Post Created date
lwIP Raw TCP Data Transmission
Bit of an update. I've got the lwIP stack setup and running on my SAME70 Xplained board, with a crossover ethernet cable connecting it to a computer. I'm now able to make use of...
Saturday, 18 April 2020 - 20:06
SAME70 Timer Capture Issues
Thanks again Kartman.   I've done exactly as you've suggested, and set up a spare GPIO as an output, and matched the input signal (i.e. read PA5 in the ISR and set the output...
Thursday, 26 March 2020 - 20:59
SAME70 Timer Capture Issues
I appear to be going backwards. These timing numbers are making no sense. I've deleted both the RC compare and overflow interrupt approaches, and have gone back to absolute basics...
Thursday, 26 March 2020 - 02:45
SAME70 Timer Capture Issues
I've managed to get tc_Count to continue incrementing with higher input frequencies, but I don't entirely understand why. The interrupt priority for PIOA was originally set to 0;...
Wednesday, 25 March 2020 - 22:42
SAME70 Timer Capture Issues
Thanks Kartman, your input is appreciated as always. I confused the issue by using the term 'capture', as I'm not using the inbuilt capture hardware, simply trying to measure the...
Wednesday, 25 March 2020 - 21:42
SAME70 Timer Capture Issues
Giving this some further thought, I'm wondering if rather than using the RC compare approach I'd be better off using an interrupt on overflow, then read the value of RC on...
Wednesday, 25 March 2020 - 05:30
Unable to ioport_set_pin_level for specific pins
Lars you are a gentleman and scholar. I'm not sure how I missed that! I've added the below in my init.c and I'm now able to toggle PD4/PD5 :)   MATRIX->CCFG_SYSIO |=...
Thursday, 7 November 2019 - 23:25
Unable to ioport_set_pin_level for specific pins
I think I've found the problem. I've studied my schematics and layout once again, and it would appear that I've got the footprint for the connected IC backwards :/ I wish...
Thursday, 7 November 2019 - 20:32
Unable to ioport_set_pin_level for specific pins
Hi Lars,   Thanks again for your help. I'm running this on my own board. I had initially tried using the Xplained board setup in Atmel Studio, but found it hard to traverse...
Thursday, 7 November 2019 - 19:28
Shifting data from SAME70 via TWIHS
Well I think I've arrived at the inevitable conclusion. I'm not going to be able to use TWIHS for this purpose, no matter how much I butcher the standard operating procedure....
Thursday, 7 November 2019 - 03:36
Shifting data from SAME70 via TWIHS
I understand, but if the API call I'm using (twihs_write_byte()) simply puts bytes in the transmit register, and the byte sequence is compliant with the TLC5971 driver, I don't...
Wednesday, 6 November 2019 - 21:58
Shifting data from SAME70 via TWIHS
I make use of SPI extensively elsewhere in the design, and make use of some of the alternate functions on the SPI pins as well. I have the TWIHS interface available, and given the...
Wednesday, 6 November 2019 - 08:43

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