Saleae Logic16/Firmware
Revision as of 22:31, 25 July 2013 by Marcus Comstedt (talk | contribs) (→Endpoint 1 OUT (EP1_OUT) handler: Explain operations 0x7e and 0x7f)
The following information is related to the vendor firmware included with the version 1.1.15 of the vendor application "Logic".
Interrupt handlers
The following interrupt handlers are installed. If the address is absent, it means the handler just returns (RETI) without performing any action.
| RESET | 0x0000 |
| TF2 | 0x0e65 |
| RESUME | 0x002e |
| SUDAV | 0x0ae8 |
| SOF | 0x13d2 |
| SUTOK | 0x13bf |
| SUSPEND | 0x13aa |
| USB_RESET | 0x130b |
| HISPEED | 0x12df |
| EP0ACK | |
| EP0_IN | |
| EP0_OUT | |
| EP1_IN | |
| EP1_OUT | 0x115d |
| EP2 | 0x11a2 |
| EP4 | |
| EP6 | |
| EP8 | |
| IBN | |
| EP0PING | |
| EP1PING | |
| EP2PING | |
| EP4PING | |
| EP6PING | |
| EP8PING | |
| ERRLIMIT | |
| EP2ISOERR | |
| EP4ISOERRF | |
| EP6ISOERR | |
| EP8ISOERRF | |
| EP2PF | |
| EP4PF | |
| EP6PF | |
| EP8PF | |
| EP2EF | |
| EP4EF | |
| EP6EF | |
| EP8EF | |
| EP2FF | 0x11e7 |
| EP4FF | |
| EP6FF | |
| EP8FF | |
| GPIFDONE | |
| GPIFWF |
Endpoint 1 OUT (EP1_OUT) handler
After decrypting the OUT packet, processing of the packet proceeds depending on the first byte of the packet, which selects the operation. After the operation, any resulting IN packet will be encrypted before submitting it to the host.
| Byte | Handler | Operation |
|---|---|---|
| 1 | 0x14f | ? |
| 2 | 0x157 | ? |
| 6 | 0x15f | ? |
| 7 | 0x1b3 | ? |
| 0x7a | 0x309 | ? |
| 0x7b | 0x346 | ? |
| 0x7c | 0x282 | ? |
| 0x7d | 0x2aa | ? |
| 0x7e | 0x2cf | Configure the GPIF, and prepare the FPGA for bitstream upload by pulsing PROG_B and then waiting for INIT_B. |
| 0x7f | 0x2e4 | Transmit N (1-62) bytes of bitstream ot the FPGA DIN pin, clocked by CCLK. |
| 0x80 | 0x205 | Transmit N (1-31) 16-bit words to the FPGA. The second byte of the packet encodes N. Data is sent on PA6, MSB first, with rising edges of PA5 to clock the bits out. During each word transfer, PA4 is held low. The most significant bit (b15) of each word must be 0. |
| 0x81 | 0x23b | Perform N (1-31) write-read transactions to the FPGA. The second byte of the packet encodes N. Each transaction consists of 8 bits (from the out packet) being transmitted on PA6, like for the 0x80 operation above, and then 8 bits being received on PA7. N bytes will be available for an IN transfer afterwards. The most significant bit (b7) of each byte to send must be 0, but is actually transmitted as a 1 (to indicate read operation). PA7 is polled immediately after the falling edge of PA5. PA4 is held low during each write-read transaction. |
| 0x82 | 0x3a3 | Read the REVID register. 16 bits of REVID data will be available for an IN transfer. |
| others | 0x3c7 | Do nothing |
Command 0x80 waveform
Command 0x81 waveform
