Provided by: ax25-tools_0.0.10-rc4-3_amd64
dmascc_cfg - Configure dmascc devices
dmascc <interface> [<options>]
dmascc_cfg is used to configure dmascc devices such as PI2 and PackeTwin cards. The --show option can be used by any user, all other options must be used by root.
--speed frequency Set frequency of baud rate generator to frequency. A value of 0 disables the baud rate generator and the digital PLL. Use the --show option to check whether the frequency you selected could be approximated with sufficient accuracy. --nrzi [0|1] 0 selects NRZ mode, 1 selects NRZI mode. --clocks integer Set the clock mode. You may OR together three choices (other values are not supported and may cause strange results). TX clock pin: 0x00 input 0x05 output TX clock * 0x06 output baud rate generator * 0x07 output digital PLL * TX clock source: 0x00 RX clock pin 0x08 TX clock pin # 0x10 baud rate generator 0x18 digital PLL + RX clock source: 0x00 RX clock pin 0x20 TX clock pin 0x40 baud rate generator 0x60 digital PLL + * Not allowed on PI2 Port A if J3 is installed. # TX clock pin must be configured as input. + Speed must be equal to 32 times the baud rate. --txdelay milliseconds Set transmit delay to milliseconds. Maximum is 2500 ms. --txtime seconds Set maximum time the transmitter may be active to seconds. --sqdelay milliseconds Set the squelch delay to milliseconds. Maximum delay is 2500 ms. --slottime milliseconds Set the slot time to milliseconds. Maximum slottime is 2500 ms. --waittime milliseconds Set the minimum time between the transmitter turning off to when it turns on to milliseconds. Maximum wait time is 2500 ms. --persist f Set the persistence parameter to f. Must be between 0 and 255 (inclusive). --dma channel Set the DMA channel to channel. Can be 1 or 3. Setting to 0 disables DMA.
dmascc_cfg does not check the parameters for validity. The driver or kernel may crash if you specify invalid values.
Klaus Kudielka This manual page written by Craig Small <email@example.com>