Post by thread:[PIC] Upgrade Path?

I'm currently using the PIC24H in new designs with external USB (FT245R), Ethernet (Lantronix xPort), external graphic LCD drive (CPLD and RAM), and external flash to hold Unicode character bitmaps. Even with the 40MIPS of the 24H, the processor is having a hard time keeping up. I'm also concerned that moving some of these resources on chip will use too many MIPS, leaving me even shorter. So... where should I head when looking for higher performance and more integration than the 24H? People here are suggesting an ARM based device, which I know little about. Is this a good direction? Does anyone have any idea where Microchip is going? Any chance of 80MIPS or more on the 24H? THANKS! Harold -- FCC Rules Updated Daily at http://www.hallikainen.com - Advertising opportunities available!

ARM does have some running at much higher speeds. You can check on NXP which is one of the market leaders. So far there are quite a few other offering besides the ARM but the problem is that none of them are that commited with it. I wouldn't want to design a product around them. ARM is a good step to higher end uC. John --- Harold Hallikainen <spam_OUTharoldTakeThisOuThallikainen.org> wrote: {Quote hidden}> I'm currently using the PIC24H in new designs with > external USB (FT245R), > Ethernet (Lantronix xPort), external graphic LCD > drive (CPLD and RAM), and > external flash to hold Unicode character bitmaps. > Even with the 40MIPS of > the 24H, the processor is having a hard time keeping > up. I'm also > concerned that moving some of these resources on > chip will use too many > MIPS, leaving me even shorter. So... where should I > head when looking for > higher performance and more integration than the > 24H? People here are > suggesting an ARM based device, which I know little > about. Is this a good > direction? Does anyone have any idea where Microchip > is going? Any chance > of 80MIPS or more on the 24H? > > THANKS! > > Harold > > > -- > FCC Rules Updated Daily at > http://www.hallikainen.com - Advertising > opportunities available! > --

If you need higher throughput go with ARM7TDMI, or maybe higher to ARM9 depending on your needs. You can take a look at NXP LPC2000 series micros. These are low pin count (48 pins or more) general purpose devices with flash. GNU toolchain is available for ARM with good support. Regards On 7/27/07, Harold Hallikainen <.....haroldKILLspam@spam@hallikainen.org> wrote: {Quote hidden}> I'm currently using the PIC24H in new designs with external USB (FT245R), > Ethernet (Lantronix xPort), external graphic LCD drive (CPLD and RAM), and > external flash to hold Unicode character bitmaps. Even with the 40MIPS of > the 24H, the processor is having a hard time keeping up. I'm also > concerned that moving some of these resources on chip will use too many > MIPS, leaving me even shorter. So... where should I head when looking for > higher performance and more integration than the 24H? People here are > suggesting an ARM based device, which I know little about. Is this a good > direction? Does anyone have any idea where Microchip is going? Any chance > of 80MIPS or more on the 24H? > > THANKS! > > Harold -- Chetan Bhargava Web: http://www.bhargavaz.net Blog: http://microz.blogspot.com

Forgot to send the link. Here it is. http://www.nxp.com/#/pip/cb=[type=product,path=50809/45993/45994,final=LPC2104_2105_2106_6]|pip=[pip=LPC2104_2105_2106_6][0] On 7/27/07, Chetan Bhargava <cbhargavaKILLspamgmail.com> wrote: {Quote hidden}> If you need higher throughput go with ARM7TDMI, or maybe higher to > ARM9 depending on your needs. You can take a look at NXP LPC2000 > series micros. These are low pin count (48 pins or more) general > purpose devices with flash. GNU toolchain is available for ARM with > good support. > > Regards > > > On 7/27/07, Harold Hallikainen <.....haroldKILLspam.....hallikainen.org> wrote: > > I'm currently using the PIC24H in new designs with external USB (FT245R), > > Ethernet (Lantronix xPort), external graphic LCD drive (CPLD and RAM), and > > external flash to hold Unicode character bitmaps. Even with the 40MIPS of > > the 24H, the processor is having a hard time keeping up. I'm also > > concerned that moving some of these resources on chip will use too many > > MIPS, leaving me even shorter. So... where should I head when looking for > > higher performance and more integration than the 24H? People here are > > suggesting an ARM based device, which I know little about. Is this a good > > direction? Does anyone have any idea where Microchip is going? Any chance > > of 80MIPS or more on the 24H? > > > > THANKS! > > > > Harold > > -- > Chetan Bhargava > Web: http://www.bhargavaz.net > Blog: http://microz.blogspot.com > -- Chetan Bhargava Web: http://www.bhargavaz.net Blog: http://microz.blogspot.com

On 7/27/07, Harold Hallikainen <EraseMEharoldspam_OUTTakeThisOuThallikainen.org> wrote: > I'm currently using the PIC24H in new designs with external USB (FT245R), > Ethernet (Lantronix xPort), external graphic LCD drive (CPLD and RAM), and > external flash to hold Unicode character bitmaps. Even with the 40MIPS of > the 24H, the processor is having a hard time keeping up. I'm also > concerned that moving some of these resources on chip will use too many > MIPS, leaving me even shorter. So... where should I head when looking for > higher performance and more integration than the 24H? People here are > suggesting an ARM based device, which I know little about. Is this a good > direction? Does anyone have any idea where Microchip is going? Any chance > of 80MIPS or more on the 24H? > Wow that is a lot! Perhaps an ARM9 or similar class of MCU will be better choice. Atmel/NXP/ST/etc have quite some parts. Maybe even an RTOS is warranteed in this case. Freescale ColdFire might be a good choice (some of them with built-in Ethernet and maybe LCD). According to some rumors, Microchip will soon come out 32bit PIC32. Not so sure what is the core based. Not ARM according to the rumor. Xiaofan

On 7/30/07, Alan B. Pearce <A.B.Pearcespam_OUTrl.ac.uk> wrote: > > Does anyone have any idea where Microchip is going? Any chance > > of 80MIPS or more on the 24H? > > > I thought the 30F devices were capable of 120MIPS, isn't the 24 series > capable of the same? > No dsPIC30F tops at 30MIPS. dsPIC33F and PIC24H top at 40MIPS currently. Xiaofan

> >No dsPIC30F tops at 30MIPS. dsPIC33F and PIC24H top at > 40MIPS currently. > > Ah, I must be thinking MHz then ... The little SX chips from Parallax are about the only thing that can do more and be code compatible with the smaller PICs. --- James Newton, Host of SXList.com @spam@jamesKILLspamsxlist.com 1-619-652-0593 fax:1-208-279-8767 SX FAQ / Code / Tutorials / Documentation: http://www.sxlist.com Pick faster!

On 7/30/07, James Newtons Massmind <KILLspamjamesnewtonKILLspammassmind.org> wrote: > > >No dsPIC30F tops at 30MIPS. dsPIC33F and PIC24H top at > > 40MIPS currently. > > > > Ah, I must be thinking MHz then ... > > The little SX chips from Parallax are about the only thing that can do more > and be code compatible with the smaller PICs. Unfortunately they are not compatible with dsPIC/PIC24 which is very different than PIC18C/18F, let alone the 16C5x/16F5x.a different. The other high speed 8-bit is Silabs which can do 100MIPS. If they comes with more DIP packages, I do not see the reason of the need for the SX. Regards, Xiaofan