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STM32L152VBT6 SPI1 interface (to TI CC1101) restart problem.

Question asked by choi.ick_sung on Jul 11, 2013

Dear experts.
I am developing RFID reader/tag using STM32L152VBT6 and TI CC1101 using SPI1 interface.

I would like to stop and to restart SPI1 interface to CC1101.
I used the following codes.
The SPI1 interface stops successfully when I call  BSP_433_Stop ().
However when I call BSP_433_Start(), I can't receive packets from CC1101 through SPI1 interface.

void BSP_433_Start (void) {    SPI_Cmd(SPI1, ENABLE);  }

void BSP_433_Stop (void) {    SPI_Cmd(SPI1, DISABLE);  }

I tried to reinitialize the SPI1 interface when I restart SPI1 interface as follows.
In this case, I can't receive packets from CC1101 through SPI1 interface too.

void BSP_433_Start       (void)
 {    SPI_CC1101_Init();        SPI_Cmd(SPI1, ENABLE);  }

I will appreciate to you if I can be given any suggestion & advices.
Thank you very much in advance.

Sincerely Yours,
Ick-Sung Choi.