i 'm looking at* hm2_uart_setup,* the rx_mode describe:
* Bit 0* = FalseStart bit Status, 1 = false start bit detected
*Bit 1* = OverRun Status, 1 = overrun condition detected (no valid
stop bit)
*Bit 2* = RXMaskEnable, 1= enable RXMask for half duplex operation,
0 = ingore RXMask
*Bit 4* = FIFOError, indicates that a host read has attemped to read
more data than available. (mainly for driver debugging)
*Bit 5* = LostDataError, indicates that data was received with no
room in FIFO,
* Bit 6* = RXMask, RO RXMASK status
* Bit 7* = FIFO Has Data
I'm not very clearly understand when i read it,i dont see how to clear FIFO
or disable RX from these 7 bits. I guess u mention pktuart, right?
2018-03-22 0:28 GMT+07:00 Peter C. Wallace <p...@mesanet.com>:
> On Wed, 21 Mar 2018, Th?ng L? wrote:
>
> Date: Wed, 21 Mar 2018 15:20:12 +0700
>> From: "[UTF-8] Th?ng L?" <lethang12...@gmail.com>
>> Reply-To: EMC developers <emc-developers@lists.sourceforge.net>
>> To: EMC developers <emc-developers@lists.sourceforge.net>
>> Subject: Re: [Emc-developers] writing new firmware to read yaskawa
>> absolute
>> encoder
>>
>> i'm using mesa_uart to read serial data but i have a issue. Sometimes,
>>
> after sending 8 bytes, the phase A isnt come back idle state-5V state (it
> keeps 0V state). This mean uart is still getting data after first 8
> bytes,then
> the UART data shows me rx-bytes = 16, all rx-data = 0.
>
>
>
>
>
> Is mesa_uart posible to limit the number bytes UART read?
>
>
> No, but this is expected if the input is driven low after the data
> you must only clear the UART/FIFO when the data line is idle
>
> You can disable RX if you know when the input data will become invalid
>
> (you would also expect to see the framing error bit set in this
> circumstance)
>
>
>
> 2018-03-16 23:52 GMT+07:00 Peter C. Wallace <p...@mesanet.com>:
>
> On Fri, 16 Mar 2018, Th?ng L? wrote:
>>
>> Date: Fri, 16 Mar 2018 23:43:49 +0700
>>
>>> From: "[UTF-8] Th?ng L?" <lethang12...@gmail.com>
>>> Reply-To: EMC developers <emc-developers@lists.sourceforge.net>
>>> To: EMC developers <emc-developers@lists.sourceforge.net>
>>> Subject: Re: [Emc-developers] writing new firmware to read yaskawa
>>> absolute
>>> encoder
>>>
>>> ah, i understood what you mean. thank you very much
>>>
>>>
>> 2018-03-16 23:30 GMT+07:00 andy pugh <bodge...@gmail.com>:
>>
>> On 16 March 2018 at 16:27, Thÿÿÿÿng Lÿÿÿÿ <lethang12...@gmail.com> wrote:
>>
>>> > this is a great idea but how can i right-shift the data? Both your way
>>> and
>>> > Peter's way seem have to touch UART source
>>>
>>> No, you can shift the raw data in the HAL component that interprets the
>>> data.
>>>
>>> --
>>> atp
>>> "A motorcycle is a bicycle with a pandemonium attachment and is
>>> designed for the especial use of mechanical geniuses, daredevils and
>>> lunatics."
>>> ÿÿÿÿ George Fitch, Atlanta Constitution Newspaper, 1916
>>>
>>>
>> Actually theres no shifting involved, only manipulating bit 7 of the
>> 8 bit data
>>
>> Peter Wallace
>> Mesa Electronics
>>
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>>
>>
>
> --
> Lÿÿ Thÿÿÿÿng
> Phone: (+84) 1222443855
> Email: lethang12...@gmail.com
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> ------------------
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> Peter Wallace
> Mesa Electronics
>
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--
Lê Thắng
Phone: (+84) 1222443855
Email: lethang12...@gmail.com
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