| Michael Karas 07/04/09 15:58 Read: 196 times Beaverton Or USA |
#166733 - Other Bit Banging Responding to: Per Westermark's previous message |
Other indirect methods of bit-banging GPIOs can also be relatively slow.
- Bit banging GPIOs on the end of a USB device can be slowed by the driver and the nature of the USB protocol. - Bit banging GPIOs on legacy parallel ports under Win-32 when using DLLs such as INPOUT32 or GIVEIO can be slowed by the amount of software layering going on. With USB devices it can be best to embed the performance driven timing of I/O sequencing into a target MCU rather than leaving the bit by bit manipulation up to host application software. mkaras |
| Topic | Author | Date |
| ISP-flash programmer | Lim Hua Yio | 07/03/09 09:05 |
| Re: ISP-flash programmer | Gopal Amlekar | 07/03/09 09:18 |
| USB-DB25 converters are not reliable | MUNISH KUMAR | 07/03/09 09:52 |
| RE: USB-Serial / Parallel converters | Gopal Amlekar | 07/03/09 15:01 |
| Not parallel port converters? | Per Westermark | 07/03/09 10:12 |
USB To "Parallel" Adapters  | Michael Karas | 07/03/09 12:42 |
| PCI latency? | Per Westermark | 07/03/09 13:10 |
| PCI Latency....Least of Problem... | Michael Karas | 07/03/09 18:06 |
| PCI latency can be a significant problem | Per Westermark | 07/04/09 04:48 |
| PCI Speed | Michael Karas | 07/04/09 07:06 |
| Bit-banging can be extremely slow | Per Westermark | 07/04/09 07:41 |
| Other Bit Banging | Michael Karas | 07/04/09 15:58 |
Slave processor a need for modern PC | Per Westermark | 07/04/09 20:36 |
| ISP Flash Programmer with USB | Sam James | 07/03/09 15:07 |