Hi Marko,
I've followed what you did in the Arduino Primo bsp file to setup the UART1
pins. Looks like my project will compile without errors, But I was unable
to see anything coming over the UART1 TX. Is there a sequence that needs
to be followed when sending the data?
for example to send a blocking tx byte (with vaule "1" every second) we're
using something like this:
uart_timer_cb(struct os_event *ev) {
uart_start_tx(uart1);
uart_blocking_tx(uart1,'1');
os_callout_reset(&uart_timer, OS_TICKS_PER_SEC);
hal_gpio_toggle(LED_BLINK_PIN);
}
The gpio toggles ~ ever second so we know the timer is working. but maybe
we've forgotten something?
Thanks for the help!
- Andrew -
On Mon, Jan 30, 2017 at 4:51 PM, Andrew Tam <[email protected]> wrote:
> Thanks Marko,
>
> I think I got some of it sorted, I found the header file for the
> bitbanger uart and I think I should be good.
>
> Cheers,
>
> - Andrew -
>
> On Mon, Jan 30, 2017 at 4:43 PM, marko kiiskila <[email protected]> wrote:
>
>> Hi Andrew,
>>
>> the example is the arduino primo BSP.
>> Take a look at hw/bsp/arduino_primo_nrf52/src/hal_bsp.c, specifically
>> the setup of UART0 and UART1.
>>
>> UART0 uses HAL uart driver, while UART1 sets up bitbanger.
>>
>> > On Jan 30, 2017, at 3:21 PM, Andrew Tam <[email protected]> wrote:
>> >
>> > I'm currently looking into using the 2nd UART as well, I was doing some
>> > reading on the nrf52dk pins and looks like pins P0.22 / P0.23 / P0.24 /
>> > P0.25 could also be good options.
>> >
>> > I'm curious to know if there was some example code as to how you set
>> this
>> > up on the nrf52?
>> >
>> > Thanks,
>> >
>> > - Andrew -
>> >
>> >
>> >
>> > On Wed, Jan 11, 2017 at 10:17 AM, marko kiiskila <[email protected]>
>> wrote:
>> >
>> >> I did operate it only Arduino Primo, where the 2nd UART was my console
>> >> (or maybe it was the connection to ESP8266?).
>> >>
>> >> Looks like the pins used on that BSP are 11 and 12.
>> >> I would pick whichever is most easily accessible from the connector :)
>> >>
>> >>> On Jan 11, 2017, at 6:57 AM, David G. Simmons <[email protected]>
>> wrote:
>> >>>
>> >>>
>> >>>> On Jan 10, 2017, at 12:02 PM, marko kiiskila <[email protected]>
>> wrote:
>> >>>>
>> >>>> I’ve tested the bitbanger on nrf52 with up to 19200 as my console.
>> >>>> If I remember correctly, the hal timer used by the bitbanger was
>> running
>> >>>> at 1MHz.
>> >>>
>> >>>
>> >>> What pins on the NRF52dk are you using? The syscfg.yml has only
>> >>> UART_1:
>> >>> description: 'Bitbanger UART'
>> >>> value: 0
>> >>>
>> >>> defined for UART_1 so I'll need to configure pins for UART_0_PIN_TX
>> and
>> >> UART_0_PIN_RX:
>> >>>
>> >>> Suggestions?
>> >>>
>> >>> dg
>> >>> --
>> >>> David G. Simmons
>> >>> (919) 534-5099
>> >>> Web <https://davidgs.com/> • Blog <https://davidgs.com/davidgs_blog>
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>> >>
>> >>
>>
>>
>
