Bryan Duke <[email protected]> writes: > Reviving this thread… > > I’m starting my hacking to get the TeleMini v3 to read an external > u-blox GPS. I’m doing serial port config stuff. It looks like I have > to set a few things in ao_pins.h, but I’m not sure which serial 1 > settings the TeleMini needs. I’m guessing PA9/PA10 is the right serial > 1 setting. (Although AO_PA11_PA12_RMP is defined in the USB section.) > Does this look right?
So, PA11_PA12_RMP means that the pins labeled PA9/PA10 are actually hooked to PA11/PA12. You'll have to turn that off, at which point you might as well disable USB as it won't be hooked up to anything (although disabling USB would take a bit of hacking, and you may not want to do that yet). > #define USE_SERIAL_1 > #define USE_SERIAL_1_STDIN 0 > #define SERIAL_1_PB6_PB7 0 > #define SERIAL_1_PA9_PA10 1 This looks good. > If it needs PA11 & 12, I don’t see those defined in > ao_serial_stm.c. I’m guessing that would look like the PA9 & 10 chunk > of code except with 11 & 12 (gpioa & STM_AFR_AF1). ? You'll want to use the PA9_PA10 setting and turn off the PA11_PA12_RMP so that you actually have live PA9_PA10 pins. Note that you'll still be able to get to the USB boot loader by hooking pins 3 and 5 of the debug connector together at power on. Alternatively, you can obviously load the firmware with any swd utility, you just won't get the serial number set correctly (as that is in the firmware and re-written during the flash process by ao-usbload or altosui). -- -keith
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