_t *Len) { /* USER CODE BEGIN 6 */ return (USBD_OK); /* USE...

gmgunderground · 2013-03-28

Posted on March 28, 2013 at 19:21After setting correctly the clock of APB2 and fixed some initialization issues, now I can write MicroSD at 7.2MB/s with FATFS!!! Incredibly fast! Next step is to try in bypass mode... someone has experience ?

gmgunderground · 2013-03-27

Posted on March 27, 2013 at 23:07I think if the clock on CLK line is 24MHz misured with the scope all is OK, the problem I think is the DMA performance, is right ?

gmgunderground · 2013-03-27

Posted on March 27, 2013 at 22:50Can you attach your code to the post ?best regards

gmgunderground · 2013-03-27

Posted on March 27, 2013 at 21:41 Hi, can you post a link to your test project? Is very interesting transfer rate (MB == MegaByte ??). I have made a test to write linear blocks in DMA without FileSystem and in 1s I can only write 160/180 KByt...

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STM32Cube USB VCP on STM32F103C8 crash problem

JTAG Interface using a STM32F103

Re: STM32Cube USB VCP on STM32F103C8 crash problem

Re: SDIO and SD fat access example?

Re: SDIO and SD fat access example?

Re: SDIO and SD fat access example?

Re: SDIO and SD fat access example?