kai/pounder_test
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work around erratum 2.10.2

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This commit is contained in:
Robert Jördens 2019-03-19 15:39:01 +00:00
parent 4b49f29b17
commit 8fbb1c751b
1 changed files with 5 additions and 5 deletions
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10
src/main.rs
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@ -141,8 +141,8 @@ fn main() -> ! {
rcc.cr.modify(|_, w| w.pll2on().set_bit()); rcc.cr.modify(|_, w| w.pll2on().set_bit());
while rcc.cr.read().pll2rdy().bit_is_clear() {} while rcc.cr.read().pll2rdy().bit_is_clear() {}
// hclk 200 MHz, pclk 100 MHz // hclk 200 MHz, pclk 50 MHz
let dapb = 0b100; let dapb = 0b101;
rcc.d1cfgr.write(|w| unsafe { rcc.d1cfgr.write(|w| unsafe {
w.d1cpre().bits(0) // sys_ck not divided w.d1cpre().bits(0) // sys_ck not divided
.hpre().bits(0b1000) // rcc_hclk3 = sys_d1cpre_ck / 2 .hpre().bits(0b1000) // rcc_hclk3 = sys_d1cpre_ck / 2
@ -268,7 +268,7 @@ fn main() -> ! {
let spi1 = dp.SPI1; let spi1 = dp.SPI1;
spi1.cfg1.modify(|_, w| unsafe { spi1.cfg1.modify(|_, w| unsafe {
// w.mbr().bits(0) // clk/2 // w.mbr().bits(0) // clk/2
w.mbr().bits(1) // FIXME w.mbr().bits(0) // FIXME
.dsize().bits(16 - 1) .dsize().bits(16 - 1)
.fthvl().bits(1 - 1) // one data .fthvl().bits(1 - 1) // one data
}); });
@ -356,7 +356,7 @@ fn main() -> ! {
spi2.cr1.modify(|r, w| unsafe { w.bits(r.bits() | (1 << 9)) }); spi2.cr1.modify(|r, w| unsafe { w.bits(r.bits() | (1 << 9)) });
loop { loop {
// cortex_m::interrupt::free(|_cs| { }); // cortex_m::interrupt::free(|_cs| { });
// spi1.cr1.write(|w| w.cstart().set_bit()); // spi1.cr1.write(|w| w.cstart().set_bit());
spi1.cr1.modify(|r, w| unsafe { w.bits(r.bits() | (1 << 9)) }); spi1.cr1.modify(|r, w| unsafe { w.bits(r.bits() | (1 << 9)) });
while spi1.sr.read().eot().bit_is_clear() {} while spi1.sr.read().eot().bit_is_clear() {}
@ -368,7 +368,7 @@ fn main() -> ! {
// while spi2.sr.read().txp().bit_is_clear() {} // while spi2.sr.read().txp().bit_is_clear() {}
// spi2.txdr.write(|w| unsafe { w.bits(d as u32) }); // spi2.txdr.write(|w| unsafe { w.bits(d as u32) });
unsafe { ptr::write_volatile(&spi2.txdr as *const _ as *mut u16, d) }; unsafe { ptr::write_volatile(&spi2.txdr as *const _ as *mut u16, d) };
// write(|w| unsafe { w.bits(d as u32) }); // write(|w| unsafe { w.bits(d as u32) });
// while spi2.sr.read().txc().bit_is_clear() {} // while spi2.sr.read().txc().bit_is_clear() {}
// while spi2.sr.read().eot().bit_is_clear() {} // while spi2.sr.read().eot().bit_is_clear() {}
// spi2.ifcr.write(|w| w.eotc().set_bit()); // spi2.ifcr.write(|w| w.eotc().set_bit());