Description:
Embedded computer systems topics.
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How to synchronize a streaming system with FPGA+FT2232H FIFO
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Hi, I'm having trouble figuring out how to architect a robust system using the FTDI chips in FIFO mode. I'm pretty sure some of you have been through this before. I'm using the FT2232H in synchronous FIFO, but my concerns are general. The system has PC <-> FT2232H <-> FPGA, and is used to both stream/receive... more »
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Audio with AT91SAM7
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I've been looking for a capable chip to do audio processing. I'm a hobbyist but I'm looking for something I could develop on and then take to (very) small scale production, it would serve as the FX processor in an audio amp. Mainly the dsPIC33 FJ128GP802 got my attention because it has a 16bit audio... more »
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Friday afternoon C trivia:
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Since there are so many experienced C programmers on this group. How about a little test? Just for fun... I have four pointer definitions: typdef void * LPVOID; 1. const void * ptr = ... 2. const LPVOID ptr = ... 3. void * const ptr = ... 4. LPVOID const ptr = ... Questions: 1. Which pointers point to constant memory. E.g. you can't change the... more »
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SiLab C8051F064, SPI, 3/4 wire, P0.3, NSSMD problem
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SiLab C8051F064, SPI, 3/4 wire, P0.3, NSSMD problem: ============================== ========== Commissioning new board which has used P0.3 for a chip select for an SPI device (MAX3420 being USB target).The 8051 is the SPI master. In the past we used P3.7 for chip select (with SPI in three wire mode) and all worked... more »
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Endianness macros
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[ NB: cross-posted to comp.lang.c and comp.arch.embedded ] Hello everyone, I'm having trouble understanding some endianness-related macros provided on my platform. <quote> typedef volatile U32 FOOBA_MU32; typedef volatile U16 FOOBA_MU16; typedef volatile U8 FOOBA_MU8; /* ------------------------------ ------------------------- */... more »
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