About jsi

jsi · 2015-01-18

Posted on January 18, 2015 at 12:11Hello.I am use example VCP from the ST. on STM32f405I am working under WinXP with a virtual COM port via the API as a file.Cyclically sends data (short packets from 8 to 16 bytes) from PC to Device by function - Wr...

jsi · 2014-05-19

Posted on May 19, 2014 at 22:52Hi I made VCP from ST sample on ST32F405 (STM32_USB-Host-Device_Lib_V2.1.0 & DriverVer=04/25/2010,1.3.1) When I send data from CPU to PC less than 64 byte, all work fine. I have 2 problems: 1) When I try send data from...

jsi · 2014-04-18

Posted on April 18, 2014 at 22:04Hi I configured the timer in encoder mode with prescaler:RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM1, ENABLE); RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA, ENABLE); GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8 | GPIO_P...

jsi · 2014-05-20

Posted on May 20, 2014 at 12:02Hi sung.chen_chung Thanks for answer. Yep, I try send data that: //every 1ms loading 650 byte for( i = 0; i < 650; i++ ) { APP_Rx_Buffer[APP_Rx_ptr_in++] = i; if(APP_Rx_ptr_in == APP_RX_D...

jsi · 2014-04-29

Posted on April 29, 2014 at 10:54Hi clive1 What mean content of the divider is indeterminate? Encoder does work properly if prescaler = 0 or 2 or 4 or 6 and ect.. and not work correct if 1,3,5,7... ect. I think divider for encoder it is standart t...

jsi · 2014-04-24

Posted on April 24, 2014 at 21:56I can't see problem in my code. So maybe this is bug in TM32f405? In normal CNT of TIMER must not make increment count, when only one phase (A) is connect and (B) phase of encoder is not connected. But if prescaler ...

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