hi,1- i am facing problem in configuration of endpoints in USB device controller on OMAP5912. When i write the configuration registers (register number 0x20 to 0x3F of device controller), value is not displayed correctly in memory windows. but if it read in code, right value is read. In memory windows, only bit 15 of specific register is shown modified and rest remains unchanged. 2- After configuration, only endpoint 0 responds to the Host and device is enumerated properly. but device controller does not responde to other endpoint traffic. 3- When endpoint0 configuraion register is written, values is shown to be copied to all configuration registers in memory window. but when read in software, actual value is read.
Below is initialization before writing configuration registers.1- Enable the top level multiplexing for USB device controller on Port
- - Enable the clock for USB device controller from clock_ctrl_reg and soft_req_reg.
After that when connected to Host, device is enumerated but device timeouts the non-control endpoint traffic. behavior is same if configuration register writing is not done.
Please let me know if i am skipping some initalization or doing something in wrong order.
i will be thankful