The ARBL flag signals that bus master arbitration has been lost.
This may occur if devices on the bus misbehave, or in a multi-master
situation, or if devices are not powered and pull the SDA line down, or
if the communication wires are disconnected while communicating.
- Merged the two kinetis_common ldscripts into a single script.
- Updated cpus to use the new script
- Updated K60 to merge sram_l and sram_u into one segment
- Use hwtimer_set for hwtimer_set_absolute()
- Collect hwtimer statistics with #if ENABLE_STATS
- Assembler optimized functions for CNR handling
- Correct off-by-1 after counter reset
- Defer CMR update from hwtimer_unset until ISR fires
- Set the proper prescaler value depending on requested frequency
- Return the actual achieved frequency in pwm_init
- Handle 1-8 channels depending on periph_conf.h instead of 4 fixed
- Perform function argument verification before touching the hardware
- Turn on PORT clock gate before touching PORT registers
- Eliminate some magic numbers
add peripheral drivers for Freescale Kinetis MCUs:
adc driver
cpuid driver
gpio driver
hwtimer_arch driver (hwtimer used Low Power Timer)
i2c driver (master mode only)
mcg driver
pwm driver
random_rnga driver
random_rngb driver
rtc driver
spi driver
timer driver (timer used Periodic Interrupt Timer)
uart driver
add doc.txt (configuration examples)
random_rnga: Update RNGA driver in preparation for RNGB driver.
random_rngb: Add RNGB driver.
spi: refactor SPI to work for multiple CTARS, add spi_acquire, spi_release
gpio: Add gpio_irq_enable, gpio_irq_disable. Refactor GPIO.
gpio: Add gpio_irq_enable, gpio_irq_disable.
gpio: Refactor ISR functions to work with all GPIOs (0-31) and all ports (PORTA-PORTH)
adc: Refactor ADC, add calibration and scaling.
Added integer scaling of results in adc_map.
Handle precision setting in adc_init.
Set ADC clock divider depending on module clock.
Add ADC_1 as a possible device.
Add ADC calibration procedure according to K60 ref manual.
Handle ADC pins which are not part of the pin function mux.
Signed-off-by: Joakim Gebart <joakim.gebart@eistec.se>
