Wi-Fi Combo Forum Discussions

Hi Guys,    

Does CYW43907 support 3 wire Legacy coexistence protocol? I found an application note (AN214852) which mentions that CY43XXX does support Co-existence. But, the Data sheet for CYW43907 does not have any information on 3-wire co-existence support. I need to interface CYW43907 with external 3rd party ZIgbee chip. Please confirm if this is possible and provide any additional info.

Thanks & Regards,

Sandeep

Hello,

I'm trying the snip.sd_filesystem application in Wiced Studio with the CYW43907 eval board and a 2GB SD Card.

In the sd_filesystem.mk makefile I have enabled FileX and exFAT support, as follows:

# for SD/MMC card support

WICED_SDMMC_SUPPORT := yes

USING_FILEX := yes

# default stack size was WICED_DEFAULT_APPLICATION_STACK_SIZE, 6K

# needs big stack size for deep directory processing

GLOBAL_DEFINES += APPLICATION_STACK_SIZE=1024*256

# enable FileX exFAT

GLOBAL_DEFINES += FX_ENABLE_EXFAT

$(NAME)_COMPONENTS := filesystems/FileX

However, the system always fails to mount the filesystem, regardless if the scared is formatted as exFAT or FAT16/32.

If I comment out the FX_ENABLE_EXFAT constant and format the sdcard as FAT16/32, the snip application works as expected.

So, the exFAT support seems not to be working. Is there anything else to do to enable the exFAT support with FileX?

I know that FAT32 is more than enough for a 2GB sdcard, but I'd like to understand if the system can really work with exFAT or not.

Thank you for the assistance.

SDK being used - 6.0

So I'm trying to use OTA2 on the quicksilver arrow platform (cyw43907 based). I added the platform files to WICED, added the platform as valid for the ota2 bootloader and failsafe, and built the OTA2 example code and it works flawlessly. However when I try to download the ota2 image file (snip.scan, built with make target snip.scan-QuicksilverEval ota2_image) the ota2 code reports that the platform in the header isn't correct. heres the log output:

0273 00:10:45.458 wiced_ota2_image_validate() OTA Image Platform type fail. CYW943907AEVAL1F.B1 != QuicksilverE             val

0274 00:10:45.467 wiced_ota2_write() wiced_ota2_update_staged_header() OTA image not supported!

0276 00:10:45.578 OTA header Information: OTA Image Header after Updating OTAImage header:

0277 00:10:45.585        ota_version: 1

0278 00:10:45.589     software_major: 0

0279 00:10:45.592     software_minor: 0

0280 00:10:45.596           platform: CYW943907AEVAL1F.B1

0281 00:10:45.601             status: 0 (invalid)

0282 00:10:45.606     bytes_received: 1215

0283 00:10:45.609         header_crc: 0x1acf1f42

0284 00:10:45.614       magic_string: OTAimage

0285 00:10:45.618          sign_type: 0

0286 00:10:45.622   secure_signature: TODO

0287 00:10:45.626         image_size: 937984

0288 00:10:45.630    component_count: 5

0289 00:10:45.633  data start offset: 4096

0290 00:10:45.637 ota2_get_OTA() FAILED 0 < 937984!

0291 00:10:45.642

ota2_get_OTA_file() Exiting 4

What do I need to change (not including updating the WICED version) to ensure that the ota2 header is written with the proper platform?

I am trying wifi roaming function on cyw43340.

As we konw,when roaming works,it will scan channels.

I want to konw which channels will be scaned and can I set up these channels?

I know the CYW43907 has 8KB of AON memory. It looks like the tiny bootloader resides in this area and the binary is 4.76 KB. Is the remaining space available for my application to store information across a SW reset or is some of the space allocated for other uses?

I have seen in section "7.1 WLAN CPU and Memory Subsystem"  in the datasheet https://www.cypress.com/file/297991/download  for CYW43362 that there is an integrated ARM Cortex-M3 processor with internal RAM and ROM. what is this processor used for? can I use it to design program? and how to program.