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From: | Gautier Hattenberger |
Subject: | Re: [Paparazzi-devel] Futaba SBUS through R/C connector on Umarim |
Date: | Sun, 14 Jun 2015 10:23:17 +0200 |
User-agent: | Mozilla/5.0 (X11; Linux i686; rv:31.0) Gecko/20100101 Thunderbird/31.7.0 |
Hi, If plan to use an UART input for SBUS, you'll also need to invert the signal (the SBUS signal is not a standard serial: different idle level, unusual baud rate), and as you figured it, there is only two UART on Umarim board. An no easy solution: - fix the gps-i2c driver if you are using an ublox gps. - implement gpio based (probably better use the input capture pin (PPM)) to read the signal by hand (benefit is that you don't need the inverter, but it will generate a lot of interrupts). - write an spi driver for XBee. - use an Apogee board (unfortunately a bit difficult to find these days... ). Gautier Le 13/06/2015 23:58, Joseph Muhlhausen
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