sami

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Everything posted by sami

  1. @tparys what circuit are u supposing to use instead of converting to rs232? what i understood is that ur saying from rs485 direct the tx pin to an RX pin on a circuit that i should design? then i can read all the bits being received by configuring this circuit to the wanted baudrate and what so ever.
  2. i still have another major problem ... the baudrate is unknown ... is there any tool that can ignoring setting a baudrate or that can dynamically assign the correct baudrate. i observed the signal on the oscilloscope and it seems that the baudrate is around 12800 which is not one of the standard baurates. and the baudrate is around 12800 might be because this serial data is converted from rs485 to rs232. it is confusing
  3. trying to read the serial data from the UART1 port then write it on the UART2 port .... this is absolutely easy in the case of just reading the serial data. but now what m really trying to do is to read the serial binary bits which includes the serial data and the framing data ( parity bit/stop bit/start bit) and then write all of these binary bits to the other serial port. how could this be done? how could i read the serial bits without the framing bits being stripped? thanks in advance best regards
  4. https://wiki.freepbx.org/display/FOP/Installing+FreePBX+15+on+Debian+9.6 would this work on nanopi neo core? if yes then what is the operating system(debian 9.6) that i should install? it would be great if there is a link.
  5. This is the image i downloaded from freepbx https://www.freepbx.org/downloads/ you could view all versions to check the iso images available. so this image contains freepbx with asterisk. i want to install this image on my nanopi neo core but i am afraid if it wont work. for more information about this operating system at my pc : command: cat /etc/os-release output: NAME="Sangoma Linux" VERSION="7 (Core)" ID="sangoma" ID_LIKE="centos rhel fedora" VERSION_ID="7" PRETTY_NAME="Sangoma Linux 7 (Core)" ANSI_COLOR="0;31" CPE_NAME="cpe:/o:sangoma:sng:7::server:utf8" HOME_URL="https://distro.sangoma.net/" BUG_REPORT_URL="https://issues.sangoma.net/" CENTOS_MANTISBT_PROJECT="Sangoma-7" CENTOS_MANTISBT_PROJECT_VERSION="7" REDHAT_SUPPORT_PRODUCT="sangoma" REDHAT_SUPPORT_PRODUCT_VERSION="7" command: hostnamectl output: Static hostname: freepbx.sangoma.local Icon name: computer-laptop Chassis: laptop Machine ID: b230bc99e3f54757988c502759a40135 Boot ID: e7f281a29a2d47daa7c82fc79d4302a2 Operating System: Sangoma Linux 7 (Core) CPE OS Name: cpe:/o:sangoma:sng:7::server:utf8 Kernel: Linux 3.10.0-1127.19.1.el7.x86_64 Architecture: x86-64 so does this kind of linux images work on nanopi neo core or not ?
  6. THANKS !!! now I have this image on my pc but how could I write this image to the nanopi neo core without using sd card ? tried connecting it directly through micro usb cable but it was not observed as a usb device it was only observed as a port ! so I could not just simply write it through win32 disk imager. is it something related to FEL MODE ? and how to check if board supports this mode?