Posted on July 10, 2011 at 19:37Hi
I use UM0424 ST library to connect my STM32F103 with computer. I want send 3 bytes data (normally they send 2 bytes from ADC). I change wMaxPacketSize in ''Descriptor of Custom HID interface'' but when I try send 3 bytes instead 2 my communication hangs.
This is my send code:
if(PrevXferComplete)
{
Send_Buffer_[0] = 0x07;
Send_Buffer_[1] = high_sample;
Send_Buffer_[2] = low_sample;
UserToPMABufferCopy(Send_Buffer_, ENDP1_TXADDR, 3);
SetEPTxCount(ENDP1, 3);
SetEPTxValid(ENDP1);
PrevXferComplete=0;
}
could someone help me with this problem ?
Kamil
#stm32-usb-hid-communication
