Search found 606 matches
- Mon Sep 15, 2014 11:32 am
- Forum: NetBurner Software
- Topic: EEPROM on I2C Bus
- Replies: 7
- Views: 4117
EEPROM on I2C Bus
I'm writing a function to write data to a serial EEPROM via i2c on a NANO54415. I see how to write the data with NB library functions. After a write the EEPROM goes into a write-cycle for up to 5ms, during which time it cannot be accessed. Rather than spin for 5ms, I want to use the ACK feature of t...
- Fri Sep 12, 2014 9:40 am
- Forum: NetBurner Software
- Topic: RTC on the NANO
- Replies: 1
- Views: 1381
RTC on the NANO
The NANO54415 has both rtc.h/cpp and mcf5441x_rtc.h/cpp files. Why are there two, and which pair should be used for RTC?
Steve
Steve
- Wed Sep 10, 2014 11:41 am
- Forum: NetBurner Software
- Topic: SPI Chip-Selects
- Replies: 5
- Views: 3053
Re: SPI Chip-Selects
DOH! That was it. I assumed the CS2 chip-select was an input to the SD card, so it didn't matter.
Any thoughts on whether I need to call DSPIInit() every time I want to change the spi chip-selects?
Thanks.
Any thoughts on whether I need to call DSPIInit() every time I want to change the spi chip-selects?
Thanks.
- Tue Sep 09, 2014 8:52 am
- Forum: NetBurner Software
- Topic: SPI Chip-Selects
- Replies: 5
- Views: 3053
SPI Chip-Selects
Using a NANO54415. I have multiple devices on the SPI port. The only place I've found to set the chip-selects is through the DSPIInit() function. Do I need to call DSPIInit() before every transfer when all I need to change is the chip-select, or can I just set Command_Mask accordingly before each tr...
- Fri Sep 05, 2014 6:06 pm
- Forum: NetBurner Software
- Topic: SD/MMC Interface Control Pins for Nano54415
- Replies: 3
- Views: 2643
Re: SD/MMC Interface Control Pins for Nano54415
The examples work fine. But when we move to our hardware I was hoping we could add an SD card carrier to the nano board and use a different SPI port for the card than SPI1 because the docs say that the SD card can't share the SPI bus with any other devices. And we have other SPI devices to connect t...
- Fri Sep 05, 2014 11:22 am
- Forum: NetBurner Software
- Topic: SD/MMC Interface Control Pins for Nano54415
- Replies: 3
- Views: 2643
SD/MMC Interface Control Pins for Nano54415
The Hardware and Software Guide says the EFFS requires exclusive use of the QSPI interface. Looking through the source code, mmc_mcf.cpp, I see there are two sets of defines for the SPI port to use for EFFS, SPI0 and SPI1, with SPI0 commented out. Since I don't have a schematic of the NANO board, I ...
- Fri Jul 25, 2014 2:52 pm
- Forum: NetBurner Software
- Topic: Sample program EFFS-BASIC
- Replies: 4
- Views: 2661
Re: Sample program EFFS-BASIC
So, the first time through the program, it works. When I move the start of the while loop in usermain() from just spinning on a 1-second delay to the just before DisplayEffsSpaceStats(), so that it repeatedly runs through the SD card test once a second, it fails. Is that because I have to call f_ent...
- Fri Jul 25, 2014 2:31 pm
- Forum: NetBurner Software
- Topic: Sample program EFFS-BASIC
- Replies: 4
- Views: 2661
Sample program EFFS-BASIC
I trying to run the EFFS-BASIC sample program on a NANO54415. I'm using v2.6.7 of NBEclipse. I have a 1Gb microSD chip plugged into the microSD socket.
The first library call fails:
rv = f_getfreespace( EXT_FLASH_DRV_NUM, &space );
with error F_ERR_TASKNOTFOUND.
I have no idea what that means.
The first library call fails:
rv = f_getfreespace( EXT_FLASH_DRV_NUM, &space );
with error F_ERR_TASKNOTFOUND.
I have no idea what that means.
- Thu Jul 24, 2014 8:08 am
- Forum: NetBurner Software
- Topic: microSD Sample program for Nano
- Replies: 2
- Views: 1973
Re: microSD Sample program for Nano
I did not see those examples. That looks like what I was looking for. Thank you.
Steve
Steve
- Mon Jul 21, 2014 2:27 pm
- Forum: NetBurner Software
- Topic: microSD Sample program for Nano
- Replies: 2
- Views: 1973
microSD Sample program for Nano
I have a NANO54415 Dev Kit, and the carrier board comes with a microSD card slot. Is there a sample program for using the microSD card? There doesn't appear to be one in the installed samples directory.
Steve
Steve