Hi all. I thiks so you can help me to select microcontroler to start work with it. I compare two mcu Philips (LPC2142) and Atmel (AT91SAM7S64). Atmel and Philips have same flash and ram memory.But Philips can use 48pin, atmel 32pin.... . Please write me your opinion for this mcu, or litle comparsion . Yes I'm read data sheet more then 2x.I want know your opinion's. I want start develp with 32bit mcu. regards. Dominik Sevc - Dzairo ps: Sorry for english.
Hi, if this is for hobby only... - Pick any of the chips, both are easy to start, at least LED blinking - Plenty of examples from everywhere (WinARM, Keil, IAR, Yahoo-LPC, AT91.com) if this is for commercial projects... - It would be a tough question... - Do you need to have USB bus powered?? make sure chips are <500uA under sleep mode. Both chips claim to achieve that but still a "?" - Get field support engr to ensure you that chip is USB compliant - LPC chips run at single clock Flash cycles up to 60Mhz, for Atmel only up to 30MHz. This is about double in CPU power on the philips chip (unless you run atmel chip on internal SRAM) - SRAM is 64KB for at91sam7s256 and flash eprom size is 512KB on LPC2148. Which type do you prefer?? and both are LQFP64 but LPC parts has 46 I/Os - Umm... for better and unbiased answers, why not you throw the same question to both Yahoo LPC2000 group and www.at91.com..... :) Regards
In addition: There are great differences in the intergrated peripherals ("cells" i.e. UART and SPI). Check the datasheets of both devices. I have not done much with the AT91SAM7 but at least UART and SPI offer much more functions and configuration-options than those in the current LPC213x/4x (but are also a little more complicated to use).
Thanks for own opinion. I want use USB (create small toys used HID class). Use uart for comunication with GSM module (want rewrite my old project). I want to create small audio recorder. Capture audio over ADC (max. frek. sample 4khz), compress sample and save to internal flash. I want record just 10 or 20 second. Play audio from internal flas - use DAC or PWM . Which of mcu is easy to use to make small project, program, debug... . regards Dzairo