1This document describes how to upload the cx2341x firmware to the card. 2 3How to find 4=========== 5 6See the web pages of the various projects that uses this chip for information 7on how to obtain the firmware. 8 9The firmware stored in a Windows driver can be detected as follows: 10 11- Each firmware image is 256k bytes. 12- The 1st 32-bit word of the Encoder image is 0x0000da7 13- The 1st 32-bit word of the Decoder image is 0x00003a7 14- The 2nd 32-bit word of both images is 0xaa55bb66 15 16How to load 17=========== 18 19- Issue the FWapi command to stop the encoder if it is running. Wait for the 20 command to complete. 21- Issue the FWapi command to stop the decoder if it is running. Wait for the 22 command to complete. 23- Issue the I2C command to the digitizer to stop emitting VSYNC events. 24- Issue the FWapi command to halt the encoder's firmware. 25- Sleep for 10ms. 26- Issue the FWapi command to halt the decoder's firmware. 27- Sleep for 10ms. 28- Write 0x00000000 to register 0x2800 to stop the Video Display Module. 29- Write 0x00000005 to register 0x2D00 to stop the AO (audio output?). 30- Write 0x00000000 to register 0xA064 to ping? the APU. 31- Write 0xFFFFFFFE to register 0x9058 to stop the VPU. 32- Write 0xFFFFFFFF to register 0x9054 to reset the HW blocks. 33- Write 0x00000001 to register 0x9050 to stop the SPU. 34- Sleep for 10ms. 35- Write 0x0000001A to register 0x07FC to init the Encoder SDRAM's pre-charge. 36- Write 0x80000640 to register 0x07F8 to init the Encoder SDRAM's refresh to 1us. 37- Write 0x0000001A to register 0x08FC to init the Decoder SDRAM's pre-charge. 38- Write 0x80000640 to register 0x08F8 to init the Decoder SDRAM's refresh to 1us. 39- Sleep for 512ms. (600ms is recommended) 40- Transfer the encoder's firmware image to offset 0 in Encoder memory space. 41- Transfer the decoder's firmware image to offset 0 in Decoder memory space. 42- Use a read-modify-write operation to Clear bit 0 of register 0x9050 to 43 re-enable the SPU. 44- Sleep for 1 second. 45- Use a read-modify-write operation to Clear bits 3 and 0 of register 0x9058 46 to re-enable the VPU. 47- Sleep for 1 second. 48- Issue status API commands to both firmware images to verify. 49