mibspi1 as slave query

richard luo

Other Parts Discussed in Thread: HALCOGEN

hi,

i am using the rm48hdk board, i use the mibspi1 as slave to transmit data,there is a strange thing,when i am not transmitting data ,it can receive data from master properly,but if i use mibspisetdata to transmit data,both the transmit and receive are incorrect,it can trigger the group complete interrupt.when the master transmit 1 byte, the slave mibspi receive ram receives 3 bytes.anybody who can help me ,thank you

over 9 years ago

0 Vineeth Thomas Alex over 9 years ago

TI__Intellectual 1855 points

Hi Richard,

Are you using HALCoGen drivers? Can you give more details about your setup?

Regards,
Vineeth

0 richard luo over 9 years ago in reply to Vineeth Thomas Alex

Prodigy 90 points

i have used halcogen to generate the spi driver,i set group 0 to send and receive data,uncheck the master and clock bit,charlen is 8 bit,word length is 128,the others is default value,sorry , i cann't upload my project,my working computer is not connected to the internet,can you give me a 8 bit spi transfer example as slave,thank you very much!

0 Vineeth Thomas Alex over 9 years ago in reply to richard luo

TI__Intellectual 1855 points

Hi,

You can try the attached HALCoGen SPI example. It demonstrates communication between SPI1(as Master) and SPI2(as Slave).

Regards,
Vineeth

8030.example_spi_Master_Slave.c

0 richard luo over 9 years ago in reply to Vineeth Thomas Alex

Prodigy 90 points

this is my project,when i am not using the mibspisetdata(),i can receive the data from the master,if i add the mibspisetdata(),the transmit and receicve are both incorrect,in the first picture,i use the mibspisetdata(),in the second picture,i am only receive data from the master