The OS timer of RZ/A1 uses P0 clock, so until now it has been set the value of P0 clock in SystemCoreClock.
Changed the system clock value to set to SystemCoreClock.
Changed to refer to P0 clock macro instead of SystemCoreClock in OS timer processing.
The DEVICE_FOO macros are always defined (either 0 or 1).
This patch replaces any instances of a define check on a DEVICE_FOO
macro with value test instead.
Signed-off-by: Alastair D'Silva <alastair@d-silva.org>
In case of unusing RTOS, there is no processing against IRQ handler and it causes a linker error.
Therefore, I added this processing with WEAK attribute. Also I added cmain.S file at cmsis/TARGET_CORTEX_A folder.
In case of unusing RTOS, IRQ handler executes "while(1)" and it causes a program freeze.
Therefore, I revised this processing. Also I added the heap setting processing and set the align to 8 byte.
If the specified frequency exceeds the upper limit and lower limit at SPI driver, an error is output, but this does not match policy with other renesas drivers. Thus I revises the processing as follows.
- If "hz" is maximum over, it is rounded by the maximum value.
- If "hz" is minimum under, it is rounded by the minimum value.
For Arm toolchain build, Mbed 2(classic) programs occur an unexpected error if there is "#include "mem_XXXX.h"" in the script file.
It seems that the linker script can't find the include file because "mem_XXXX.h" file is not in the same path with the linker script.
(Refer to Issue #6975.)
To address this issue, I remove inclusion processing and define the related macros at ARMCC linker script file.
--legacyalign, --no_legacyalign are deprecated from ARMC6 compiler, in order to
remove deprecated flags all linker files (GCC and IAR as well to have uniformity)
should strictly align to 8-byte boundary
Currently the return value of flash_get_page_size() is 1 since the min size per one writing is 1 byte by Flash spec.
However, I noticed that this value causes a enormous write time When writing large data such as FW update.
So I revised this value to 8 byte by considering the writing time, memory alignment and memory hole.
MTU2(Multi function Timer pulse Unit 2) can create the low freaquency.
Currently GR-LYCHEE uses MTU2 channel 3 for LPTicker, but I noticed that a part of it is used by another function.
Thus, I changed MTU2 channel number for LPTicker to 2.
I changed _page_program() func because "buf" which is an argument of data_send() for writing must be a RAM address in order to operate in SPI mode.
(ex: if it is ROM table data, writing will be failure.)
Also, I changed the period of interrupt disable/enable at _page_program() func and _sector_erase() func because lock period is too long.
I modified the _page_program() because when the request of the size exceeding the maximum size(256 byte) per one writing of Flash recieved, it was not able to loop the writing with sifting the address every 256 byte.
Also I modified the return value of flash_get_page_size() because I found that the minimum size per one writing of Flash is 1 byte by reviewing Flash spec.
"FLASH_PAGE_SIZE" macro's value is remain 256, it doesn't be used at flash_get_page_size(), used at _page_program() for refferencing of the maximum page size.
Although other venders implement this feature by using RTC, in my H/W(RZ_A1), I cannot use RTC because it does not satisfy the spec of LP Ticker (ms order and low frequency between 8 KHz and 64 KHz).
Therefore I implemented this feature by creating 1024 division by MTU2(Multi function Timer pulse Unit 2) in order to satisfy this spec.
As a result of investigating, the most unaffected channel among MTU2 placed on GR-PEACH and GR-LYCHEE was channel 3, so I use channel 3 for this feature.
- mbed_drv_cfg.h
I added a macro of MTU2 channel to this file for commonalizing code for GR-PEACH and GR-LYCHEE, and referenced it's macro at us_ticker.c.
- targets.json
I added a macro for enabling LP Ticker.
- mtu2.c mtu2.h
I defined fuction of MTU2's clock supply and stop.
Because MTU2 is utilized by pwm driver too, those function were referenced at lp_ticker driver and pwm driver.
- lp_ticker.c lp_ticker_init()
In order to satisfy the LP Ticker spec, I implemented by creating 1024 division by MTU2.
When an interrupt is required, it will be set with ticker_set_interrupt().
- lp_ticker.c lp_ticker_free()
This function stops the counting and powerdown the lp_ticker.
- lp_ticker.c lp_read()
This function returns the timer counter of MTU2.
- lp_ticker.c lp_ticker_set_interrupt()
In order to satisfy specifications, I implemented lp_ticker_set_interrupt() function.
- lp_ticker.c lp_ticker_fire_interrupt()
In order to satisfy spec, I implemented lp_ticker_fire_interrupt() function.
Also I added GIC_EnableIRQ for allowing the interrupt at end of function.
- lp_ticker.c lp_ticker_get_info()
To satisfy the spec, I implemented lp_ticker_get_info() function. The value of freq includes rounding off.
d-kato
Hugues Kamba
Martin Kojtal
Maciej Bocianski
Cruz Monrreal
Przemyslaw Stekiel
Russ Butler
TomoYamanaka
Alastair D'Silva
David Saada
Deepika
Yossi Levy