MCBSTM32EXL Keil, MCBSTM32EXL Datasheet - Page 802

• Manufacturer Part Number: MCBSTM32EXL
• Description: BOARD EVALUATION FOR STM32F103ZE
• Manufacturer: Keil

Specifications of MCBSTM32EXL

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

USB on-the-go full-speed (OTG_FS)
802/995
Figure 274. Normal interrupt OUT/IN transactions
●
Unmask (NAK/TXERR/STALL/XFRC/FRMOR)
if (XFRC)
else
{
Reset Error Count
Mask ACK
De-allocate Channel
}
if (STALL or FRMOR)
Interrupt service routine for interrupt OUT/IN transactions
a)
{
Mask ACK
Unmask CHH
init_reg(ch _2)
init_reg(ch _2)
read_rx_fifo
read_rx_sts
read_rx_sts
set_ch_en
set_ch_en
(ch_2)
(ch_2)
Interrupt OUT
1
1
2
6
7
2
6
9
Application
init _reg(ch_1)
init _reg(ch_1)
init _reg(ch_1)
write_tx_fifo
write_tx_fifo
write_tx_fifo
(ch_1)
(ch_1)
(ch_1)
Doc ID 13902 Rev 9
RXFLVL interrupt
RXFLVL interrupt
AHB
MPS
MPS
MPS
MPS
1
1
1
1
3
8
5
3
5
Host
ch_1
ch_2
ch_1
ch_2
4
4
Periodic Request Queue
Assume that this queue
can hold 4 entries.
USB
(micro)
(micro)
Device
frame
frame
Even
Odd
ai15676
RM0008