TMS570LC4357: TMS570LC4357

Mohamed AbdelGhafar

Part Number: TMS570LC4357
Other Parts Discussed in Thread: HALCOGEN

SPI configurations for TMS570LC43x, after making all configurations on Halcogen using SPI2 as Master and SPI3 as Slave,

Then start to send and get data from the 2 SPIs in the same launchpad with connecting MibSPI2SIMO to MibSPI3SOMI, MibSPI2CLK to MibSPI3CLK & MibSPI2SOMI to MibSPI3SIMO,

and start to use functions SpiSendData and SpiGetData in a while(1) loop, the spiTransmitstatus is always pending.

I checked the Reset Pin in GCR0 and it's 1 (Out of Reset)

also the SPIEN Enable pin in GCR1 is 1 (Activate SPI).

Any help in why the SPI is always pending ?

over 6 years ago

0 Miro over 6 years ago

TI__Mastermind 21425 points

Hello,
MibSPI2SIMO pin has to be connected to MibSPI3SIMO (Slave In Master Out). MibSPI3SOMI has to be connected to MibSPI2SOMI (Slave Out Master In).
If you are not going to use CS and ENA pins - make them not functional (GIO).

Best regards,
Miro

0 Mohamed AbdelGhafar over 6 years ago in reply to Miro

Prodigy 60 points

After doing the right connections still no data is sent, Clk is not generated on the PIN at all

0 Mohamed AbdelGhafar over 6 years ago in reply to Mohamed AbdelGhafar

Prodigy 60 points

When I connect MibSPI2SIMO to PIN MibSPI3SIMO, a reset is happened on the Micro

0 Miro over 6 years ago in reply to Mohamed AbdelGhafar

TI__Mastermind 21425 points

Hello,
SpiSendData and SpiGetData are using interrupt method for sending/receiving data. You have to enable interrupt in SPI2 and SPI3 tabs and SPI2 and SPI3 interrupts in VIM module?
Could you attach HALCoGen project files *.hcg and *.dil?

Best regards,

MIro

0 Mohamed AbdelGhafar over 6 years ago in reply to Miro

Prodigy 60 points

Hello,

Kindly find attached .hcg and .dil file for my projecthttps://e2e.ti.com/cfs-file/__key/communityserver-discussions-components-files/312/2728.SPI.7z

0 Miro over 6 years ago in reply to Mohamed AbdelGhafar

TI__Mastermind 21425 points

Hello,
You have enabled drivers for SPI in multi-buffered mode - MIBSPI1..5. In this case SpiSendData and SpiGetData are not the functions that are to be used.
You can use the example code that is under HALCoGen folder as a reference.
In HALCoGen Help->Help Topics->Examples->example_mibspi_loopback.c (or some of the other examples for mibspi) you can find how to setup and use SPI in MIBSPI mode.

Best regards,
Miro

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TMS570LC4357: TMS570LC4357