Until now, when the frequency function of CAN driver was executed, signal no output, and the frequency could not be changed.
Since there was an error in the frequency changing procedure I modified it.
Renesas modified the initial value of interrupt edge in "gpio_irq_init" function.
The value was "both egde(rise and fall)".So we modified it to "low revel".
When the floating-point calculation is executed into the processing which is called from IRQ handlers, VFP register is overwritten.
Therefore, we fixed the issue. we added the process to execute the saving (Push) and the returning (Pop) of VFP register in before and after the appropriate processing.
Bugs are as below.
- In the case of MTU2 mode, modify a problem that does not excute "pwmout_write ()" at the end of "pwmout_pulsewidth_us ()" function.
- In the case of MTU2 mode in "pwmout_period_us ()" function, modify a problem that the executing result of "set_mtu2_duty_again ()" function does not reflect in the register of TGRA_MATCH [] and TGRC_MATCH [].
tomoyuki yamanaka
Toyomasa Watarai
Sam Grove
Christopher Haster
mtkrtk