TMS570LS1224: MIBSPI and shutdown signal

Sakthi Sundaram

Part Number: TMS570LS1224
Other Parts Discussed in Thread: HALCOGEN,

I am using TMS570LS1224 and configure with HalCogen , CCS.

How to get the Shutdown (SD) signal as shown in the picture with right timings with Halcogen and CCS?

tSDLCSL, tCSHSDH - timings

over 4 years ago

0 QJ Wang over 4 years ago

Hi,

SD is not SPI signal. If it is a output signal, you use GIO or NHET to generate SD signal for the external device.

You need to insert this delay manually.

0 Sakthi Sundaram over 4 years ago in reply to QJ Wang

Can it be done without doing manually?

Actually, I need to make SD signal high after the transmission of data from SDI. How can I achieve it?

0 QJ Wang over 4 years ago in reply to Sakthi Sundaram

No, SPI module is not able to control other pin's action for example a GIO pin. if you use a GIOA[0] for SD:

0. Configure GIOA[0] as OUTPUT

1. Pull GIOA[0] LOW

2. call SPI transmit Function: spiTransmitData(...)

3. Pull GIOA[0] High

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