Spirit SP1ML internal schematic

argonnedroid · ‎2016-01-10

Posted on January 10, 2016 at 15:06

I'm developing a custom firmware for SP1ML but I miss important info regarding connections between the STM32L151RB and the SPIRIT chips.

Analysing the firmware loaded on the SP1ML, I understood that:

PA5 ------> SPI1_SCK

PA6 ------> SPI1_MISO

PA4 ------> SPI1_NSS

PA7 ------> SPI1_MOSI PA1 ------> SPIRIT_SDN

But I fail to understand how the 4 different IRQ pins of the SPIRIT are connected to the STM32L151RB. I guess that an IRQ is connected to PC4 but I don't know the corresponding IRQ line on the SPIRIT.

Regards,

Dario

#sp1ml-spirit1-stm32l151rb

paussems · ‎2016-03-07

Posted on March 07, 2016 at 23:09

Hi Dario,

Have you been able to find out more about the connections between the STM32 and the SPIRIT1? I'm interested in your findings because like you I would like to run my own custom firmware inside the SP1ML module.

Best regards,

Patrick

Uwe Bonnes · ‎2016-03-11

Posted on March 11, 2016 at 12:30

Ask an ST FAE about ''SP1ML detailed presentationV2.1.pdf''. As the section contaiming internal connections is labeled:

''SP1ML OpenPlatform Â Optimized use cases'',

I hope it is okay to give out the pin list. Please excuse eventual trancription errors.

1/TXRXLED=PA2

2/SHDN=PA0

3/GPIO0=PB15

4/GPIO1=PB14

5/MODE0=PB13

6/MODE1=PB12

9/SWDIO=PA13

10/SWCLK=PA14

11/BOOT0=BOOT0

12/RESET=NRST

13/TXD=PA9

14/RXD=PA10

15=PB6

16=PB7

SPIRIT/SDB= PA1

SPIRIT/CS = PA4

SPIRIT/SCLK=PA5

SPIRIT/MISO=PA6

SPIRIT/MOSI=PA7

SPIRIT/GPIO0=PC4

SPIRIT/GPIO2=PC5

SPIRIT/GPIO1=PB11

paussems · ‎2016-03-12

Posted on March 12, 2016 at 21:02

Thanks a lot Uwe!

Zoran Najdovski · ‎2017-02-22

Posted on February 23, 2017 at 03:31

Hi All,

Anyone know if PB6 and PB7 will work for I2C on custom firmware for the module? Would like to interface a humidity/temp sensor to this module. The STM32L151RB datasheet specifies these as I2C.

Cheers,