diff options
Diffstat (limited to 'firmware/fx2/usrp1/gpif.c')
| -rw-r--r-- | firmware/fx2/usrp1/gpif.c | 292 |
1 files changed, 292 insertions, 0 deletions
diff --git a/firmware/fx2/usrp1/gpif.c b/firmware/fx2/usrp1/gpif.c new file mode 100644 index 000000000..f6745a43b --- /dev/null +++ b/firmware/fx2/usrp1/gpif.c @@ -0,0 +1,292 @@ +// This program configures the General Programmable Interface (GPIF) for FX2. +// Please do not modify sections of text which are marked as "DO NOT EDIT ...". +// +// DO NOT EDIT ... +// GPIF Initialization +// Interface Timing Async +// Internal Ready Init IntRdy=1 +// CTL Out Tristate-able Binary +// SingleWrite WF Select 1 +// SingleRead WF Select 0 +// FifoWrite WF Select 3 +// FifoRead WF Select 2 +// Data Bus Idle Drive Tristate +// END DO NOT EDIT + +// DO NOT EDIT ... +// GPIF Wave Names +// Wave 0 = singlerd +// Wave 1 = singlewr +// Wave 2 = FIFORd +// Wave 3 = FIFOWr + +// GPIF Ctrl Outputs Level +// CTL 0 = WEN# CMOS +// CTL 1 = REN# CMOS +// CTL 2 = OE# CMOS +// CTL 3 = CLRST CMOS +// CTL 4 = unused CMOS +// CTL 5 = BOGUS CMOS + +// GPIF Rdy Inputs +// RDY0 = EF# +// RDY1 = FF# +// RDY2 = unused +// RDY3 = unused +// RDY4 = unused +// RDY5 = TCXpire +// FIFOFlag = FIFOFlag +// IntReady = IntReady +// END DO NOT EDIT +// DO NOT EDIT ... +// +// GPIF Waveform 0: singlerd +// +// Interval 0 1 2 3 4 5 6 Idle (7) +// _________ _________ _________ _________ _________ _________ _________ _________ +// +// AddrMode Same Val Same Val Same Val Same Val Same Val Same Val Same Val +// DataMode NO Data NO Data NO Data NO Data NO Data NO Data NO Data +// NextData SameData SameData SameData SameData SameData SameData SameData +// Int Trig No Int No Int No Int No Int No Int No Int No Int +// IF/Wait Wait 1 Wait 1 Wait 1 Wait 1 Wait 1 Wait 1 Wait 1 +// Term A +// LFunc +// Term B +// Branch1 +// Branch0 +// Re-Exec +// Sngl/CRC Default Default Default Default Default Default Default +// WEN# 0 0 0 0 0 0 0 0 +// REN# 0 0 0 0 0 0 0 0 +// OE# 0 0 0 0 0 0 0 0 +// CLRST 0 0 0 0 0 0 0 0 +// unused 0 0 0 0 0 0 0 0 +// BOGUS 0 0 0 0 0 0 0 0 +// +// END DO NOT EDIT +// DO NOT EDIT ... +// +// GPIF Waveform 1: singlewr +// +// Interval 0 1 2 3 4 5 6 Idle (7) +// _________ _________ _________ _________ _________ _________ _________ _________ +// +// AddrMode Same Val Same Val Same Val Same Val Same Val Same Val Same Val +// DataMode Activate Activate Activate Activate Activate Activate Activate +// NextData SameData SameData SameData SameData SameData SameData SameData +// Int Trig No Int No Int No Int No Int No Int No Int No Int +// IF/Wait Wait 1 IF Wait 1 Wait 1 Wait 1 Wait 1 Wait 1 +// Term A EF# +// LFunc AND +// Term B EF# +// Branch1 ThenIdle +// Branch0 ElseIdle +// Re-Exec No +// Sngl/CRC Default Default Default Default Default Default Default +// WEN# 0 1 1 1 1 1 1 0 +// REN# 0 0 0 0 0 0 0 0 +// OE# 0 0 0 0 0 0 0 0 +// CLRST 0 0 0 0 0 0 0 0 +// unused 0 0 0 0 0 0 0 0 +// BOGUS 0 0 0 0 0 0 0 0 +// +// END DO NOT EDIT +// DO NOT EDIT ... +// +// GPIF Waveform 2: FIFORd +// +// Interval 0 1 2 3 4 5 6 Idle (7) +// _________ _________ _________ _________ _________ _________ _________ _________ +// +// AddrMode Same Val Same Val Same Val Same Val Same Val Same Val Same Val +// DataMode NO Data Activate NO Data NO Data NO Data NO Data NO Data +// NextData SameData SameData SameData SameData SameData SameData SameData +// Int Trig No Int No Int No Int No Int No Int No Int No Int +// IF/Wait Wait 1 IF Wait 1 IF Wait 1 Wait 1 Wait 1 +// Term A TCXpire TCXpire +// LFunc AND AND +// Term B TCXpire TCXpire +// Branch1 Then 2 ThenIdle +// Branch0 Else 1 ElseIdle +// Re-Exec No No +// Sngl/CRC Default Default Default Default Default Default Default +// WEN# 0 0 0 0 0 0 0 0 +// REN# 1 0 0 0 0 0 0 0 +// OE# 1 1 1 0 0 0 0 0 +// CLRST 0 0 0 0 0 0 0 0 +// unused 0 0 0 0 0 0 0 0 +// BOGUS 0 0 0 0 0 0 0 0 +// +// END DO NOT EDIT +// DO NOT EDIT ... +// +// GPIF Waveform 3: FIFOWr +// +// Interval 0 1 2 3 4 5 6 Idle (7) +// _________ _________ _________ _________ _________ _________ _________ _________ +// +// AddrMode Same Val Same Val Same Val Same Val Same Val Same Val Same Val +// DataMode NO Data Activate Activate Activate Activate Activate Activate +// NextData SameData SameData SameData SameData SameData SameData SameData +// Int Trig No Int No Int No Int No Int No Int No Int No Int +// IF/Wait Wait 1 IF Wait 1 Wait 1 Wait 1 Wait 1 Wait 1 +// Term A TCXpire +// LFunc AND +// Term B TCXpire +// Branch1 ThenIdle +// Branch0 Else 1 +// Re-Exec No +// Sngl/CRC Default Default Default Default Default Default Default +// WEN# 0 0 0 0 0 0 0 0 +// REN# 0 0 0 0 0 0 0 0 +// OE# 0 0 0 0 0 0 0 0 +// CLRST 0 0 0 0 0 0 0 0 +// unused 0 0 0 0 0 0 0 0 +// BOGUS 0 0 0 0 0 0 0 0 +// +// END DO NOT EDIT + +// GPIF Program Code + +// DO NOT EDIT ... +#include "fx2.h" +#include "fx2regs.h" +#include "fx2sdly.h" // SYNCDELAY macro +// END DO NOT EDIT + +// DO NOT EDIT ... +const char xdata WaveData[128] = +{ +// Wave 0 +/* LenBr */ 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x07, +/* Opcode*/ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, +/* Output*/ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, +/* LFun */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3F, +// Wave 1 +/* LenBr */ 0x01, 0x3F, 0x01, 0x01, 0x01, 0x01, 0x01, 0x07, +/* Opcode*/ 0x22, 0x03, 0x02, 0x02, 0x02, 0x02, 0x02, 0x00, +/* Output*/ 0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x00, +/* LFun */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3F, +// Wave 2 +/* LenBr */ 0x01, 0x11, 0x01, 0x3F, 0x01, 0x01, 0x01, 0x07, +/* Opcode*/ 0x00, 0x03, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, +/* Output*/ 0x06, 0x04, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, +/* LFun */ 0x00, 0x2D, 0x00, 0x2D, 0x00, 0x00, 0x00, 0x3F, +// Wave 3 +/* LenBr */ 0x01, 0x39, 0x01, 0x01, 0x01, 0x01, 0x01, 0x07, +/* Opcode*/ 0x00, 0x03, 0x02, 0x02, 0x02, 0x02, 0x02, 0x00, +/* Output*/ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, +/* LFun */ 0x00, 0x2D, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3F, +}; +// END DO NOT EDIT + +// DO NOT EDIT ... +const char xdata FlowStates[36] = +{ +/* Wave 0 FlowStates */ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, +/* Wave 1 FlowStates */ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, +/* Wave 2 FlowStates */ 0x81,0x2D,0x26,0x00,0x04,0x04,0x03,0x02,0x00, +/* Wave 3 FlowStates */ 0x81,0x2D,0x21,0x00,0x04,0x04,0x03,0x02,0x00, +}; +// END DO NOT EDIT + +// DO NOT EDIT ... +const char xdata InitData[7] = +{ +/* Regs */ 0xA0,0x00,0x00,0x00,0xEE,0x4E,0x00 +}; +// END DO NOT EDIT + +// TO DO: You may add additional code below. + +void GpifInit( void ) +{ + BYTE i; + + // Registers which require a synchronization delay, see section 15.14 + // FIFORESET FIFOPINPOLAR + // INPKTEND OUTPKTEND + // EPxBCH:L REVCTL + // GPIFTCB3 GPIFTCB2 + // GPIFTCB1 GPIFTCB0 + // EPxFIFOPFH:L EPxAUTOINLENH:L + // EPxFIFOCFG EPxGPIFFLGSEL + // PINFLAGSxx EPxFIFOIRQ + // EPxFIFOIE GPIFIRQ + // GPIFIE GPIFADRH:L + // UDMACRCH:L EPxGPIFTRIG + // GPIFTRIG + + // Note: The pre-REVE EPxGPIFTCH/L register are affected, as well... + // ...these have been replaced by GPIFTC[B3:B0] registers + + // 8051 doesn't have access to waveform memories 'til + // the part is in GPIF mode. + + IFCONFIG = 0xEE; + // IFCLKSRC=1 , FIFOs executes on internal clk source + // xMHz=1 , 48MHz internal clk rate + // IFCLKOE=0 , Don't drive IFCLK pin signal at 48MHz + // IFCLKPOL=0 , Don't invert IFCLK pin signal from internal clk + // ASYNC=1 , master samples asynchronous + // GSTATE=1 , Drive GPIF states out on PORTE[2:0], debug WF + // IFCFG[1:0]=10, FX2 in GPIF master mode + + GPIFABORT = 0xFF; // abort any waveforms pending + + GPIFREADYCFG = InitData[ 0 ]; + GPIFCTLCFG = InitData[ 1 ]; + GPIFIDLECS = InitData[ 2 ]; + GPIFIDLECTL = InitData[ 3 ]; + GPIFWFSELECT = InitData[ 5 ]; + GPIFREADYSTAT = InitData[ 6 ]; + + // use dual autopointer feature... + AUTOPTRSETUP = 0x07; // inc both pointers, + // ...warning: this introduces pdata hole(s) + // ...at E67B (XAUTODAT1) and E67C (XAUTODAT2) + + // source + AUTOPTRH1 = MSB( &WaveData ); + AUTOPTRL1 = LSB( &WaveData ); + + // destination + AUTOPTRH2 = 0xE4; + AUTOPTRL2 = 0x00; + + // transfer + for ( i = 0x00; i < 128; i++ ) + { + EXTAUTODAT2 = EXTAUTODAT1; + } + +// Configure GPIF Address pins, output initial value, + PORTCCFG = 0xFF; // [7:0] as alt. func. GPIFADR[7:0] + OEC = 0xFF; // and as outputs + PORTECFG |= 0x80; // [8] as alt. func. GPIFADR[8] + OEE |= 0x80; // and as output + +// ...OR... tri-state GPIFADR[8:0] pins +// PORTCCFG = 0x00; // [7:0] as port I/O +// OEC = 0x00; // and as inputs +// PORTECFG &= 0x7F; // [8] as port I/O +// OEE &= 0x7F; // and as input + +// GPIF address pins update when GPIFADRH/L written + SYNCDELAY; // + GPIFADRH = 0x00; // bits[7:1] always 0 + SYNCDELAY; // + GPIFADRL = 0x00; // point to PERIPHERAL address 0x0000 + +// Configure GPIF FlowStates registers for Wave 0 of WaveData + FLOWSTATE = FlowStates[ 0 ]; + FLOWLOGIC = FlowStates[ 1 ]; + FLOWEQ0CTL = FlowStates[ 2 ]; + FLOWEQ1CTL = FlowStates[ 3 ]; + FLOWHOLDOFF = FlowStates[ 4 ]; + FLOWSTB = FlowStates[ 5 ]; + FLOWSTBEDGE = FlowStates[ 6 ]; + FLOWSTBHPERIOD = FlowStates[ 7 ]; +} + |