def HRF_readreg(addr):
"""Read an 8 bit value from a register"""
buf = [addr, 0x00]
spi.select()
res = spi.frame(buf)
spi.deselect()
#print(hex(res[1]))
return res[1] # all registers are 8 bit
def HRF_readreg(addr):
"""Read an 8 bit value from a register"""
buf = [addr, 0x00]
spi.select()
res = spi.frame(buf)
spi.deselect()
#trace(hex(res[1]))
return res[1] # all registers are 8 bit
def HRF_readfifo_burst():
"""Read bytes from the payload FIFO using burst read"""
#first byte read is the length in remaining bytes
buf = []
spi.select()
spi.frame([ADDR_FIFO])
count = 1 # read at least the length byte
while count > 0:
rx = spi.frame([ADDR_FIFO])
data = rx[0]
if len(buf) == 0:
count = data
else:
count -= 1
buf.append(data)
spi.deselect()
trace("readfifo:" + toHexListString(buf))
return buf
def HRF_readfifo_burst():
"""Read bytes from the payload FIFO using burst read"""
#first byte read is the length in remaining bytes
buf = []
spi.select()
spi.frame([ADDR_FIFO])
count = 1 # read at least the length byte
while count > 0:
rx = spi.frame([ADDR_FIFO])
data = rx[0]
if len(buf) == 0:
count = data
else:
count -= 1
buf.append(data)
spi.deselect()
trace("readfifo:" + toHexListString(buf))
return buf
def HRF_writefifo_burst(buf):
"""Write all bytes in buf to the payload FIFO, in a single burst"""
spi.select()
buf.insert(0, ADDR_FIFO | MASK_WRITE_DATA)
spi.frame(buf)
spi.deselect()
def HRF_writereg(addr, data):
"""Write an 8 bit value to a register"""
buf = [addr | MASK_WRITE_DATA, data]
spi.select()
spi.frame(buf)
spi.deselect()
def HRF_writefifo_burst(buf):
"""Write all bytes in buf to the payload FIFO, in a single burst"""
spi.select()
buf.insert(0, ADDR_FIFO | MASK_WRITE_DATA)
spi.frame(buf)
spi.deselect()
def HRF_writereg(addr, data):
"""Write an 8 bit value to a register"""
buf = [addr | MASK_WRITE_DATA, data]
spi.select()
spi.frame(buf)
spi.deselect()