annotate gtm900/fw-reg-config @ 392:35009c936a4a

compal/melody-extr: first attempt at actual melody extraction
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 01 Apr 2022 06:03:47 +0000
parents 6791499809e0
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
292
6791499809e0 gtm900/fw-reg-config: note that the main config regs are as expected
Mychaela Falconia <falcon@freecalypso.org>
parents: 291
diff changeset
1 Reading the ASIC_CONF_REG, IO_CONF_REG and IO_CNTL_REG registers via ETM when
6791499809e0 gtm900/fw-reg-config: note that the main config regs are as expected
Mychaela Falconia <falcon@freecalypso.org>
parents: 291
diff changeset
2 the firmware is running shows the same values that are set by the Init_Target()
6791499809e0 gtm900/fw-reg-config: note that the main config regs are as expected
Mychaela Falconia <falcon@freecalypso.org>
parents: 291
diff changeset
3 code we have disassembled.
6791499809e0 gtm900/fw-reg-config: note that the main config regs are as expected
Mychaela Falconia <falcon@freecalypso.org>
parents: 291
diff changeset
4
291
7d0b9a3de444 gtm900/fw-reg-config note added
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
5 When the firmware is running, reading the ARMIO_LATCH_OUT register via ETM
7d0b9a3de444 gtm900/fw-reg-config note added
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
6 returns 0x3F07, i.e., GPIO outputs 0, 1 and 2 (RI, DSR, DCD) are 1s, meaning
7d0b9a3de444 gtm900/fw-reg-config note added
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
7 modem control signals inactive.
7d0b9a3de444 gtm900/fw-reg-config note added
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
8
7d0b9a3de444 gtm900/fw-reg-config note added
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
9 APCOFF register setting in the Iota ABB is 0x070, same as in our reference fw.