Hello Cis van Mierlo, THe BCC driver software package as the link below has TPL communication based on DMA mode, whereas the Nuttx SPI drivers are in non DMA mode. We tried extending this to TPL mode in Nuttx in Non DMA mode. But currently we are facing some synchronization issues, want to get your comment on whether TPL mode driver can be built for Non DMA mode.
OR DMA mode is the only option for TPL mode as given in the reference driver below. In Non DMA mode make sure that receive SPI is setup & ready to receive the echo frame & the receive response before initiating the Transmit. What we are noticing is that on the Receive though we are able to receive the echo frame but its not synchronized and also some data is missing. Please advise. Regards, Sathish On Wed, 1 Sept 2021 at 13:32, Cis van Mierlo <cis.van.mie...@nxp.com> wrote: > Hi Sathish, > > > > We currently do not use TPL in NuttX for our example application. > But this can easily be adopted. > > Bare metal example code and drivers for the BCC (MC3377xx), including SPI > transfers for TPL communication can be found on the NXP website. > > https://www.nxp.com/design/analog-expert-software-and-tools/sdk-analog-expert-drivers/embedded-sw-battery-cell-controller-software-driver-for-mc33771b-mc33772b:EMBEDDED-SW-BCC?tab=Design_Tools_Tab > > You could add this to your application and together with the NuttX SPI > drivers. > > For an example on how to do that, you could check the BMS772 example > software at https://github.com/NXPHoverGames/RDDRONE-BMS772/. > > This example software communicates using an S32K144 to a single MC33772 > BCC using SPI. > > > > Kind regards, > > > > Cis van Mierlo > Systems & Applications Engineer > > NXP Semiconductors, CTO Systems Innovations > > > High Tech Campus 46, room 0.64, 5656 AE Eindhoven, The Netherlands > E-mail: cis.van.mie...@nxp.com > Internet: http://www.nxp.com > > > > *From:* Sathish Touch energy <sath...@touchenergy.in> > *Sent:* Saturday, August 28, 2021 4:09 AM > *To:* dev@nuttx.apache.org > *Cc:* Peter van der Perk <peter.vanderp...@nxp.com>; Cis van Mierlo < > cis.van.mie...@nxp.com> > *Subject:* [EXT] Re: TPL support in nuttx for daisy chain battery cell > monitoring? > > > > *Caution: *EXT Email > > Hi Alan, > > > > Thanks for your quick response. > > > > Yes. It requires TWO SPI WORKING at the same time. > > > > Hi Peter and Cis, > > > > Do we have TPL code in nuttx for daisy chain battery cell monitoring? > > > > or how do we proceed into the nuttx porting work from the TPL code > available at > > > https://community.nxp.com/t5/NXP-Model-Based-Design-Tools/BMS-amp-MBDT-MC33771B-MC33772B-TPL-communication-with-S32K/ta-p/1153459 > <https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fcommunity.nxp.com%2Ft5%2FNXP-Model-Based-Design-Tools%2FBMS-amp-MBDT-MC33771B-MC33772B-TPL-communication-with-S32K%2Fta-p%2F1153459&data=04%7C01%7Ccis.van.mierlo%40nxp.com%7Cc600678a468349aabd6108d969c8e03b%7C686ea1d3bc2b4c6fa92cd99c5c301635%7C0%7C1%7C637657133744970671%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=CIif1V4IgcbF6rPvU8DAlLkaVWjvhPJVo8vYGxbF88w%3D&reserved=0> > > > > Thanks and Regards, > Sathish. > > > > > > On Sat, 28 Aug 2021 at 01:10, Alan Carvalho de Assis <acas...@gmail.com> > wrote: > > Hi Sathish, > > I think it will need the driver for MC3377x or similar battery monitor > chip: > > > https://community.nxp.com/t5/NXP-Model-Based-Design-Tools/BMS-amp-MBDT-MC33771B-MC33772B-TPL-communication-with-S32K/ta-p/1153459 > <https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fcommunity.nxp.com%2Ft5%2FNXP-Model-Based-Design-Tools%2FBMS-amp-MBDT-MC33771B-MC33772B-TPL-communication-with-S32K%2Fta-p%2F1153459&data=04%7C01%7Ccis.van.mierlo%40nxp.com%7Cc600678a468349aabd6108d969c8e03b%7C686ea1d3bc2b4c6fa92cd99c5c301635%7C0%7C1%7C637657133744980661%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=uJOSMRo3BvVqoV92zmOQZt9IYRrtps%2BdH0oG4ZY%2FNAs%3D&reserved=0> > > If I read it correctly it will require two SPIs working at same time > to support TPL. > > I'm CC Peter and Cis, they are the guys working on it and could give > us more info. > > BR, > > Alan > > On 8/27/21, Sathish Touch energy <sath...@touchenergy.in> wrote: > > Hi, > > > > I am using nuttx, with an S32K144 eval board. > > > > nuttx supports SPI driver for battery cell monitoring. > > > > In the same way, is there TPL support in nuttx for daisy chain battery > cell > > monitoring? > > > > Thanks and Regards, > > Sathish. > > > >
