TMS320C6748: MOSI pin SPI

Navaneetha Krishnan P

Part Number: TMS320C6748

Hello

I need MOSI line to remain high state before and after the data transfer. Now it is in low state when now data is transferred. How to configure this in starteware sdk in TMS320C6748.

When I configure SPIConfigClkFormat as SPI_CLK_POL_LOW | SPI_CLK_INPHASE , MOSI line is high state but I require it in SPI_CLK_OUTOFPHASE

over 7 years ago

0 Navaneetha Krishnan P over 7 years ago

Intellectual 925 points

I require to configure SPI using starterware sdk of tms320c6748 so that I can achieve SCK and MOSI timing as below image.

0 Yordan Kovachev over 7 years ago in reply to Navaneetha Krishnan P

TI__Guru**** 161600 points

Hi,

How did you configure the syscfg registers for the SPI pins?

As far as I can see SPI0/SPI1 pins are located in pin groups CP[7] through CP[15]. So have you tried setting bits 7 through 15 in Pullup/Pulldown Enable Register (PUPD_ENA) to 0x1. You should also set to 0x1 bits 7 through 15 in Pullup/Pulldown Select Register (PUPD_SEL).

Best Regards,
Yordan