The GPIO for RX has to be initialized as input before the GPIO for TX can be initialized as output. Otherwise it could lead to creash if RX GPIO was used as output before.
Use the new 'test/available' target to detect if there are tests.
This prevents issues where calling make would print unrelated debug
messages that would be taken as an output.
The targets executed to check if there are tests can be set with
'--test-available-targets'.
Function uart_set_baudrate which is only used internally was made static and renamed to _uart_set_baudrate to indicate that it is an internal function. Furthermore, an additional waiting for flushed TX FIFO added. The reconfiguration is now handled as critical section.
When WITH_RIOT_GNRC is set in CFLAGS, tinydtls will use a more
compact address representation based on ipv6_addr_t instead of
POSIX-style sockaddr_in6 to identify sessions (cf. struct session_t).
When posix_sockets are used (as in libcoap, e.g.), the POSIX
address representation should be selected automatically for
consistency. This change adds -DWITH_RIOT_GNRC to CFLAGS only
when the module posix_sockets is not selected.
An additional _ for static symbols has been added by mistake and should be removed. This will make future merging with the reimplementation of ESP8266 easier.
This allows querying the build system if there are test available.
Before, one should rely on 'info-debug-variable-TESTS' to print the list
of test files. But was not reliable as sometime the build system printed
messages anyway.
BOARD=esp32-wroom-32 make --silent --no-print-directory \
-C examples/hello-world/ info-debug-variable-TESTS
ESP32_SDK_DIR should be defined as /path/to/esp-idf directory
ESP32_SDK_DIR is set by default to /opt/esp/esp-idf
# empty line here
Now the return code can be trusted.
Added file with clock settings for STM32-F7 CPUs with a core clock of 216MHz,
an external high speed clock of 8 MHz and external low speed clock (32.768kHz)
enabled.
Add a trivial shell program that scans for all slaves on an I2C bus by iterating
all of the possible 127 I2C addresses and checking for the ACK of the device.
There is an error when the start byte NACKs
The nack sets the stop bit twice which keeps the stop bit high the next time
When the stop bit is high it creates a timeout when trying to use
This commit fixes so when a NACK occures on the address it doesn't stop twice
