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Software => Software => Topic started by: pchan on November 29, 2009, 11:30:34 PM

Title: Blackfin camera console - cp2102
Post by: pchan on November 29, 2009, 11:30:34 PM

im trying to use the cp2102 si-labs converter, however im not having any success connecting with the blob java console, i only wired up the rx and tx lines, is cts/rts required as well for hardware flow control? has anyone else had luck with the cp2102?

Title: Blackfin camera console - cp2102
Post by: pchan on November 30, 2009, 12:14:17 AM

i grounded pin-17 on the srv-1 to disable hw flow control, this did the trick. cp2102 works with just tx/rx connected, thanks all for the info.

from uart.c line starting from 126:
 
void uart0SendChar(unsigned char c)
{
    while (*pPORTHIO & 0x0001)  // hardware serial flow control -
        continue;               //    S32 pin 17 should be grounded to disable
    while (!(*pUART0_LSR & THRE))
        continue;
    *pUART0_THR = c;
}

Title: Blackfin camera console - cp2102
Post by: hgordon on November 30, 2009, 10:14:11 AM

Exactly.  Note that pin 16 on the 32-pin header is GND, so you just need to connect pin 16 <=> pin 17 to override the hardware flow control.