cxd56xx: various fixes
* arch: arm: cxd56xx: Support to set any i2c frequency
This commit supports to be able to set the i2c frequency other than just
100 or 400 Hz.
* arch: arm: cxd56xx: Enable SD clock during access to SD card
- Improve GNSS low sensitivity with SD card inserted
- Reduce power consumption by stopping SD clock
* arch: arm: cxd56xx: Do PANIC() when cpu rx fifo is overflow
If CPU Rx FIFO is overflow, it's fatal error for system. In such a case,
this commit changes to allow the user to notice by calling PANIC() for
debuggability enhancement.
* arch: arm: cxd56xx: Fix compile error in sdhci debug code
* arch: arm: cxd56xx: Remove assertion in cpu tx queue
When CPU Tx queue is overflow, it returns -EAGAIN instead of assertion
to be able to retry.
* arch: arm: cxd56xx: Add configurations for cpu fifo elements
Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
* arch: arm: cxd56xx: Fix LPADC configuration
LPADC options defined in the same symbol name, so kconfig tool
couldn't process them correctly.
Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
* arch: arm: cxd56xx: Update loader and gnssfw ver.17660
* arch: arm: cxd56xx: Fix hang-up when error interrupt occurs
Fix a problem that error interrupts are not cleared.
Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
* arch: arm: cxd56xx: Fix sdhci semaphore
Fix inital value of semaphore in sdhci drive.r
Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
* boards: cxd56xx: Treat the initial value of LNA power as off
LNA is always turned power on when GNSS is started. So it is desirable
that the initial value of the LNA power is off by default.
* boards: cxd56xx: Remove initial setting of PIN_AP_CLK
PIN_AP_CLK is used as a port selector of SDIO expander on the extension
board, and is set output low in initalizing. Therefore, this pin cannot
be used for other board. To avoid this restriction, remove this initial
operation because this pin is pulled down by default on the extension
board.
Approved-by: Gregory Nutt <gnutt@nuttx.org>
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README
======
Spresense is a compact development board based on Sony’s power-efficient
multicore microcontroller CXD5602. It allows developers to create IoT
applications in a very short time and is supported by the Arduino IDE as well
as the more advanced NuttX based SDK.
- Integrated GPS
The embedded GNSS with support for GPS, QZSS and GLONASS enables applications
where tracking is required.
- Hi-res audio output and multi mic inputs
Advanced 192kHz/24 bit audio codec and amplifier for audio output, and
support for up to 8 mic input channels.
- Multicore microcontroller
Spresense is powered by Sony's CXD5602 microcontroller (ARM® Cortex®-M4F × 6
cores), with a clock speed of 156 MHz.
Refer to https://developer.sony.com/develop/spresense/ for further information
about this board.
Configuration sub-directories
-----------------------------
wifi
This is a configuration for Spresense + Wi-Fi addon (Telit GS2200M) module.
With this configuration, (1) you can connect Spresense to an existing Wi-Fi
access point (2.4GHz 802.11b/g/n are supported) or (2) you can make
Spresense as a Wi-Fi access point. In both cases, you can login to the
Spresense with telnet, also access to a webserver (NOTE: this case you need
an extension board with microSDHC card)
(1) Station (STA) mode
To run the module in Station mode (i.e. to connect to an existing Wi-Fi
access point), You need to specify SSID with passcode.
nsh> gs2200m ssid-to-connect passcode &
If the connection succeeded, IP address is statically assigned.
nsh> ifconfig
eth0 Link encap:Ethernet HWaddr 3c:95:09:00:69:92 at UP
inet addr:10.0.0.2 DRaddr:10.0.0.1 Mask:255.255.255.0
Then, you can run DHCP client (renew command) to obtain IP address as well
as DNS server information. (NOTE: In current configuration, DHCP client on
GS2200M is disabled. If you enable the internal DHCP client, you can not
use DNS client on NuttX)
nsh> renew eth0 &
renew [6:100]
nsh> ifconfig
eth0 Link encap:Ethernet HWaddr 3c:95:09:00:69:92 at UP
inet addr:192.168.1.101 DRaddr:192.168.1.1 Mask:255.255.255.0
Now, you can run telnetd and webserver on Spresense.
nsh> telnetd &
telnetd [7:100]
nsh> webserver &
webserver [9:100]
nsh> Starting webserver
Also, you can run NTP client to adjust the RTC on Spresense. (NOTE: we
assume your network can access to pool.ntp.org, otherwise, you can specify
CONFIG_NETUTILS_NTPCLIENT_SERVER)
nsh> date
Jan 01 00:00:36 1970
nsh> ntpcstart
Started the NTP daemon as PID=11
nsh> date
Jul 30 06:42:13 2019
(2) Acess Point (AP) mode
To run the module in AP mode, you need to specify SSID to advertise and
WEP-key. (NOTE: in AP mode, you can also specify channel number to use)
nsh> gs2200m -a ssid-to-advertise 10-hex-digits-wep-key &
If the module was initialized in AP mode, you can see a new IP address is
assigned.
nsh> ifconfig
eth0 Link encap:Ethernet HWaddr 3c:95:09:00:69:93 at UP
inet addr:192.168.11.1 DRaddr:192.168.11.1 Mask:255.255.255.0
Now you can connect your PC to the AP with the above SSID and WEP-key
which you specified.
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