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flash: load data as static

This commit is contained in:
occheung 2020-09-24 17:15:07 +08:00
parent 26c987bd04
commit a855e9f699
1 changed files with 4 additions and 2 deletions
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6
src/flash.rs
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@ -12,13 +12,15 @@ pub enum FPGAFlashError {
ResetStatusError, ResetStatusError,
} }
const DATA: &'static [u8] = include_bytes!("../build/top.bin");
// A public method to flash iCE40 FPGA on Humpback // A public method to flash iCE40 FPGA on Humpback
pub fn flash_ice40_fpga<SPI: Transfer<u8>, pub fn flash_ice40_fpga<SPI: Transfer<u8>,
SS: OutputPin, SS: OutputPin,
RST: OutputPin, RST: OutputPin,
DELAY: DelayUs<u32>, DELAY: DelayUs<u32>,
DONE: InputPin> DONE: InputPin>
(mut spi: SPI, mut ss: SS, mut creset: RST, cdone: DONE, mut delay: DELAY, data: &[u8]) -> Result<(), FPGAFlashError> (mut spi: SPI, mut ss: SS, mut creset: RST, cdone: DONE, mut delay: DELAY) -> Result<(), FPGAFlashError>
{ {
// Data buffer setup // Data buffer setup
let mut dummy_byte :[u8; 1] = [0x00]; let mut dummy_byte :[u8; 1] = [0x00];
@ -62,7 +64,7 @@ pub fn flash_ice40_fpga<SPI: Transfer<u8>,
.map_err(|_| FPGAFlashError::NegotiationError)?; .map_err(|_| FPGAFlashError::NegotiationError)?;
// Send the whole image without interruption // Send the whole image without interruption
for byte in data.into_iter() { for byte in DATA.into_iter() {
let mut single_byte_slice = [*byte]; let mut single_byte_slice = [*byte];
spi.transfer(&mut single_byte_slice) spi.transfer(&mut single_byte_slice)
.map_err(|_| FPGAFlashError::SPICommunicationError)?; .map_err(|_| FPGAFlashError::SPICommunicationError)?;