RL-FlashFS combination.

 RL-FlashFS combination.

Hello all expert.

I would like to integrade RL-FlashFS on LPC2368 device which has 1 SPI, 2 SSP and 1 MCI interface. The concept is to interface AT45DB321 using SSP0 and MCI for SD/MMC card. The AT45DB321 is a local file storage and SD/MMC is external exchangable with PC. Both interface are able to transfer file together. The questions are:

1) Does RL-FS support both interface on the same system in parallel? If yes, there require any initialization more than finit()?

2) The files i must include in the project are
- File_Config.c
- MCI_LPC23xx.c/h (SD/MMC driver)
- FS_SPI_FlashPrg.c/h (AT45DB321 flash programming)
but no SPI driver for LPC23xx, it has only LPC214x driver (SPI_LPC214x.c). Any modification is needed?

3) The source code provided with RL-ARM using native SPI for AT45DBxxx at low speed mode, 400kps (SPI_LPC214x.c) but Atmel DataFlash support up to 30 Mps. The high speed mode (20Mps) for DataFlash does not allow but only support for SD/MMC in SPI mode. The question is how can i configure RL-FS using SSP0 rather than SPI to support DataFlash to get the performance of 20-30Mps? How can i configure SSP0 DMA support as same as in MCI source code (MCI_LPC23xx.c)?

4) The MCI source code (MCI_LPC23xx.c) at function mci_dma_start() it manage to use GPDMA, but the retricted access of GPDMA is buffer support only USB RAM (8Kbyte) and GPDMA peripherals. If i would like to copy file to internal RAM (32Kbyte) using RL-FS such as fread(), is it possible?
Also if i would like to copy file from SD/MMC to AT45DB321 and vice versa. How can i manage to use it?

5) We would like to copy file such as JPEG picture (>16kbyte) between both. Does RL-FS has an interface for file copying? If no, is there any work around code to copy such file using RL-FS?

Thank very much for your kind in advance.

Kom.

 RE: RL-FlashFS combination.

1) Does RL-FS support both interface on the same system in parallel? If yes, there require any initialization more than finit()?

Yes it's possible.

2) The files i must include in the project are
- File_Config.c
- MCI_LPC23xx.c/h (SD/MMC driver)
- FS_SPI_FlashPrg.c/h (AT45DB321 flash programming)
but no SPI driver for LPC23xx, it has only LPC214x driver (SPI_LPC214x.c). Any modification is needed?

You need to change in spi_init (SPI_LPC214x.c) the SSP's GPIO and MUX used in your aapp.

3) The source code provided with RL-ARM using native SPI for AT45DBxxx at low speed mode, 400kps (SPI_LPC214x.c) but Atmel DataFlash support up to 30 Mps. The high speed mode (20Mps) for DataFlash does not allow but only support for SD/MMC in SPI mode. The question is how can i configure RL-FS using SSP0 rather than SPI to support DataFlash to get the performance of 20-30Mps? How can i configure SSP0 DMA support as same as in MCI source code (MCI_LPC23xx.c)?

Just configure the SSP0 at 20-30Mps, you don't need to use the DMA.

4) The MCI source code (MCI_LPC23xx.c) at function mci_dma_start() it manage to use GPDMA, but the retricted access of GPDMA is buffer support only USB RAM (8Kbyte) and GPDMA peripherals. If i would like to copy file to internal RAM (32Kbyte) using RL-FS such as fread(), is it possible?
Also if i would like to copy file from SD/MMC to AT45DB321 and vice versa. How can i manage to use it?

The USB RAM buffer is not a restriction to the file size to manage. You don't have to modify nothing.

5) We would like to copy file such as JPEG picture (>16kbyte) between both. Does RL-FS has an interface for file copying? If no, is there any work around code to copy such file using RL-FS?

The copy is just a loop of: read(src) - write (dst).

 RE: RL-FlashFS combination.

FYR.

MCB2300: DMA FAILS ON SD/MMC INTERFACE
http://www.keil.com/support/docs/3357.htm

MCB2300 and SD-Card/MCI trouble
http://www.keil.com/forum/docs/thread10914.asp

 RE: RL-FlashFS combination.

Dear Komoto Takamura,

From where did you download RL-FlashFS. Kinldy let me know about it.

Regards.

 RE: RL-FlashFS combination.

He might have bought it. It is part of a commercial package that Keil sells.

 RE: RL-FlashFS combination.

I mean to ask is that it shipped along with keil or need to be purchase separately.

 RE: RL-FlashFS combination.

You be asking

I mean to ask is that it shipped along with keil or need to be purchase separately.

Ansewr be

It be coming when you buy rl-arm.