Author |
Message |
Topic: SPI Slave Select Pin |
Paul Raine
Replies: 8
Views: 11455
|
Forum: General CCS C Discussion Posted: Mon Jul 03, 2006 1:02 am Subject: SPI Slave Select Pin |
After more testing into the problem, and hunting around the Microchip website, I've come to the conclusion that the problem is hardware and nothing to do with software. Microchip errata "SSP Module S ... |
Topic: SPI Slave Select Pin |
Paul Raine
Replies: 8
Views: 11455
|
Forum: General CCS C Discussion Posted: Fri Jun 30, 2006 4:11 am Subject: SPI Slave Select Pin |
Thanks for your responses. I've distilled the code down to the bare minimum to try and remove any possible interactions with other functions. Basically, if I use SPI_SS_DISABLED, the code receives t ... |
Topic: SPI Slave Select Pin |
Paul Raine
Replies: 8
Views: 11455
|
Forum: General CCS C Discussion Posted: Fri Jun 30, 2006 1:41 am Subject: SPI Slave Select Pin |
The PIC is 1 of 4 slave devices on the SPI bus, controlled by a Coldfire processor. Each device is addressed using an individual chip select line. If I use a software defined pin for selecting the P ... |
Topic: SPI Slave Select Pin |
Paul Raine
Replies: 8
Views: 11455
|
Forum: General CCS C Discussion Posted: Thu Jun 29, 2006 7:40 am Subject: SPI Slave Select Pin |
Hi,
Does anyone have any tips on using the Slave Select pin when using SPI comms. If I use a 'soft' chip select, I correctly receive the data sent to the PIC. However, this causes problems with t ... |
Topic: I2C Slave on PIC18F4431 |
Paul Raine
Replies: 7
Views: 7863
|
Forum: General CCS C Discussion Posted: Thu Jun 29, 2006 7:22 am Subject: I2C Slave on PIC18F4431 |
I used the following configuration
#use I2C (SLAVE, SDA=PIN_C4, SCL=PIN_C5, ADDRESS=0x04, FORCE_HW, FAST = 1000000)
and then the standard CCS functions in the interrupt i.e i2c_isr_state ... |
Topic: I2C Slave on PIC18F4431 |
Paul Raine
Replies: 7
Views: 7863
|
Forum: General CCS C Discussion Posted: Wed Jun 07, 2006 3:46 am Subject: I2C Slave on PIC18F4431 |
I have my version of EX_SLAVE.c working now, so thanks for all your help. |
Topic: I2C Slave on PIC18F4431 |
Paul Raine
Replies: 7
Views: 7863
|
Forum: General CCS C Discussion Posted: Tue Jun 06, 2006 8:10 am Subject: I2C Slave on PIC18F4431 |
Hi,
I am trying to get a PIC18F4431 to be a slave device. However, I cannot get it to respond to messages sent over the bus. I have regressed to to using a modified EX_SLAVE.c file (only changed ... |
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