topic Re: SPI Slave configuration in LPC Microcontrollers

SPI Slave configuration

jinu_mohan — Mon, 06 Jun 2022 12:03:14 GMT

Hi ,

im using LPC xpresso55S28 board configured Flexcom 7 as spi master .

i need to control 4 slave devices in SPI im not able to create 4 chipselect in IDE pinmuxing tool

is that possible to create 4 chip select option in LPC xpresso55S28

@Alice_Yang

Re: SPI Slave configuration

Badman — Tue, 07 Jun 2022 20:10:19 GMT

I don't know how many controllers lpc has SPI. You can use software ChipSelect using GPIO.

Re: SPI Slave configuration

Pavel_Hernandez — Wed, 08 Jun 2022 15:12:25 GMT

Hello,

I checked the Datasheet, and this mentions the following.

Up to Four Slave Select input/outputs with selectable polarity and flexible usage

I reviewed the Datasheet in the pinout has SPI Slave Select 0/1/2/3, I recommend using the MCU config tool to set this more easily. If you need more information please let me know.

Best regards,
Pavel

Re: SPI Slave configuration

Pavel_Hernandez — Fri, 01 Jul 2022 21:36:07 GMT

Hello,

I created a case to continue to help you, 00475476, If you need more information I will contact you in the other case.

Best regards,
Pavel