On Mon, Oct 24, 2016 at 6:25 AM, P J P wrote:
> +-- On Mon, 24 Oct 2016, Alistair Francis wrote --+
> | > |
> http://www.xilinx.com/support/documentation/user_guides/ug585-Zynq-7000-TRM.pdf
> |
> | Did the TRM have enough detail for you to figure out how the hardware
> behaves?
>
> Yes, it def
+-- On Mon, 24 Oct 2016, Alistair Francis wrote --+
| > |
http://www.xilinx.com/support/documentation/user_guides/ug585-Zynq-7000-TRM.pdf
|
| Did the TRM have enough detail for you to figure out how the hardware behaves?
Yes, it defines range for 'Baud rate generator' and 'Baud rate divider'
On Fri, Oct 21, 2016 at 9:47 AM, P J P wrote:
> +-- On Thu, 20 Oct 2016, Edgar E. Iglesias wrote --+
> | The UART is described in the Zynq TRMs, I think you can just
> | google for zynq TRM and a reference to UG585 and UG1085 will come up.
>
> Unlikely for a novice to think 'zynq TRM' as search
+-- On Thu, 20 Oct 2016, Edgar E. Iglesias wrote --+
| The UART is described in the Zynq TRMs, I think you can just
| google for zynq TRM and a reference to UG585 and UG1085 will come up.
Unlikely for a novice to think 'zynq TRM' as search term for cadence UART. I
went with Xilinx Cadence UART
On Thu, Oct 20, 2016 at 11:25:47AM +0530, P J P wrote:
> +-- On Wed, 19 Oct 2016, Alistair Francis wrote --+
> | I don't think the Cadence datasheets are public. If you can't find it
> | from a simple Google search I don't think you have access.
>
> I see, okay.
>
> I think it'll greatly help i
+-- On Wed, 19 Oct 2016, Alistair Francis wrote --+
| I don't think the Cadence datasheets are public. If you can't find it
| from a simple Google search I don't think you have access.
I see, okay.
I think it'll greatly help if device emulator writers include a link to its
specification/datash
On Wed, Oct 19, 2016 at 12:11 PM, P J P wrote:
> Hello Alistair,
>
> +-- On Wed, 19 Oct 2016, Alistair Francis wrote --+
> | Generally these types of IP just say 'undefined' in invalid situations
> | like this. If that is the case we shouldn't return but just set some
> | default value and allow
Hello Alistair,
+-- On Wed, 19 Oct 2016, Alistair Francis wrote --+
| Generally these types of IP just say 'undefined' in invalid situations
| like this. If that is the case we shouldn't return but just set some
| default value and allow the other functions in the setup to continue
| on.
Coul
On Tue, Oct 18, 2016 at 8:46 PM, P J P wrote:
> +-- On Tue, 18 Oct 2016, Peter Maydell wrote --+
> | > +if (!s->r[R_BRGR] || !(s->r[R_BDIV] + 1)
> | > +|| baud_rate < (s->r[R_BRGR] * (s->r[R_BDIV] + 1))) {
> | > +return;
> | > +}
> | > ssp.speed = baud_rate / (s->r[R_B
+-- On Tue, 18 Oct 2016, Peter Maydell wrote --+
| > +if (!s->r[R_BRGR] || !(s->r[R_BDIV] + 1)
| > +|| baud_rate < (s->r[R_BRGR] * (s->r[R_BDIV] + 1))) {
| > +return;
| > +}
| > ssp.speed = baud_rate / (s->r[R_BRGR] * (s->r[R_BDIV] + 1));
| > packet_size = 1;
|
|
On 18 October 2016 at 10:47, P J P wrote:
> From: Prasad J Pandit
>
> The Cadence UART device emulator calculates speed by dividing the
> baud rate by a divider. If this divider was to be zero or if baud
> rate was to be lesser than the divider, it could lead to a divide
> by zero error. Add chec
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