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Hi!
I'm trying to use the Cypress API SPI_1_SetActiveSlaveSelect-function, on a CY8C6347BZI-BLD54 using PSoC Creator 4.2 with PDL 3.1.1.
The component name are SCB_SPI_PDL_v2_0.
When I select m_ss1 it seems to not be applied on the corresponding hardware pin.
The SPI component is located in SCB7, and the SCB7_SPI_CTRL register should be located at address 0x40680020 according to the datasheet.
After I've run the following code snippet for selecting m_ss1 (SPI1_LED_CS) I get this result in the control register:
while (SPI_1_IsBusBusy());
SPI_1_SetActiveSlaveSelect(SPI_1_SPI_SLAVE_SELECT1);
10000100 00000000 00000000 00000001
||
SSEL[0-3]
But SPI1_LED_CS does not go low when writing data to the SPI bus, strange enough.
When I disconnect SPI1_DO_CS and SPI1_LED_CS from the SPI controller and control them manually it works just as expected.
So the question is if I'm missing something here?
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Hi,
>>"But SPI1_LED_CS does not go low when writing data to the SPI bus, strange enough.
--> Can you please tell us how are you testing this? Is the SPI write does not happening? Or have you seen the scope signal of the SS line?
>>"When I disconnect SPI1_DO_CS and SPI1_LED_CS from the SPI controller and control them manually it works just as expected.
So the question is if I'm missing something here?"
--> Can you please elaborate what do you mean by "control them manually"? By disconnecting do you mean are you removing the connections of wires on the pins SPI1_DO_CS and SPI1_LED_CS?
--> Have you tested SPI_Master_polling code example from the PSoC Creator Code example section? Is it working on your board? If not, can you please test it now?
Thanks
Ganesh