diff options
Diffstat (limited to 'openpcd/usb.txt')
| -rw-r--r-- | openpcd/usb.txt | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/openpcd/usb.txt b/openpcd/usb.txt new file mode 100644 index 0000000..669d228 --- /dev/null +++ b/openpcd/usb.txt @@ -0,0 +1,5 @@ + +- connection to usb host +- end-of-bus-reset triggers ENDBUSRES in UDP_ISRand interrupt is triggered +- enable defualt EP, setting EPEDS in UDP_CSR[0] reg and enable irq for EP0 via UDP_IER +- enumeration begins with control transfer |